/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_valuebound100.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-08 11:04:15,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-08 11:04:15,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-08 11:04:15,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-08 11:04:15,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-08 11:04:15,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-08 11:04:15,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-08 11:04:15,465 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-08 11:04:15,471 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-08 11:04:15,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-08 11:04:15,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-08 11:04:15,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-08 11:04:15,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-08 11:04:15,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-08 11:04:15,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-08 11:04:15,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-08 11:04:15,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-08 11:04:15,473 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-08 11:04:15,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-08 11:04:15,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-08 11:04:15,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-08 11:04:15,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-08 11:04:15,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-08 11:04:15,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 11:04:15,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-08 11:04:15,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-08 11:04:15,474 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-08 11:04:15,474 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-08 11:04:15,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-08 11:04:15,474 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-08 11:04:15,474 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-08 11:04:15,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-08 11:04:15,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-08 11:04:15,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-08 11:04:15,659 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-08 11:04:15,660 INFO L275 PluginConnector]: CDTParser initialized [2022-04-08 11:04:15,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_valuebound100.c [2022-04-08 11:04:15,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b43a1e33/c450efbc3f484f9fa2619f4174e6f940/FLAG89366301c [2022-04-08 11:04:16,013 INFO L306 CDTParser]: Found 1 translation units. [2022-04-08 11:04:16,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_valuebound100.c [2022-04-08 11:04:16,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b43a1e33/c450efbc3f484f9fa2619f4174e6f940/FLAG89366301c [2022-04-08 11:04:16,028 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b43a1e33/c450efbc3f484f9fa2619f4174e6f940 [2022-04-08 11:04:16,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-08 11:04:16,031 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-08 11:04:16,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-08 11:04:16,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-08 11:04:16,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-08 11:04:16,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 11:04:16" (1/1) ... [2022-04-08 11:04:16,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa2f323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 11:04:16, skipping insertion in model container [2022-04-08 11:04:16,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 11:04:16" (1/1) ... [2022-04-08 11:04:16,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-08 11:04:16,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-08 11:04:16,155 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_valuebound100.c[597,610] [2022-04-08 11:04:16,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 11:04:16,186 INFO L203 MainTranslator]: Completed pre-run [2022-04-08 11:04:16,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_valuebound100.c[597,610] [2022-04-08 11:04:16,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 11:04:16,217 INFO L208 MainTranslator]: Completed translation [2022-04-08 11:04:16,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 11:04:16 WrapperNode [2022-04-08 11:04:16,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-08 11:04:16,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-08 11:04:16,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-08 11:04:16,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-08 11:04:16,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 11:04:16" (1/1) ... [2022-04-08 11:04:16,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 11:04:16" (1/1) ... [2022-04-08 11:04:16,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 11:04:16" (1/1) ... [2022-04-08 11:04:16,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 11:04:16" (1/1) ... [2022-04-08 11:04:16,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 11:04:16" (1/1) ... [2022-04-08 11:04:16,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 11:04:16" (1/1) ... [2022-04-08 11:04:16,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 11:04:16" (1/1) ... [2022-04-08 11:04:16,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-08 11:04:16,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-08 11:04:16,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-08 11:04:16,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-08 11:04:16,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 11:04:16" (1/1) ... [2022-04-08 11:04:16,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 11:04:16,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:04:16,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-08 11:04:16,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-08 11:04:16,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-08 11:04:16,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-08 11:04:16,282 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-08 11:04:16,282 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-08 11:04:16,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-08 11:04:16,282 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-08 11:04:16,282 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-08 11:04:16,282 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-08 11:04:16,282 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-08 11:04:16,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-08 11:04:16,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-08 11:04:16,283 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-08 11:04:16,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-08 11:04:16,283 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-08 11:04:16,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-08 11:04:16,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-08 11:04:16,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-08 11:04:16,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-08 11:04:16,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-08 11:04:16,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-08 11:04:16,327 INFO L234 CfgBuilder]: Building ICFG [2022-04-08 11:04:16,329 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-08 11:04:16,446 INFO L275 CfgBuilder]: Performing block encoding [2022-04-08 11:04:16,451 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-08 11:04:16,451 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-08 11:04:16,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 11:04:16 BoogieIcfgContainer [2022-04-08 11:04:16,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-08 11:04:16,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-08 11:04:16,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-08 11:04:16,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-08 11:04:16,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.04 11:04:16" (1/3) ... [2022-04-08 11:04:16,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d647ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 11:04:16, skipping insertion in model container [2022-04-08 11:04:16,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 11:04:16" (2/3) ... [2022-04-08 11:04:16,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d647ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 11:04:16, skipping insertion in model container [2022-04-08 11:04:16,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 11:04:16" (3/3) ... [2022-04-08 11:04:16,457 INFO L111 eAbstractionObserver]: Analyzing ICFG bresenham-ll_valuebound100.c [2022-04-08 11:04:16,460 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-08 11:04:16,460 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-08 11:04:16,504 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-08 11:04:16,508 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-08 11:04:16,509 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-08 11:04:16,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 20 states have (on average 1.35) internal successors, (27), 21 states have internal predecessors, (27), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-08 11:04:16,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-08 11:04:16,542 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:04:16,542 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:04:16,543 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:04:16,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:04:16,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1867489771, now seen corresponding path program 1 times [2022-04-08 11:04:16,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:04:16,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1317577540] [2022-04-08 11:04:16,560 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:04:16,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1867489771, now seen corresponding path program 2 times [2022-04-08 11:04:16,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:04:16,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086740430] [2022-04-08 11:04:16,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:04:16,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:04:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:04:16,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 11:04:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:04:16,743 INFO L290 TraceCheckUtils]: 0: Hoare triple {48#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {35#true} is VALID [2022-04-08 11:04:16,743 INFO L290 TraceCheckUtils]: 1: Hoare triple {35#true} assume true; {35#true} is VALID [2022-04-08 11:04:16,743 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {35#true} {35#true} #69#return; {35#true} is VALID [2022-04-08 11:04:16,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-08 11:04:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:04:16,759 INFO L290 TraceCheckUtils]: 0: Hoare triple {35#true} ~cond := #in~cond; {35#true} is VALID [2022-04-08 11:04:16,760 INFO L290 TraceCheckUtils]: 1: Hoare triple {35#true} assume 0 == ~cond;assume false; {36#false} is VALID [2022-04-08 11:04:16,760 INFO L290 TraceCheckUtils]: 2: Hoare triple {36#false} assume true; {36#false} is VALID [2022-04-08 11:04:16,760 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {36#false} {35#true} #61#return; {36#false} is VALID [2022-04-08 11:04:16,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-08 11:04:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:04:16,776 INFO L290 TraceCheckUtils]: 0: Hoare triple {35#true} ~cond := #in~cond; {35#true} is VALID [2022-04-08 11:04:16,776 INFO L290 TraceCheckUtils]: 1: Hoare triple {35#true} assume 0 == ~cond;assume false; {36#false} is VALID [2022-04-08 11:04:16,777 INFO L290 TraceCheckUtils]: 2: Hoare triple {36#false} assume true; {36#false} is VALID [2022-04-08 11:04:16,777 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {36#false} {36#false} #63#return; {36#false} is VALID [2022-04-08 11:04:16,778 INFO L272 TraceCheckUtils]: 0: Hoare triple {35#true} call ULTIMATE.init(); {48#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 11:04:16,778 INFO L290 TraceCheckUtils]: 1: Hoare triple {48#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {35#true} is VALID [2022-04-08 11:04:16,778 INFO L290 TraceCheckUtils]: 2: Hoare triple {35#true} assume true; {35#true} is VALID [2022-04-08 11:04:16,778 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {35#true} {35#true} #69#return; {35#true} is VALID [2022-04-08 11:04:16,779 INFO L272 TraceCheckUtils]: 4: Hoare triple {35#true} call #t~ret8 := main(); {35#true} is VALID [2022-04-08 11:04:16,779 INFO L290 TraceCheckUtils]: 5: Hoare triple {35#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {35#true} is VALID [2022-04-08 11:04:16,779 INFO L272 TraceCheckUtils]: 6: Hoare triple {35#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {35#true} is VALID [2022-04-08 11:04:16,779 INFO L290 TraceCheckUtils]: 7: Hoare triple {35#true} ~cond := #in~cond; {35#true} is VALID [2022-04-08 11:04:16,780 INFO L290 TraceCheckUtils]: 8: Hoare triple {35#true} assume 0 == ~cond;assume false; {36#false} is VALID [2022-04-08 11:04:16,780 INFO L290 TraceCheckUtils]: 9: Hoare triple {36#false} assume true; {36#false} is VALID [2022-04-08 11:04:16,780 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {36#false} {35#true} #61#return; {36#false} is VALID [2022-04-08 11:04:16,781 INFO L290 TraceCheckUtils]: 11: Hoare triple {36#false} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {36#false} is VALID [2022-04-08 11:04:16,781 INFO L272 TraceCheckUtils]: 12: Hoare triple {36#false} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {35#true} is VALID [2022-04-08 11:04:16,781 INFO L290 TraceCheckUtils]: 13: Hoare triple {35#true} ~cond := #in~cond; {35#true} is VALID [2022-04-08 11:04:16,781 INFO L290 TraceCheckUtils]: 14: Hoare triple {35#true} assume 0 == ~cond;assume false; {36#false} is VALID [2022-04-08 11:04:16,781 INFO L290 TraceCheckUtils]: 15: Hoare triple {36#false} assume true; {36#false} is VALID [2022-04-08 11:04:16,782 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {36#false} {36#false} #63#return; {36#false} is VALID [2022-04-08 11:04:16,782 INFO L290 TraceCheckUtils]: 17: Hoare triple {36#false} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {36#false} is VALID [2022-04-08 11:04:16,782 INFO L290 TraceCheckUtils]: 18: Hoare triple {36#false} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {36#false} is VALID [2022-04-08 11:04:16,782 INFO L272 TraceCheckUtils]: 19: Hoare triple {36#false} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {36#false} is VALID [2022-04-08 11:04:16,783 INFO L290 TraceCheckUtils]: 20: Hoare triple {36#false} ~cond := #in~cond; {36#false} is VALID [2022-04-08 11:04:16,783 INFO L290 TraceCheckUtils]: 21: Hoare triple {36#false} assume 0 == ~cond; {36#false} is VALID [2022-04-08 11:04:16,783 INFO L290 TraceCheckUtils]: 22: Hoare triple {36#false} assume !false; {36#false} is VALID [2022-04-08 11:04:16,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-08 11:04:16,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:04:16,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086740430] [2022-04-08 11:04:16,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086740430] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:04:16,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:04:16,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-08 11:04:16,788 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:04:16,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1317577540] [2022-04-08 11:04:16,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1317577540] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:04:16,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:04:16,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-08 11:04:16,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425982564] [2022-04-08 11:04:16,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:04:16,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2022-04-08 11:04:16,796 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:04:16,798 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-08 11:04:16,836 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:04:16,836 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-08 11:04:16,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:04:16,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-08 11:04:16,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-08 11:04:16,857 INFO L87 Difference]: Start difference. First operand has 32 states, 20 states have (on average 1.35) internal successors, (27), 21 states have internal predecessors, (27), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-08 11:04:16,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:04:16,988 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2022-04-08 11:04:16,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-08 11:04:16,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2022-04-08 11:04:16,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:04:16,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-08 11:04:16,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2022-04-08 11:04:16,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-08 11:04:17,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2022-04-08 11:04:17,001 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 74 transitions. [2022-04-08 11:04:17,092 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:04:17,098 INFO L225 Difference]: With dead ends: 57 [2022-04-08 11:04:17,098 INFO L226 Difference]: Without dead ends: 27 [2022-04-08 11:04:17,100 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-08 11:04:17,102 INFO L913 BasicCegarLoop]: 31 mSDtfsCounter, 20 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-08 11:04:17,106 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 34 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-08 11:04:17,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-04-08 11:04:17,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-04-08 11:04:17,140 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:04:17,141 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand has 27 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 11:04:17,142 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand has 27 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 11:04:17,143 INFO L87 Difference]: Start difference. First operand 27 states. Second operand has 27 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 11:04:17,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:04:17,153 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-04-08 11:04:17,155 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-04-08 11:04:17,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:04:17,155 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:04:17,155 INFO L74 IsIncluded]: Start isIncluded. First operand has 27 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 27 states. [2022-04-08 11:04:17,156 INFO L87 Difference]: Start difference. First operand has 27 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 27 states. [2022-04-08 11:04:17,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:04:17,158 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-04-08 11:04:17,158 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-04-08 11:04:17,158 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:04:17,158 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:04:17,158 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:04:17,159 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:04:17,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 11:04:17,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-04-08 11:04:17,161 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 23 [2022-04-08 11:04:17,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:04:17,161 INFO L478 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-04-08 11:04:17,162 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-08 11:04:17,162 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 27 states and 30 transitions. [2022-04-08 11:04:17,192 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:04:17,192 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-04-08 11:04:17,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-08 11:04:17,193 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:04:17,193 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:04:17,194 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-08 11:04:17,194 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:04:17,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:04:17,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1827672217, now seen corresponding path program 1 times [2022-04-08 11:04:17,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:04:17,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [708895699] [2022-04-08 11:04:17,199 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:04:17,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1827672217, now seen corresponding path program 2 times [2022-04-08 11:04:17,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:04:17,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410511510] [2022-04-08 11:04:17,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:04:17,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:04:17,226 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:04:17,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2052490077] [2022-04-08 11:04:17,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-08 11:04:17,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:04:17,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:04:17,228 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:04:17,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-08 11:04:17,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-04-08 11:04:17,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:04:17,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 13 conjunts are in the unsatisfiable core [2022-04-08 11:04:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:04:17,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:04:17,405 INFO L272 TraceCheckUtils]: 0: Hoare triple {273#true} call ULTIMATE.init(); {273#true} is VALID [2022-04-08 11:04:17,405 INFO L290 TraceCheckUtils]: 1: Hoare triple {273#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {273#true} is VALID [2022-04-08 11:04:17,405 INFO L290 TraceCheckUtils]: 2: Hoare triple {273#true} assume true; {273#true} is VALID [2022-04-08 11:04:17,405 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {273#true} {273#true} #69#return; {273#true} is VALID [2022-04-08 11:04:17,405 INFO L272 TraceCheckUtils]: 4: Hoare triple {273#true} call #t~ret8 := main(); {273#true} is VALID [2022-04-08 11:04:17,405 INFO L290 TraceCheckUtils]: 5: Hoare triple {273#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {273#true} is VALID [2022-04-08 11:04:17,406 INFO L272 TraceCheckUtils]: 6: Hoare triple {273#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {273#true} is VALID [2022-04-08 11:04:17,406 INFO L290 TraceCheckUtils]: 7: Hoare triple {273#true} ~cond := #in~cond; {273#true} is VALID [2022-04-08 11:04:17,406 INFO L290 TraceCheckUtils]: 8: Hoare triple {273#true} assume !(0 == ~cond); {273#true} is VALID [2022-04-08 11:04:17,406 INFO L290 TraceCheckUtils]: 9: Hoare triple {273#true} assume true; {273#true} is VALID [2022-04-08 11:04:17,406 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {273#true} {273#true} #61#return; {273#true} is VALID [2022-04-08 11:04:17,406 INFO L290 TraceCheckUtils]: 11: Hoare triple {273#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {273#true} is VALID [2022-04-08 11:04:17,406 INFO L272 TraceCheckUtils]: 12: Hoare triple {273#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {273#true} is VALID [2022-04-08 11:04:17,407 INFO L290 TraceCheckUtils]: 13: Hoare triple {273#true} ~cond := #in~cond; {273#true} is VALID [2022-04-08 11:04:17,407 INFO L290 TraceCheckUtils]: 14: Hoare triple {273#true} assume !(0 == ~cond); {273#true} is VALID [2022-04-08 11:04:17,407 INFO L290 TraceCheckUtils]: 15: Hoare triple {273#true} assume true; {273#true} is VALID [2022-04-08 11:04:17,407 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {273#true} {273#true} #63#return; {273#true} is VALID [2022-04-08 11:04:17,408 INFO L290 TraceCheckUtils]: 17: Hoare triple {273#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {329#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:04:17,408 INFO L290 TraceCheckUtils]: 18: Hoare triple {329#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {333#(and (= main_~xy~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~yx~0 0))} is VALID [2022-04-08 11:04:17,409 INFO L272 TraceCheckUtils]: 19: Hoare triple {333#(and (= main_~xy~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~yx~0 0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {337#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:04:17,410 INFO L290 TraceCheckUtils]: 20: Hoare triple {337#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {341#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:04:17,410 INFO L290 TraceCheckUtils]: 21: Hoare triple {341#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {274#false} is VALID [2022-04-08 11:04:17,410 INFO L290 TraceCheckUtils]: 22: Hoare triple {274#false} assume !false; {274#false} is VALID [2022-04-08 11:04:17,410 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-08 11:04:17,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-08 11:04:17,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:04:17,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410511510] [2022-04-08 11:04:17,411 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:04:17,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052490077] [2022-04-08 11:04:17,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052490077] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:04:17,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:04:17,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-08 11:04:17,412 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:04:17,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [708895699] [2022-04-08 11:04:17,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [708895699] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:04:17,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:04:17,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-08 11:04:17,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167842073] [2022-04-08 11:04:17,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:04:17,413 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2022-04-08 11:04:17,413 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:04:17,413 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 11:04:17,428 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:04:17,428 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-08 11:04:17,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:04:17,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-08 11:04:17,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-08 11:04:17,429 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 11:04:17,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:04:17,621 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-04-08 11:04:17,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-08 11:04:17,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2022-04-08 11:04:17,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:04:17,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 11:04:17,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 44 transitions. [2022-04-08 11:04:17,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 11:04:17,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 44 transitions. [2022-04-08 11:04:17,625 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 44 transitions. [2022-04-08 11:04:17,660 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:04:17,662 INFO L225 Difference]: With dead ends: 39 [2022-04-08 11:04:17,662 INFO L226 Difference]: Without dead ends: 35 [2022-04-08 11:04:17,662 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-08 11:04:17,663 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 10 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 11:04:17,664 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 91 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 11:04:17,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-04-08 11:04:17,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2022-04-08 11:04:17,703 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:04:17,703 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand has 34 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-08 11:04:17,703 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand has 34 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-08 11:04:17,704 INFO L87 Difference]: Start difference. First operand 35 states. Second operand has 34 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-08 11:04:17,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:04:17,705 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2022-04-08 11:04:17,706 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-04-08 11:04:17,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:04:17,706 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:04:17,706 INFO L74 IsIncluded]: Start isIncluded. First operand has 34 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 35 states. [2022-04-08 11:04:17,707 INFO L87 Difference]: Start difference. First operand has 34 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 35 states. [2022-04-08 11:04:17,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:04:17,708 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2022-04-08 11:04:17,708 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-04-08 11:04:17,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:04:17,709 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:04:17,709 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:04:17,709 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:04:17,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-08 11:04:17,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-04-08 11:04:17,714 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 23 [2022-04-08 11:04:17,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:04:17,714 INFO L478 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-04-08 11:04:17,714 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 11:04:17,714 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 34 states and 37 transitions. [2022-04-08 11:04:17,743 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:04:17,743 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-04-08 11:04:17,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-08 11:04:17,745 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:04:17,746 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:04:17,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-08 11:04:17,959 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:04:17,960 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:04:17,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:04:17,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1419291471, now seen corresponding path program 1 times [2022-04-08 11:04:17,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:04:17,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [293533890] [2022-04-08 11:04:17,961 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:04:17,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1419291471, now seen corresponding path program 2 times [2022-04-08 11:04:17,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:04:17,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780904318] [2022-04-08 11:04:17,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:04:17,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:04:17,976 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:04:17,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1575652384] [2022-04-08 11:04:17,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-08 11:04:17,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:04:17,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:04:17,980 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:04:18,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-08 11:04:18,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-08 11:04:18,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:04:18,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 24 conjunts are in the unsatisfiable core [2022-04-08 11:04:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:04:18,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:04:18,386 INFO L272 TraceCheckUtils]: 0: Hoare triple {567#true} call ULTIMATE.init(); {567#true} is VALID [2022-04-08 11:04:18,386 INFO L290 TraceCheckUtils]: 1: Hoare triple {567#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {567#true} is VALID [2022-04-08 11:04:18,386 INFO L290 TraceCheckUtils]: 2: Hoare triple {567#true} assume true; {567#true} is VALID [2022-04-08 11:04:18,386 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {567#true} {567#true} #69#return; {567#true} is VALID [2022-04-08 11:04:18,386 INFO L272 TraceCheckUtils]: 4: Hoare triple {567#true} call #t~ret8 := main(); {567#true} is VALID [2022-04-08 11:04:18,386 INFO L290 TraceCheckUtils]: 5: Hoare triple {567#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {567#true} is VALID [2022-04-08 11:04:18,387 INFO L272 TraceCheckUtils]: 6: Hoare triple {567#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {567#true} is VALID [2022-04-08 11:04:18,387 INFO L290 TraceCheckUtils]: 7: Hoare triple {567#true} ~cond := #in~cond; {567#true} is VALID [2022-04-08 11:04:18,387 INFO L290 TraceCheckUtils]: 8: Hoare triple {567#true} assume !(0 == ~cond); {567#true} is VALID [2022-04-08 11:04:18,387 INFO L290 TraceCheckUtils]: 9: Hoare triple {567#true} assume true; {567#true} is VALID [2022-04-08 11:04:18,387 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {567#true} {567#true} #61#return; {567#true} is VALID [2022-04-08 11:04:18,387 INFO L290 TraceCheckUtils]: 11: Hoare triple {567#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {567#true} is VALID [2022-04-08 11:04:18,387 INFO L272 TraceCheckUtils]: 12: Hoare triple {567#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {567#true} is VALID [2022-04-08 11:04:18,388 INFO L290 TraceCheckUtils]: 13: Hoare triple {567#true} ~cond := #in~cond; {611#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-08 11:04:18,388 INFO L290 TraceCheckUtils]: 14: Hoare triple {611#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} assume !(0 == ~cond); {615#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-08 11:04:18,389 INFO L290 TraceCheckUtils]: 15: Hoare triple {615#(not (= |assume_abort_if_not_#in~cond| 0))} assume true; {615#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-08 11:04:18,389 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {615#(not (= |assume_abort_if_not_#in~cond| 0))} {567#true} #63#return; {622#(and (<= 0 main_~Y~0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:04:18,390 INFO L290 TraceCheckUtils]: 17: Hoare triple {622#(and (<= 0 main_~Y~0) (<= main_~Y~0 100))} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {626#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:04:18,390 INFO L290 TraceCheckUtils]: 18: Hoare triple {626#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {626#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:04:18,390 INFO L272 TraceCheckUtils]: 19: Hoare triple {626#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {567#true} is VALID [2022-04-08 11:04:18,391 INFO L290 TraceCheckUtils]: 20: Hoare triple {567#true} ~cond := #in~cond; {567#true} is VALID [2022-04-08 11:04:18,391 INFO L290 TraceCheckUtils]: 21: Hoare triple {567#true} assume !(0 == ~cond); {567#true} is VALID [2022-04-08 11:04:18,391 INFO L290 TraceCheckUtils]: 22: Hoare triple {567#true} assume true; {567#true} is VALID [2022-04-08 11:04:18,391 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {567#true} {626#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} #65#return; {626#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:04:18,392 INFO L290 TraceCheckUtils]: 24: Hoare triple {626#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} assume !!(~x~0 <= ~X~0); {626#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:04:18,393 INFO L290 TraceCheckUtils]: 25: Hoare triple {626#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {651#(and (= main_~x~0 0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:04:18,394 INFO L290 TraceCheckUtils]: 26: Hoare triple {651#(and (= main_~x~0 0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* (- 2) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {655#(and (= main_~x~0 1) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:04:18,395 INFO L290 TraceCheckUtils]: 27: Hoare triple {655#(and (= main_~x~0 1) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* (- 2) main_~Y~0))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {659#(and (= main_~xy~0 0) (<= 0 main_~Y~0) (= main_~Y~0 main_~yx~0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:04:18,396 INFO L272 TraceCheckUtils]: 28: Hoare triple {659#(and (= main_~xy~0 0) (<= 0 main_~Y~0) (= main_~Y~0 main_~yx~0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* (- 2) main_~Y~0))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {663#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:04:18,396 INFO L290 TraceCheckUtils]: 29: Hoare triple {663#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {667#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:04:18,397 INFO L290 TraceCheckUtils]: 30: Hoare triple {667#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {568#false} is VALID [2022-04-08 11:04:18,397 INFO L290 TraceCheckUtils]: 31: Hoare triple {568#false} assume !false; {568#false} is VALID [2022-04-08 11:04:18,398 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-08 11:04:18,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:04:18,603 INFO L290 TraceCheckUtils]: 31: Hoare triple {568#false} assume !false; {568#false} is VALID [2022-04-08 11:04:18,603 INFO L290 TraceCheckUtils]: 30: Hoare triple {667#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {568#false} is VALID [2022-04-08 11:04:18,604 INFO L290 TraceCheckUtils]: 29: Hoare triple {663#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {667#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:04:18,604 INFO L272 TraceCheckUtils]: 28: Hoare triple {683#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {663#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:04:18,605 INFO L290 TraceCheckUtils]: 27: Hoare triple {687#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {683#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} is VALID [2022-04-08 11:04:18,614 INFO L290 TraceCheckUtils]: 26: Hoare triple {691#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {687#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:04:18,614 INFO L290 TraceCheckUtils]: 25: Hoare triple {687#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {691#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} is VALID [2022-04-08 11:04:18,615 INFO L290 TraceCheckUtils]: 24: Hoare triple {687#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !!(~x~0 <= ~X~0); {687#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:04:18,617 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {567#true} {687#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} #65#return; {687#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:04:18,617 INFO L290 TraceCheckUtils]: 22: Hoare triple {567#true} assume true; {567#true} is VALID [2022-04-08 11:04:18,617 INFO L290 TraceCheckUtils]: 21: Hoare triple {567#true} assume !(0 == ~cond); {567#true} is VALID [2022-04-08 11:04:18,617 INFO L290 TraceCheckUtils]: 20: Hoare triple {567#true} ~cond := #in~cond; {567#true} is VALID [2022-04-08 11:04:18,617 INFO L272 TraceCheckUtils]: 19: Hoare triple {687#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {567#true} is VALID [2022-04-08 11:04:18,618 INFO L290 TraceCheckUtils]: 18: Hoare triple {687#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {687#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:04:18,620 INFO L290 TraceCheckUtils]: 17: Hoare triple {567#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {687#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:04:18,620 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {567#true} {567#true} #63#return; {567#true} is VALID [2022-04-08 11:04:18,620 INFO L290 TraceCheckUtils]: 15: Hoare triple {567#true} assume true; {567#true} is VALID [2022-04-08 11:04:18,620 INFO L290 TraceCheckUtils]: 14: Hoare triple {567#true} assume !(0 == ~cond); {567#true} is VALID [2022-04-08 11:04:18,620 INFO L290 TraceCheckUtils]: 13: Hoare triple {567#true} ~cond := #in~cond; {567#true} is VALID [2022-04-08 11:04:18,621 INFO L272 TraceCheckUtils]: 12: Hoare triple {567#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {567#true} is VALID [2022-04-08 11:04:18,621 INFO L290 TraceCheckUtils]: 11: Hoare triple {567#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {567#true} is VALID [2022-04-08 11:04:18,621 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {567#true} {567#true} #61#return; {567#true} is VALID [2022-04-08 11:04:18,621 INFO L290 TraceCheckUtils]: 9: Hoare triple {567#true} assume true; {567#true} is VALID [2022-04-08 11:04:18,621 INFO L290 TraceCheckUtils]: 8: Hoare triple {567#true} assume !(0 == ~cond); {567#true} is VALID [2022-04-08 11:04:18,621 INFO L290 TraceCheckUtils]: 7: Hoare triple {567#true} ~cond := #in~cond; {567#true} is VALID [2022-04-08 11:04:18,622 INFO L272 TraceCheckUtils]: 6: Hoare triple {567#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {567#true} is VALID [2022-04-08 11:04:18,622 INFO L290 TraceCheckUtils]: 5: Hoare triple {567#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {567#true} is VALID [2022-04-08 11:04:18,623 INFO L272 TraceCheckUtils]: 4: Hoare triple {567#true} call #t~ret8 := main(); {567#true} is VALID [2022-04-08 11:04:18,624 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {567#true} {567#true} #69#return; {567#true} is VALID [2022-04-08 11:04:18,624 INFO L290 TraceCheckUtils]: 2: Hoare triple {567#true} assume true; {567#true} is VALID [2022-04-08 11:04:18,633 INFO L290 TraceCheckUtils]: 1: Hoare triple {567#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {567#true} is VALID [2022-04-08 11:04:18,634 INFO L272 TraceCheckUtils]: 0: Hoare triple {567#true} call ULTIMATE.init(); {567#true} is VALID [2022-04-08 11:04:18,634 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-04-08 11:04:18,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:04:18,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780904318] [2022-04-08 11:04:18,634 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:04:18,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575652384] [2022-04-08 11:04:18,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575652384] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:04:18,635 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:04:18,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 14 [2022-04-08 11:04:18,635 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:04:18,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [293533890] [2022-04-08 11:04:18,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [293533890] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:04:18,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:04:18,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-08 11:04:18,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187601135] [2022-04-08 11:04:18,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:04:18,636 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2022-04-08 11:04:18,637 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:04:18,637 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 11 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-08 11:04:18,664 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:04:18,664 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-08 11:04:18,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:04:18,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-08 11:04:18,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-04-08 11:04:18,666 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-08 11:04:19,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:04:19,171 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-04-08 11:04:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-08 11:04:19,171 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2022-04-08 11:04:19,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:04:19,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-08 11:04:19,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 51 transitions. [2022-04-08 11:04:19,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-08 11:04:19,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 51 transitions. [2022-04-08 11:04:19,175 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 11 states and 51 transitions. [2022-04-08 11:04:19,237 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:04:19,238 INFO L225 Difference]: With dead ends: 48 [2022-04-08 11:04:19,238 INFO L226 Difference]: Without dead ends: 44 [2022-04-08 11:04:19,238 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-04-08 11:04:19,239 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 22 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-08 11:04:19,239 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 150 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-08 11:04:19,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-04-08 11:04:19,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2022-04-08 11:04:19,269 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:04:19,270 INFO L82 GeneralOperation]: Start isEquivalent. First operand 44 states. Second operand has 43 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-08 11:04:19,270 INFO L74 IsIncluded]: Start isIncluded. First operand 44 states. Second operand has 43 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-08 11:04:19,270 INFO L87 Difference]: Start difference. First operand 44 states. Second operand has 43 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-08 11:04:19,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:04:19,272 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2022-04-08 11:04:19,272 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-04-08 11:04:19,272 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:04:19,272 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:04:19,273 INFO L74 IsIncluded]: Start isIncluded. First operand has 43 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 44 states. [2022-04-08 11:04:19,273 INFO L87 Difference]: Start difference. First operand has 43 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 44 states. [2022-04-08 11:04:19,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:04:19,275 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2022-04-08 11:04:19,275 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-04-08 11:04:19,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:04:19,275 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:04:19,275 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:04:19,275 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:04:19,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-08 11:04:19,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2022-04-08 11:04:19,277 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 32 [2022-04-08 11:04:19,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:04:19,277 INFO L478 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2022-04-08 11:04:19,277 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-08 11:04:19,277 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 43 states and 47 transitions. [2022-04-08 11:04:19,321 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:04:19,321 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2022-04-08 11:04:19,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-08 11:04:19,322 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:04:19,322 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:04:19,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-04-08 11:04:19,535 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-04-08 11:04:19,535 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:04:19,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:04:19,536 INFO L85 PathProgramCache]: Analyzing trace with hash 355715891, now seen corresponding path program 1 times [2022-04-08 11:04:19,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:04:19,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1094880297] [2022-04-08 11:04:19,536 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:04:19,537 INFO L85 PathProgramCache]: Analyzing trace with hash 355715891, now seen corresponding path program 2 times [2022-04-08 11:04:19,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:04:19,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671815045] [2022-04-08 11:04:19,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:04:19,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:04:19,550 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:04:19,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2039703113] [2022-04-08 11:04:19,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-08 11:04:19,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:04:19,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:04:19,551 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:04:19,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-08 11:04:19,585 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-08 11:04:19,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:04:19,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 24 conjunts are in the unsatisfiable core [2022-04-08 11:04:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:04:19,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:04:19,784 INFO L272 TraceCheckUtils]: 0: Hoare triple {1048#true} call ULTIMATE.init(); {1048#true} is VALID [2022-04-08 11:04:19,784 INFO L290 TraceCheckUtils]: 1: Hoare triple {1048#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {1048#true} is VALID [2022-04-08 11:04:19,785 INFO L290 TraceCheckUtils]: 2: Hoare triple {1048#true} assume true; {1048#true} is VALID [2022-04-08 11:04:19,785 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1048#true} {1048#true} #69#return; {1048#true} is VALID [2022-04-08 11:04:19,785 INFO L272 TraceCheckUtils]: 4: Hoare triple {1048#true} call #t~ret8 := main(); {1048#true} is VALID [2022-04-08 11:04:19,785 INFO L290 TraceCheckUtils]: 5: Hoare triple {1048#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {1048#true} is VALID [2022-04-08 11:04:19,785 INFO L272 TraceCheckUtils]: 6: Hoare triple {1048#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {1048#true} is VALID [2022-04-08 11:04:19,785 INFO L290 TraceCheckUtils]: 7: Hoare triple {1048#true} ~cond := #in~cond; {1048#true} is VALID [2022-04-08 11:04:19,785 INFO L290 TraceCheckUtils]: 8: Hoare triple {1048#true} assume !(0 == ~cond); {1048#true} is VALID [2022-04-08 11:04:19,785 INFO L290 TraceCheckUtils]: 9: Hoare triple {1048#true} assume true; {1048#true} is VALID [2022-04-08 11:04:19,785 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1048#true} {1048#true} #61#return; {1048#true} is VALID [2022-04-08 11:04:19,786 INFO L290 TraceCheckUtils]: 11: Hoare triple {1048#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {1048#true} is VALID [2022-04-08 11:04:19,786 INFO L272 TraceCheckUtils]: 12: Hoare triple {1048#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {1048#true} is VALID [2022-04-08 11:04:19,786 INFO L290 TraceCheckUtils]: 13: Hoare triple {1048#true} ~cond := #in~cond; {1048#true} is VALID [2022-04-08 11:04:19,786 INFO L290 TraceCheckUtils]: 14: Hoare triple {1048#true} assume !(0 == ~cond); {1048#true} is VALID [2022-04-08 11:04:19,786 INFO L290 TraceCheckUtils]: 15: Hoare triple {1048#true} assume true; {1048#true} is VALID [2022-04-08 11:04:19,786 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {1048#true} {1048#true} #63#return; {1048#true} is VALID [2022-04-08 11:04:19,787 INFO L290 TraceCheckUtils]: 17: Hoare triple {1048#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {1104#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:04:19,787 INFO L290 TraceCheckUtils]: 18: Hoare triple {1104#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {1104#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:04:19,787 INFO L272 TraceCheckUtils]: 19: Hoare triple {1104#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {1048#true} is VALID [2022-04-08 11:04:19,787 INFO L290 TraceCheckUtils]: 20: Hoare triple {1048#true} ~cond := #in~cond; {1048#true} is VALID [2022-04-08 11:04:19,787 INFO L290 TraceCheckUtils]: 21: Hoare triple {1048#true} assume !(0 == ~cond); {1048#true} is VALID [2022-04-08 11:04:19,787 INFO L290 TraceCheckUtils]: 22: Hoare triple {1048#true} assume true; {1048#true} is VALID [2022-04-08 11:04:19,788 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {1048#true} {1104#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} #65#return; {1104#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:04:19,788 INFO L290 TraceCheckUtils]: 24: Hoare triple {1104#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} assume !!(~x~0 <= ~X~0); {1126#(and (<= main_~x~0 main_~X~0) (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:04:19,789 INFO L290 TraceCheckUtils]: 25: Hoare triple {1126#(and (<= main_~x~0 main_~X~0) (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {1130#(and (<= main_~x~0 main_~X~0) (= main_~x~0 0) (= main_~y~0 1) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} is VALID [2022-04-08 11:04:19,790 INFO L290 TraceCheckUtils]: 26: Hoare triple {1130#(and (<= main_~x~0 main_~X~0) (= main_~x~0 0) (= main_~y~0 1) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {1134#(and (= (+ (- 1) main_~x~0) 0) (= main_~y~0 1) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))) (<= main_~x~0 (+ main_~X~0 1)))} is VALID [2022-04-08 11:04:19,790 INFO L290 TraceCheckUtils]: 27: Hoare triple {1134#(and (= (+ (- 1) main_~x~0) 0) (= main_~y~0 1) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))) (<= main_~x~0 (+ main_~X~0 1)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {1138#(and (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))) (= main_~X~0 main_~xy~0) (<= 0 main_~X~0) (= main_~Y~0 main_~yx~0))} is VALID [2022-04-08 11:04:19,791 INFO L272 TraceCheckUtils]: 28: Hoare triple {1138#(and (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))) (= main_~X~0 main_~xy~0) (<= 0 main_~X~0) (= main_~Y~0 main_~yx~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {1142#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:04:19,791 INFO L290 TraceCheckUtils]: 29: Hoare triple {1142#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {1146#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:04:19,792 INFO L290 TraceCheckUtils]: 30: Hoare triple {1146#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {1049#false} is VALID [2022-04-08 11:04:19,792 INFO L290 TraceCheckUtils]: 31: Hoare triple {1049#false} assume !false; {1049#false} is VALID [2022-04-08 11:04:19,792 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-08 11:04:19,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:04:19,991 INFO L290 TraceCheckUtils]: 31: Hoare triple {1049#false} assume !false; {1049#false} is VALID [2022-04-08 11:04:19,992 INFO L290 TraceCheckUtils]: 30: Hoare triple {1146#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {1049#false} is VALID [2022-04-08 11:04:19,992 INFO L290 TraceCheckUtils]: 29: Hoare triple {1142#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {1146#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:04:19,993 INFO L272 TraceCheckUtils]: 28: Hoare triple {1162#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {1142#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:04:19,994 INFO L290 TraceCheckUtils]: 27: Hoare triple {1166#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {1162#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} is VALID [2022-04-08 11:04:20,099 INFO L290 TraceCheckUtils]: 26: Hoare triple {1170#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {1166#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:04:20,101 INFO L290 TraceCheckUtils]: 25: Hoare triple {1166#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {1170#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} is VALID [2022-04-08 11:04:20,102 INFO L290 TraceCheckUtils]: 24: Hoare triple {1177#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (<= main_~x~0 main_~X~0)))} assume !!(~x~0 <= ~X~0); {1166#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:04:20,102 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {1048#true} {1177#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (<= main_~x~0 main_~X~0)))} #65#return; {1177#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (<= main_~x~0 main_~X~0)))} is VALID [2022-04-08 11:04:20,102 INFO L290 TraceCheckUtils]: 22: Hoare triple {1048#true} assume true; {1048#true} is VALID [2022-04-08 11:04:20,103 INFO L290 TraceCheckUtils]: 21: Hoare triple {1048#true} assume !(0 == ~cond); {1048#true} is VALID [2022-04-08 11:04:20,103 INFO L290 TraceCheckUtils]: 20: Hoare triple {1048#true} ~cond := #in~cond; {1048#true} is VALID [2022-04-08 11:04:20,103 INFO L272 TraceCheckUtils]: 19: Hoare triple {1177#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (<= main_~x~0 main_~X~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {1048#true} is VALID [2022-04-08 11:04:20,103 INFO L290 TraceCheckUtils]: 18: Hoare triple {1177#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (<= main_~x~0 main_~X~0)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {1177#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (<= main_~x~0 main_~X~0)))} is VALID [2022-04-08 11:04:20,104 INFO L290 TraceCheckUtils]: 17: Hoare triple {1048#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {1177#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (<= main_~x~0 main_~X~0)))} is VALID [2022-04-08 11:04:20,104 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {1048#true} {1048#true} #63#return; {1048#true} is VALID [2022-04-08 11:04:20,104 INFO L290 TraceCheckUtils]: 15: Hoare triple {1048#true} assume true; {1048#true} is VALID [2022-04-08 11:04:20,104 INFO L290 TraceCheckUtils]: 14: Hoare triple {1048#true} assume !(0 == ~cond); {1048#true} is VALID [2022-04-08 11:04:20,104 INFO L290 TraceCheckUtils]: 13: Hoare triple {1048#true} ~cond := #in~cond; {1048#true} is VALID [2022-04-08 11:04:20,104 INFO L272 TraceCheckUtils]: 12: Hoare triple {1048#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {1048#true} is VALID [2022-04-08 11:04:20,104 INFO L290 TraceCheckUtils]: 11: Hoare triple {1048#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {1048#true} is VALID [2022-04-08 11:04:20,105 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1048#true} {1048#true} #61#return; {1048#true} is VALID [2022-04-08 11:04:20,105 INFO L290 TraceCheckUtils]: 9: Hoare triple {1048#true} assume true; {1048#true} is VALID [2022-04-08 11:04:20,105 INFO L290 TraceCheckUtils]: 8: Hoare triple {1048#true} assume !(0 == ~cond); {1048#true} is VALID [2022-04-08 11:04:20,105 INFO L290 TraceCheckUtils]: 7: Hoare triple {1048#true} ~cond := #in~cond; {1048#true} is VALID [2022-04-08 11:04:20,105 INFO L272 TraceCheckUtils]: 6: Hoare triple {1048#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {1048#true} is VALID [2022-04-08 11:04:20,105 INFO L290 TraceCheckUtils]: 5: Hoare triple {1048#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {1048#true} is VALID [2022-04-08 11:04:20,105 INFO L272 TraceCheckUtils]: 4: Hoare triple {1048#true} call #t~ret8 := main(); {1048#true} is VALID [2022-04-08 11:04:20,105 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1048#true} {1048#true} #69#return; {1048#true} is VALID [2022-04-08 11:04:20,105 INFO L290 TraceCheckUtils]: 2: Hoare triple {1048#true} assume true; {1048#true} is VALID [2022-04-08 11:04:20,105 INFO L290 TraceCheckUtils]: 1: Hoare triple {1048#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {1048#true} is VALID [2022-04-08 11:04:20,106 INFO L272 TraceCheckUtils]: 0: Hoare triple {1048#true} call ULTIMATE.init(); {1048#true} is VALID [2022-04-08 11:04:20,106 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-08 11:04:20,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:04:20,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671815045] [2022-04-08 11:04:20,106 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:04:20,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039703113] [2022-04-08 11:04:20,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039703113] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:04:20,106 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:04:20,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2022-04-08 11:04:20,107 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:04:20,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1094880297] [2022-04-08 11:04:20,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1094880297] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:04:20,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:04:20,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-08 11:04:20,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798500183] [2022-04-08 11:04:20,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:04:20,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2022-04-08 11:04:20,108 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:04:20,108 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-08 11:04:20,131 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:04:20,132 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-08 11:04:20,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:04:20,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-08 11:04:20,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-04-08 11:04:20,133 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-08 11:04:20,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:04:20,462 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2022-04-08 11:04:20,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-08 11:04:20,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2022-04-08 11:04:20,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:04:20,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-08 11:04:20,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 51 transitions. [2022-04-08 11:04:20,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-08 11:04:20,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 51 transitions. [2022-04-08 11:04:20,468 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 9 states and 51 transitions. [2022-04-08 11:04:20,504 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:04:20,508 INFO L225 Difference]: With dead ends: 56 [2022-04-08 11:04:20,508 INFO L226 Difference]: Without dead ends: 54 [2022-04-08 11:04:20,510 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-04-08 11:04:20,510 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 11 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 11:04:20,511 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 138 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 11:04:20,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-04-08 11:04:20,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2022-04-08 11:04:20,552 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:04:20,555 INFO L82 GeneralOperation]: Start isEquivalent. First operand 54 states. Second operand has 50 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-08 11:04:20,556 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand has 50 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-08 11:04:20,556 INFO L87 Difference]: Start difference. First operand 54 states. Second operand has 50 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-08 11:04:20,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:04:20,558 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-04-08 11:04:20,558 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2022-04-08 11:04:20,559 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:04:20,559 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:04:20,560 INFO L74 IsIncluded]: Start isIncluded. First operand has 50 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Second operand 54 states. [2022-04-08 11:04:20,560 INFO L87 Difference]: Start difference. First operand has 50 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Second operand 54 states. [2022-04-08 11:04:20,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:04:20,564 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-04-08 11:04:20,564 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2022-04-08 11:04:20,566 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:04:20,566 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:04:20,566 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:04:20,566 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:04:20,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-08 11:04:20,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2022-04-08 11:04:20,570 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 32 [2022-04-08 11:04:20,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:04:20,570 INFO L478 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2022-04-08 11:04:20,570 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-08 11:04:20,570 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 50 states and 54 transitions. [2022-04-08 11:04:20,618 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:04:20,618 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2022-04-08 11:04:20,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-04-08 11:04:20,619 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:04:20,619 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:04:20,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-08 11:04:20,827 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:04:20,828 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:04:20,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:04:20,828 INFO L85 PathProgramCache]: Analyzing trace with hash 125050924, now seen corresponding path program 1 times [2022-04-08 11:04:20,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:04:20,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2126431975] [2022-04-08 11:04:20,828 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:04:20,829 INFO L85 PathProgramCache]: Analyzing trace with hash 125050924, now seen corresponding path program 2 times [2022-04-08 11:04:20,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:04:20,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408465913] [2022-04-08 11:04:20,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:04:20,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:04:20,845 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:04:20,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1813360057] [2022-04-08 11:04:20,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-08 11:04:20,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:04:20,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:04:20,847 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:04:20,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-08 11:04:20,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-08 11:04:20,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:04:20,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 30 conjunts are in the unsatisfiable core [2022-04-08 11:04:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:04:20,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:04:36,011 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:04:44,101 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:04:47,740 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:04:54,357 INFO L272 TraceCheckUtils]: 0: Hoare triple {1576#true} call ULTIMATE.init(); {1576#true} is VALID [2022-04-08 11:04:54,358 INFO L290 TraceCheckUtils]: 1: Hoare triple {1576#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {1576#true} is VALID [2022-04-08 11:04:54,359 INFO L290 TraceCheckUtils]: 2: Hoare triple {1576#true} assume true; {1576#true} is VALID [2022-04-08 11:04:54,359 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1576#true} {1576#true} #69#return; {1576#true} is VALID [2022-04-08 11:04:54,359 INFO L272 TraceCheckUtils]: 4: Hoare triple {1576#true} call #t~ret8 := main(); {1576#true} is VALID [2022-04-08 11:04:54,359 INFO L290 TraceCheckUtils]: 5: Hoare triple {1576#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {1576#true} is VALID [2022-04-08 11:04:54,359 INFO L272 TraceCheckUtils]: 6: Hoare triple {1576#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {1576#true} is VALID [2022-04-08 11:04:54,359 INFO L290 TraceCheckUtils]: 7: Hoare triple {1576#true} ~cond := #in~cond; {1576#true} is VALID [2022-04-08 11:04:54,359 INFO L290 TraceCheckUtils]: 8: Hoare triple {1576#true} assume !(0 == ~cond); {1576#true} is VALID [2022-04-08 11:04:54,359 INFO L290 TraceCheckUtils]: 9: Hoare triple {1576#true} assume true; {1576#true} is VALID [2022-04-08 11:04:54,359 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1576#true} {1576#true} #61#return; {1576#true} is VALID [2022-04-08 11:04:54,359 INFO L290 TraceCheckUtils]: 11: Hoare triple {1576#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {1576#true} is VALID [2022-04-08 11:04:54,360 INFO L272 TraceCheckUtils]: 12: Hoare triple {1576#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {1576#true} is VALID [2022-04-08 11:04:54,363 INFO L290 TraceCheckUtils]: 13: Hoare triple {1576#true} ~cond := #in~cond; {1576#true} is VALID [2022-04-08 11:04:54,363 INFO L290 TraceCheckUtils]: 14: Hoare triple {1576#true} assume !(0 == ~cond); {1576#true} is VALID [2022-04-08 11:04:54,363 INFO L290 TraceCheckUtils]: 15: Hoare triple {1576#true} assume true; {1576#true} is VALID [2022-04-08 11:04:54,363 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {1576#true} {1576#true} #63#return; {1576#true} is VALID [2022-04-08 11:04:54,363 INFO L290 TraceCheckUtils]: 17: Hoare triple {1576#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {1632#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-08 11:04:54,364 INFO L290 TraceCheckUtils]: 18: Hoare triple {1632#(and (= main_~x~0 0) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {1632#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-08 11:04:54,364 INFO L272 TraceCheckUtils]: 19: Hoare triple {1632#(and (= main_~x~0 0) (= main_~y~0 0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {1576#true} is VALID [2022-04-08 11:04:54,364 INFO L290 TraceCheckUtils]: 20: Hoare triple {1576#true} ~cond := #in~cond; {1642#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:04:54,365 INFO L290 TraceCheckUtils]: 21: Hoare triple {1642#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {1646#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:04:54,365 INFO L290 TraceCheckUtils]: 22: Hoare triple {1646#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {1646#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:04:54,366 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {1646#(not (= |__VERIFIER_assert_#in~cond| 0))} {1632#(and (= main_~x~0 0) (= main_~y~0 0))} #65#return; {1632#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-08 11:04:54,366 INFO L290 TraceCheckUtils]: 24: Hoare triple {1632#(and (= main_~x~0 0) (= main_~y~0 0))} assume !!(~x~0 <= ~X~0); {1656#(and (<= main_~x~0 main_~X~0) (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-08 11:04:54,366 INFO L290 TraceCheckUtils]: 25: Hoare triple {1656#(and (<= main_~x~0 main_~X~0) (= main_~x~0 0) (= main_~y~0 0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {1660#(and (<= main_~x~0 main_~X~0) (= main_~x~0 0) (= (+ (- 1) main_~y~0) 0))} is VALID [2022-04-08 11:04:54,367 INFO L290 TraceCheckUtils]: 26: Hoare triple {1660#(and (<= main_~x~0 main_~X~0) (= main_~x~0 0) (= (+ (- 1) main_~y~0) 0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {1664#(and (= (+ (- 1) main_~y~0) 0) (<= main_~x~0 1) (<= 0 main_~X~0))} is VALID [2022-04-08 11:04:54,367 INFO L290 TraceCheckUtils]: 27: Hoare triple {1664#(and (= (+ (- 1) main_~y~0) 0) (<= main_~x~0 1) (<= 0 main_~X~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {1668#(and (= (+ (- 1) main_~y~0) 0) (<= main_~x~0 1) (<= 0 main_~X~0) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} is VALID [2022-04-08 11:04:54,367 INFO L272 TraceCheckUtils]: 28: Hoare triple {1668#(and (= (+ (- 1) main_~y~0) 0) (<= main_~x~0 1) (<= 0 main_~X~0) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {1576#true} is VALID [2022-04-08 11:04:54,368 INFO L290 TraceCheckUtils]: 29: Hoare triple {1576#true} ~cond := #in~cond; {1642#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:04:54,368 INFO L290 TraceCheckUtils]: 30: Hoare triple {1642#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {1646#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:04:54,368 INFO L290 TraceCheckUtils]: 31: Hoare triple {1646#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {1646#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:04:54,370 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {1646#(not (= |__VERIFIER_assert_#in~cond| 0))} {1668#(and (= (+ (- 1) main_~y~0) 0) (<= main_~x~0 1) (<= 0 main_~X~0) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} #65#return; {1684#(and (= (+ (- 1) main_~y~0) 0) (<= main_~x~0 1) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (<= 0 main_~X~0))} is VALID [2022-04-08 11:04:54,370 INFO L290 TraceCheckUtils]: 33: Hoare triple {1684#(and (= (+ (- 1) main_~y~0) 0) (<= main_~x~0 1) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (<= 0 main_~X~0))} assume !(~x~0 <= ~X~0); {1688#(and (= (+ (- 1) main_~y~0) 0) (<= main_~x~0 1) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (<= 0 main_~X~0) (not (<= main_~x~0 main_~X~0)))} is VALID [2022-04-08 11:04:54,376 INFO L290 TraceCheckUtils]: 34: Hoare triple {1688#(and (= (+ (- 1) main_~y~0) 0) (<= main_~x~0 1) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (<= 0 main_~X~0) (not (<= main_~x~0 main_~X~0)))} ~xy~0 := ~x~0 * ~y~0;~yx~0 := ~Y~0 * ~x~0; {1692#(and (= (+ (- 1) main_~y~0) 0) (<= 0 main_~X~0) (or (and (= (mod (+ (* main_~X~0 main_~y~0 2) main_~X~0 main_~v~0) 2) 0) (< main_~X~0 (div main_~xy~0 main_~y~0)) (= main_~yx~0 0) (= 0 (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0))) (<= (div main_~xy~0 main_~y~0) 1) (= main_~Y~0 0)) (and (= (* main_~y~0 (div (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0)) main_~xy~0) (= (mod (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0) 0) (= (mod (+ (* main_~X~0 main_~y~0 2) main_~X~0 main_~v~0) 2) 0) (<= (div (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0) 1) (not (<= (div (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0) main_~X~0)) (not (= main_~Y~0 0)) (= main_~yx~0 (* main_~Y~0 (div (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0))))))} is VALID [2022-04-08 11:04:54,378 INFO L272 TraceCheckUtils]: 35: Hoare triple {1692#(and (= (+ (- 1) main_~y~0) 0) (<= 0 main_~X~0) (or (and (= (mod (+ (* main_~X~0 main_~y~0 2) main_~X~0 main_~v~0) 2) 0) (< main_~X~0 (div main_~xy~0 main_~y~0)) (= main_~yx~0 0) (= 0 (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0))) (<= (div main_~xy~0 main_~y~0) 1) (= main_~Y~0 0)) (and (= (* main_~y~0 (div (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0)) main_~xy~0) (= (mod (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0) 0) (= (mod (+ (* main_~X~0 main_~y~0 2) main_~X~0 main_~v~0) 2) 0) (<= (div (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0) 1) (not (<= (div (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0) main_~X~0)) (not (= main_~Y~0 0)) (= main_~yx~0 (* main_~Y~0 (div (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0))))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 + 2 * ~y~0 then 1 else 0)); {1696#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:04:54,379 INFO L290 TraceCheckUtils]: 36: Hoare triple {1696#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {1700#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:04:54,379 INFO L290 TraceCheckUtils]: 37: Hoare triple {1700#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {1577#false} is VALID [2022-04-08 11:04:54,380 INFO L290 TraceCheckUtils]: 38: Hoare triple {1577#false} assume !false; {1577#false} is VALID [2022-04-08 11:04:54,380 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-04-08 11:04:54,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:05:03,392 INFO L290 TraceCheckUtils]: 38: Hoare triple {1577#false} assume !false; {1577#false} is VALID [2022-04-08 11:05:03,392 INFO L290 TraceCheckUtils]: 37: Hoare triple {1700#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {1577#false} is VALID [2022-04-08 11:05:03,393 INFO L290 TraceCheckUtils]: 36: Hoare triple {1696#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {1700#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:05:03,393 INFO L272 TraceCheckUtils]: 35: Hoare triple {1716#(= (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 main_~yx~0)) (+ (* 2 main_~xy~0) main_~X~0 main_~v~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 + 2 * ~y~0 then 1 else 0)); {1696#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:05:03,394 INFO L290 TraceCheckUtils]: 34: Hoare triple {1720#(= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))))} ~xy~0 := ~x~0 * ~y~0;~yx~0 := ~Y~0 * ~x~0; {1716#(= (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 main_~yx~0)) (+ (* 2 main_~xy~0) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:05:03,395 INFO L290 TraceCheckUtils]: 33: Hoare triple {1724#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} assume !(~x~0 <= ~X~0); {1720#(= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))))} is VALID [2022-04-08 11:05:03,396 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {1646#(not (= |__VERIFIER_assert_#in~cond| 0))} {1728#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) (* (- 2) main_~xy~0) (* main_~Y~0 2) (* 2 main_~yx~0)) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} #65#return; {1724#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} is VALID [2022-04-08 11:05:03,396 INFO L290 TraceCheckUtils]: 31: Hoare triple {1646#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {1646#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:05:03,396 INFO L290 TraceCheckUtils]: 30: Hoare triple {1738#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} assume !(0 == ~cond); {1646#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:05:03,397 INFO L290 TraceCheckUtils]: 29: Hoare triple {1576#true} ~cond := #in~cond; {1738#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 11:05:03,398 INFO L272 TraceCheckUtils]: 28: Hoare triple {1728#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) (* (- 2) main_~xy~0) (* main_~Y~0 2) (* 2 main_~yx~0)) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {1576#true} is VALID [2022-04-08 11:05:03,398 INFO L290 TraceCheckUtils]: 27: Hoare triple {1745#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) (* main_~Y~0 2) (* (* main_~X~0 main_~y~0) (- 2)) (* 2 (* main_~Y~0 main_~x~0))) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {1728#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) (* (- 2) main_~xy~0) (* main_~Y~0 2) (* 2 main_~yx~0)) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} is VALID [2022-04-08 11:05:03,399 INFO L290 TraceCheckUtils]: 26: Hoare triple {1749#(forall ((v_main_~x~0_16 Int)) (or (<= v_main_~x~0_16 main_~X~0) (not (<= v_main_~x~0_16 (+ main_~x~0 1))) (= (+ (* (* v_main_~x~0_16 main_~Y~0) 2) (* main_~y~0 2) (* main_~Y~0 2)) (+ (* 2 (* v_main_~x~0_16 main_~y~0)) (* (* v_main_~x~0_16 main_~Y~0) 2) (* main_~Y~0 2) (* (* main_~X~0 main_~y~0) (- 2))))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {1745#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) (* main_~Y~0 2) (* (* main_~X~0 main_~y~0) (- 2)) (* 2 (* main_~Y~0 main_~x~0))) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} is VALID [2022-04-08 11:05:03,402 INFO L290 TraceCheckUtils]: 25: Hoare triple {1753#(forall ((v_main_~x~0_16 Int)) (or (<= v_main_~x~0_16 main_~X~0) (not (<= v_main_~x~0_16 (+ main_~x~0 1))) (= (+ (* (* v_main_~x~0_16 main_~Y~0) 2) (* (* v_main_~x~0_16 (+ main_~y~0 1)) 2) (* main_~Y~0 2) (* (* main_~X~0 (+ main_~y~0 1)) (- 2))) (+ (* (* v_main_~x~0_16 main_~Y~0) 2) 2 (* main_~y~0 2) (* main_~Y~0 2)))))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {1749#(forall ((v_main_~x~0_16 Int)) (or (<= v_main_~x~0_16 main_~X~0) (not (<= v_main_~x~0_16 (+ main_~x~0 1))) (= (+ (* (* v_main_~x~0_16 main_~Y~0) 2) (* main_~y~0 2) (* main_~Y~0 2)) (+ (* 2 (* v_main_~x~0_16 main_~y~0)) (* (* v_main_~x~0_16 main_~Y~0) 2) (* main_~Y~0 2) (* (* main_~X~0 main_~y~0) (- 2))))))} is VALID [2022-04-08 11:05:03,403 INFO L290 TraceCheckUtils]: 24: Hoare triple {1576#true} assume !!(~x~0 <= ~X~0); {1753#(forall ((v_main_~x~0_16 Int)) (or (<= v_main_~x~0_16 main_~X~0) (not (<= v_main_~x~0_16 (+ main_~x~0 1))) (= (+ (* (* v_main_~x~0_16 main_~Y~0) 2) (* (* v_main_~x~0_16 (+ main_~y~0 1)) 2) (* main_~Y~0 2) (* (* main_~X~0 (+ main_~y~0 1)) (- 2))) (+ (* (* v_main_~x~0_16 main_~Y~0) 2) 2 (* main_~y~0 2) (* main_~Y~0 2)))))} is VALID [2022-04-08 11:05:03,404 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {1576#true} {1576#true} #65#return; {1576#true} is VALID [2022-04-08 11:05:03,404 INFO L290 TraceCheckUtils]: 22: Hoare triple {1576#true} assume true; {1576#true} is VALID [2022-04-08 11:05:03,404 INFO L290 TraceCheckUtils]: 21: Hoare triple {1576#true} assume !(0 == ~cond); {1576#true} is VALID [2022-04-08 11:05:03,404 INFO L290 TraceCheckUtils]: 20: Hoare triple {1576#true} ~cond := #in~cond; {1576#true} is VALID [2022-04-08 11:05:03,404 INFO L272 TraceCheckUtils]: 19: Hoare triple {1576#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {1576#true} is VALID [2022-04-08 11:05:03,404 INFO L290 TraceCheckUtils]: 18: Hoare triple {1576#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {1576#true} is VALID [2022-04-08 11:05:03,404 INFO L290 TraceCheckUtils]: 17: Hoare triple {1576#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {1576#true} is VALID [2022-04-08 11:05:03,404 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {1576#true} {1576#true} #63#return; {1576#true} is VALID [2022-04-08 11:05:03,404 INFO L290 TraceCheckUtils]: 15: Hoare triple {1576#true} assume true; {1576#true} is VALID [2022-04-08 11:05:03,404 INFO L290 TraceCheckUtils]: 14: Hoare triple {1576#true} assume !(0 == ~cond); {1576#true} is VALID [2022-04-08 11:05:03,404 INFO L290 TraceCheckUtils]: 13: Hoare triple {1576#true} ~cond := #in~cond; {1576#true} is VALID [2022-04-08 11:05:03,405 INFO L272 TraceCheckUtils]: 12: Hoare triple {1576#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {1576#true} is VALID [2022-04-08 11:05:03,405 INFO L290 TraceCheckUtils]: 11: Hoare triple {1576#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {1576#true} is VALID [2022-04-08 11:05:03,405 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1576#true} {1576#true} #61#return; {1576#true} is VALID [2022-04-08 11:05:03,405 INFO L290 TraceCheckUtils]: 9: Hoare triple {1576#true} assume true; {1576#true} is VALID [2022-04-08 11:05:03,405 INFO L290 TraceCheckUtils]: 8: Hoare triple {1576#true} assume !(0 == ~cond); {1576#true} is VALID [2022-04-08 11:05:03,405 INFO L290 TraceCheckUtils]: 7: Hoare triple {1576#true} ~cond := #in~cond; {1576#true} is VALID [2022-04-08 11:05:03,405 INFO L272 TraceCheckUtils]: 6: Hoare triple {1576#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {1576#true} is VALID [2022-04-08 11:05:03,405 INFO L290 TraceCheckUtils]: 5: Hoare triple {1576#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {1576#true} is VALID [2022-04-08 11:05:03,405 INFO L272 TraceCheckUtils]: 4: Hoare triple {1576#true} call #t~ret8 := main(); {1576#true} is VALID [2022-04-08 11:05:03,405 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1576#true} {1576#true} #69#return; {1576#true} is VALID [2022-04-08 11:05:03,405 INFO L290 TraceCheckUtils]: 2: Hoare triple {1576#true} assume true; {1576#true} is VALID [2022-04-08 11:05:03,406 INFO L290 TraceCheckUtils]: 1: Hoare triple {1576#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {1576#true} is VALID [2022-04-08 11:05:03,406 INFO L272 TraceCheckUtils]: 0: Hoare triple {1576#true} call ULTIMATE.init(); {1576#true} is VALID [2022-04-08 11:05:03,406 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-04-08 11:05:03,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:05:03,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408465913] [2022-04-08 11:05:03,406 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:05:03,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813360057] [2022-04-08 11:05:03,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813360057] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:05:03,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:05:03,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 22 [2022-04-08 11:05:03,407 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:05:03,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2126431975] [2022-04-08 11:05:03,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2126431975] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:05:03,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:05:03,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-08 11:05:03,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581950204] [2022-04-08 11:05:03,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:05:03,408 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 39 [2022-04-08 11:05:03,408 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:05:03,408 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 14 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:05:03,453 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:05:03,454 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-08 11:05:03,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:05:03,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-08 11:05:03,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2022-04-08 11:05:03,455 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 14 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:05:06,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-08 11:05:08,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-08 11:05:08,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:05:08,521 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2022-04-08 11:05:08,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-08 11:05:08,521 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 39 [2022-04-08 11:05:08,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:05:08,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:05:08,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 53 transitions. [2022-04-08 11:05:08,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:05:08,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 53 transitions. [2022-04-08 11:05:08,524 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 14 states and 53 transitions. [2022-04-08 11:05:08,575 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:05:08,576 INFO L225 Difference]: With dead ends: 61 [2022-04-08 11:05:08,576 INFO L226 Difference]: Without dead ends: 53 [2022-04-08 11:05:08,576 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2022-04-08 11:05:08,577 INFO L913 BasicCegarLoop]: 23 mSDtfsCounter, 16 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-08 11:05:08,577 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 219 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 293 Invalid, 2 Unknown, 0 Unchecked, 4.4s Time] [2022-04-08 11:05:08,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-04-08 11:05:08,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 43. [2022-04-08 11:05:08,621 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:05:08,622 INFO L82 GeneralOperation]: Start isEquivalent. First operand 53 states. Second operand has 43 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-08 11:05:08,622 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand has 43 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-08 11:05:08,623 INFO L87 Difference]: Start difference. First operand 53 states. Second operand has 43 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-08 11:05:08,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:05:08,624 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2022-04-08 11:05:08,624 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2022-04-08 11:05:08,624 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:05:08,624 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:05:08,624 INFO L74 IsIncluded]: Start isIncluded. First operand has 43 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 53 states. [2022-04-08 11:05:08,625 INFO L87 Difference]: Start difference. First operand has 43 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 53 states. [2022-04-08 11:05:08,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:05:08,626 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2022-04-08 11:05:08,626 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2022-04-08 11:05:08,626 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:05:08,626 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:05:08,626 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:05:08,626 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:05:08,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-08 11:05:08,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2022-04-08 11:05:08,628 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 39 [2022-04-08 11:05:08,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:05:08,628 INFO L478 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2022-04-08 11:05:08,628 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:05:08,628 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 43 states and 47 transitions. [2022-04-08 11:05:08,679 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:05:08,680 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2022-04-08 11:05:08,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-04-08 11:05:08,680 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:05:08,680 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:05:08,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-08 11:05:08,887 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:05:08,887 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:05:08,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:05:08,888 INFO L85 PathProgramCache]: Analyzing trace with hash 733948825, now seen corresponding path program 3 times [2022-04-08 11:05:08,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:05:08,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1681108672] [2022-04-08 11:05:08,888 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:05:08,888 INFO L85 PathProgramCache]: Analyzing trace with hash 733948825, now seen corresponding path program 4 times [2022-04-08 11:05:08,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:05:08,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590307637] [2022-04-08 11:05:08,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:05:08,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:05:08,902 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:05:08,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1007061322] [2022-04-08 11:05:08,902 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-08 11:05:08,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:05:08,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:05:08,903 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:05:08,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-08 11:05:08,937 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-08 11:05:08,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:05:08,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 33 conjunts are in the unsatisfiable core [2022-04-08 11:05:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:05:08,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:05:23,427 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:05:26,125 INFO L272 TraceCheckUtils]: 0: Hoare triple {2155#true} call ULTIMATE.init(); {2155#true} is VALID [2022-04-08 11:05:26,126 INFO L290 TraceCheckUtils]: 1: Hoare triple {2155#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {2155#true} is VALID [2022-04-08 11:05:26,126 INFO L290 TraceCheckUtils]: 2: Hoare triple {2155#true} assume true; {2155#true} is VALID [2022-04-08 11:05:26,126 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2155#true} {2155#true} #69#return; {2155#true} is VALID [2022-04-08 11:05:26,126 INFO L272 TraceCheckUtils]: 4: Hoare triple {2155#true} call #t~ret8 := main(); {2155#true} is VALID [2022-04-08 11:05:26,126 INFO L290 TraceCheckUtils]: 5: Hoare triple {2155#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {2155#true} is VALID [2022-04-08 11:05:26,126 INFO L272 TraceCheckUtils]: 6: Hoare triple {2155#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {2155#true} is VALID [2022-04-08 11:05:26,126 INFO L290 TraceCheckUtils]: 7: Hoare triple {2155#true} ~cond := #in~cond; {2155#true} is VALID [2022-04-08 11:05:26,126 INFO L290 TraceCheckUtils]: 8: Hoare triple {2155#true} assume !(0 == ~cond); {2155#true} is VALID [2022-04-08 11:05:26,126 INFO L290 TraceCheckUtils]: 9: Hoare triple {2155#true} assume true; {2155#true} is VALID [2022-04-08 11:05:26,127 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {2155#true} {2155#true} #61#return; {2155#true} is VALID [2022-04-08 11:05:26,127 INFO L290 TraceCheckUtils]: 11: Hoare triple {2155#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {2155#true} is VALID [2022-04-08 11:05:26,127 INFO L272 TraceCheckUtils]: 12: Hoare triple {2155#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {2155#true} is VALID [2022-04-08 11:05:26,127 INFO L290 TraceCheckUtils]: 13: Hoare triple {2155#true} ~cond := #in~cond; {2155#true} is VALID [2022-04-08 11:05:26,127 INFO L290 TraceCheckUtils]: 14: Hoare triple {2155#true} assume !(0 == ~cond); {2155#true} is VALID [2022-04-08 11:05:26,127 INFO L290 TraceCheckUtils]: 15: Hoare triple {2155#true} assume true; {2155#true} is VALID [2022-04-08 11:05:26,127 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {2155#true} {2155#true} #63#return; {2155#true} is VALID [2022-04-08 11:05:26,128 INFO L290 TraceCheckUtils]: 17: Hoare triple {2155#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {2211#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} is VALID [2022-04-08 11:05:26,128 INFO L290 TraceCheckUtils]: 18: Hoare triple {2211#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {2211#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} is VALID [2022-04-08 11:05:26,128 INFO L272 TraceCheckUtils]: 19: Hoare triple {2211#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {2155#true} is VALID [2022-04-08 11:05:26,128 INFO L290 TraceCheckUtils]: 20: Hoare triple {2155#true} ~cond := #in~cond; {2221#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:05:26,129 INFO L290 TraceCheckUtils]: 21: Hoare triple {2221#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {2225#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:05:26,129 INFO L290 TraceCheckUtils]: 22: Hoare triple {2225#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {2225#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:05:26,130 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {2225#(not (= |__VERIFIER_assert_#in~cond| 0))} {2211#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} #65#return; {2211#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} is VALID [2022-04-08 11:05:26,130 INFO L290 TraceCheckUtils]: 24: Hoare triple {2211#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} assume !!(~x~0 <= ~X~0); {2211#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} is VALID [2022-04-08 11:05:26,131 INFO L290 TraceCheckUtils]: 25: Hoare triple {2211#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {2238#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} is VALID [2022-04-08 11:05:26,131 INFO L290 TraceCheckUtils]: 26: Hoare triple {2238#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {2238#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} is VALID [2022-04-08 11:05:26,131 INFO L290 TraceCheckUtils]: 27: Hoare triple {2238#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {2245#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~y~0 0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} is VALID [2022-04-08 11:05:26,132 INFO L272 TraceCheckUtils]: 28: Hoare triple {2245#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~y~0 0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {2155#true} is VALID [2022-04-08 11:05:26,132 INFO L290 TraceCheckUtils]: 29: Hoare triple {2155#true} ~cond := #in~cond; {2221#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:05:26,132 INFO L290 TraceCheckUtils]: 30: Hoare triple {2221#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {2225#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:05:26,132 INFO L290 TraceCheckUtils]: 31: Hoare triple {2225#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {2225#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:05:26,134 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {2225#(not (= |__VERIFIER_assert_#in~cond| 0))} {2245#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~y~0 0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} #65#return; {2261#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (= main_~y~0 0))} is VALID [2022-04-08 11:05:26,134 INFO L290 TraceCheckUtils]: 33: Hoare triple {2261#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (= main_~y~0 0))} assume !!(~x~0 <= ~X~0); {2261#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (= main_~y~0 0))} is VALID [2022-04-08 11:05:26,135 INFO L290 TraceCheckUtils]: 34: Hoare triple {2261#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (= main_~y~0 0))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {2268#(and (= main_~y~0 0) (= (+ main_~v~0 (* (- 2) main_~Y~0)) (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* (- 2) main_~Y~0)) (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} is VALID [2022-04-08 11:05:26,137 INFO L290 TraceCheckUtils]: 35: Hoare triple {2268#(and (= main_~y~0 0) (= (+ main_~v~0 (* (- 2) main_~Y~0)) (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* (- 2) main_~Y~0)) (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {2272#(and (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* (- 2) main_~Y~0)) (+ (* main_~Y~0 2) (* 2 (* (+ (- 1) main_~x~0) main_~Y~0)))) (= main_~y~0 0) (= (+ main_~v~0 (* (- 2) main_~Y~0)) (+ (* (- 1) main_~X~0) (* main_~Y~0 4))))} is VALID [2022-04-08 11:05:26,142 INFO L290 TraceCheckUtils]: 36: Hoare triple {2272#(and (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* (- 2) main_~Y~0)) (+ (* main_~Y~0 2) (* 2 (* (+ (- 1) main_~x~0) main_~Y~0)))) (= main_~y~0 0) (= (+ main_~v~0 (* (- 2) main_~Y~0)) (+ (* (- 1) main_~X~0) (* main_~Y~0 4))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {2276#(and (= main_~xy~0 0) (= (+ main_~X~0 main_~v~0) (* main_~Y~0 6)) (= main_~yx~0 (* (div (+ (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0) main_~Y~0)))} is VALID [2022-04-08 11:05:26,146 INFO L272 TraceCheckUtils]: 37: Hoare triple {2276#(and (= main_~xy~0 0) (= (+ main_~X~0 main_~v~0) (* main_~Y~0 6)) (= main_~yx~0 (* (div (+ (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0) main_~Y~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {2280#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:05:26,146 INFO L290 TraceCheckUtils]: 38: Hoare triple {2280#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {2284#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:05:26,147 INFO L290 TraceCheckUtils]: 39: Hoare triple {2284#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {2156#false} is VALID [2022-04-08 11:05:26,147 INFO L290 TraceCheckUtils]: 40: Hoare triple {2156#false} assume !false; {2156#false} is VALID [2022-04-08 11:05:26,147 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-04-08 11:05:26,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:05:28,810 INFO L290 TraceCheckUtils]: 40: Hoare triple {2156#false} assume !false; {2156#false} is VALID [2022-04-08 11:05:28,810 INFO L290 TraceCheckUtils]: 39: Hoare triple {2284#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {2156#false} is VALID [2022-04-08 11:05:28,811 INFO L290 TraceCheckUtils]: 38: Hoare triple {2280#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {2284#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:05:28,811 INFO L272 TraceCheckUtils]: 37: Hoare triple {2300#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {2280#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:05:28,812 INFO L290 TraceCheckUtils]: 36: Hoare triple {2304#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {2300#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} is VALID [2022-04-08 11:05:28,814 INFO L290 TraceCheckUtils]: 35: Hoare triple {2308#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {2304#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:05:28,814 INFO L290 TraceCheckUtils]: 34: Hoare triple {2304#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {2308#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} is VALID [2022-04-08 11:05:28,815 INFO L290 TraceCheckUtils]: 33: Hoare triple {2304#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !!(~x~0 <= ~X~0); {2304#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:05:28,816 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {2225#(not (= |__VERIFIER_assert_#in~cond| 0))} {2318#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} #65#return; {2304#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:05:28,816 INFO L290 TraceCheckUtils]: 31: Hoare triple {2225#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {2225#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:05:28,817 INFO L290 TraceCheckUtils]: 30: Hoare triple {2328#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} assume !(0 == ~cond); {2225#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:05:28,817 INFO L290 TraceCheckUtils]: 29: Hoare triple {2155#true} ~cond := #in~cond; {2328#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 11:05:28,817 INFO L272 TraceCheckUtils]: 28: Hoare triple {2318#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {2155#true} is VALID [2022-04-08 11:05:28,818 INFO L290 TraceCheckUtils]: 27: Hoare triple {2155#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {2318#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} is VALID [2022-04-08 11:05:28,818 INFO L290 TraceCheckUtils]: 26: Hoare triple {2155#true} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {2155#true} is VALID [2022-04-08 11:05:28,818 INFO L290 TraceCheckUtils]: 25: Hoare triple {2155#true} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {2155#true} is VALID [2022-04-08 11:05:28,818 INFO L290 TraceCheckUtils]: 24: Hoare triple {2155#true} assume !!(~x~0 <= ~X~0); {2155#true} is VALID [2022-04-08 11:05:28,818 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {2155#true} {2155#true} #65#return; {2155#true} is VALID [2022-04-08 11:05:28,818 INFO L290 TraceCheckUtils]: 22: Hoare triple {2155#true} assume true; {2155#true} is VALID [2022-04-08 11:05:28,818 INFO L290 TraceCheckUtils]: 21: Hoare triple {2155#true} assume !(0 == ~cond); {2155#true} is VALID [2022-04-08 11:05:28,818 INFO L290 TraceCheckUtils]: 20: Hoare triple {2155#true} ~cond := #in~cond; {2155#true} is VALID [2022-04-08 11:05:28,819 INFO L272 TraceCheckUtils]: 19: Hoare triple {2155#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {2155#true} is VALID [2022-04-08 11:05:28,819 INFO L290 TraceCheckUtils]: 18: Hoare triple {2155#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {2155#true} is VALID [2022-04-08 11:05:28,819 INFO L290 TraceCheckUtils]: 17: Hoare triple {2155#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {2155#true} is VALID [2022-04-08 11:05:28,819 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {2155#true} {2155#true} #63#return; {2155#true} is VALID [2022-04-08 11:05:28,819 INFO L290 TraceCheckUtils]: 15: Hoare triple {2155#true} assume true; {2155#true} is VALID [2022-04-08 11:05:28,819 INFO L290 TraceCheckUtils]: 14: Hoare triple {2155#true} assume !(0 == ~cond); {2155#true} is VALID [2022-04-08 11:05:28,819 INFO L290 TraceCheckUtils]: 13: Hoare triple {2155#true} ~cond := #in~cond; {2155#true} is VALID [2022-04-08 11:05:28,819 INFO L272 TraceCheckUtils]: 12: Hoare triple {2155#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {2155#true} is VALID [2022-04-08 11:05:28,819 INFO L290 TraceCheckUtils]: 11: Hoare triple {2155#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {2155#true} is VALID [2022-04-08 11:05:28,819 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {2155#true} {2155#true} #61#return; {2155#true} is VALID [2022-04-08 11:05:28,819 INFO L290 TraceCheckUtils]: 9: Hoare triple {2155#true} assume true; {2155#true} is VALID [2022-04-08 11:05:28,819 INFO L290 TraceCheckUtils]: 8: Hoare triple {2155#true} assume !(0 == ~cond); {2155#true} is VALID [2022-04-08 11:05:28,820 INFO L290 TraceCheckUtils]: 7: Hoare triple {2155#true} ~cond := #in~cond; {2155#true} is VALID [2022-04-08 11:05:28,820 INFO L272 TraceCheckUtils]: 6: Hoare triple {2155#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {2155#true} is VALID [2022-04-08 11:05:28,820 INFO L290 TraceCheckUtils]: 5: Hoare triple {2155#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {2155#true} is VALID [2022-04-08 11:05:28,820 INFO L272 TraceCheckUtils]: 4: Hoare triple {2155#true} call #t~ret8 := main(); {2155#true} is VALID [2022-04-08 11:05:28,820 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2155#true} {2155#true} #69#return; {2155#true} is VALID [2022-04-08 11:05:28,820 INFO L290 TraceCheckUtils]: 2: Hoare triple {2155#true} assume true; {2155#true} is VALID [2022-04-08 11:05:28,820 INFO L290 TraceCheckUtils]: 1: Hoare triple {2155#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {2155#true} is VALID [2022-04-08 11:05:28,820 INFO L272 TraceCheckUtils]: 0: Hoare triple {2155#true} call ULTIMATE.init(); {2155#true} is VALID [2022-04-08 11:05:28,820 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-04-08 11:05:28,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:05:28,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590307637] [2022-04-08 11:05:28,821 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:05:28,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007061322] [2022-04-08 11:05:28,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007061322] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:05:28,821 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:05:28,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 18 [2022-04-08 11:05:28,821 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:05:28,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1681108672] [2022-04-08 11:05:28,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1681108672] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:05:28,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:05:28,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-08 11:05:28,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182635073] [2022-04-08 11:05:28,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:05:28,822 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2022-04-08 11:05:28,822 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:05:28,822 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:05:28,859 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:05:28,859 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-08 11:05:28,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:05:28,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-08 11:05:28,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-04-08 11:05:28,860 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:05:29,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:05:29,961 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2022-04-08 11:05:29,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-08 11:05:29,961 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2022-04-08 11:05:29,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:05:29,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:05:29,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 58 transitions. [2022-04-08 11:05:29,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:05:29,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 58 transitions. [2022-04-08 11:05:29,964 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 13 states and 58 transitions. [2022-04-08 11:05:30,036 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:05:30,037 INFO L225 Difference]: With dead ends: 61 [2022-04-08 11:05:30,037 INFO L226 Difference]: Without dead ends: 57 [2022-04-08 11:05:30,038 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2022-04-08 11:05:30,038 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 18 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-08 11:05:30,038 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 149 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-08 11:05:30,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-04-08 11:05:30,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2022-04-08 11:05:30,095 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:05:30,096 INFO L82 GeneralOperation]: Start isEquivalent. First operand 57 states. Second operand has 55 states, 38 states have (on average 1.131578947368421) internal successors, (43), 40 states have internal predecessors, (43), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-08 11:05:30,096 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand has 55 states, 38 states have (on average 1.131578947368421) internal successors, (43), 40 states have internal predecessors, (43), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-08 11:05:30,096 INFO L87 Difference]: Start difference. First operand 57 states. Second operand has 55 states, 38 states have (on average 1.131578947368421) internal successors, (43), 40 states have internal predecessors, (43), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-08 11:05:30,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:05:30,098 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2022-04-08 11:05:30,098 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2022-04-08 11:05:30,098 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:05:30,098 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:05:30,098 INFO L74 IsIncluded]: Start isIncluded. First operand has 55 states, 38 states have (on average 1.131578947368421) internal successors, (43), 40 states have internal predecessors, (43), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand 57 states. [2022-04-08 11:05:30,098 INFO L87 Difference]: Start difference. First operand has 55 states, 38 states have (on average 1.131578947368421) internal successors, (43), 40 states have internal predecessors, (43), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand 57 states. [2022-04-08 11:05:30,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:05:30,100 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2022-04-08 11:05:30,100 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2022-04-08 11:05:30,100 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:05:30,100 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:05:30,100 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:05:30,100 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:05:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 38 states have (on average 1.131578947368421) internal successors, (43), 40 states have internal predecessors, (43), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-08 11:05:30,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2022-04-08 11:05:30,102 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 41 [2022-04-08 11:05:30,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:05:30,102 INFO L478 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2022-04-08 11:05:30,102 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:05:30,102 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 55 states and 61 transitions. [2022-04-08 11:05:30,179 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:05:30,179 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2022-04-08 11:05:30,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-04-08 11:05:30,180 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:05:30,180 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:05:30,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-04-08 11:05:30,387 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:05:30,387 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:05:30,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:05:30,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1786011109, now seen corresponding path program 1 times [2022-04-08 11:05:30,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:05:30,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1640743468] [2022-04-08 11:05:30,389 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:05:30,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1786011109, now seen corresponding path program 2 times [2022-04-08 11:05:30,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:05:30,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849418684] [2022-04-08 11:05:30,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:05:30,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:05:30,400 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:05:30,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1902315005] [2022-04-08 11:05:30,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-08 11:05:30,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:05:30,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:05:30,401 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:05:30,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-08 11:05:30,443 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-08 11:05:30,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:05:30,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 34 conjunts are in the unsatisfiable core [2022-04-08 11:05:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:05:30,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:05:30,743 INFO L272 TraceCheckUtils]: 0: Hoare triple {2772#true} call ULTIMATE.init(); {2772#true} is VALID [2022-04-08 11:05:30,743 INFO L290 TraceCheckUtils]: 1: Hoare triple {2772#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {2772#true} is VALID [2022-04-08 11:05:30,743 INFO L290 TraceCheckUtils]: 2: Hoare triple {2772#true} assume true; {2772#true} is VALID [2022-04-08 11:05:30,744 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2772#true} {2772#true} #69#return; {2772#true} is VALID [2022-04-08 11:05:30,744 INFO L272 TraceCheckUtils]: 4: Hoare triple {2772#true} call #t~ret8 := main(); {2772#true} is VALID [2022-04-08 11:05:30,744 INFO L290 TraceCheckUtils]: 5: Hoare triple {2772#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {2772#true} is VALID [2022-04-08 11:05:30,744 INFO L272 TraceCheckUtils]: 6: Hoare triple {2772#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {2772#true} is VALID [2022-04-08 11:05:30,744 INFO L290 TraceCheckUtils]: 7: Hoare triple {2772#true} ~cond := #in~cond; {2772#true} is VALID [2022-04-08 11:05:30,744 INFO L290 TraceCheckUtils]: 8: Hoare triple {2772#true} assume !(0 == ~cond); {2772#true} is VALID [2022-04-08 11:05:30,744 INFO L290 TraceCheckUtils]: 9: Hoare triple {2772#true} assume true; {2772#true} is VALID [2022-04-08 11:05:30,744 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {2772#true} {2772#true} #61#return; {2772#true} is VALID [2022-04-08 11:05:30,744 INFO L290 TraceCheckUtils]: 11: Hoare triple {2772#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {2772#true} is VALID [2022-04-08 11:05:30,744 INFO L272 TraceCheckUtils]: 12: Hoare triple {2772#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {2772#true} is VALID [2022-04-08 11:05:30,744 INFO L290 TraceCheckUtils]: 13: Hoare triple {2772#true} ~cond := #in~cond; {2772#true} is VALID [2022-04-08 11:05:30,745 INFO L290 TraceCheckUtils]: 14: Hoare triple {2772#true} assume !(0 == ~cond); {2772#true} is VALID [2022-04-08 11:05:30,745 INFO L290 TraceCheckUtils]: 15: Hoare triple {2772#true} assume true; {2772#true} is VALID [2022-04-08 11:05:30,745 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {2772#true} {2772#true} #63#return; {2772#true} is VALID [2022-04-08 11:05:30,745 INFO L290 TraceCheckUtils]: 17: Hoare triple {2772#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {2828#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:05:30,746 INFO L290 TraceCheckUtils]: 18: Hoare triple {2828#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {2828#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:05:30,746 INFO L272 TraceCheckUtils]: 19: Hoare triple {2828#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {2772#true} is VALID [2022-04-08 11:05:30,746 INFO L290 TraceCheckUtils]: 20: Hoare triple {2772#true} ~cond := #in~cond; {2772#true} is VALID [2022-04-08 11:05:30,746 INFO L290 TraceCheckUtils]: 21: Hoare triple {2772#true} assume !(0 == ~cond); {2772#true} is VALID [2022-04-08 11:05:30,746 INFO L290 TraceCheckUtils]: 22: Hoare triple {2772#true} assume true; {2772#true} is VALID [2022-04-08 11:05:30,747 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {2772#true} {2828#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} #65#return; {2828#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:05:30,747 INFO L290 TraceCheckUtils]: 24: Hoare triple {2828#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} assume !!(~x~0 <= ~X~0); {2828#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:05:30,748 INFO L290 TraceCheckUtils]: 25: Hoare triple {2828#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {2853#(and (= main_~x~0 0) (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} is VALID [2022-04-08 11:05:30,749 INFO L290 TraceCheckUtils]: 26: Hoare triple {2853#(and (= main_~x~0 0) (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {2857#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~x~0 1) (= main_~y~0 0))} is VALID [2022-04-08 11:05:30,758 INFO L290 TraceCheckUtils]: 27: Hoare triple {2857#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~x~0 1) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {2861#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~x~0 1) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~y~0 0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} is VALID [2022-04-08 11:05:30,759 INFO L272 TraceCheckUtils]: 28: Hoare triple {2861#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~x~0 1) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~y~0 0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {2772#true} is VALID [2022-04-08 11:05:30,760 INFO L290 TraceCheckUtils]: 29: Hoare triple {2772#true} ~cond := #in~cond; {2868#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:05:30,765 INFO L290 TraceCheckUtils]: 30: Hoare triple {2868#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {2872#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:05:30,765 INFO L290 TraceCheckUtils]: 31: Hoare triple {2872#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {2872#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:05:30,766 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {2872#(not (= |__VERIFIER_assert_#in~cond| 0))} {2861#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~x~0 1) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~y~0 0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} #65#return; {2857#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~x~0 1) (= main_~y~0 0))} is VALID [2022-04-08 11:05:30,767 INFO L290 TraceCheckUtils]: 33: Hoare triple {2857#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~x~0 1) (= main_~y~0 0))} assume !!(~x~0 <= ~X~0); {2857#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~x~0 1) (= main_~y~0 0))} is VALID [2022-04-08 11:05:30,767 INFO L290 TraceCheckUtils]: 34: Hoare triple {2857#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~x~0 1) (= main_~y~0 0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {2885#(and (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 1) (= main_~x~0 1))} is VALID [2022-04-08 11:05:30,768 INFO L290 TraceCheckUtils]: 35: Hoare triple {2885#(and (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 1) (= main_~x~0 1))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {2889#(and (= (+ (- 1) main_~x~0) 1) (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 1))} is VALID [2022-04-08 11:05:30,768 INFO L290 TraceCheckUtils]: 36: Hoare triple {2889#(and (= (+ (- 1) main_~x~0) 1) (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 1))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {2893#(and (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= (* main_~Y~0 2) main_~yx~0) (= main_~X~0 main_~xy~0))} is VALID [2022-04-08 11:05:30,769 INFO L272 TraceCheckUtils]: 37: Hoare triple {2893#(and (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= (* main_~Y~0 2) main_~yx~0) (= main_~X~0 main_~xy~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {2897#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:05:30,770 INFO L290 TraceCheckUtils]: 38: Hoare triple {2897#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {2901#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:05:30,770 INFO L290 TraceCheckUtils]: 39: Hoare triple {2901#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {2773#false} is VALID [2022-04-08 11:05:30,770 INFO L290 TraceCheckUtils]: 40: Hoare triple {2773#false} assume !false; {2773#false} is VALID [2022-04-08 11:05:30,770 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-04-08 11:05:30,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:05:34,180 INFO L290 TraceCheckUtils]: 40: Hoare triple {2773#false} assume !false; {2773#false} is VALID [2022-04-08 11:05:34,181 INFO L290 TraceCheckUtils]: 39: Hoare triple {2901#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {2773#false} is VALID [2022-04-08 11:05:34,181 INFO L290 TraceCheckUtils]: 38: Hoare triple {2897#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {2901#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:05:34,182 INFO L272 TraceCheckUtils]: 37: Hoare triple {2917#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {2897#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:05:34,183 INFO L290 TraceCheckUtils]: 36: Hoare triple {2921#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {2917#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} is VALID [2022-04-08 11:05:34,184 INFO L290 TraceCheckUtils]: 35: Hoare triple {2925#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {2921#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:05:34,185 INFO L290 TraceCheckUtils]: 34: Hoare triple {2921#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {2925#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} is VALID [2022-04-08 11:05:34,186 INFO L290 TraceCheckUtils]: 33: Hoare triple {2921#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !!(~x~0 <= ~X~0); {2921#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:05:34,187 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {2872#(not (= |__VERIFIER_assert_#in~cond| 0))} {2935#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} #65#return; {2921#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:05:34,187 INFO L290 TraceCheckUtils]: 31: Hoare triple {2872#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {2872#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:05:34,187 INFO L290 TraceCheckUtils]: 30: Hoare triple {2945#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} assume !(0 == ~cond); {2872#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:05:34,187 INFO L290 TraceCheckUtils]: 29: Hoare triple {2772#true} ~cond := #in~cond; {2945#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 11:05:34,188 INFO L272 TraceCheckUtils]: 28: Hoare triple {2935#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {2772#true} is VALID [2022-04-08 11:05:34,188 INFO L290 TraceCheckUtils]: 27: Hoare triple {2772#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {2935#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} is VALID [2022-04-08 11:05:34,188 INFO L290 TraceCheckUtils]: 26: Hoare triple {2772#true} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {2772#true} is VALID [2022-04-08 11:05:34,188 INFO L290 TraceCheckUtils]: 25: Hoare triple {2772#true} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {2772#true} is VALID [2022-04-08 11:05:34,188 INFO L290 TraceCheckUtils]: 24: Hoare triple {2772#true} assume !!(~x~0 <= ~X~0); {2772#true} is VALID [2022-04-08 11:05:34,189 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {2772#true} {2772#true} #65#return; {2772#true} is VALID [2022-04-08 11:05:34,189 INFO L290 TraceCheckUtils]: 22: Hoare triple {2772#true} assume true; {2772#true} is VALID [2022-04-08 11:05:34,189 INFO L290 TraceCheckUtils]: 21: Hoare triple {2772#true} assume !(0 == ~cond); {2772#true} is VALID [2022-04-08 11:05:34,189 INFO L290 TraceCheckUtils]: 20: Hoare triple {2772#true} ~cond := #in~cond; {2772#true} is VALID [2022-04-08 11:05:34,189 INFO L272 TraceCheckUtils]: 19: Hoare triple {2772#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {2772#true} is VALID [2022-04-08 11:05:34,189 INFO L290 TraceCheckUtils]: 18: Hoare triple {2772#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {2772#true} is VALID [2022-04-08 11:05:34,189 INFO L290 TraceCheckUtils]: 17: Hoare triple {2772#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {2772#true} is VALID [2022-04-08 11:05:34,189 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {2772#true} {2772#true} #63#return; {2772#true} is VALID [2022-04-08 11:05:34,189 INFO L290 TraceCheckUtils]: 15: Hoare triple {2772#true} assume true; {2772#true} is VALID [2022-04-08 11:05:34,189 INFO L290 TraceCheckUtils]: 14: Hoare triple {2772#true} assume !(0 == ~cond); {2772#true} is VALID [2022-04-08 11:05:34,189 INFO L290 TraceCheckUtils]: 13: Hoare triple {2772#true} ~cond := #in~cond; {2772#true} is VALID [2022-04-08 11:05:34,189 INFO L272 TraceCheckUtils]: 12: Hoare triple {2772#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {2772#true} is VALID [2022-04-08 11:05:34,189 INFO L290 TraceCheckUtils]: 11: Hoare triple {2772#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {2772#true} is VALID [2022-04-08 11:05:34,190 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {2772#true} {2772#true} #61#return; {2772#true} is VALID [2022-04-08 11:05:34,190 INFO L290 TraceCheckUtils]: 9: Hoare triple {2772#true} assume true; {2772#true} is VALID [2022-04-08 11:05:34,190 INFO L290 TraceCheckUtils]: 8: Hoare triple {2772#true} assume !(0 == ~cond); {2772#true} is VALID [2022-04-08 11:05:34,190 INFO L290 TraceCheckUtils]: 7: Hoare triple {2772#true} ~cond := #in~cond; {2772#true} is VALID [2022-04-08 11:05:34,190 INFO L272 TraceCheckUtils]: 6: Hoare triple {2772#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {2772#true} is VALID [2022-04-08 11:05:34,190 INFO L290 TraceCheckUtils]: 5: Hoare triple {2772#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {2772#true} is VALID [2022-04-08 11:05:34,190 INFO L272 TraceCheckUtils]: 4: Hoare triple {2772#true} call #t~ret8 := main(); {2772#true} is VALID [2022-04-08 11:05:34,190 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2772#true} {2772#true} #69#return; {2772#true} is VALID [2022-04-08 11:05:34,190 INFO L290 TraceCheckUtils]: 2: Hoare triple {2772#true} assume true; {2772#true} is VALID [2022-04-08 11:05:34,190 INFO L290 TraceCheckUtils]: 1: Hoare triple {2772#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {2772#true} is VALID [2022-04-08 11:05:34,190 INFO L272 TraceCheckUtils]: 0: Hoare triple {2772#true} call ULTIMATE.init(); {2772#true} is VALID [2022-04-08 11:05:34,190 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-04-08 11:05:34,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:05:34,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849418684] [2022-04-08 11:05:34,191 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:05:34,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902315005] [2022-04-08 11:05:34,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902315005] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:05:34,191 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:05:34,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 18 [2022-04-08 11:05:34,191 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:05:34,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1640743468] [2022-04-08 11:05:34,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1640743468] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:05:34,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:05:34,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-08 11:05:34,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766853383] [2022-04-08 11:05:34,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:05:34,192 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2022-04-08 11:05:34,192 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:05:34,192 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 13 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:05:34,221 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:05:34,221 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-08 11:05:34,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:05:34,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-08 11:05:34,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2022-04-08 11:05:34,222 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand has 13 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:05:34,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:05:34,968 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2022-04-08 11:05:34,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-08 11:05:34,968 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2022-04-08 11:05:34,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:05:34,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:05:34,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 58 transitions. [2022-04-08 11:05:34,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:05:34,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 58 transitions. [2022-04-08 11:05:34,971 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 13 states and 58 transitions. [2022-04-08 11:05:35,013 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:05:35,015 INFO L225 Difference]: With dead ends: 72 [2022-04-08 11:05:35,015 INFO L226 Difference]: Without dead ends: 70 [2022-04-08 11:05:35,015 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 62 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2022-04-08 11:05:35,015 INFO L913 BasicCegarLoop]: 23 mSDtfsCounter, 16 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-08 11:05:35,016 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 186 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-08 11:05:35,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-04-08 11:05:35,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 59. [2022-04-08 11:05:35,073 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:05:35,073 INFO L82 GeneralOperation]: Start isEquivalent. First operand 70 states. Second operand has 59 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 43 states have internal predecessors, (46), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-08 11:05:35,074 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand has 59 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 43 states have internal predecessors, (46), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-08 11:05:35,074 INFO L87 Difference]: Start difference. First operand 70 states. Second operand has 59 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 43 states have internal predecessors, (46), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-08 11:05:35,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:05:35,076 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2022-04-08 11:05:35,076 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2022-04-08 11:05:35,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:05:35,076 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:05:35,076 INFO L74 IsIncluded]: Start isIncluded. First operand has 59 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 43 states have internal predecessors, (46), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand 70 states. [2022-04-08 11:05:35,076 INFO L87 Difference]: Start difference. First operand has 59 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 43 states have internal predecessors, (46), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand 70 states. [2022-04-08 11:05:35,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:05:35,078 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2022-04-08 11:05:35,078 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2022-04-08 11:05:35,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:05:35,078 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:05:35,078 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:05:35,078 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:05:35,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 43 states have internal predecessors, (46), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-08 11:05:35,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2022-04-08 11:05:35,080 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 41 [2022-04-08 11:05:35,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:05:35,080 INFO L478 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2022-04-08 11:05:35,080 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:05:35,080 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 59 states and 64 transitions. [2022-04-08 11:05:35,178 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:05:35,178 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2022-04-08 11:05:35,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-04-08 11:05:35,179 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:05:35,179 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:05:35,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-04-08 11:05:35,389 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:05:35,389 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:05:35,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:05:35,389 INFO L85 PathProgramCache]: Analyzing trace with hash -287119529, now seen corresponding path program 3 times [2022-04-08 11:05:35,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:05:35,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2015423725] [2022-04-08 11:05:35,390 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:05:35,390 INFO L85 PathProgramCache]: Analyzing trace with hash -287119529, now seen corresponding path program 4 times [2022-04-08 11:05:35,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:05:35,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876671071] [2022-04-08 11:05:35,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:05:35,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:05:35,399 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:05:35,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [812859978] [2022-04-08 11:05:35,399 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-08 11:05:35,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:05:35,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:05:35,400 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:05:35,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-04-08 11:05:35,446 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-08 11:05:35,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:05:35,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 34 conjunts are in the unsatisfiable core [2022-04-08 11:05:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:05:35,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:05:49,633 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:05:54,865 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:05:57,297 INFO L272 TraceCheckUtils]: 0: Hoare triple {3443#true} call ULTIMATE.init(); {3443#true} is VALID [2022-04-08 11:05:57,297 INFO L290 TraceCheckUtils]: 1: Hoare triple {3443#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {3443#true} is VALID [2022-04-08 11:05:57,297 INFO L290 TraceCheckUtils]: 2: Hoare triple {3443#true} assume true; {3443#true} is VALID [2022-04-08 11:05:57,297 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {3443#true} {3443#true} #69#return; {3443#true} is VALID [2022-04-08 11:05:57,297 INFO L272 TraceCheckUtils]: 4: Hoare triple {3443#true} call #t~ret8 := main(); {3443#true} is VALID [2022-04-08 11:05:57,297 INFO L290 TraceCheckUtils]: 5: Hoare triple {3443#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {3443#true} is VALID [2022-04-08 11:05:57,298 INFO L272 TraceCheckUtils]: 6: Hoare triple {3443#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {3443#true} is VALID [2022-04-08 11:05:57,298 INFO L290 TraceCheckUtils]: 7: Hoare triple {3443#true} ~cond := #in~cond; {3443#true} is VALID [2022-04-08 11:05:57,298 INFO L290 TraceCheckUtils]: 8: Hoare triple {3443#true} assume !(0 == ~cond); {3443#true} is VALID [2022-04-08 11:05:57,298 INFO L290 TraceCheckUtils]: 9: Hoare triple {3443#true} assume true; {3443#true} is VALID [2022-04-08 11:05:57,298 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {3443#true} {3443#true} #61#return; {3443#true} is VALID [2022-04-08 11:05:57,298 INFO L290 TraceCheckUtils]: 11: Hoare triple {3443#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {3443#true} is VALID [2022-04-08 11:05:57,298 INFO L272 TraceCheckUtils]: 12: Hoare triple {3443#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {3443#true} is VALID [2022-04-08 11:05:57,298 INFO L290 TraceCheckUtils]: 13: Hoare triple {3443#true} ~cond := #in~cond; {3443#true} is VALID [2022-04-08 11:05:57,298 INFO L290 TraceCheckUtils]: 14: Hoare triple {3443#true} assume !(0 == ~cond); {3443#true} is VALID [2022-04-08 11:05:57,298 INFO L290 TraceCheckUtils]: 15: Hoare triple {3443#true} assume true; {3443#true} is VALID [2022-04-08 11:05:57,298 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {3443#true} {3443#true} #63#return; {3443#true} is VALID [2022-04-08 11:05:57,299 INFO L290 TraceCheckUtils]: 17: Hoare triple {3443#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {3499#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} is VALID [2022-04-08 11:05:57,299 INFO L290 TraceCheckUtils]: 18: Hoare triple {3499#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {3499#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} is VALID [2022-04-08 11:05:57,299 INFO L272 TraceCheckUtils]: 19: Hoare triple {3499#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {3443#true} is VALID [2022-04-08 11:05:57,299 INFO L290 TraceCheckUtils]: 20: Hoare triple {3443#true} ~cond := #in~cond; {3509#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:05:57,300 INFO L290 TraceCheckUtils]: 21: Hoare triple {3509#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {3513#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:05:57,300 INFO L290 TraceCheckUtils]: 22: Hoare triple {3513#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {3513#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:05:57,301 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {3513#(not (= |__VERIFIER_assert_#in~cond| 0))} {3499#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} #65#return; {3499#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} is VALID [2022-04-08 11:05:57,301 INFO L290 TraceCheckUtils]: 24: Hoare triple {3499#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} assume !!(~x~0 <= ~X~0); {3499#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} is VALID [2022-04-08 11:05:57,302 INFO L290 TraceCheckUtils]: 25: Hoare triple {3499#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {3526#(and (= main_~x~0 0) (not (< (* main_~Y~0 2) main_~X~0)) (<= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3))))} is VALID [2022-04-08 11:05:57,302 INFO L290 TraceCheckUtils]: 26: Hoare triple {3526#(and (= main_~x~0 0) (not (< (* main_~Y~0 2) main_~X~0)) (<= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {3530#(and (= (+ (- 1) main_~x~0) 0) (not (< (* main_~Y~0 2) main_~X~0)) (<= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3))))} is VALID [2022-04-08 11:05:57,303 INFO L290 TraceCheckUtils]: 27: Hoare triple {3530#(and (= (+ (- 1) main_~x~0) 0) (not (< (* main_~Y~0 2) main_~X~0)) (<= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {3534#(and (= (+ (- 1) main_~x~0) 0) (not (< (* main_~Y~0 2) main_~X~0)) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)) (<= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3))))} is VALID [2022-04-08 11:05:57,303 INFO L272 TraceCheckUtils]: 28: Hoare triple {3534#(and (= (+ (- 1) main_~x~0) 0) (not (< (* main_~Y~0 2) main_~X~0)) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)) (<= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {3443#true} is VALID [2022-04-08 11:05:57,303 INFO L290 TraceCheckUtils]: 29: Hoare triple {3443#true} ~cond := #in~cond; {3509#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:05:57,303 INFO L290 TraceCheckUtils]: 30: Hoare triple {3509#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {3513#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:05:57,304 INFO L290 TraceCheckUtils]: 31: Hoare triple {3513#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {3513#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:05:57,305 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {3513#(not (= |__VERIFIER_assert_#in~cond| 0))} {3534#(and (= (+ (- 1) main_~x~0) 0) (not (< (* main_~Y~0 2) main_~X~0)) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)) (<= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3))))} #65#return; {3550#(and (= (+ (- 1) main_~x~0) 0) (not (< (* main_~Y~0 2) main_~X~0)) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (<= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3))))} is VALID [2022-04-08 11:05:57,305 INFO L290 TraceCheckUtils]: 33: Hoare triple {3550#(and (= (+ (- 1) main_~x~0) 0) (not (< (* main_~Y~0 2) main_~X~0)) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (<= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3))))} assume !!(~x~0 <= ~X~0); {3550#(and (= (+ (- 1) main_~x~0) 0) (not (< (* main_~Y~0 2) main_~X~0)) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (<= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3))))} is VALID [2022-04-08 11:05:57,306 INFO L290 TraceCheckUtils]: 34: Hoare triple {3550#(and (= (+ (- 1) main_~x~0) 0) (not (< (* main_~Y~0 2) main_~X~0)) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (<= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3))))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {3557#(and (= (+ (- 1) main_~x~0) 0) (= main_~v~0 (+ (* main_~Y~0 main_~x~0 2) (* (- 1) main_~X~0) (* (- 2) main_~X~0 main_~y~0) (* main_~Y~0 4))) (not (< (* main_~Y~0 2) main_~X~0)) (< (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0)) (<= (+ (* (* main_~X~0 main_~y~0) 2) (* main_~Y~0 2)) (+ (* main_~X~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} is VALID [2022-04-08 11:05:57,307 INFO L290 TraceCheckUtils]: 35: Hoare triple {3557#(and (= (+ (- 1) main_~x~0) 0) (= main_~v~0 (+ (* main_~Y~0 main_~x~0 2) (* (- 1) main_~X~0) (* (- 2) main_~X~0 main_~y~0) (* main_~Y~0 4))) (not (< (* main_~Y~0 2) main_~X~0)) (< (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0)) (<= (+ (* (* main_~X~0 main_~y~0) 2) (* main_~Y~0 2)) (+ (* main_~X~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {3561#(and (not (< (* main_~Y~0 2) main_~X~0)) (<= (* (* main_~X~0 main_~y~0) 2) (* main_~X~0 2)) (< (* main_~Y~0 4) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0)) (= main_~x~0 2) (= main_~v~0 (+ (* (- 1) main_~X~0) (* (- 2) main_~X~0 main_~y~0) (* main_~Y~0 6))))} is VALID [2022-04-08 11:05:57,309 INFO L290 TraceCheckUtils]: 36: Hoare triple {3561#(and (not (< (* main_~Y~0 2) main_~X~0)) (<= (* (* main_~X~0 main_~y~0) 2) (* main_~X~0 2)) (< (* main_~Y~0 4) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0)) (= main_~x~0 2) (= main_~v~0 (+ (* (- 1) main_~X~0) (* (- 2) main_~X~0 main_~y~0) (* main_~Y~0 6))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {3565#(and (not (< (* main_~Y~0 2) main_~X~0)) (= (* main_~Y~0 2) main_~yx~0) (< (* main_~Y~0 4) (+ main_~X~0 (* (* (div main_~xy~0 main_~X~0) main_~X~0) 2))) (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 6) (* (- 2) (div main_~xy~0 main_~X~0) main_~X~0))) (<= (* (* (div main_~xy~0 main_~X~0) main_~X~0) 2) (* main_~X~0 2)) (= (mod main_~xy~0 main_~X~0) 0))} is VALID [2022-04-08 11:05:57,310 INFO L272 TraceCheckUtils]: 37: Hoare triple {3565#(and (not (< (* main_~Y~0 2) main_~X~0)) (= (* main_~Y~0 2) main_~yx~0) (< (* main_~Y~0 4) (+ main_~X~0 (* (* (div main_~xy~0 main_~X~0) main_~X~0) 2))) (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 6) (* (- 2) (div main_~xy~0 main_~X~0) main_~X~0))) (<= (* (* (div main_~xy~0 main_~X~0) main_~X~0) 2) (* main_~X~0 2)) (= (mod main_~xy~0 main_~X~0) 0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {3569#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:05:57,310 INFO L290 TraceCheckUtils]: 38: Hoare triple {3569#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {3573#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:05:57,311 INFO L290 TraceCheckUtils]: 39: Hoare triple {3573#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {3444#false} is VALID [2022-04-08 11:05:57,311 INFO L290 TraceCheckUtils]: 40: Hoare triple {3444#false} assume !false; {3444#false} is VALID [2022-04-08 11:05:57,311 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-04-08 11:05:57,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:06:01,962 INFO L290 TraceCheckUtils]: 40: Hoare triple {3444#false} assume !false; {3444#false} is VALID [2022-04-08 11:06:01,963 INFO L290 TraceCheckUtils]: 39: Hoare triple {3573#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {3444#false} is VALID [2022-04-08 11:06:01,963 INFO L290 TraceCheckUtils]: 38: Hoare triple {3569#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {3573#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:06:01,964 INFO L272 TraceCheckUtils]: 37: Hoare triple {3589#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {3569#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:06:01,965 INFO L290 TraceCheckUtils]: 36: Hoare triple {3593#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {3589#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} is VALID [2022-04-08 11:06:01,966 INFO L290 TraceCheckUtils]: 35: Hoare triple {3597#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {3593#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:06:01,967 INFO L290 TraceCheckUtils]: 34: Hoare triple {3601#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {3597#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} is VALID [2022-04-08 11:06:01,967 INFO L290 TraceCheckUtils]: 33: Hoare triple {3601#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} assume !!(~x~0 <= ~X~0); {3601#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} is VALID [2022-04-08 11:06:01,968 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {3513#(not (= |__VERIFIER_assert_#in~cond| 0))} {3608#(or (not (< main_~v~0 0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} #65#return; {3601#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} is VALID [2022-04-08 11:06:01,968 INFO L290 TraceCheckUtils]: 31: Hoare triple {3513#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {3513#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:06:01,969 INFO L290 TraceCheckUtils]: 30: Hoare triple {3618#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} assume !(0 == ~cond); {3513#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:06:01,969 INFO L290 TraceCheckUtils]: 29: Hoare triple {3443#true} ~cond := #in~cond; {3618#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 11:06:01,969 INFO L272 TraceCheckUtils]: 28: Hoare triple {3608#(or (not (< main_~v~0 0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {3443#true} is VALID [2022-04-08 11:06:01,970 INFO L290 TraceCheckUtils]: 27: Hoare triple {3443#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {3608#(or (not (< main_~v~0 0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} is VALID [2022-04-08 11:06:01,970 INFO L290 TraceCheckUtils]: 26: Hoare triple {3443#true} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {3443#true} is VALID [2022-04-08 11:06:01,970 INFO L290 TraceCheckUtils]: 25: Hoare triple {3443#true} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {3443#true} is VALID [2022-04-08 11:06:01,970 INFO L290 TraceCheckUtils]: 24: Hoare triple {3443#true} assume !!(~x~0 <= ~X~0); {3443#true} is VALID [2022-04-08 11:06:01,970 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {3443#true} {3443#true} #65#return; {3443#true} is VALID [2022-04-08 11:06:01,970 INFO L290 TraceCheckUtils]: 22: Hoare triple {3443#true} assume true; {3443#true} is VALID [2022-04-08 11:06:01,970 INFO L290 TraceCheckUtils]: 21: Hoare triple {3443#true} assume !(0 == ~cond); {3443#true} is VALID [2022-04-08 11:06:01,970 INFO L290 TraceCheckUtils]: 20: Hoare triple {3443#true} ~cond := #in~cond; {3443#true} is VALID [2022-04-08 11:06:01,970 INFO L272 TraceCheckUtils]: 19: Hoare triple {3443#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {3443#true} is VALID [2022-04-08 11:06:01,970 INFO L290 TraceCheckUtils]: 18: Hoare triple {3443#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {3443#true} is VALID [2022-04-08 11:06:01,971 INFO L290 TraceCheckUtils]: 17: Hoare triple {3443#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {3443#true} is VALID [2022-04-08 11:06:01,971 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {3443#true} {3443#true} #63#return; {3443#true} is VALID [2022-04-08 11:06:01,971 INFO L290 TraceCheckUtils]: 15: Hoare triple {3443#true} assume true; {3443#true} is VALID [2022-04-08 11:06:01,971 INFO L290 TraceCheckUtils]: 14: Hoare triple {3443#true} assume !(0 == ~cond); {3443#true} is VALID [2022-04-08 11:06:01,971 INFO L290 TraceCheckUtils]: 13: Hoare triple {3443#true} ~cond := #in~cond; {3443#true} is VALID [2022-04-08 11:06:01,971 INFO L272 TraceCheckUtils]: 12: Hoare triple {3443#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {3443#true} is VALID [2022-04-08 11:06:01,971 INFO L290 TraceCheckUtils]: 11: Hoare triple {3443#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {3443#true} is VALID [2022-04-08 11:06:01,971 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {3443#true} {3443#true} #61#return; {3443#true} is VALID [2022-04-08 11:06:01,971 INFO L290 TraceCheckUtils]: 9: Hoare triple {3443#true} assume true; {3443#true} is VALID [2022-04-08 11:06:01,971 INFO L290 TraceCheckUtils]: 8: Hoare triple {3443#true} assume !(0 == ~cond); {3443#true} is VALID [2022-04-08 11:06:01,971 INFO L290 TraceCheckUtils]: 7: Hoare triple {3443#true} ~cond := #in~cond; {3443#true} is VALID [2022-04-08 11:06:01,973 INFO L272 TraceCheckUtils]: 6: Hoare triple {3443#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {3443#true} is VALID [2022-04-08 11:06:01,973 INFO L290 TraceCheckUtils]: 5: Hoare triple {3443#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {3443#true} is VALID [2022-04-08 11:06:01,973 INFO L272 TraceCheckUtils]: 4: Hoare triple {3443#true} call #t~ret8 := main(); {3443#true} is VALID [2022-04-08 11:06:01,973 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {3443#true} {3443#true} #69#return; {3443#true} is VALID [2022-04-08 11:06:01,973 INFO L290 TraceCheckUtils]: 2: Hoare triple {3443#true} assume true; {3443#true} is VALID [2022-04-08 11:06:01,973 INFO L290 TraceCheckUtils]: 1: Hoare triple {3443#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {3443#true} is VALID [2022-04-08 11:06:01,973 INFO L272 TraceCheckUtils]: 0: Hoare triple {3443#true} call ULTIMATE.init(); {3443#true} is VALID [2022-04-08 11:06:01,973 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-04-08 11:06:01,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:06:01,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876671071] [2022-04-08 11:06:01,974 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:06:01,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812859978] [2022-04-08 11:06:01,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812859978] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:06:01,974 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:06:01,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 20 [2022-04-08 11:06:01,974 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:06:01,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2015423725] [2022-04-08 11:06:01,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2015423725] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:06:01,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:06:01,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-08 11:06:01,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279538404] [2022-04-08 11:06:01,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:06:01,975 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 13 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2022-04-08 11:06:01,975 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:06:01,975 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 14 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 13 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:06:02,003 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:06:02,004 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-08 11:06:02,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:06:02,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-08 11:06:02,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=319, Unknown=1, NotChecked=0, Total=380 [2022-04-08 11:06:02,004 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand has 14 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 13 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:06:04,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-08 11:06:06,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-08 11:06:10,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-08 11:06:12,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-08 11:06:13,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:06:13,232 INFO L93 Difference]: Finished difference Result 86 states and 98 transitions. [2022-04-08 11:06:13,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-08 11:06:13,232 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 13 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2022-04-08 11:06:13,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:06:13,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 13 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:06:13,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 70 transitions. [2022-04-08 11:06:13,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 13 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:06:13,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 70 transitions. [2022-04-08 11:06:13,235 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 14 states and 70 transitions. [2022-04-08 11:06:13,290 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:06:13,292 INFO L225 Difference]: With dead ends: 86 [2022-04-08 11:06:13,292 INFO L226 Difference]: Without dead ends: 73 [2022-04-08 11:06:13,292 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=98, Invalid=501, Unknown=1, NotChecked=0, Total=600 [2022-04-08 11:06:13,293 INFO L913 BasicCegarLoop]: 26 mSDtfsCounter, 15 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-04-08 11:06:13,293 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 184 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 297 Invalid, 4 Unknown, 0 Unchecked, 8.4s Time] [2022-04-08 11:06:13,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-04-08 11:06:13,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-04-08 11:06:13,387 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:06:13,416 INFO L82 GeneralOperation]: Start isEquivalent. First operand 73 states. Second operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-08 11:06:13,417 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-08 11:06:13,417 INFO L87 Difference]: Start difference. First operand 73 states. Second operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-08 11:06:13,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:06:13,419 INFO L93 Difference]: Finished difference Result 73 states and 80 transitions. [2022-04-08 11:06:13,419 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2022-04-08 11:06:13,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:06:13,419 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:06:13,420 INFO L74 IsIncluded]: Start isIncluded. First operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand 73 states. [2022-04-08 11:06:13,421 INFO L87 Difference]: Start difference. First operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand 73 states. [2022-04-08 11:06:13,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:06:13,423 INFO L93 Difference]: Finished difference Result 73 states and 80 transitions. [2022-04-08 11:06:13,423 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2022-04-08 11:06:13,423 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:06:13,423 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:06:13,423 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:06:13,424 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:06:13,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-08 11:06:13,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2022-04-08 11:06:13,431 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 41 [2022-04-08 11:06:13,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:06:13,431 INFO L478 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2022-04-08 11:06:13,432 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 13 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:06:13,432 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 73 states and 80 transitions. [2022-04-08 11:06:13,577 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 80 edges. 80 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:06:13,577 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2022-04-08 11:06:13,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-04-08 11:06:13,578 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:06:13,578 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:06:13,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-04-08 11:06:13,779 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:06:13,779 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:06:13,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:06:13,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1487887833, now seen corresponding path program 3 times [2022-04-08 11:06:13,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:06:13,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [523964526] [2022-04-08 11:06:13,780 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:06:13,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1487887833, now seen corresponding path program 4 times [2022-04-08 11:06:13,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:06:13,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648329049] [2022-04-08 11:06:13,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:06:13,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:06:13,790 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:06:13,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [45747697] [2022-04-08 11:06:13,790 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-08 11:06:13,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:06:13,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:06:13,791 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:06:13,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-04-08 11:06:13,839 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-08 11:06:13,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:06:13,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 27 conjunts are in the unsatisfiable core [2022-04-08 11:06:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:06:13,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:06:14,154 INFO L272 TraceCheckUtils]: 0: Hoare triple {4182#true} call ULTIMATE.init(); {4182#true} is VALID [2022-04-08 11:06:14,154 INFO L290 TraceCheckUtils]: 1: Hoare triple {4182#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {4182#true} is VALID [2022-04-08 11:06:14,155 INFO L290 TraceCheckUtils]: 2: Hoare triple {4182#true} assume true; {4182#true} is VALID [2022-04-08 11:06:14,155 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {4182#true} {4182#true} #69#return; {4182#true} is VALID [2022-04-08 11:06:14,155 INFO L272 TraceCheckUtils]: 4: Hoare triple {4182#true} call #t~ret8 := main(); {4182#true} is VALID [2022-04-08 11:06:14,155 INFO L290 TraceCheckUtils]: 5: Hoare triple {4182#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {4182#true} is VALID [2022-04-08 11:06:14,155 INFO L272 TraceCheckUtils]: 6: Hoare triple {4182#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {4182#true} is VALID [2022-04-08 11:06:14,155 INFO L290 TraceCheckUtils]: 7: Hoare triple {4182#true} ~cond := #in~cond; {4182#true} is VALID [2022-04-08 11:06:14,155 INFO L290 TraceCheckUtils]: 8: Hoare triple {4182#true} assume !(0 == ~cond); {4182#true} is VALID [2022-04-08 11:06:14,155 INFO L290 TraceCheckUtils]: 9: Hoare triple {4182#true} assume true; {4182#true} is VALID [2022-04-08 11:06:14,155 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {4182#true} {4182#true} #61#return; {4182#true} is VALID [2022-04-08 11:06:14,155 INFO L290 TraceCheckUtils]: 11: Hoare triple {4182#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {4182#true} is VALID [2022-04-08 11:06:14,155 INFO L272 TraceCheckUtils]: 12: Hoare triple {4182#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {4182#true} is VALID [2022-04-08 11:06:14,155 INFO L290 TraceCheckUtils]: 13: Hoare triple {4182#true} ~cond := #in~cond; {4182#true} is VALID [2022-04-08 11:06:14,156 INFO L290 TraceCheckUtils]: 14: Hoare triple {4182#true} assume !(0 == ~cond); {4182#true} is VALID [2022-04-08 11:06:14,156 INFO L290 TraceCheckUtils]: 15: Hoare triple {4182#true} assume true; {4182#true} is VALID [2022-04-08 11:06:14,156 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {4182#true} {4182#true} #63#return; {4182#true} is VALID [2022-04-08 11:06:14,156 INFO L290 TraceCheckUtils]: 17: Hoare triple {4182#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {4238#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:06:14,156 INFO L290 TraceCheckUtils]: 18: Hoare triple {4238#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {4238#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:06:14,157 INFO L272 TraceCheckUtils]: 19: Hoare triple {4238#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {4182#true} is VALID [2022-04-08 11:06:14,157 INFO L290 TraceCheckUtils]: 20: Hoare triple {4182#true} ~cond := #in~cond; {4182#true} is VALID [2022-04-08 11:06:14,157 INFO L290 TraceCheckUtils]: 21: Hoare triple {4182#true} assume !(0 == ~cond); {4182#true} is VALID [2022-04-08 11:06:14,157 INFO L290 TraceCheckUtils]: 22: Hoare triple {4182#true} assume true; {4182#true} is VALID [2022-04-08 11:06:14,157 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {4182#true} {4238#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} #65#return; {4238#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:06:14,158 INFO L290 TraceCheckUtils]: 24: Hoare triple {4238#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} assume !!(~x~0 <= ~X~0); {4238#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:06:14,158 INFO L290 TraceCheckUtils]: 25: Hoare triple {4238#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {4263#(and (= main_~x~0 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} is VALID [2022-04-08 11:06:14,159 INFO L290 TraceCheckUtils]: 26: Hoare triple {4263#(and (= main_~x~0 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {4267#(and (= (+ (- 1) main_~x~0) 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} is VALID [2022-04-08 11:06:14,159 INFO L290 TraceCheckUtils]: 27: Hoare triple {4267#(and (= (+ (- 1) main_~x~0) 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {4267#(and (= (+ (- 1) main_~x~0) 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} is VALID [2022-04-08 11:06:14,159 INFO L272 TraceCheckUtils]: 28: Hoare triple {4267#(and (= (+ (- 1) main_~x~0) 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {4182#true} is VALID [2022-04-08 11:06:14,159 INFO L290 TraceCheckUtils]: 29: Hoare triple {4182#true} ~cond := #in~cond; {4182#true} is VALID [2022-04-08 11:06:14,160 INFO L290 TraceCheckUtils]: 30: Hoare triple {4182#true} assume !(0 == ~cond); {4182#true} is VALID [2022-04-08 11:06:14,160 INFO L290 TraceCheckUtils]: 31: Hoare triple {4182#true} assume true; {4182#true} is VALID [2022-04-08 11:06:14,160 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {4182#true} {4267#(and (= (+ (- 1) main_~x~0) 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} #65#return; {4267#(and (= (+ (- 1) main_~x~0) 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} is VALID [2022-04-08 11:06:14,161 INFO L290 TraceCheckUtils]: 33: Hoare triple {4267#(and (= (+ (- 1) main_~x~0) 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} assume !!(~x~0 <= ~X~0); {4289#(and (= (+ (- 1) main_~x~0) 0) (<= main_~x~0 main_~X~0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} is VALID [2022-04-08 11:06:14,161 INFO L290 TraceCheckUtils]: 34: Hoare triple {4289#(and (= (+ (- 1) main_~x~0) 0) (<= main_~x~0 main_~X~0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {4293#(and (= (+ (- 1) main_~x~0) 0) (<= main_~x~0 main_~X~0) (= (+ (- 2) main_~y~0) 0) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} is VALID [2022-04-08 11:06:14,163 INFO L290 TraceCheckUtils]: 35: Hoare triple {4293#(and (= (+ (- 1) main_~x~0) 0) (<= main_~x~0 main_~X~0) (= (+ (- 2) main_~y~0) 0) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {4297#(and (= (+ (- 2) main_~x~0) 0) (= (+ (- 2) main_~y~0) 0) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))) (<= main_~x~0 (+ main_~X~0 1)))} is VALID [2022-04-08 11:06:14,164 INFO L290 TraceCheckUtils]: 36: Hoare triple {4297#(and (= (+ (- 2) main_~x~0) 0) (= (+ (- 2) main_~y~0) 0) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))) (<= main_~x~0 (+ main_~X~0 1)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {4301#(and (= main_~xy~0 (* main_~X~0 2)) (= (* main_~Y~0 2) main_~yx~0) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))) (<= 1 main_~X~0))} is VALID [2022-04-08 11:06:14,165 INFO L272 TraceCheckUtils]: 37: Hoare triple {4301#(and (= main_~xy~0 (* main_~X~0 2)) (= (* main_~Y~0 2) main_~yx~0) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))) (<= 1 main_~X~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {4305#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:06:14,165 INFO L290 TraceCheckUtils]: 38: Hoare triple {4305#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {4309#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:06:14,165 INFO L290 TraceCheckUtils]: 39: Hoare triple {4309#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {4183#false} is VALID [2022-04-08 11:06:14,166 INFO L290 TraceCheckUtils]: 40: Hoare triple {4183#false} assume !false; {4183#false} is VALID [2022-04-08 11:06:14,166 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-04-08 11:06:14,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:06:14,550 INFO L290 TraceCheckUtils]: 40: Hoare triple {4183#false} assume !false; {4183#false} is VALID [2022-04-08 11:06:14,551 INFO L290 TraceCheckUtils]: 39: Hoare triple {4309#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {4183#false} is VALID [2022-04-08 11:06:14,551 INFO L290 TraceCheckUtils]: 38: Hoare triple {4305#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {4309#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:06:14,552 INFO L272 TraceCheckUtils]: 37: Hoare triple {4325#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {4305#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:06:14,552 INFO L290 TraceCheckUtils]: 36: Hoare triple {4329#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {4325#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} is VALID [2022-04-08 11:06:14,554 INFO L290 TraceCheckUtils]: 35: Hoare triple {4333#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {4329#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:06:14,555 INFO L290 TraceCheckUtils]: 34: Hoare triple {4337#(or (< main_~v~0 0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {4333#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} is VALID [2022-04-08 11:06:14,556 INFO L290 TraceCheckUtils]: 33: Hoare triple {4341#(or (< main_~v~0 0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (not (<= main_~x~0 main_~X~0)))} assume !!(~x~0 <= ~X~0); {4337#(or (< main_~v~0 0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} is VALID [2022-04-08 11:06:14,556 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {4182#true} {4341#(or (< main_~v~0 0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (not (<= main_~x~0 main_~X~0)))} #65#return; {4341#(or (< main_~v~0 0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (not (<= main_~x~0 main_~X~0)))} is VALID [2022-04-08 11:06:14,557 INFO L290 TraceCheckUtils]: 31: Hoare triple {4182#true} assume true; {4182#true} is VALID [2022-04-08 11:06:14,557 INFO L290 TraceCheckUtils]: 30: Hoare triple {4182#true} assume !(0 == ~cond); {4182#true} is VALID [2022-04-08 11:06:14,557 INFO L290 TraceCheckUtils]: 29: Hoare triple {4182#true} ~cond := #in~cond; {4182#true} is VALID [2022-04-08 11:06:14,557 INFO L272 TraceCheckUtils]: 28: Hoare triple {4341#(or (< main_~v~0 0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (not (<= main_~x~0 main_~X~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {4182#true} is VALID [2022-04-08 11:06:14,563 INFO L290 TraceCheckUtils]: 27: Hoare triple {4341#(or (< main_~v~0 0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (not (<= main_~x~0 main_~X~0)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {4341#(or (< main_~v~0 0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (not (<= main_~x~0 main_~X~0)))} is VALID [2022-04-08 11:06:14,565 INFO L290 TraceCheckUtils]: 26: Hoare triple {4363#(or (< main_~v~0 0) (not (<= (+ main_~x~0 1) main_~X~0)) (= (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2)) (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* (* main_~X~0 (+ main_~y~0 1)) 2))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {4341#(or (< main_~v~0 0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (not (<= main_~x~0 main_~X~0)))} is VALID [2022-04-08 11:06:14,567 INFO L290 TraceCheckUtils]: 25: Hoare triple {4367#(or (not (<= (+ main_~x~0 1) main_~X~0)) (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2)) (= (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~y~0 2) main_~X~0)) main_~v~0 (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {4363#(or (< main_~v~0 0) (not (<= (+ main_~x~0 1) main_~X~0)) (= (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2)) (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* (* main_~X~0 (+ main_~y~0 1)) 2))))} is VALID [2022-04-08 11:06:14,567 INFO L290 TraceCheckUtils]: 24: Hoare triple {4367#(or (not (<= (+ main_~x~0 1) main_~X~0)) (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2)) (= (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~y~0 2) main_~X~0)) main_~v~0 (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))))} assume !!(~x~0 <= ~X~0); {4367#(or (not (<= (+ main_~x~0 1) main_~X~0)) (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2)) (= (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~y~0 2) main_~X~0)) main_~v~0 (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))))} is VALID [2022-04-08 11:06:14,568 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {4182#true} {4367#(or (not (<= (+ main_~x~0 1) main_~X~0)) (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2)) (= (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~y~0 2) main_~X~0)) main_~v~0 (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))))} #65#return; {4367#(or (not (<= (+ main_~x~0 1) main_~X~0)) (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2)) (= (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~y~0 2) main_~X~0)) main_~v~0 (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))))} is VALID [2022-04-08 11:06:14,568 INFO L290 TraceCheckUtils]: 22: Hoare triple {4182#true} assume true; {4182#true} is VALID [2022-04-08 11:06:14,568 INFO L290 TraceCheckUtils]: 21: Hoare triple {4182#true} assume !(0 == ~cond); {4182#true} is VALID [2022-04-08 11:06:14,568 INFO L290 TraceCheckUtils]: 20: Hoare triple {4182#true} ~cond := #in~cond; {4182#true} is VALID [2022-04-08 11:06:14,568 INFO L272 TraceCheckUtils]: 19: Hoare triple {4367#(or (not (<= (+ main_~x~0 1) main_~X~0)) (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2)) (= (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~y~0 2) main_~X~0)) main_~v~0 (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {4182#true} is VALID [2022-04-08 11:06:14,568 INFO L290 TraceCheckUtils]: 18: Hoare triple {4367#(or (not (<= (+ main_~x~0 1) main_~X~0)) (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2)) (= (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~y~0 2) main_~X~0)) main_~v~0 (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {4367#(or (not (<= (+ main_~x~0 1) main_~X~0)) (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2)) (= (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~y~0 2) main_~X~0)) main_~v~0 (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))))} is VALID [2022-04-08 11:06:14,569 INFO L290 TraceCheckUtils]: 17: Hoare triple {4182#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {4367#(or (not (<= (+ main_~x~0 1) main_~X~0)) (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2)) (= (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~y~0 2) main_~X~0)) main_~v~0 (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))))} is VALID [2022-04-08 11:06:14,569 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {4182#true} {4182#true} #63#return; {4182#true} is VALID [2022-04-08 11:06:14,569 INFO L290 TraceCheckUtils]: 15: Hoare triple {4182#true} assume true; {4182#true} is VALID [2022-04-08 11:06:14,569 INFO L290 TraceCheckUtils]: 14: Hoare triple {4182#true} assume !(0 == ~cond); {4182#true} is VALID [2022-04-08 11:06:14,569 INFO L290 TraceCheckUtils]: 13: Hoare triple {4182#true} ~cond := #in~cond; {4182#true} is VALID [2022-04-08 11:06:14,569 INFO L272 TraceCheckUtils]: 12: Hoare triple {4182#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {4182#true} is VALID [2022-04-08 11:06:14,569 INFO L290 TraceCheckUtils]: 11: Hoare triple {4182#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {4182#true} is VALID [2022-04-08 11:06:14,569 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {4182#true} {4182#true} #61#return; {4182#true} is VALID [2022-04-08 11:06:14,570 INFO L290 TraceCheckUtils]: 9: Hoare triple {4182#true} assume true; {4182#true} is VALID [2022-04-08 11:06:14,570 INFO L290 TraceCheckUtils]: 8: Hoare triple {4182#true} assume !(0 == ~cond); {4182#true} is VALID [2022-04-08 11:06:14,570 INFO L290 TraceCheckUtils]: 7: Hoare triple {4182#true} ~cond := #in~cond; {4182#true} is VALID [2022-04-08 11:06:14,570 INFO L272 TraceCheckUtils]: 6: Hoare triple {4182#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {4182#true} is VALID [2022-04-08 11:06:14,570 INFO L290 TraceCheckUtils]: 5: Hoare triple {4182#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {4182#true} is VALID [2022-04-08 11:06:14,570 INFO L272 TraceCheckUtils]: 4: Hoare triple {4182#true} call #t~ret8 := main(); {4182#true} is VALID [2022-04-08 11:06:14,570 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {4182#true} {4182#true} #69#return; {4182#true} is VALID [2022-04-08 11:06:14,570 INFO L290 TraceCheckUtils]: 2: Hoare triple {4182#true} assume true; {4182#true} is VALID [2022-04-08 11:06:14,570 INFO L290 TraceCheckUtils]: 1: Hoare triple {4182#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {4182#true} is VALID [2022-04-08 11:06:14,570 INFO L272 TraceCheckUtils]: 0: Hoare triple {4182#true} call ULTIMATE.init(); {4182#true} is VALID [2022-04-08 11:06:14,570 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-04-08 11:06:14,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:06:14,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648329049] [2022-04-08 11:06:14,571 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:06:14,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45747697] [2022-04-08 11:06:14,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45747697] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:06:14,571 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:06:14,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2022-04-08 11:06:14,571 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:06:14,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [523964526] [2022-04-08 11:06:14,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [523964526] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:06:14,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:06:14,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-08 11:06:14,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556734226] [2022-04-08 11:06:14,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:06:14,572 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2022-04-08 11:06:14,572 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:06:14,572 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:06:14,601 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:06:14,601 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-08 11:06:14,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:06:14,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-08 11:06:14,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-04-08 11:06:14,602 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:06:15,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:06:15,343 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2022-04-08 11:06:15,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-08 11:06:15,343 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2022-04-08 11:06:15,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:06:15,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:06:15,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 58 transitions. [2022-04-08 11:06:15,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:06:15,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 58 transitions. [2022-04-08 11:06:15,345 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 11 states and 58 transitions. [2022-04-08 11:06:15,400 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:06:15,401 INFO L225 Difference]: With dead ends: 86 [2022-04-08 11:06:15,401 INFO L226 Difference]: Without dead ends: 84 [2022-04-08 11:06:15,403 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2022-04-08 11:06:15,403 INFO L913 BasicCegarLoop]: 32 mSDtfsCounter, 11 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-08 11:06:15,404 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 184 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-08 11:06:15,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-04-08 11:06:15,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 73. [2022-04-08 11:06:15,485 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:06:15,486 INFO L82 GeneralOperation]: Start isEquivalent. First operand 84 states. Second operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-08 11:06:15,486 INFO L74 IsIncluded]: Start isIncluded. First operand 84 states. Second operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-08 11:06:15,486 INFO L87 Difference]: Start difference. First operand 84 states. Second operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-08 11:06:15,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:06:15,488 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2022-04-08 11:06:15,488 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2022-04-08 11:06:15,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:06:15,488 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:06:15,488 INFO L74 IsIncluded]: Start isIncluded. First operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand 84 states. [2022-04-08 11:06:15,489 INFO L87 Difference]: Start difference. First operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand 84 states. [2022-04-08 11:06:15,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:06:15,490 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2022-04-08 11:06:15,490 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2022-04-08 11:06:15,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:06:15,490 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:06:15,491 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:06:15,491 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:06:15,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-08 11:06:15,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2022-04-08 11:06:15,492 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 41 [2022-04-08 11:06:15,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:06:15,492 INFO L478 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2022-04-08 11:06:15,492 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-08 11:06:15,492 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 73 states and 80 transitions. [2022-04-08 11:06:15,613 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 80 edges. 80 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:06:15,613 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2022-04-08 11:06:15,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-04-08 11:06:15,613 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:06:15,613 INFO L499 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:06:15,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-04-08 11:06:15,815 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-04-08 11:06:15,815 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:06:15,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:06:15,831 INFO L85 PathProgramCache]: Analyzing trace with hash 651179076, now seen corresponding path program 1 times [2022-04-08 11:06:15,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:06:15,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1362173666] [2022-04-08 11:06:15,832 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:06:15,832 INFO L85 PathProgramCache]: Analyzing trace with hash 651179076, now seen corresponding path program 2 times [2022-04-08 11:06:15,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:06:15,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92674819] [2022-04-08 11:06:15,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:06:15,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:06:15,849 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:06:15,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735920562] [2022-04-08 11:06:15,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-08 11:06:15,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:06:15,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:06:15,851 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:06:15,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-04-08 11:06:15,884 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-08 11:06:15,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:06:15,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-08 11:06:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:06:15,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:06:16,541 INFO L272 TraceCheckUtils]: 0: Hoare triple {4935#true} call ULTIMATE.init(); {4935#true} is VALID [2022-04-08 11:06:16,542 INFO L290 TraceCheckUtils]: 1: Hoare triple {4935#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {4935#true} is VALID [2022-04-08 11:06:16,542 INFO L290 TraceCheckUtils]: 2: Hoare triple {4935#true} assume true; {4935#true} is VALID [2022-04-08 11:06:16,542 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {4935#true} {4935#true} #69#return; {4935#true} is VALID [2022-04-08 11:06:16,542 INFO L272 TraceCheckUtils]: 4: Hoare triple {4935#true} call #t~ret8 := main(); {4935#true} is VALID [2022-04-08 11:06:16,542 INFO L290 TraceCheckUtils]: 5: Hoare triple {4935#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {4935#true} is VALID [2022-04-08 11:06:16,542 INFO L272 TraceCheckUtils]: 6: Hoare triple {4935#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {4935#true} is VALID [2022-04-08 11:06:16,542 INFO L290 TraceCheckUtils]: 7: Hoare triple {4935#true} ~cond := #in~cond; {4935#true} is VALID [2022-04-08 11:06:16,542 INFO L290 TraceCheckUtils]: 8: Hoare triple {4935#true} assume !(0 == ~cond); {4935#true} is VALID [2022-04-08 11:06:16,542 INFO L290 TraceCheckUtils]: 9: Hoare triple {4935#true} assume true; {4935#true} is VALID [2022-04-08 11:06:16,542 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {4935#true} {4935#true} #61#return; {4935#true} is VALID [2022-04-08 11:06:16,542 INFO L290 TraceCheckUtils]: 11: Hoare triple {4935#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {4935#true} is VALID [2022-04-08 11:06:16,542 INFO L272 TraceCheckUtils]: 12: Hoare triple {4935#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {4935#true} is VALID [2022-04-08 11:06:16,543 INFO L290 TraceCheckUtils]: 13: Hoare triple {4935#true} ~cond := #in~cond; {4935#true} is VALID [2022-04-08 11:06:16,543 INFO L290 TraceCheckUtils]: 14: Hoare triple {4935#true} assume !(0 == ~cond); {4935#true} is VALID [2022-04-08 11:06:16,543 INFO L290 TraceCheckUtils]: 15: Hoare triple {4935#true} assume true; {4935#true} is VALID [2022-04-08 11:06:16,543 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {4935#true} {4935#true} #63#return; {4935#true} is VALID [2022-04-08 11:06:16,543 INFO L290 TraceCheckUtils]: 17: Hoare triple {4935#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {4991#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} is VALID [2022-04-08 11:06:16,543 INFO L290 TraceCheckUtils]: 18: Hoare triple {4991#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {4991#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} is VALID [2022-04-08 11:06:16,544 INFO L272 TraceCheckUtils]: 19: Hoare triple {4991#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {4935#true} is VALID [2022-04-08 11:06:16,544 INFO L290 TraceCheckUtils]: 20: Hoare triple {4935#true} ~cond := #in~cond; {4935#true} is VALID [2022-04-08 11:06:16,544 INFO L290 TraceCheckUtils]: 21: Hoare triple {4935#true} assume !(0 == ~cond); {4935#true} is VALID [2022-04-08 11:06:16,544 INFO L290 TraceCheckUtils]: 22: Hoare triple {4935#true} assume true; {4935#true} is VALID [2022-04-08 11:06:16,544 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {4935#true} {4991#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} #65#return; {4991#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} is VALID [2022-04-08 11:06:16,545 INFO L290 TraceCheckUtils]: 24: Hoare triple {4991#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} assume !!(~x~0 <= ~X~0); {4991#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} is VALID [2022-04-08 11:06:16,545 INFO L290 TraceCheckUtils]: 25: Hoare triple {4991#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {5016#(and (<= main_~x~0 0) (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 2) 1)))} is VALID [2022-04-08 11:06:16,546 INFO L290 TraceCheckUtils]: 26: Hoare triple {5016#(and (<= main_~x~0 0) (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 2) 1)))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {5020#(and (<= main_~x~0 1) (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 2) 1)))} is VALID [2022-04-08 11:06:16,547 INFO L290 TraceCheckUtils]: 27: Hoare triple {5020#(and (<= main_~x~0 1) (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 2) 1)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {5020#(and (<= main_~x~0 1) (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 2) 1)))} is VALID [2022-04-08 11:06:16,547 INFO L272 TraceCheckUtils]: 28: Hoare triple {5020#(and (<= main_~x~0 1) (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 2) 1)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {4935#true} is VALID [2022-04-08 11:06:16,547 INFO L290 TraceCheckUtils]: 29: Hoare triple {4935#true} ~cond := #in~cond; {4935#true} is VALID [2022-04-08 11:06:16,547 INFO L290 TraceCheckUtils]: 30: Hoare triple {4935#true} assume !(0 == ~cond); {4935#true} is VALID [2022-04-08 11:06:16,547 INFO L290 TraceCheckUtils]: 31: Hoare triple {4935#true} assume true; {4935#true} is VALID [2022-04-08 11:06:16,547 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {4935#true} {5020#(and (<= main_~x~0 1) (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 2) 1)))} #65#return; {5020#(and (<= main_~x~0 1) (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 2) 1)))} is VALID [2022-04-08 11:06:16,548 INFO L290 TraceCheckUtils]: 33: Hoare triple {5020#(and (<= main_~x~0 1) (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 2) 1)))} assume !!(~x~0 <= ~X~0); {5020#(and (<= main_~x~0 1) (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 2) 1)))} is VALID [2022-04-08 11:06:16,548 INFO L290 TraceCheckUtils]: 34: Hoare triple {5020#(and (<= main_~x~0 1) (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 2) 1)))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {5045#(and (<= main_~x~0 1) (< 0 (div (+ (- 1) main_~X~0) 2)))} is VALID [2022-04-08 11:06:16,549 INFO L290 TraceCheckUtils]: 35: Hoare triple {5045#(and (<= main_~x~0 1) (< 0 (div (+ (- 1) main_~X~0) 2)))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {5049#(and (<= main_~x~0 2) (< 0 (div (+ (- 1) main_~X~0) 2)))} is VALID [2022-04-08 11:06:16,549 INFO L290 TraceCheckUtils]: 36: Hoare triple {5049#(and (<= main_~x~0 2) (< 0 (div (+ (- 1) main_~X~0) 2)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {5049#(and (<= main_~x~0 2) (< 0 (div (+ (- 1) main_~X~0) 2)))} is VALID [2022-04-08 11:06:16,549 INFO L272 TraceCheckUtils]: 37: Hoare triple {5049#(and (<= main_~x~0 2) (< 0 (div (+ (- 1) main_~X~0) 2)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {4935#true} is VALID [2022-04-08 11:06:16,549 INFO L290 TraceCheckUtils]: 38: Hoare triple {4935#true} ~cond := #in~cond; {4935#true} is VALID [2022-04-08 11:06:16,550 INFO L290 TraceCheckUtils]: 39: Hoare triple {4935#true} assume !(0 == ~cond); {4935#true} is VALID [2022-04-08 11:06:16,550 INFO L290 TraceCheckUtils]: 40: Hoare triple {4935#true} assume true; {4935#true} is VALID [2022-04-08 11:06:16,550 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {4935#true} {5049#(and (<= main_~x~0 2) (< 0 (div (+ (- 1) main_~X~0) 2)))} #65#return; {5049#(and (<= main_~x~0 2) (< 0 (div (+ (- 1) main_~X~0) 2)))} is VALID [2022-04-08 11:06:16,551 INFO L290 TraceCheckUtils]: 42: Hoare triple {5049#(and (<= main_~x~0 2) (< 0 (div (+ (- 1) main_~X~0) 2)))} assume !(~x~0 <= ~X~0); {4936#false} is VALID [2022-04-08 11:06:16,551 INFO L290 TraceCheckUtils]: 43: Hoare triple {4936#false} ~xy~0 := ~x~0 * ~y~0;~yx~0 := ~Y~0 * ~x~0; {4936#false} is VALID [2022-04-08 11:06:16,551 INFO L272 TraceCheckUtils]: 44: Hoare triple {4936#false} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 + 2 * ~y~0 then 1 else 0)); {4936#false} is VALID [2022-04-08 11:06:16,551 INFO L290 TraceCheckUtils]: 45: Hoare triple {4936#false} ~cond := #in~cond; {4936#false} is VALID [2022-04-08 11:06:16,551 INFO L290 TraceCheckUtils]: 46: Hoare triple {4936#false} assume 0 == ~cond; {4936#false} is VALID [2022-04-08 11:06:16,551 INFO L290 TraceCheckUtils]: 47: Hoare triple {4936#false} assume !false; {4936#false} is VALID [2022-04-08 11:06:16,551 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-04-08 11:06:16,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:06:16,812 INFO L290 TraceCheckUtils]: 47: Hoare triple {4936#false} assume !false; {4936#false} is VALID [2022-04-08 11:06:16,812 INFO L290 TraceCheckUtils]: 46: Hoare triple {4936#false} assume 0 == ~cond; {4936#false} is VALID [2022-04-08 11:06:16,812 INFO L290 TraceCheckUtils]: 45: Hoare triple {4936#false} ~cond := #in~cond; {4936#false} is VALID [2022-04-08 11:06:16,812 INFO L272 TraceCheckUtils]: 44: Hoare triple {4936#false} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 + 2 * ~y~0 then 1 else 0)); {4936#false} is VALID [2022-04-08 11:06:16,812 INFO L290 TraceCheckUtils]: 43: Hoare triple {4936#false} ~xy~0 := ~x~0 * ~y~0;~yx~0 := ~Y~0 * ~x~0; {4936#false} is VALID [2022-04-08 11:06:16,813 INFO L290 TraceCheckUtils]: 42: Hoare triple {5101#(<= main_~x~0 main_~X~0)} assume !(~x~0 <= ~X~0); {4936#false} is VALID [2022-04-08 11:06:16,814 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {4935#true} {5101#(<= main_~x~0 main_~X~0)} #65#return; {5101#(<= main_~x~0 main_~X~0)} is VALID [2022-04-08 11:06:16,814 INFO L290 TraceCheckUtils]: 40: Hoare triple {4935#true} assume true; {4935#true} is VALID [2022-04-08 11:06:16,814 INFO L290 TraceCheckUtils]: 39: Hoare triple {4935#true} assume !(0 == ~cond); {4935#true} is VALID [2022-04-08 11:06:16,814 INFO L290 TraceCheckUtils]: 38: Hoare triple {4935#true} ~cond := #in~cond; {4935#true} is VALID [2022-04-08 11:06:16,814 INFO L272 TraceCheckUtils]: 37: Hoare triple {5101#(<= main_~x~0 main_~X~0)} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {4935#true} is VALID [2022-04-08 11:06:16,814 INFO L290 TraceCheckUtils]: 36: Hoare triple {5101#(<= main_~x~0 main_~X~0)} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {5101#(<= main_~x~0 main_~X~0)} is VALID [2022-04-08 11:06:16,815 INFO L290 TraceCheckUtils]: 35: Hoare triple {5123#(<= (+ main_~x~0 1) main_~X~0)} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {5101#(<= main_~x~0 main_~X~0)} is VALID [2022-04-08 11:06:16,815 INFO L290 TraceCheckUtils]: 34: Hoare triple {5127#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {5123#(<= (+ main_~x~0 1) main_~X~0)} is VALID [2022-04-08 11:06:16,816 INFO L290 TraceCheckUtils]: 33: Hoare triple {5127#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} assume !!(~x~0 <= ~X~0); {5127#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} is VALID [2022-04-08 11:06:16,816 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {4935#true} {5127#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} #65#return; {5127#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} is VALID [2022-04-08 11:06:16,816 INFO L290 TraceCheckUtils]: 31: Hoare triple {4935#true} assume true; {4935#true} is VALID [2022-04-08 11:06:16,816 INFO L290 TraceCheckUtils]: 30: Hoare triple {4935#true} assume !(0 == ~cond); {4935#true} is VALID [2022-04-08 11:06:16,816 INFO L290 TraceCheckUtils]: 29: Hoare triple {4935#true} ~cond := #in~cond; {4935#true} is VALID [2022-04-08 11:06:16,816 INFO L272 TraceCheckUtils]: 28: Hoare triple {5127#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {4935#true} is VALID [2022-04-08 11:06:16,817 INFO L290 TraceCheckUtils]: 27: Hoare triple {5127#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {5127#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} is VALID [2022-04-08 11:06:16,817 INFO L290 TraceCheckUtils]: 26: Hoare triple {5152#(or (<= (+ main_~x~0 2) main_~X~0) (< main_~v~0 0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {5127#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} is VALID [2022-04-08 11:06:16,818 INFO L290 TraceCheckUtils]: 25: Hoare triple {5156#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {5152#(or (<= (+ main_~x~0 2) main_~X~0) (< main_~v~0 0))} is VALID [2022-04-08 11:06:16,818 INFO L290 TraceCheckUtils]: 24: Hoare triple {5156#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} assume !!(~x~0 <= ~X~0); {5156#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} is VALID [2022-04-08 11:06:16,819 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {4935#true} {5156#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} #65#return; {5156#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} is VALID [2022-04-08 11:06:16,819 INFO L290 TraceCheckUtils]: 22: Hoare triple {4935#true} assume true; {4935#true} is VALID [2022-04-08 11:06:16,819 INFO L290 TraceCheckUtils]: 21: Hoare triple {4935#true} assume !(0 == ~cond); {4935#true} is VALID [2022-04-08 11:06:16,819 INFO L290 TraceCheckUtils]: 20: Hoare triple {4935#true} ~cond := #in~cond; {4935#true} is VALID [2022-04-08 11:06:16,819 INFO L272 TraceCheckUtils]: 19: Hoare triple {5156#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {4935#true} is VALID [2022-04-08 11:06:16,819 INFO L290 TraceCheckUtils]: 18: Hoare triple {5156#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {5156#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} is VALID [2022-04-08 11:06:16,820 INFO L290 TraceCheckUtils]: 17: Hoare triple {4935#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {5156#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} is VALID [2022-04-08 11:06:16,820 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {4935#true} {4935#true} #63#return; {4935#true} is VALID [2022-04-08 11:06:16,820 INFO L290 TraceCheckUtils]: 15: Hoare triple {4935#true} assume true; {4935#true} is VALID [2022-04-08 11:06:16,820 INFO L290 TraceCheckUtils]: 14: Hoare triple {4935#true} assume !(0 == ~cond); {4935#true} is VALID [2022-04-08 11:06:16,820 INFO L290 TraceCheckUtils]: 13: Hoare triple {4935#true} ~cond := #in~cond; {4935#true} is VALID [2022-04-08 11:06:16,820 INFO L272 TraceCheckUtils]: 12: Hoare triple {4935#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {4935#true} is VALID [2022-04-08 11:06:16,820 INFO L290 TraceCheckUtils]: 11: Hoare triple {4935#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {4935#true} is VALID [2022-04-08 11:06:16,820 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {4935#true} {4935#true} #61#return; {4935#true} is VALID [2022-04-08 11:06:16,821 INFO L290 TraceCheckUtils]: 9: Hoare triple {4935#true} assume true; {4935#true} is VALID [2022-04-08 11:06:16,821 INFO L290 TraceCheckUtils]: 8: Hoare triple {4935#true} assume !(0 == ~cond); {4935#true} is VALID [2022-04-08 11:06:16,821 INFO L290 TraceCheckUtils]: 7: Hoare triple {4935#true} ~cond := #in~cond; {4935#true} is VALID [2022-04-08 11:06:16,821 INFO L272 TraceCheckUtils]: 6: Hoare triple {4935#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {4935#true} is VALID [2022-04-08 11:06:16,821 INFO L290 TraceCheckUtils]: 5: Hoare triple {4935#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {4935#true} is VALID [2022-04-08 11:06:16,821 INFO L272 TraceCheckUtils]: 4: Hoare triple {4935#true} call #t~ret8 := main(); {4935#true} is VALID [2022-04-08 11:06:16,821 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {4935#true} {4935#true} #69#return; {4935#true} is VALID [2022-04-08 11:06:16,821 INFO L290 TraceCheckUtils]: 2: Hoare triple {4935#true} assume true; {4935#true} is VALID [2022-04-08 11:06:16,821 INFO L290 TraceCheckUtils]: 1: Hoare triple {4935#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {4935#true} is VALID [2022-04-08 11:06:16,821 INFO L272 TraceCheckUtils]: 0: Hoare triple {4935#true} call ULTIMATE.init(); {4935#true} is VALID [2022-04-08 11:06:16,821 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-04-08 11:06:16,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:06:16,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92674819] [2022-04-08 11:06:16,822 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:06:16,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735920562] [2022-04-08 11:06:16,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735920562] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:06:16,822 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:06:16,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-04-08 11:06:16,822 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:06:16,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1362173666] [2022-04-08 11:06:16,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1362173666] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:06:16,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:06:16,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-08 11:06:16,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755268918] [2022-04-08 11:06:16,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:06:16,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 48 [2022-04-08 11:06:16,823 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:06:16,823 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:06:16,849 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:06:16,849 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-08 11:06:16,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:06:16,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-08 11:06:16,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-04-08 11:06:16,849 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:06:17,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:06:17,186 INFO L93 Difference]: Finished difference Result 87 states and 96 transitions. [2022-04-08 11:06:17,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-08 11:06:17,187 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 48 [2022-04-08 11:06:17,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:06:17,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:06:17,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 59 transitions. [2022-04-08 11:06:17,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:06:17,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 59 transitions. [2022-04-08 11:06:17,189 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 59 transitions. [2022-04-08 11:06:17,230 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 59 edges. 59 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:06:17,232 INFO L225 Difference]: With dead ends: 87 [2022-04-08 11:06:17,232 INFO L226 Difference]: Without dead ends: 79 [2022-04-08 11:06:17,232 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-04-08 11:06:17,232 INFO L913 BasicCegarLoop]: 31 mSDtfsCounter, 3 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 11:06:17,233 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 102 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 11:06:17,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-04-08 11:06:17,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2022-04-08 11:06:17,341 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:06:17,341 INFO L82 GeneralOperation]: Start isEquivalent. First operand 79 states. Second operand has 76 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 57 states have internal predecessors, (60), 13 states have call successors, (13), 9 states have call predecessors, (13), 8 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-04-08 11:06:17,341 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand has 76 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 57 states have internal predecessors, (60), 13 states have call successors, (13), 9 states have call predecessors, (13), 8 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-04-08 11:06:17,341 INFO L87 Difference]: Start difference. First operand 79 states. Second operand has 76 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 57 states have internal predecessors, (60), 13 states have call successors, (13), 9 states have call predecessors, (13), 8 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-04-08 11:06:17,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:06:17,343 INFO L93 Difference]: Finished difference Result 79 states and 88 transitions. [2022-04-08 11:06:17,343 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2022-04-08 11:06:17,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:06:17,344 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:06:17,344 INFO L74 IsIncluded]: Start isIncluded. First operand has 76 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 57 states have internal predecessors, (60), 13 states have call successors, (13), 9 states have call predecessors, (13), 8 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand 79 states. [2022-04-08 11:06:17,344 INFO L87 Difference]: Start difference. First operand has 76 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 57 states have internal predecessors, (60), 13 states have call successors, (13), 9 states have call predecessors, (13), 8 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand 79 states. [2022-04-08 11:06:17,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:06:17,345 INFO L93 Difference]: Finished difference Result 79 states and 88 transitions. [2022-04-08 11:06:17,345 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2022-04-08 11:06:17,345 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:06:17,345 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:06:17,345 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:06:17,345 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:06:17,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 57 states have internal predecessors, (60), 13 states have call successors, (13), 9 states have call predecessors, (13), 8 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-04-08 11:06:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2022-04-08 11:06:17,347 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 48 [2022-04-08 11:06:17,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:06:17,347 INFO L478 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2022-04-08 11:06:17,347 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:06:17,347 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 76 states and 84 transitions. [2022-04-08 11:06:17,491 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 84 edges. 84 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:06:17,492 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2022-04-08 11:06:17,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-04-08 11:06:17,492 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:06:17,492 INFO L499 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:06:17,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-04-08 11:06:17,692 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-04-08 11:06:17,693 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:06:17,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:06:17,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1154259258, now seen corresponding path program 3 times [2022-04-08 11:06:17,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:06:17,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [154385242] [2022-04-08 11:06:17,693 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:06:17,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1154259258, now seen corresponding path program 4 times [2022-04-08 11:06:17,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:06:17,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145605598] [2022-04-08 11:06:17,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:06:17,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:06:17,705 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:06:17,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [812180999] [2022-04-08 11:06:17,705 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-08 11:06:17,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:06:17,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:06:17,706 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:06:17,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-04-08 11:06:17,752 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-08 11:06:17,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:06:17,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 35 conjunts are in the unsatisfiable core [2022-04-08 11:06:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:06:17,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:06:18,200 INFO L272 TraceCheckUtils]: 0: Hoare triple {5718#true} call ULTIMATE.init(); {5718#true} is VALID [2022-04-08 11:06:18,200 INFO L290 TraceCheckUtils]: 1: Hoare triple {5718#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {5718#true} is VALID [2022-04-08 11:06:18,200 INFO L290 TraceCheckUtils]: 2: Hoare triple {5718#true} assume true; {5718#true} is VALID [2022-04-08 11:06:18,200 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {5718#true} {5718#true} #69#return; {5718#true} is VALID [2022-04-08 11:06:18,200 INFO L272 TraceCheckUtils]: 4: Hoare triple {5718#true} call #t~ret8 := main(); {5718#true} is VALID [2022-04-08 11:06:18,200 INFO L290 TraceCheckUtils]: 5: Hoare triple {5718#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {5718#true} is VALID [2022-04-08 11:06:18,200 INFO L272 TraceCheckUtils]: 6: Hoare triple {5718#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {5718#true} is VALID [2022-04-08 11:06:18,201 INFO L290 TraceCheckUtils]: 7: Hoare triple {5718#true} ~cond := #in~cond; {5718#true} is VALID [2022-04-08 11:06:18,201 INFO L290 TraceCheckUtils]: 8: Hoare triple {5718#true} assume !(0 == ~cond); {5718#true} is VALID [2022-04-08 11:06:18,201 INFO L290 TraceCheckUtils]: 9: Hoare triple {5718#true} assume true; {5718#true} is VALID [2022-04-08 11:06:18,201 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {5718#true} {5718#true} #61#return; {5718#true} is VALID [2022-04-08 11:06:18,201 INFO L290 TraceCheckUtils]: 11: Hoare triple {5718#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {5718#true} is VALID [2022-04-08 11:06:18,201 INFO L272 TraceCheckUtils]: 12: Hoare triple {5718#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {5718#true} is VALID [2022-04-08 11:06:18,201 INFO L290 TraceCheckUtils]: 13: Hoare triple {5718#true} ~cond := #in~cond; {5718#true} is VALID [2022-04-08 11:06:18,201 INFO L290 TraceCheckUtils]: 14: Hoare triple {5718#true} assume !(0 == ~cond); {5718#true} is VALID [2022-04-08 11:06:18,201 INFO L290 TraceCheckUtils]: 15: Hoare triple {5718#true} assume true; {5718#true} is VALID [2022-04-08 11:06:18,201 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {5718#true} {5718#true} #63#return; {5718#true} is VALID [2022-04-08 11:06:18,202 INFO L290 TraceCheckUtils]: 17: Hoare triple {5718#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {5774#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-08 11:06:18,202 INFO L290 TraceCheckUtils]: 18: Hoare triple {5774#(and (= main_~x~0 0) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {5774#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-08 11:06:18,202 INFO L272 TraceCheckUtils]: 19: Hoare triple {5774#(and (= main_~x~0 0) (= main_~y~0 0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {5718#true} is VALID [2022-04-08 11:06:18,202 INFO L290 TraceCheckUtils]: 20: Hoare triple {5718#true} ~cond := #in~cond; {5718#true} is VALID [2022-04-08 11:06:18,202 INFO L290 TraceCheckUtils]: 21: Hoare triple {5718#true} assume !(0 == ~cond); {5718#true} is VALID [2022-04-08 11:06:18,202 INFO L290 TraceCheckUtils]: 22: Hoare triple {5718#true} assume true; {5718#true} is VALID [2022-04-08 11:06:18,203 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {5718#true} {5774#(and (= main_~x~0 0) (= main_~y~0 0))} #65#return; {5774#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-08 11:06:18,203 INFO L290 TraceCheckUtils]: 24: Hoare triple {5774#(and (= main_~x~0 0) (= main_~y~0 0))} assume !!(~x~0 <= ~X~0); {5774#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-08 11:06:18,203 INFO L290 TraceCheckUtils]: 25: Hoare triple {5774#(and (= main_~x~0 0) (= main_~y~0 0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {5799#(and (= main_~x~0 0) (= main_~y~0 1))} is VALID [2022-04-08 11:06:18,204 INFO L290 TraceCheckUtils]: 26: Hoare triple {5799#(and (= main_~x~0 0) (= main_~y~0 1))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {5803#(and (= main_~y~0 1) (= main_~x~0 1))} is VALID [2022-04-08 11:06:18,204 INFO L290 TraceCheckUtils]: 27: Hoare triple {5803#(and (= main_~y~0 1) (= main_~x~0 1))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {5803#(and (= main_~y~0 1) (= main_~x~0 1))} is VALID [2022-04-08 11:06:18,204 INFO L272 TraceCheckUtils]: 28: Hoare triple {5803#(and (= main_~y~0 1) (= main_~x~0 1))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {5718#true} is VALID [2022-04-08 11:06:18,204 INFO L290 TraceCheckUtils]: 29: Hoare triple {5718#true} ~cond := #in~cond; {5813#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:06:18,205 INFO L290 TraceCheckUtils]: 30: Hoare triple {5813#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {5817#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:06:18,205 INFO L290 TraceCheckUtils]: 31: Hoare triple {5817#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {5817#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:06:18,205 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {5817#(not (= |__VERIFIER_assert_#in~cond| 0))} {5803#(and (= main_~y~0 1) (= main_~x~0 1))} #65#return; {5803#(and (= main_~y~0 1) (= main_~x~0 1))} is VALID [2022-04-08 11:06:18,206 INFO L290 TraceCheckUtils]: 33: Hoare triple {5803#(and (= main_~y~0 1) (= main_~x~0 1))} assume !!(~x~0 <= ~X~0); {5827#(and (<= main_~x~0 main_~X~0) (= main_~y~0 1) (= main_~x~0 1))} is VALID [2022-04-08 11:06:18,206 INFO L290 TraceCheckUtils]: 34: Hoare triple {5827#(and (<= main_~x~0 main_~X~0) (= main_~y~0 1) (= main_~x~0 1))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {5831#(and (<= main_~x~0 main_~X~0) (= (+ (- 1) main_~y~0) 1) (= main_~x~0 1))} is VALID [2022-04-08 11:06:18,207 INFO L290 TraceCheckUtils]: 35: Hoare triple {5831#(and (<= main_~x~0 main_~X~0) (= (+ (- 1) main_~y~0) 1) (= main_~x~0 1))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {5835#(and (= (+ (- 1) main_~x~0) 1) (= (+ (- 1) main_~y~0) 1) (<= main_~x~0 (+ main_~X~0 1)))} is VALID [2022-04-08 11:06:18,207 INFO L290 TraceCheckUtils]: 36: Hoare triple {5835#(and (= (+ (- 1) main_~x~0) 1) (= (+ (- 1) main_~y~0) 1) (<= main_~x~0 (+ main_~X~0 1)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {5839#(and (= (+ (- 1) main_~x~0) 1) (= (+ (- 1) main_~y~0) 1) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)) (<= main_~x~0 (+ main_~X~0 1)))} is VALID [2022-04-08 11:06:18,207 INFO L272 TraceCheckUtils]: 37: Hoare triple {5839#(and (= (+ (- 1) main_~x~0) 1) (= (+ (- 1) main_~y~0) 1) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)) (<= main_~x~0 (+ main_~X~0 1)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {5718#true} is VALID [2022-04-08 11:06:18,207 INFO L290 TraceCheckUtils]: 38: Hoare triple {5718#true} ~cond := #in~cond; {5813#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:06:18,208 INFO L290 TraceCheckUtils]: 39: Hoare triple {5813#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {5817#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:06:18,208 INFO L290 TraceCheckUtils]: 40: Hoare triple {5817#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {5817#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:06:18,209 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {5817#(not (= |__VERIFIER_assert_#in~cond| 0))} {5839#(and (= (+ (- 1) main_~x~0) 1) (= (+ (- 1) main_~y~0) 1) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)) (<= main_~x~0 (+ main_~X~0 1)))} #65#return; {5855#(and (= (+ (- 1) main_~x~0) 1) (= (+ (- 1) main_~y~0) 1) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (<= main_~x~0 (+ main_~X~0 1)))} is VALID [2022-04-08 11:06:18,209 INFO L290 TraceCheckUtils]: 42: Hoare triple {5855#(and (= (+ (- 1) main_~x~0) 1) (= (+ (- 1) main_~y~0) 1) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (<= main_~x~0 (+ main_~X~0 1)))} assume !(~x~0 <= ~X~0); {5859#(and (= (+ (- 1) main_~x~0) 1) (= (+ (- 1) main_~y~0) 1) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (<= main_~x~0 main_~X~0)) (<= main_~x~0 (+ main_~X~0 1)))} is VALID [2022-04-08 11:06:18,210 INFO L290 TraceCheckUtils]: 43: Hoare triple {5859#(and (= (+ (- 1) main_~x~0) 1) (= (+ (- 1) main_~y~0) 1) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (<= main_~x~0 main_~X~0)) (<= main_~x~0 (+ main_~X~0 1)))} ~xy~0 := ~x~0 * ~y~0;~yx~0 := ~Y~0 * ~x~0; {5863#(and (= (* main_~y~0 2) main_~xy~0) (= (+ (- 1) main_~y~0) 1) (= (* main_~Y~0 2) main_~yx~0) (<= 1 main_~X~0) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (* main_~Y~0 6)) (not (<= 2 main_~X~0)))} is VALID [2022-04-08 11:06:18,211 INFO L272 TraceCheckUtils]: 44: Hoare triple {5863#(and (= (* main_~y~0 2) main_~xy~0) (= (+ (- 1) main_~y~0) 1) (= (* main_~Y~0 2) main_~yx~0) (<= 1 main_~X~0) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (* main_~Y~0 6)) (not (<= 2 main_~X~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 + 2 * ~y~0 then 1 else 0)); {5867#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:06:18,211 INFO L290 TraceCheckUtils]: 45: Hoare triple {5867#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {5871#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:06:18,212 INFO L290 TraceCheckUtils]: 46: Hoare triple {5871#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {5719#false} is VALID [2022-04-08 11:06:18,212 INFO L290 TraceCheckUtils]: 47: Hoare triple {5719#false} assume !false; {5719#false} is VALID [2022-04-08 11:06:18,212 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-08 11:06:18,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:06:18,765 INFO L290 TraceCheckUtils]: 47: Hoare triple {5719#false} assume !false; {5719#false} is VALID [2022-04-08 11:06:18,766 INFO L290 TraceCheckUtils]: 46: Hoare triple {5871#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {5719#false} is VALID [2022-04-08 11:06:18,766 INFO L290 TraceCheckUtils]: 45: Hoare triple {5867#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {5871#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:06:18,767 INFO L272 TraceCheckUtils]: 44: Hoare triple {5887#(= (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 main_~yx~0)) (+ (* 2 main_~xy~0) main_~X~0 main_~v~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 + 2 * ~y~0 then 1 else 0)); {5867#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:06:18,768 INFO L290 TraceCheckUtils]: 43: Hoare triple {5891#(= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))))} ~xy~0 := ~x~0 * ~y~0;~yx~0 := ~Y~0 * ~x~0; {5887#(= (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 main_~yx~0)) (+ (* 2 main_~xy~0) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:06:18,768 INFO L290 TraceCheckUtils]: 42: Hoare triple {5895#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} assume !(~x~0 <= ~X~0); {5891#(= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))))} is VALID [2022-04-08 11:06:18,769 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {5817#(not (= |__VERIFIER_assert_#in~cond| 0))} {5899#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) (* (- 2) main_~xy~0) (* main_~Y~0 2) (* 2 main_~yx~0)) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} #65#return; {5895#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} is VALID [2022-04-08 11:06:18,769 INFO L290 TraceCheckUtils]: 40: Hoare triple {5817#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {5817#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:06:18,770 INFO L290 TraceCheckUtils]: 39: Hoare triple {5909#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} assume !(0 == ~cond); {5817#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:06:18,770 INFO L290 TraceCheckUtils]: 38: Hoare triple {5718#true} ~cond := #in~cond; {5909#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 11:06:18,770 INFO L272 TraceCheckUtils]: 37: Hoare triple {5899#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) (* (- 2) main_~xy~0) (* main_~Y~0 2) (* 2 main_~yx~0)) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {5718#true} is VALID [2022-04-08 11:06:18,771 INFO L290 TraceCheckUtils]: 36: Hoare triple {5916#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) (* main_~Y~0 2) (* (* main_~X~0 main_~y~0) (- 2)) (* 2 (* main_~Y~0 main_~x~0))) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {5899#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) (* (- 2) main_~xy~0) (* main_~Y~0 2) (* 2 main_~yx~0)) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} is VALID [2022-04-08 11:06:18,772 INFO L290 TraceCheckUtils]: 35: Hoare triple {5920#(or (<= (+ main_~x~0 1) main_~X~0) (= (+ (* (* (+ main_~x~0 1) main_~y~0) 2) (* main_~Y~0 2) (* (* main_~X~0 main_~y~0) (- 2)) (* 2 (* (+ main_~x~0 1) main_~Y~0))) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {5916#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) (* main_~Y~0 2) (* (* main_~X~0 main_~y~0) (- 2)) (* 2 (* main_~Y~0 main_~x~0))) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} is VALID [2022-04-08 11:06:18,774 INFO L290 TraceCheckUtils]: 34: Hoare triple {5924#(or (= (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)) (* 2 (* (+ main_~x~0 1) (+ main_~y~0 1))) (* (* main_~X~0 (+ main_~y~0 1)) (- 2))) (+ 2 (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (<= (+ main_~x~0 1) main_~X~0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {5920#(or (<= (+ main_~x~0 1) main_~X~0) (= (+ (* (* (+ main_~x~0 1) main_~y~0) 2) (* main_~Y~0 2) (* (* main_~X~0 main_~y~0) (- 2)) (* 2 (* (+ main_~x~0 1) main_~Y~0))) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} is VALID [2022-04-08 11:06:18,775 INFO L290 TraceCheckUtils]: 33: Hoare triple {5718#true} assume !!(~x~0 <= ~X~0); {5924#(or (= (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)) (* 2 (* (+ main_~x~0 1) (+ main_~y~0 1))) (* (* main_~X~0 (+ main_~y~0 1)) (- 2))) (+ 2 (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (<= (+ main_~x~0 1) main_~X~0))} is VALID [2022-04-08 11:06:18,775 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {5718#true} {5718#true} #65#return; {5718#true} is VALID [2022-04-08 11:06:18,775 INFO L290 TraceCheckUtils]: 31: Hoare triple {5718#true} assume true; {5718#true} is VALID [2022-04-08 11:06:18,776 INFO L290 TraceCheckUtils]: 30: Hoare triple {5718#true} assume !(0 == ~cond); {5718#true} is VALID [2022-04-08 11:06:18,776 INFO L290 TraceCheckUtils]: 29: Hoare triple {5718#true} ~cond := #in~cond; {5718#true} is VALID [2022-04-08 11:06:18,776 INFO L272 TraceCheckUtils]: 28: Hoare triple {5718#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {5718#true} is VALID [2022-04-08 11:06:18,776 INFO L290 TraceCheckUtils]: 27: Hoare triple {5718#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {5718#true} is VALID [2022-04-08 11:06:18,776 INFO L290 TraceCheckUtils]: 26: Hoare triple {5718#true} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {5718#true} is VALID [2022-04-08 11:06:18,776 INFO L290 TraceCheckUtils]: 25: Hoare triple {5718#true} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {5718#true} is VALID [2022-04-08 11:06:18,776 INFO L290 TraceCheckUtils]: 24: Hoare triple {5718#true} assume !!(~x~0 <= ~X~0); {5718#true} is VALID [2022-04-08 11:06:18,776 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {5718#true} {5718#true} #65#return; {5718#true} is VALID [2022-04-08 11:06:18,776 INFO L290 TraceCheckUtils]: 22: Hoare triple {5718#true} assume true; {5718#true} is VALID [2022-04-08 11:06:18,776 INFO L290 TraceCheckUtils]: 21: Hoare triple {5718#true} assume !(0 == ~cond); {5718#true} is VALID [2022-04-08 11:06:18,776 INFO L290 TraceCheckUtils]: 20: Hoare triple {5718#true} ~cond := #in~cond; {5718#true} is VALID [2022-04-08 11:06:18,776 INFO L272 TraceCheckUtils]: 19: Hoare triple {5718#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {5718#true} is VALID [2022-04-08 11:06:18,776 INFO L290 TraceCheckUtils]: 18: Hoare triple {5718#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {5718#true} is VALID [2022-04-08 11:06:18,777 INFO L290 TraceCheckUtils]: 17: Hoare triple {5718#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {5718#true} is VALID [2022-04-08 11:06:18,777 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {5718#true} {5718#true} #63#return; {5718#true} is VALID [2022-04-08 11:06:18,777 INFO L290 TraceCheckUtils]: 15: Hoare triple {5718#true} assume true; {5718#true} is VALID [2022-04-08 11:06:18,777 INFO L290 TraceCheckUtils]: 14: Hoare triple {5718#true} assume !(0 == ~cond); {5718#true} is VALID [2022-04-08 11:06:18,777 INFO L290 TraceCheckUtils]: 13: Hoare triple {5718#true} ~cond := #in~cond; {5718#true} is VALID [2022-04-08 11:06:18,777 INFO L272 TraceCheckUtils]: 12: Hoare triple {5718#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {5718#true} is VALID [2022-04-08 11:06:18,777 INFO L290 TraceCheckUtils]: 11: Hoare triple {5718#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {5718#true} is VALID [2022-04-08 11:06:18,777 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {5718#true} {5718#true} #61#return; {5718#true} is VALID [2022-04-08 11:06:18,777 INFO L290 TraceCheckUtils]: 9: Hoare triple {5718#true} assume true; {5718#true} is VALID [2022-04-08 11:06:18,777 INFO L290 TraceCheckUtils]: 8: Hoare triple {5718#true} assume !(0 == ~cond); {5718#true} is VALID [2022-04-08 11:06:18,777 INFO L290 TraceCheckUtils]: 7: Hoare triple {5718#true} ~cond := #in~cond; {5718#true} is VALID [2022-04-08 11:06:18,777 INFO L272 TraceCheckUtils]: 6: Hoare triple {5718#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {5718#true} is VALID [2022-04-08 11:06:18,777 INFO L290 TraceCheckUtils]: 5: Hoare triple {5718#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {5718#true} is VALID [2022-04-08 11:06:18,778 INFO L272 TraceCheckUtils]: 4: Hoare triple {5718#true} call #t~ret8 := main(); {5718#true} is VALID [2022-04-08 11:06:18,778 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {5718#true} {5718#true} #69#return; {5718#true} is VALID [2022-04-08 11:06:18,778 INFO L290 TraceCheckUtils]: 2: Hoare triple {5718#true} assume true; {5718#true} is VALID [2022-04-08 11:06:18,778 INFO L290 TraceCheckUtils]: 1: Hoare triple {5718#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {5718#true} is VALID [2022-04-08 11:06:18,778 INFO L272 TraceCheckUtils]: 0: Hoare triple {5718#true} call ULTIMATE.init(); {5718#true} is VALID [2022-04-08 11:06:18,778 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-04-08 11:06:18,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:06:18,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145605598] [2022-04-08 11:06:18,778 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:06:18,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812180999] [2022-04-08 11:06:18,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812180999] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:06:18,779 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:06:18,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 24 [2022-04-08 11:06:18,779 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:06:18,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [154385242] [2022-04-08 11:06:18,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [154385242] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:06:18,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:06:18,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-04-08 11:06:18,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464912475] [2022-04-08 11:06:18,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:06:18,779 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 48 [2022-04-08 11:06:18,780 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:06:18,780 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 16 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:06:18,820 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:06:18,820 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-08 11:06:18,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:06:18,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-08 11:06:18,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2022-04-08 11:06:18,821 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand has 16 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:06:19,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:06:19,850 INFO L93 Difference]: Finished difference Result 87 states and 96 transitions. [2022-04-08 11:06:19,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-08 11:06:19,850 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 48 [2022-04-08 11:06:19,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:06:19,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:06:19,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 61 transitions. [2022-04-08 11:06:19,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:06:19,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 61 transitions. [2022-04-08 11:06:19,852 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 16 states and 61 transitions. [2022-04-08 11:06:19,904 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:06:19,905 INFO L225 Difference]: With dead ends: 87 [2022-04-08 11:06:19,905 INFO L226 Difference]: Without dead ends: 79 [2022-04-08 11:06:19,906 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=693, Unknown=0, NotChecked=0, Total=812 [2022-04-08 11:06:19,906 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 20 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-08 11:06:19,906 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 211 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-08 11:06:19,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-04-08 11:06:20,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 73. [2022-04-08 11:06:20,016 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:06:20,017 INFO L82 GeneralOperation]: Start isEquivalent. First operand 79 states. Second operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-08 11:06:20,017 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-08 11:06:20,017 INFO L87 Difference]: Start difference. First operand 79 states. Second operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-08 11:06:20,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:06:20,018 INFO L93 Difference]: Finished difference Result 79 states and 88 transitions. [2022-04-08 11:06:20,018 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2022-04-08 11:06:20,019 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:06:20,019 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:06:20,019 INFO L74 IsIncluded]: Start isIncluded. First operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand 79 states. [2022-04-08 11:06:20,019 INFO L87 Difference]: Start difference. First operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand 79 states. [2022-04-08 11:06:20,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:06:20,020 INFO L93 Difference]: Finished difference Result 79 states and 88 transitions. [2022-04-08 11:06:20,020 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2022-04-08 11:06:20,020 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:06:20,021 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:06:20,021 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:06:20,021 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:06:20,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-08 11:06:20,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2022-04-08 11:06:20,022 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 48 [2022-04-08 11:06:20,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:06:20,022 INFO L478 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2022-04-08 11:06:20,022 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:06:20,022 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 73 states and 80 transitions. [2022-04-08 11:06:20,165 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 80 edges. 80 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:06:20,165 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2022-04-08 11:06:20,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-08 11:06:20,165 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:06:20,165 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:06:20,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-04-08 11:06:20,365 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-04-08 11:06:20,366 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:06:20,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:06:20,366 INFO L85 PathProgramCache]: Analyzing trace with hash -463038031, now seen corresponding path program 5 times [2022-04-08 11:06:20,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:06:20,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [7554489] [2022-04-08 11:06:20,366 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:06:20,367 INFO L85 PathProgramCache]: Analyzing trace with hash -463038031, now seen corresponding path program 6 times [2022-04-08 11:06:20,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:06:20,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906622811] [2022-04-08 11:06:20,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:06:20,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:06:20,385 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:06:20,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237293793] [2022-04-08 11:06:20,385 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-08 11:06:20,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:06:20,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:06:20,391 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:06:20,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-04-08 11:06:20,431 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-04-08 11:06:20,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:06:20,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 32 conjunts are in the unsatisfiable core [2022-04-08 11:06:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:06:20,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:06:26,291 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:06:32,398 INFO L272 TraceCheckUtils]: 0: Hoare triple {6517#true} call ULTIMATE.init(); {6517#true} is VALID [2022-04-08 11:06:32,399 INFO L290 TraceCheckUtils]: 1: Hoare triple {6517#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {6517#true} is VALID [2022-04-08 11:06:32,399 INFO L290 TraceCheckUtils]: 2: Hoare triple {6517#true} assume true; {6517#true} is VALID [2022-04-08 11:06:32,399 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {6517#true} {6517#true} #69#return; {6517#true} is VALID [2022-04-08 11:06:32,399 INFO L272 TraceCheckUtils]: 4: Hoare triple {6517#true} call #t~ret8 := main(); {6517#true} is VALID [2022-04-08 11:06:32,399 INFO L290 TraceCheckUtils]: 5: Hoare triple {6517#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {6517#true} is VALID [2022-04-08 11:06:32,399 INFO L272 TraceCheckUtils]: 6: Hoare triple {6517#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {6517#true} is VALID [2022-04-08 11:06:32,399 INFO L290 TraceCheckUtils]: 7: Hoare triple {6517#true} ~cond := #in~cond; {6517#true} is VALID [2022-04-08 11:06:32,399 INFO L290 TraceCheckUtils]: 8: Hoare triple {6517#true} assume !(0 == ~cond); {6517#true} is VALID [2022-04-08 11:06:32,399 INFO L290 TraceCheckUtils]: 9: Hoare triple {6517#true} assume true; {6517#true} is VALID [2022-04-08 11:06:32,399 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {6517#true} {6517#true} #61#return; {6517#true} is VALID [2022-04-08 11:06:32,399 INFO L290 TraceCheckUtils]: 11: Hoare triple {6517#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {6517#true} is VALID [2022-04-08 11:06:32,400 INFO L272 TraceCheckUtils]: 12: Hoare triple {6517#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {6517#true} is VALID [2022-04-08 11:06:32,400 INFO L290 TraceCheckUtils]: 13: Hoare triple {6517#true} ~cond := #in~cond; {6517#true} is VALID [2022-04-08 11:06:32,400 INFO L290 TraceCheckUtils]: 14: Hoare triple {6517#true} assume !(0 == ~cond); {6517#true} is VALID [2022-04-08 11:06:32,400 INFO L290 TraceCheckUtils]: 15: Hoare triple {6517#true} assume true; {6517#true} is VALID [2022-04-08 11:06:32,400 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {6517#true} {6517#true} #63#return; {6517#true} is VALID [2022-04-08 11:06:32,400 INFO L290 TraceCheckUtils]: 17: Hoare triple {6517#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {6573#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} is VALID [2022-04-08 11:06:32,401 INFO L290 TraceCheckUtils]: 18: Hoare triple {6573#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {6573#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} is VALID [2022-04-08 11:06:32,401 INFO L272 TraceCheckUtils]: 19: Hoare triple {6573#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {6517#true} is VALID [2022-04-08 11:06:32,401 INFO L290 TraceCheckUtils]: 20: Hoare triple {6517#true} ~cond := #in~cond; {6517#true} is VALID [2022-04-08 11:06:32,401 INFO L290 TraceCheckUtils]: 21: Hoare triple {6517#true} assume !(0 == ~cond); {6517#true} is VALID [2022-04-08 11:06:32,401 INFO L290 TraceCheckUtils]: 22: Hoare triple {6517#true} assume true; {6517#true} is VALID [2022-04-08 11:06:32,402 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {6517#true} {6573#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} #65#return; {6573#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} is VALID [2022-04-08 11:06:32,402 INFO L290 TraceCheckUtils]: 24: Hoare triple {6573#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} assume !!(~x~0 <= ~X~0); {6573#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} is VALID [2022-04-08 11:06:32,403 INFO L290 TraceCheckUtils]: 25: Hoare triple {6573#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {6598#(and (= main_~y~0 0) (= (+ main_~X~0 main_~v~0 (* (- 2) main_~Y~0)) (* main_~Y~0 2)))} is VALID [2022-04-08 11:06:32,403 INFO L290 TraceCheckUtils]: 26: Hoare triple {6598#(and (= main_~y~0 0) (= (+ main_~X~0 main_~v~0 (* (- 2) main_~Y~0)) (* main_~Y~0 2)))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {6598#(and (= main_~y~0 0) (= (+ main_~X~0 main_~v~0 (* (- 2) main_~Y~0)) (* main_~Y~0 2)))} is VALID [2022-04-08 11:06:32,403 INFO L290 TraceCheckUtils]: 27: Hoare triple {6598#(and (= main_~y~0 0) (= (+ main_~X~0 main_~v~0 (* (- 2) main_~Y~0)) (* main_~Y~0 2)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {6598#(and (= main_~y~0 0) (= (+ main_~X~0 main_~v~0 (* (- 2) main_~Y~0)) (* main_~Y~0 2)))} is VALID [2022-04-08 11:06:32,403 INFO L272 TraceCheckUtils]: 28: Hoare triple {6598#(and (= main_~y~0 0) (= (+ main_~X~0 main_~v~0 (* (- 2) main_~Y~0)) (* main_~Y~0 2)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {6517#true} is VALID [2022-04-08 11:06:32,404 INFO L290 TraceCheckUtils]: 29: Hoare triple {6517#true} ~cond := #in~cond; {6517#true} is VALID [2022-04-08 11:06:32,404 INFO L290 TraceCheckUtils]: 30: Hoare triple {6517#true} assume !(0 == ~cond); {6517#true} is VALID [2022-04-08 11:06:32,404 INFO L290 TraceCheckUtils]: 31: Hoare triple {6517#true} assume true; {6517#true} is VALID [2022-04-08 11:06:32,404 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {6517#true} {6598#(and (= main_~y~0 0) (= (+ main_~X~0 main_~v~0 (* (- 2) main_~Y~0)) (* main_~Y~0 2)))} #65#return; {6598#(and (= main_~y~0 0) (= (+ main_~X~0 main_~v~0 (* (- 2) main_~Y~0)) (* main_~Y~0 2)))} is VALID [2022-04-08 11:06:32,405 INFO L290 TraceCheckUtils]: 33: Hoare triple {6598#(and (= main_~y~0 0) (= (+ main_~X~0 main_~v~0 (* (- 2) main_~Y~0)) (* main_~Y~0 2)))} assume !!(~x~0 <= ~X~0); {6598#(and (= main_~y~0 0) (= (+ main_~X~0 main_~v~0 (* (- 2) main_~Y~0)) (* main_~Y~0 2)))} is VALID [2022-04-08 11:06:32,405 INFO L290 TraceCheckUtils]: 34: Hoare triple {6598#(and (= main_~y~0 0) (= (+ main_~X~0 main_~v~0 (* (- 2) main_~Y~0)) (* main_~Y~0 2)))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {6626#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:06:32,406 INFO L290 TraceCheckUtils]: 35: Hoare triple {6626#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {6626#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:06:32,406 INFO L290 TraceCheckUtils]: 36: Hoare triple {6626#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {6633#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~y~0 0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} is VALID [2022-04-08 11:06:32,406 INFO L272 TraceCheckUtils]: 37: Hoare triple {6633#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~y~0 0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {6517#true} is VALID [2022-04-08 11:06:32,406 INFO L290 TraceCheckUtils]: 38: Hoare triple {6517#true} ~cond := #in~cond; {6640#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:06:32,407 INFO L290 TraceCheckUtils]: 39: Hoare triple {6640#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {6644#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:06:32,407 INFO L290 TraceCheckUtils]: 40: Hoare triple {6644#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {6644#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:06:32,408 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {6644#(not (= |__VERIFIER_assert_#in~cond| 0))} {6633#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~y~0 0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} #65#return; {6651#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (= main_~y~0 0))} is VALID [2022-04-08 11:06:32,409 INFO L290 TraceCheckUtils]: 42: Hoare triple {6651#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (= main_~y~0 0))} assume !!(~x~0 <= ~X~0); {6651#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (= main_~y~0 0))} is VALID [2022-04-08 11:06:32,409 INFO L290 TraceCheckUtils]: 43: Hoare triple {6651#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (= main_~y~0 0))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {6658#(and (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) (* main_~Y~0 6))) (= main_~y~0 0) (= main_~v~0 (+ (* main_~Y~0 8) (* (- 1) main_~X~0))))} is VALID [2022-04-08 11:06:32,414 INFO L290 TraceCheckUtils]: 44: Hoare triple {6658#(and (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) (* main_~Y~0 6))) (= main_~y~0 0) (= main_~v~0 (+ (* main_~Y~0 8) (* (- 1) main_~X~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {6662#(and (= main_~y~0 0) (= (+ (* main_~Y~0 2) (* 2 (* (+ (- 1) main_~x~0) main_~Y~0))) (+ (* (* main_~X~0 main_~y~0) 2) (* main_~Y~0 6))) (= main_~v~0 (+ (* main_~Y~0 8) (* (- 1) main_~X~0))))} is VALID [2022-04-08 11:06:32,416 INFO L290 TraceCheckUtils]: 45: Hoare triple {6662#(and (= main_~y~0 0) (= (+ (* main_~Y~0 2) (* 2 (* (+ (- 1) main_~x~0) main_~Y~0))) (+ (* (* main_~X~0 main_~y~0) 2) (* main_~Y~0 6))) (= main_~v~0 (+ (* main_~Y~0 8) (* (- 1) main_~X~0))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {6666#(and (= main_~xy~0 0) (= (* main_~Y~0 (div (* main_~Y~0 3) main_~Y~0)) main_~yx~0) (= main_~v~0 (+ (* main_~Y~0 8) (* (- 1) main_~X~0))))} is VALID [2022-04-08 11:06:32,419 INFO L272 TraceCheckUtils]: 46: Hoare triple {6666#(and (= main_~xy~0 0) (= (* main_~Y~0 (div (* main_~Y~0 3) main_~Y~0)) main_~yx~0) (= main_~v~0 (+ (* main_~Y~0 8) (* (- 1) main_~X~0))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {6670#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:06:32,419 INFO L290 TraceCheckUtils]: 47: Hoare triple {6670#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {6674#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:06:32,419 INFO L290 TraceCheckUtils]: 48: Hoare triple {6674#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {6518#false} is VALID [2022-04-08 11:06:32,419 INFO L290 TraceCheckUtils]: 49: Hoare triple {6518#false} assume !false; {6518#false} is VALID [2022-04-08 11:06:32,420 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-08 11:06:32,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:06:36,677 INFO L290 TraceCheckUtils]: 49: Hoare triple {6518#false} assume !false; {6518#false} is VALID [2022-04-08 11:06:36,677 INFO L290 TraceCheckUtils]: 48: Hoare triple {6674#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {6518#false} is VALID [2022-04-08 11:06:36,677 INFO L290 TraceCheckUtils]: 47: Hoare triple {6670#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {6674#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:06:36,678 INFO L272 TraceCheckUtils]: 46: Hoare triple {6690#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {6670#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:06:36,679 INFO L290 TraceCheckUtils]: 45: Hoare triple {6694#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {6690#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} is VALID [2022-04-08 11:06:36,696 INFO L290 TraceCheckUtils]: 44: Hoare triple {6698#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {6694#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:06:36,696 INFO L290 TraceCheckUtils]: 43: Hoare triple {6694#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {6698#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} is VALID [2022-04-08 11:06:36,697 INFO L290 TraceCheckUtils]: 42: Hoare triple {6694#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !!(~x~0 <= ~X~0); {6694#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:06:36,698 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {6644#(not (= |__VERIFIER_assert_#in~cond| 0))} {6708#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} #65#return; {6694#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:06:36,698 INFO L290 TraceCheckUtils]: 40: Hoare triple {6644#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {6644#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:06:36,698 INFO L290 TraceCheckUtils]: 39: Hoare triple {6718#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} assume !(0 == ~cond); {6644#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:06:36,698 INFO L290 TraceCheckUtils]: 38: Hoare triple {6517#true} ~cond := #in~cond; {6718#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 11:06:36,698 INFO L272 TraceCheckUtils]: 37: Hoare triple {6708#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {6517#true} is VALID [2022-04-08 11:06:36,699 INFO L290 TraceCheckUtils]: 36: Hoare triple {6517#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {6708#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} is VALID [2022-04-08 11:06:36,699 INFO L290 TraceCheckUtils]: 35: Hoare triple {6517#true} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {6517#true} is VALID [2022-04-08 11:06:36,699 INFO L290 TraceCheckUtils]: 34: Hoare triple {6517#true} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {6517#true} is VALID [2022-04-08 11:06:36,699 INFO L290 TraceCheckUtils]: 33: Hoare triple {6517#true} assume !!(~x~0 <= ~X~0); {6517#true} is VALID [2022-04-08 11:06:36,699 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {6517#true} {6517#true} #65#return; {6517#true} is VALID [2022-04-08 11:06:36,700 INFO L290 TraceCheckUtils]: 31: Hoare triple {6517#true} assume true; {6517#true} is VALID [2022-04-08 11:06:36,700 INFO L290 TraceCheckUtils]: 30: Hoare triple {6517#true} assume !(0 == ~cond); {6517#true} is VALID [2022-04-08 11:06:36,700 INFO L290 TraceCheckUtils]: 29: Hoare triple {6517#true} ~cond := #in~cond; {6517#true} is VALID [2022-04-08 11:06:36,700 INFO L272 TraceCheckUtils]: 28: Hoare triple {6517#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {6517#true} is VALID [2022-04-08 11:06:36,700 INFO L290 TraceCheckUtils]: 27: Hoare triple {6517#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {6517#true} is VALID [2022-04-08 11:06:36,700 INFO L290 TraceCheckUtils]: 26: Hoare triple {6517#true} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {6517#true} is VALID [2022-04-08 11:06:36,700 INFO L290 TraceCheckUtils]: 25: Hoare triple {6517#true} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {6517#true} is VALID [2022-04-08 11:06:36,700 INFO L290 TraceCheckUtils]: 24: Hoare triple {6517#true} assume !!(~x~0 <= ~X~0); {6517#true} is VALID [2022-04-08 11:06:36,700 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {6517#true} {6517#true} #65#return; {6517#true} is VALID [2022-04-08 11:06:36,700 INFO L290 TraceCheckUtils]: 22: Hoare triple {6517#true} assume true; {6517#true} is VALID [2022-04-08 11:06:36,700 INFO L290 TraceCheckUtils]: 21: Hoare triple {6517#true} assume !(0 == ~cond); {6517#true} is VALID [2022-04-08 11:06:36,700 INFO L290 TraceCheckUtils]: 20: Hoare triple {6517#true} ~cond := #in~cond; {6517#true} is VALID [2022-04-08 11:06:36,700 INFO L272 TraceCheckUtils]: 19: Hoare triple {6517#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {6517#true} is VALID [2022-04-08 11:06:36,701 INFO L290 TraceCheckUtils]: 18: Hoare triple {6517#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {6517#true} is VALID [2022-04-08 11:06:36,701 INFO L290 TraceCheckUtils]: 17: Hoare triple {6517#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {6517#true} is VALID [2022-04-08 11:06:36,701 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {6517#true} {6517#true} #63#return; {6517#true} is VALID [2022-04-08 11:06:36,701 INFO L290 TraceCheckUtils]: 15: Hoare triple {6517#true} assume true; {6517#true} is VALID [2022-04-08 11:06:36,701 INFO L290 TraceCheckUtils]: 14: Hoare triple {6517#true} assume !(0 == ~cond); {6517#true} is VALID [2022-04-08 11:06:36,701 INFO L290 TraceCheckUtils]: 13: Hoare triple {6517#true} ~cond := #in~cond; {6517#true} is VALID [2022-04-08 11:06:36,701 INFO L272 TraceCheckUtils]: 12: Hoare triple {6517#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {6517#true} is VALID [2022-04-08 11:06:36,701 INFO L290 TraceCheckUtils]: 11: Hoare triple {6517#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {6517#true} is VALID [2022-04-08 11:06:36,701 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {6517#true} {6517#true} #61#return; {6517#true} is VALID [2022-04-08 11:06:36,701 INFO L290 TraceCheckUtils]: 9: Hoare triple {6517#true} assume true; {6517#true} is VALID [2022-04-08 11:06:36,701 INFO L290 TraceCheckUtils]: 8: Hoare triple {6517#true} assume !(0 == ~cond); {6517#true} is VALID [2022-04-08 11:06:36,701 INFO L290 TraceCheckUtils]: 7: Hoare triple {6517#true} ~cond := #in~cond; {6517#true} is VALID [2022-04-08 11:06:36,701 INFO L272 TraceCheckUtils]: 6: Hoare triple {6517#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {6517#true} is VALID [2022-04-08 11:06:36,701 INFO L290 TraceCheckUtils]: 5: Hoare triple {6517#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {6517#true} is VALID [2022-04-08 11:06:36,702 INFO L272 TraceCheckUtils]: 4: Hoare triple {6517#true} call #t~ret8 := main(); {6517#true} is VALID [2022-04-08 11:06:36,702 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {6517#true} {6517#true} #69#return; {6517#true} is VALID [2022-04-08 11:06:36,702 INFO L290 TraceCheckUtils]: 2: Hoare triple {6517#true} assume true; {6517#true} is VALID [2022-04-08 11:06:36,702 INFO L290 TraceCheckUtils]: 1: Hoare triple {6517#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {6517#true} is VALID [2022-04-08 11:06:36,702 INFO L272 TraceCheckUtils]: 0: Hoare triple {6517#true} call ULTIMATE.init(); {6517#true} is VALID [2022-04-08 11:06:36,702 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-04-08 11:06:36,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:06:36,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906622811] [2022-04-08 11:06:36,702 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:06:36,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237293793] [2022-04-08 11:06:36,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237293793] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:06:36,703 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:06:36,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 19 [2022-04-08 11:06:36,703 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:06:36,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [7554489] [2022-04-08 11:06:36,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [7554489] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:06:36,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:06:36,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-08 11:06:36,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924137077] [2022-04-08 11:06:36,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:06:36,704 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 2.5) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 50 [2022-04-08 11:06:36,704 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:06:36,704 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 14 states, 12 states have (on average 2.5) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:06:36,746 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:06:36,746 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-08 11:06:36,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:06:36,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-08 11:06:36,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-04-08 11:06:36,747 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand has 14 states, 12 states have (on average 2.5) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:06:38,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:06:38,140 INFO L93 Difference]: Finished difference Result 88 states and 98 transitions. [2022-04-08 11:06:38,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-08 11:06:38,140 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 2.5) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 50 [2022-04-08 11:06:38,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:06:38,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 2.5) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:06:38,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 65 transitions. [2022-04-08 11:06:38,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 2.5) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:06:38,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 65 transitions. [2022-04-08 11:06:38,142 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 14 states and 65 transitions. [2022-04-08 11:06:38,200 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:06:38,202 INFO L225 Difference]: With dead ends: 88 [2022-04-08 11:06:38,202 INFO L226 Difference]: Without dead ends: 84 [2022-04-08 11:06:38,202 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 80 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-04-08 11:06:38,203 INFO L913 BasicCegarLoop]: 29 mSDtfsCounter, 18 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-04-08 11:06:38,203 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 182 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-08 11:06:38,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-04-08 11:06:38,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 75. [2022-04-08 11:06:38,308 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:06:38,308 INFO L82 GeneralOperation]: Start isEquivalent. First operand 84 states. Second operand has 75 states, 54 states have (on average 1.1296296296296295) internal successors, (61), 55 states have internal predecessors, (61), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-08 11:06:38,308 INFO L74 IsIncluded]: Start isIncluded. First operand 84 states. Second operand has 75 states, 54 states have (on average 1.1296296296296295) internal successors, (61), 55 states have internal predecessors, (61), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-08 11:06:38,309 INFO L87 Difference]: Start difference. First operand 84 states. Second operand has 75 states, 54 states have (on average 1.1296296296296295) internal successors, (61), 55 states have internal predecessors, (61), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-08 11:06:38,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:06:38,310 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2022-04-08 11:06:38,310 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2022-04-08 11:06:38,310 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:06:38,310 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:06:38,310 INFO L74 IsIncluded]: Start isIncluded. First operand has 75 states, 54 states have (on average 1.1296296296296295) internal successors, (61), 55 states have internal predecessors, (61), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand 84 states. [2022-04-08 11:06:38,311 INFO L87 Difference]: Start difference. First operand has 75 states, 54 states have (on average 1.1296296296296295) internal successors, (61), 55 states have internal predecessors, (61), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand 84 states. [2022-04-08 11:06:38,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:06:38,312 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2022-04-08 11:06:38,312 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2022-04-08 11:06:38,312 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:06:38,312 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:06:38,312 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:06:38,312 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:06:38,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 54 states have (on average 1.1296296296296295) internal successors, (61), 55 states have internal predecessors, (61), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-08 11:06:38,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2022-04-08 11:06:38,313 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 50 [2022-04-08 11:06:38,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:06:38,314 INFO L478 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2022-04-08 11:06:38,314 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 2.5) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:06:38,314 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 75 states and 83 transitions. [2022-04-08 11:06:38,466 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 83 edges. 83 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:06:38,466 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2022-04-08 11:06:38,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-08 11:06:38,466 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:06:38,466 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:06:38,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-04-08 11:06:38,667 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-04-08 11:06:38,667 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:06:38,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:06:38,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1311969331, now seen corresponding path program 5 times [2022-04-08 11:06:38,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:06:38,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1138051450] [2022-04-08 11:06:38,668 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:06:38,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1311969331, now seen corresponding path program 6 times [2022-04-08 11:06:38,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:06:38,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893175088] [2022-04-08 11:06:38,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:06:38,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:06:38,678 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:06:38,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1858856934] [2022-04-08 11:06:38,678 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-08 11:06:38,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:06:38,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:06:38,682 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:06:38,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-04-08 11:06:38,723 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-04-08 11:06:38,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:06:38,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 45 conjunts are in the unsatisfiable core [2022-04-08 11:06:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:06:38,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:07:00,125 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:07:03,902 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:07:11,719 INFO L272 TraceCheckUtils]: 0: Hoare triple {7337#true} call ULTIMATE.init(); {7337#true} is VALID [2022-04-08 11:07:11,719 INFO L290 TraceCheckUtils]: 1: Hoare triple {7337#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {7337#true} is VALID [2022-04-08 11:07:11,719 INFO L290 TraceCheckUtils]: 2: Hoare triple {7337#true} assume true; {7337#true} is VALID [2022-04-08 11:07:11,720 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {7337#true} {7337#true} #69#return; {7337#true} is VALID [2022-04-08 11:07:11,720 INFO L272 TraceCheckUtils]: 4: Hoare triple {7337#true} call #t~ret8 := main(); {7337#true} is VALID [2022-04-08 11:07:11,720 INFO L290 TraceCheckUtils]: 5: Hoare triple {7337#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {7337#true} is VALID [2022-04-08 11:07:11,720 INFO L272 TraceCheckUtils]: 6: Hoare triple {7337#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {7337#true} is VALID [2022-04-08 11:07:11,720 INFO L290 TraceCheckUtils]: 7: Hoare triple {7337#true} ~cond := #in~cond; {7337#true} is VALID [2022-04-08 11:07:11,720 INFO L290 TraceCheckUtils]: 8: Hoare triple {7337#true} assume !(0 == ~cond); {7337#true} is VALID [2022-04-08 11:07:11,720 INFO L290 TraceCheckUtils]: 9: Hoare triple {7337#true} assume true; {7337#true} is VALID [2022-04-08 11:07:11,720 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {7337#true} {7337#true} #61#return; {7337#true} is VALID [2022-04-08 11:07:11,720 INFO L290 TraceCheckUtils]: 11: Hoare triple {7337#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {7337#true} is VALID [2022-04-08 11:07:11,720 INFO L272 TraceCheckUtils]: 12: Hoare triple {7337#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {7337#true} is VALID [2022-04-08 11:07:11,720 INFO L290 TraceCheckUtils]: 13: Hoare triple {7337#true} ~cond := #in~cond; {7337#true} is VALID [2022-04-08 11:07:11,720 INFO L290 TraceCheckUtils]: 14: Hoare triple {7337#true} assume !(0 == ~cond); {7337#true} is VALID [2022-04-08 11:07:11,720 INFO L290 TraceCheckUtils]: 15: Hoare triple {7337#true} assume true; {7337#true} is VALID [2022-04-08 11:07:11,721 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {7337#true} {7337#true} #63#return; {7337#true} is VALID [2022-04-08 11:07:11,721 INFO L290 TraceCheckUtils]: 17: Hoare triple {7337#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {7393#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} is VALID [2022-04-08 11:07:11,721 INFO L290 TraceCheckUtils]: 18: Hoare triple {7393#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {7393#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} is VALID [2022-04-08 11:07:11,721 INFO L272 TraceCheckUtils]: 19: Hoare triple {7393#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {7337#true} is VALID [2022-04-08 11:07:11,721 INFO L290 TraceCheckUtils]: 20: Hoare triple {7337#true} ~cond := #in~cond; {7337#true} is VALID [2022-04-08 11:07:11,722 INFO L290 TraceCheckUtils]: 21: Hoare triple {7337#true} assume !(0 == ~cond); {7337#true} is VALID [2022-04-08 11:07:11,722 INFO L290 TraceCheckUtils]: 22: Hoare triple {7337#true} assume true; {7337#true} is VALID [2022-04-08 11:07:11,722 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {7337#true} {7393#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} #65#return; {7393#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} is VALID [2022-04-08 11:07:11,722 INFO L290 TraceCheckUtils]: 24: Hoare triple {7393#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} assume !!(~x~0 <= ~X~0); {7393#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} is VALID [2022-04-08 11:07:11,723 INFO L290 TraceCheckUtils]: 25: Hoare triple {7393#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {7418#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} is VALID [2022-04-08 11:07:11,724 INFO L290 TraceCheckUtils]: 26: Hoare triple {7418#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {7418#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} is VALID [2022-04-08 11:07:13,727 WARN L290 TraceCheckUtils]: 27: Hoare triple {7418#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {7425#(and (or (and (= (mod main_~yx~0 main_~Y~0) 0) (not (= main_~Y~0 0))) (= main_~yx~0 0)) (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~y~0 0))} is UNKNOWN [2022-04-08 11:07:13,727 INFO L272 TraceCheckUtils]: 28: Hoare triple {7425#(and (or (and (= (mod main_~yx~0 main_~Y~0) 0) (not (= main_~Y~0 0))) (= main_~yx~0 0)) (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~y~0 0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {7337#true} is VALID [2022-04-08 11:07:13,727 INFO L290 TraceCheckUtils]: 29: Hoare triple {7337#true} ~cond := #in~cond; {7432#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:07:13,728 INFO L290 TraceCheckUtils]: 30: Hoare triple {7432#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {7436#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:07:13,728 INFO L290 TraceCheckUtils]: 31: Hoare triple {7436#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {7436#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:07:13,729 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {7436#(not (= |__VERIFIER_assert_#in~cond| 0))} {7425#(and (or (and (= (mod main_~yx~0 main_~Y~0) 0) (not (= main_~Y~0 0))) (= main_~yx~0 0)) (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~y~0 0))} #65#return; {7418#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} is VALID [2022-04-08 11:07:13,729 INFO L290 TraceCheckUtils]: 33: Hoare triple {7418#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} assume !!(~x~0 <= ~X~0); {7418#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} is VALID [2022-04-08 11:07:13,730 INFO L290 TraceCheckUtils]: 34: Hoare triple {7418#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {7449#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:07:13,730 INFO L290 TraceCheckUtils]: 35: Hoare triple {7449#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {7449#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:07:13,730 INFO L290 TraceCheckUtils]: 36: Hoare triple {7449#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {7456#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~y~0 0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} is VALID [2022-04-08 11:07:13,730 INFO L272 TraceCheckUtils]: 37: Hoare triple {7456#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~y~0 0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {7337#true} is VALID [2022-04-08 11:07:13,731 INFO L290 TraceCheckUtils]: 38: Hoare triple {7337#true} ~cond := #in~cond; {7432#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:07:13,731 INFO L290 TraceCheckUtils]: 39: Hoare triple {7432#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {7436#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:07:13,731 INFO L290 TraceCheckUtils]: 40: Hoare triple {7436#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {7436#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:07:13,732 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {7436#(not (= |__VERIFIER_assert_#in~cond| 0))} {7456#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~y~0 0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} #65#return; {7472#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (= main_~y~0 0))} is VALID [2022-04-08 11:07:13,733 INFO L290 TraceCheckUtils]: 42: Hoare triple {7472#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (= main_~y~0 0))} assume !!(~x~0 <= ~X~0); {7472#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (= main_~y~0 0))} is VALID [2022-04-08 11:07:13,734 INFO L290 TraceCheckUtils]: 43: Hoare triple {7472#(and (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) main_~v~0) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (= main_~y~0 0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {7479#(and (= main_~v~0 (+ (* main_~Y~0 main_~x~0 2) (* (- 1) main_~X~0) (* (- 2) main_~X~0 main_~y~0) (* main_~Y~0 4))) (= (+ (- 1) main_~y~0) 0) (= (+ (* main_~Y~0 main_~x~0 2) main_~X~0 (* main_~Y~0 2) (* (- 2) main_~X~0 main_~y~0)) (+ (* (- 1) main_~X~0) (* main_~Y~0 6))))} is VALID [2022-04-08 11:07:13,739 INFO L290 TraceCheckUtils]: 44: Hoare triple {7479#(and (= main_~v~0 (+ (* main_~Y~0 main_~x~0 2) (* (- 1) main_~X~0) (* (- 2) main_~X~0 main_~y~0) (* main_~Y~0 4))) (= (+ (- 1) main_~y~0) 0) (= (+ (* main_~Y~0 main_~x~0 2) main_~X~0 (* main_~Y~0 2) (* (- 2) main_~X~0 main_~y~0)) (+ (* (- 1) main_~X~0) (* main_~Y~0 6))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {7483#(and (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* (- 1) main_~X~0) (* (- 2) main_~X~0 main_~y~0) (* main_~Y~0 4) (* (+ (- 1) main_~x~0) main_~Y~0 2))) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) (+ main_~X~0 (* main_~Y~0 2) (* (- 2) main_~X~0 main_~y~0) (* (+ (- 1) main_~x~0) main_~Y~0 2))))} is VALID [2022-04-08 11:07:13,747 INFO L290 TraceCheckUtils]: 45: Hoare triple {7483#(and (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* (- 1) main_~X~0) (* (- 2) main_~X~0 main_~y~0) (* main_~Y~0 4) (* (+ (- 1) main_~x~0) main_~Y~0 2))) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) (+ main_~X~0 (* main_~Y~0 2) (* (- 2) main_~X~0 main_~y~0) (* (+ (- 1) main_~x~0) main_~Y~0 2))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {7487#(and (or (and (= (+ (div (+ (* main_~X~0 (- 3)) (* (- 1) main_~v~0)) (- 2)) (* (- 1) main_~Y~0)) 0) (= (mod (+ main_~X~0 main_~v~0) 2) 0) (= main_~yx~0 0) (= main_~Y~0 0)) (and (= (mod (+ main_~X~0 main_~v~0) 2) 0) (= (* (div (+ (div (+ (* main_~X~0 (- 3)) (* (- 1) main_~v~0)) (- 2)) (* (- 1) main_~Y~0)) main_~Y~0) main_~Y~0) main_~yx~0) (not (= main_~Y~0 0)) (= (mod (+ (div (+ (* main_~X~0 (- 3)) (* (- 1) main_~v~0)) (- 2)) (* (- 1) main_~Y~0)) main_~Y~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) (+ (* (- 1) main_~X~0) (* main_~Y~0 2 (+ (div (+ (div (+ (* main_~X~0 (- 3)) (* (- 1) main_~v~0)) (- 2)) (* (- 1) main_~Y~0)) main_~Y~0) (- 1))) (* main_~Y~0 2))))) (= main_~X~0 main_~xy~0))} is VALID [2022-04-08 11:07:13,749 INFO L272 TraceCheckUtils]: 46: Hoare triple {7487#(and (or (and (= (+ (div (+ (* main_~X~0 (- 3)) (* (- 1) main_~v~0)) (- 2)) (* (- 1) main_~Y~0)) 0) (= (mod (+ main_~X~0 main_~v~0) 2) 0) (= main_~yx~0 0) (= main_~Y~0 0)) (and (= (mod (+ main_~X~0 main_~v~0) 2) 0) (= (* (div (+ (div (+ (* main_~X~0 (- 3)) (* (- 1) main_~v~0)) (- 2)) (* (- 1) main_~Y~0)) main_~Y~0) main_~Y~0) main_~yx~0) (not (= main_~Y~0 0)) (= (mod (+ (div (+ (* main_~X~0 (- 3)) (* (- 1) main_~v~0)) (- 2)) (* (- 1) main_~Y~0)) main_~Y~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 6)) (+ (* (- 1) main_~X~0) (* main_~Y~0 2 (+ (div (+ (div (+ (* main_~X~0 (- 3)) (* (- 1) main_~v~0)) (- 2)) (* (- 1) main_~Y~0)) main_~Y~0) (- 1))) (* main_~Y~0 2))))) (= main_~X~0 main_~xy~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {7491#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:07:13,750 INFO L290 TraceCheckUtils]: 47: Hoare triple {7491#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {7495#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:07:13,750 INFO L290 TraceCheckUtils]: 48: Hoare triple {7495#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {7338#false} is VALID [2022-04-08 11:07:13,750 INFO L290 TraceCheckUtils]: 49: Hoare triple {7338#false} assume !false; {7338#false} is VALID [2022-04-08 11:07:13,750 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 10 proven. 23 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-08 11:07:13,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:07:17,405 INFO L290 TraceCheckUtils]: 49: Hoare triple {7338#false} assume !false; {7338#false} is VALID [2022-04-08 11:07:17,406 INFO L290 TraceCheckUtils]: 48: Hoare triple {7495#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {7338#false} is VALID [2022-04-08 11:07:17,406 INFO L290 TraceCheckUtils]: 47: Hoare triple {7491#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {7495#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:07:17,407 INFO L272 TraceCheckUtils]: 46: Hoare triple {7511#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {7491#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:07:17,407 INFO L290 TraceCheckUtils]: 45: Hoare triple {7515#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {7511#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} is VALID [2022-04-08 11:07:17,409 INFO L290 TraceCheckUtils]: 44: Hoare triple {7519#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {7515#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:07:17,411 INFO L290 TraceCheckUtils]: 43: Hoare triple {7515#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {7519#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} is VALID [2022-04-08 11:07:17,411 INFO L290 TraceCheckUtils]: 42: Hoare triple {7515#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !!(~x~0 <= ~X~0); {7515#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:07:17,412 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {7436#(not (= |__VERIFIER_assert_#in~cond| 0))} {7529#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} #65#return; {7515#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:07:17,412 INFO L290 TraceCheckUtils]: 40: Hoare triple {7436#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {7436#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:07:17,412 INFO L290 TraceCheckUtils]: 39: Hoare triple {7539#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} assume !(0 == ~cond); {7436#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:07:17,413 INFO L290 TraceCheckUtils]: 38: Hoare triple {7337#true} ~cond := #in~cond; {7539#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 11:07:17,413 INFO L272 TraceCheckUtils]: 37: Hoare triple {7529#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {7337#true} is VALID [2022-04-08 11:07:17,414 INFO L290 TraceCheckUtils]: 36: Hoare triple {7337#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {7529#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} is VALID [2022-04-08 11:07:17,414 INFO L290 TraceCheckUtils]: 35: Hoare triple {7337#true} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {7337#true} is VALID [2022-04-08 11:07:17,414 INFO L290 TraceCheckUtils]: 34: Hoare triple {7337#true} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {7337#true} is VALID [2022-04-08 11:07:17,414 INFO L290 TraceCheckUtils]: 33: Hoare triple {7337#true} assume !!(~x~0 <= ~X~0); {7337#true} is VALID [2022-04-08 11:07:17,414 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {7337#true} {7337#true} #65#return; {7337#true} is VALID [2022-04-08 11:07:17,414 INFO L290 TraceCheckUtils]: 31: Hoare triple {7337#true} assume true; {7337#true} is VALID [2022-04-08 11:07:17,414 INFO L290 TraceCheckUtils]: 30: Hoare triple {7337#true} assume !(0 == ~cond); {7337#true} is VALID [2022-04-08 11:07:17,414 INFO L290 TraceCheckUtils]: 29: Hoare triple {7337#true} ~cond := #in~cond; {7337#true} is VALID [2022-04-08 11:07:17,414 INFO L272 TraceCheckUtils]: 28: Hoare triple {7337#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {7337#true} is VALID [2022-04-08 11:07:17,414 INFO L290 TraceCheckUtils]: 27: Hoare triple {7337#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {7337#true} is VALID [2022-04-08 11:07:17,414 INFO L290 TraceCheckUtils]: 26: Hoare triple {7337#true} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {7337#true} is VALID [2022-04-08 11:07:17,414 INFO L290 TraceCheckUtils]: 25: Hoare triple {7337#true} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {7337#true} is VALID [2022-04-08 11:07:17,414 INFO L290 TraceCheckUtils]: 24: Hoare triple {7337#true} assume !!(~x~0 <= ~X~0); {7337#true} is VALID [2022-04-08 11:07:17,414 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {7337#true} {7337#true} #65#return; {7337#true} is VALID [2022-04-08 11:07:17,415 INFO L290 TraceCheckUtils]: 22: Hoare triple {7337#true} assume true; {7337#true} is VALID [2022-04-08 11:07:17,415 INFO L290 TraceCheckUtils]: 21: Hoare triple {7337#true} assume !(0 == ~cond); {7337#true} is VALID [2022-04-08 11:07:17,415 INFO L290 TraceCheckUtils]: 20: Hoare triple {7337#true} ~cond := #in~cond; {7337#true} is VALID [2022-04-08 11:07:17,415 INFO L272 TraceCheckUtils]: 19: Hoare triple {7337#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {7337#true} is VALID [2022-04-08 11:07:17,415 INFO L290 TraceCheckUtils]: 18: Hoare triple {7337#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {7337#true} is VALID [2022-04-08 11:07:17,415 INFO L290 TraceCheckUtils]: 17: Hoare triple {7337#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {7337#true} is VALID [2022-04-08 11:07:17,415 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {7337#true} {7337#true} #63#return; {7337#true} is VALID [2022-04-08 11:07:17,415 INFO L290 TraceCheckUtils]: 15: Hoare triple {7337#true} assume true; {7337#true} is VALID [2022-04-08 11:07:17,415 INFO L290 TraceCheckUtils]: 14: Hoare triple {7337#true} assume !(0 == ~cond); {7337#true} is VALID [2022-04-08 11:07:17,415 INFO L290 TraceCheckUtils]: 13: Hoare triple {7337#true} ~cond := #in~cond; {7337#true} is VALID [2022-04-08 11:07:17,415 INFO L272 TraceCheckUtils]: 12: Hoare triple {7337#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {7337#true} is VALID [2022-04-08 11:07:17,415 INFO L290 TraceCheckUtils]: 11: Hoare triple {7337#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {7337#true} is VALID [2022-04-08 11:07:17,415 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {7337#true} {7337#true} #61#return; {7337#true} is VALID [2022-04-08 11:07:17,416 INFO L290 TraceCheckUtils]: 9: Hoare triple {7337#true} assume true; {7337#true} is VALID [2022-04-08 11:07:17,416 INFO L290 TraceCheckUtils]: 8: Hoare triple {7337#true} assume !(0 == ~cond); {7337#true} is VALID [2022-04-08 11:07:17,416 INFO L290 TraceCheckUtils]: 7: Hoare triple {7337#true} ~cond := #in~cond; {7337#true} is VALID [2022-04-08 11:07:17,416 INFO L272 TraceCheckUtils]: 6: Hoare triple {7337#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {7337#true} is VALID [2022-04-08 11:07:17,416 INFO L290 TraceCheckUtils]: 5: Hoare triple {7337#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {7337#true} is VALID [2022-04-08 11:07:17,416 INFO L272 TraceCheckUtils]: 4: Hoare triple {7337#true} call #t~ret8 := main(); {7337#true} is VALID [2022-04-08 11:07:17,416 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {7337#true} {7337#true} #69#return; {7337#true} is VALID [2022-04-08 11:07:17,416 INFO L290 TraceCheckUtils]: 2: Hoare triple {7337#true} assume true; {7337#true} is VALID [2022-04-08 11:07:17,416 INFO L290 TraceCheckUtils]: 1: Hoare triple {7337#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {7337#true} is VALID [2022-04-08 11:07:17,416 INFO L272 TraceCheckUtils]: 0: Hoare triple {7337#true} call ULTIMATE.init(); {7337#true} is VALID [2022-04-08 11:07:17,416 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-04-08 11:07:17,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:07:17,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893175088] [2022-04-08 11:07:17,417 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:07:17,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858856934] [2022-04-08 11:07:17,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858856934] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:07:17,417 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:07:17,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10] total 20 [2022-04-08 11:07:17,417 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:07:17,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1138051450] [2022-04-08 11:07:17,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1138051450] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:07:17,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:07:17,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-08 11:07:17,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343256867] [2022-04-08 11:07:17,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:07:17,418 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 2.5) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 50 [2022-04-08 11:07:17,418 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:07:17,418 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 15 states, 12 states have (on average 2.5) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:07:19,471 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 43 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2022-04-08 11:07:19,471 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-08 11:07:19,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:07:19,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-08 11:07:19,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-04-08 11:07:19,472 INFO L87 Difference]: Start difference. First operand 75 states and 83 transitions. Second operand has 15 states, 12 states have (on average 2.5) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:07:21,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:07:21,723 INFO L93 Difference]: Finished difference Result 88 states and 98 transitions. [2022-04-08 11:07:21,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-08 11:07:21,723 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 2.5) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 50 [2022-04-08 11:07:21,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:07:21,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 2.5) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:07:21,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 65 transitions. [2022-04-08 11:07:21,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 2.5) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:07:21,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 65 transitions. [2022-04-08 11:07:21,725 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 15 states and 65 transitions. [2022-04-08 11:07:23,806 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 64 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2022-04-08 11:07:23,807 INFO L225 Difference]: With dead ends: 88 [2022-04-08 11:07:23,807 INFO L226 Difference]: Without dead ends: 86 [2022-04-08 11:07:23,808 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 78 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2022-04-08 11:07:23,808 INFO L913 BasicCegarLoop]: 29 mSDtfsCounter, 19 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-08 11:07:23,808 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 203 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-08 11:07:23,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-04-08 11:07:23,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2022-04-08 11:07:23,925 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:07:23,926 INFO L82 GeneralOperation]: Start isEquivalent. First operand 86 states. Second operand has 82 states, 59 states have (on average 1.11864406779661) internal successors, (66), 61 states have internal predecessors, (66), 13 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-04-08 11:07:23,926 INFO L74 IsIncluded]: Start isIncluded. First operand 86 states. Second operand has 82 states, 59 states have (on average 1.11864406779661) internal successors, (66), 61 states have internal predecessors, (66), 13 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-04-08 11:07:23,926 INFO L87 Difference]: Start difference. First operand 86 states. Second operand has 82 states, 59 states have (on average 1.11864406779661) internal successors, (66), 61 states have internal predecessors, (66), 13 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-04-08 11:07:23,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:07:23,927 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2022-04-08 11:07:23,927 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2022-04-08 11:07:23,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:07:23,928 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:07:23,928 INFO L74 IsIncluded]: Start isIncluded. First operand has 82 states, 59 states have (on average 1.11864406779661) internal successors, (66), 61 states have internal predecessors, (66), 13 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) Second operand 86 states. [2022-04-08 11:07:23,928 INFO L87 Difference]: Start difference. First operand has 82 states, 59 states have (on average 1.11864406779661) internal successors, (66), 61 states have internal predecessors, (66), 13 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) Second operand 86 states. [2022-04-08 11:07:23,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:07:23,929 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2022-04-08 11:07:23,929 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2022-04-08 11:07:23,929 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:07:23,930 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:07:23,930 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:07:23,930 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:07:23,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 59 states have (on average 1.11864406779661) internal successors, (66), 61 states have internal predecessors, (66), 13 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-04-08 11:07:23,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2022-04-08 11:07:23,931 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 50 [2022-04-08 11:07:23,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:07:23,931 INFO L478 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2022-04-08 11:07:23,931 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 2.5) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:07:23,931 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 82 states and 90 transitions. [2022-04-08 11:07:24,103 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 90 edges. 90 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:07:24,103 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2022-04-08 11:07:24,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-08 11:07:24,104 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:07:24,104 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:07:24,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-04-08 11:07:24,315 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-04-08 11:07:24,317 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:07:24,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:07:24,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1484106385, now seen corresponding path program 7 times [2022-04-08 11:07:24,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:07:24,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [616519599] [2022-04-08 11:07:24,318 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:07:24,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1484106385, now seen corresponding path program 8 times [2022-04-08 11:07:24,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:07:24,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65288069] [2022-04-08 11:07:24,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:07:24,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:07:24,331 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:07:24,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28574752] [2022-04-08 11:07:24,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-08 11:07:24,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:07:24,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:07:24,333 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:07:24,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-04-08 11:07:24,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-08 11:07:24,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:07:24,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 41 conjunts are in the unsatisfiable core [2022-04-08 11:07:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:07:24,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:07:35,669 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:07:41,940 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:07:51,454 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:08:01,149 INFO L272 TraceCheckUtils]: 0: Hoare triple {8176#true} call ULTIMATE.init(); {8176#true} is VALID [2022-04-08 11:08:01,149 INFO L290 TraceCheckUtils]: 1: Hoare triple {8176#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {8176#true} is VALID [2022-04-08 11:08:01,149 INFO L290 TraceCheckUtils]: 2: Hoare triple {8176#true} assume true; {8176#true} is VALID [2022-04-08 11:08:01,149 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {8176#true} {8176#true} #69#return; {8176#true} is VALID [2022-04-08 11:08:01,150 INFO L272 TraceCheckUtils]: 4: Hoare triple {8176#true} call #t~ret8 := main(); {8176#true} is VALID [2022-04-08 11:08:01,150 INFO L290 TraceCheckUtils]: 5: Hoare triple {8176#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {8176#true} is VALID [2022-04-08 11:08:01,150 INFO L272 TraceCheckUtils]: 6: Hoare triple {8176#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {8176#true} is VALID [2022-04-08 11:08:01,150 INFO L290 TraceCheckUtils]: 7: Hoare triple {8176#true} ~cond := #in~cond; {8176#true} is VALID [2022-04-08 11:08:01,150 INFO L290 TraceCheckUtils]: 8: Hoare triple {8176#true} assume !(0 == ~cond); {8176#true} is VALID [2022-04-08 11:08:01,150 INFO L290 TraceCheckUtils]: 9: Hoare triple {8176#true} assume true; {8176#true} is VALID [2022-04-08 11:08:01,150 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {8176#true} {8176#true} #61#return; {8176#true} is VALID [2022-04-08 11:08:01,150 INFO L290 TraceCheckUtils]: 11: Hoare triple {8176#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {8176#true} is VALID [2022-04-08 11:08:01,150 INFO L272 TraceCheckUtils]: 12: Hoare triple {8176#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {8176#true} is VALID [2022-04-08 11:08:01,150 INFO L290 TraceCheckUtils]: 13: Hoare triple {8176#true} ~cond := #in~cond; {8176#true} is VALID [2022-04-08 11:08:01,150 INFO L290 TraceCheckUtils]: 14: Hoare triple {8176#true} assume !(0 == ~cond); {8176#true} is VALID [2022-04-08 11:08:01,150 INFO L290 TraceCheckUtils]: 15: Hoare triple {8176#true} assume true; {8176#true} is VALID [2022-04-08 11:08:01,150 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {8176#true} {8176#true} #63#return; {8176#true} is VALID [2022-04-08 11:08:01,151 INFO L290 TraceCheckUtils]: 17: Hoare triple {8176#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {8232#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} is VALID [2022-04-08 11:08:01,151 INFO L290 TraceCheckUtils]: 18: Hoare triple {8232#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {8232#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} is VALID [2022-04-08 11:08:01,151 INFO L272 TraceCheckUtils]: 19: Hoare triple {8232#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {8176#true} is VALID [2022-04-08 11:08:01,151 INFO L290 TraceCheckUtils]: 20: Hoare triple {8176#true} ~cond := #in~cond; {8176#true} is VALID [2022-04-08 11:08:01,151 INFO L290 TraceCheckUtils]: 21: Hoare triple {8176#true} assume !(0 == ~cond); {8176#true} is VALID [2022-04-08 11:08:01,151 INFO L290 TraceCheckUtils]: 22: Hoare triple {8176#true} assume true; {8176#true} is VALID [2022-04-08 11:08:01,152 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {8176#true} {8232#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} #65#return; {8232#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} is VALID [2022-04-08 11:08:01,152 INFO L290 TraceCheckUtils]: 24: Hoare triple {8232#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} assume !!(~x~0 <= ~X~0); {8232#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} is VALID [2022-04-08 11:08:01,153 INFO L290 TraceCheckUtils]: 25: Hoare triple {8232#(and (= (+ main_~X~0 main_~v~0) (* main_~Y~0 2)) (= main_~y~0 0))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {8257#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} is VALID [2022-04-08 11:08:01,153 INFO L290 TraceCheckUtils]: 26: Hoare triple {8257#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {8257#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} is VALID [2022-04-08 11:08:01,154 INFO L290 TraceCheckUtils]: 27: Hoare triple {8257#(and (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {8264#(and (= main_~xy~0 0) (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))))} is VALID [2022-04-08 11:08:01,154 INFO L272 TraceCheckUtils]: 28: Hoare triple {8264#(and (= main_~xy~0 0) (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {8176#true} is VALID [2022-04-08 11:08:01,154 INFO L290 TraceCheckUtils]: 29: Hoare triple {8176#true} ~cond := #in~cond; {8271#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:08:01,154 INFO L290 TraceCheckUtils]: 30: Hoare triple {8271#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {8275#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:08:01,159 INFO L290 TraceCheckUtils]: 31: Hoare triple {8275#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {8275#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:08:01,160 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {8275#(not (= |__VERIFIER_assert_#in~cond| 0))} {8264#(and (= main_~xy~0 0) (= main_~v~0 (+ (* (- 1) main_~X~0) (* main_~Y~0 4))))} #65#return; {8282#(= (+ main_~X~0 main_~v~0) (* main_~Y~0 4))} is VALID [2022-04-08 11:08:01,161 INFO L290 TraceCheckUtils]: 33: Hoare triple {8282#(= (+ main_~X~0 main_~v~0) (* main_~Y~0 4))} assume !!(~x~0 <= ~X~0); {8282#(= (+ main_~X~0 main_~v~0) (* main_~Y~0 4))} is VALID [2022-04-08 11:08:01,161 INFO L290 TraceCheckUtils]: 34: Hoare triple {8282#(= (+ main_~X~0 main_~v~0) (* main_~Y~0 4))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {8289#(= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3) (* (- 2) main_~Y~0)))} is VALID [2022-04-08 11:08:01,162 INFO L290 TraceCheckUtils]: 35: Hoare triple {8289#(= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3) (* (- 2) main_~Y~0)))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {8289#(= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3) (* (- 2) main_~Y~0)))} is VALID [2022-04-08 11:08:01,162 INFO L290 TraceCheckUtils]: 36: Hoare triple {8289#(= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3) (* (- 2) main_~Y~0)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {8296#(and (= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3) (* (- 2) main_~Y~0))) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} is VALID [2022-04-08 11:08:01,162 INFO L272 TraceCheckUtils]: 37: Hoare triple {8296#(and (= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3) (* (- 2) main_~Y~0))) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {8176#true} is VALID [2022-04-08 11:08:01,162 INFO L290 TraceCheckUtils]: 38: Hoare triple {8176#true} ~cond := #in~cond; {8271#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:08:01,163 INFO L290 TraceCheckUtils]: 39: Hoare triple {8271#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {8275#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:08:01,163 INFO L290 TraceCheckUtils]: 40: Hoare triple {8275#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {8275#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:08:01,164 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {8275#(not (= |__VERIFIER_assert_#in~cond| 0))} {8296#(and (= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3) (* (- 2) main_~Y~0))) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} #65#return; {8312#(and (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:08:01,165 INFO L290 TraceCheckUtils]: 42: Hoare triple {8312#(and (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3) (* (- 2) main_~Y~0))))} assume !!(~x~0 <= ~X~0); {8312#(and (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:08:01,166 INFO L290 TraceCheckUtils]: 43: Hoare triple {8312#(and (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (= (* main_~Y~0 4) (+ main_~v~0 (* main_~X~0 3) (* (- 2) main_~Y~0))))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {8319#(and (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) (* (- 2) main_~X~0) (* main_~Y~0 6))) (= main_~v~0 (+ (* main_~Y~0 8) (* main_~X~0 (- 3)))))} is VALID [2022-04-08 11:08:01,167 INFO L290 TraceCheckUtils]: 44: Hoare triple {8319#(and (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) (* (- 2) main_~X~0) (* main_~Y~0 6))) (= main_~v~0 (+ (* main_~Y~0 8) (* main_~X~0 (- 3)))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {8323#(and (= main_~v~0 (+ (* main_~Y~0 8) (* main_~X~0 (- 3)))) (= (+ (* main_~Y~0 2) (* 2 (* (+ (- 1) main_~x~0) main_~Y~0))) (+ (* (* main_~X~0 main_~y~0) 2) (* (- 2) main_~X~0) (* main_~Y~0 6))))} is VALID [2022-04-08 11:08:03,170 WARN L290 TraceCheckUtils]: 45: Hoare triple {8323#(and (= main_~v~0 (+ (* main_~Y~0 8) (* main_~X~0 (- 3)))) (= (+ (* main_~Y~0 2) (* 2 (* (+ (- 1) main_~x~0) main_~Y~0))) (+ (* (* main_~X~0 main_~y~0) 2) (* (- 2) main_~X~0) (* main_~Y~0 6))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {8327#(and (or (and (or (and (= (+ (* main_~Y~0 3) (* (div main_~xy~0 main_~X~0) main_~X~0) (* (- 1) main_~X~0)) 0) (= main_~yx~0 0)) (and (= (mod (+ (* main_~Y~0 3) (* (div main_~xy~0 main_~X~0) main_~X~0) (* (- 1) main_~X~0)) main_~Y~0) 0) (= (* (div (+ (* main_~Y~0 3) (* (div main_~xy~0 main_~X~0) main_~X~0) (* (- 1) main_~X~0)) main_~Y~0) main_~Y~0) main_~yx~0) (not (= main_~Y~0 0)))) (not (= main_~X~0 0)) (= (mod main_~xy~0 main_~X~0) 0)) (and (= main_~xy~0 0) (= main_~X~0 0) (or (and (= (* main_~Y~0 3) (+ (* (div main_~yx~0 main_~Y~0) main_~Y~0) main_~X~0)) (= (mod main_~yx~0 main_~Y~0) 0) (not (= main_~Y~0 0))) (and (= main_~yx~0 0) (= main_~Y~0 0))))) (= main_~v~0 (+ (* main_~Y~0 8) (* main_~X~0 (- 3)))))} is UNKNOWN [2022-04-08 11:08:03,173 INFO L272 TraceCheckUtils]: 46: Hoare triple {8327#(and (or (and (or (and (= (+ (* main_~Y~0 3) (* (div main_~xy~0 main_~X~0) main_~X~0) (* (- 1) main_~X~0)) 0) (= main_~yx~0 0)) (and (= (mod (+ (* main_~Y~0 3) (* (div main_~xy~0 main_~X~0) main_~X~0) (* (- 1) main_~X~0)) main_~Y~0) 0) (= (* (div (+ (* main_~Y~0 3) (* (div main_~xy~0 main_~X~0) main_~X~0) (* (- 1) main_~X~0)) main_~Y~0) main_~Y~0) main_~yx~0) (not (= main_~Y~0 0)))) (not (= main_~X~0 0)) (= (mod main_~xy~0 main_~X~0) 0)) (and (= main_~xy~0 0) (= main_~X~0 0) (or (and (= (* main_~Y~0 3) (+ (* (div main_~yx~0 main_~Y~0) main_~Y~0) main_~X~0)) (= (mod main_~yx~0 main_~Y~0) 0) (not (= main_~Y~0 0))) (and (= main_~yx~0 0) (= main_~Y~0 0))))) (= main_~v~0 (+ (* main_~Y~0 8) (* main_~X~0 (- 3)))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {8331#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:08:03,173 INFO L290 TraceCheckUtils]: 47: Hoare triple {8331#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {8335#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:08:03,173 INFO L290 TraceCheckUtils]: 48: Hoare triple {8335#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {8177#false} is VALID [2022-04-08 11:08:03,174 INFO L290 TraceCheckUtils]: 49: Hoare triple {8177#false} assume !false; {8177#false} is VALID [2022-04-08 11:08:03,174 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 10 proven. 23 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-08 11:08:03,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:08:09,035 INFO L290 TraceCheckUtils]: 49: Hoare triple {8177#false} assume !false; {8177#false} is VALID [2022-04-08 11:08:09,036 INFO L290 TraceCheckUtils]: 48: Hoare triple {8335#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {8177#false} is VALID [2022-04-08 11:08:09,036 INFO L290 TraceCheckUtils]: 47: Hoare triple {8331#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {8335#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:08:09,037 INFO L272 TraceCheckUtils]: 46: Hoare triple {8351#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {8331#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:08:09,038 INFO L290 TraceCheckUtils]: 45: Hoare triple {8355#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {8351#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} is VALID [2022-04-08 11:08:09,040 INFO L290 TraceCheckUtils]: 44: Hoare triple {8359#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {8355#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:08:09,040 INFO L290 TraceCheckUtils]: 43: Hoare triple {8355#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {8359#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} is VALID [2022-04-08 11:08:09,041 INFO L290 TraceCheckUtils]: 42: Hoare triple {8355#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !!(~x~0 <= ~X~0); {8355#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:08:09,041 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {8275#(not (= |__VERIFIER_assert_#in~cond| 0))} {8369#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} #65#return; {8355#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:08:09,042 INFO L290 TraceCheckUtils]: 40: Hoare triple {8275#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {8275#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:08:09,042 INFO L290 TraceCheckUtils]: 39: Hoare triple {8379#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} assume !(0 == ~cond); {8275#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:08:09,042 INFO L290 TraceCheckUtils]: 38: Hoare triple {8176#true} ~cond := #in~cond; {8379#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 11:08:09,043 INFO L272 TraceCheckUtils]: 37: Hoare triple {8369#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {8176#true} is VALID [2022-04-08 11:08:09,043 INFO L290 TraceCheckUtils]: 36: Hoare triple {8176#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {8369#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} is VALID [2022-04-08 11:08:09,043 INFO L290 TraceCheckUtils]: 35: Hoare triple {8176#true} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {8176#true} is VALID [2022-04-08 11:08:09,043 INFO L290 TraceCheckUtils]: 34: Hoare triple {8176#true} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {8176#true} is VALID [2022-04-08 11:08:09,044 INFO L290 TraceCheckUtils]: 33: Hoare triple {8176#true} assume !!(~x~0 <= ~X~0); {8176#true} is VALID [2022-04-08 11:08:09,044 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {8176#true} {8176#true} #65#return; {8176#true} is VALID [2022-04-08 11:08:09,044 INFO L290 TraceCheckUtils]: 31: Hoare triple {8176#true} assume true; {8176#true} is VALID [2022-04-08 11:08:09,044 INFO L290 TraceCheckUtils]: 30: Hoare triple {8176#true} assume !(0 == ~cond); {8176#true} is VALID [2022-04-08 11:08:09,044 INFO L290 TraceCheckUtils]: 29: Hoare triple {8176#true} ~cond := #in~cond; {8176#true} is VALID [2022-04-08 11:08:09,044 INFO L272 TraceCheckUtils]: 28: Hoare triple {8176#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {8176#true} is VALID [2022-04-08 11:08:09,044 INFO L290 TraceCheckUtils]: 27: Hoare triple {8176#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {8176#true} is VALID [2022-04-08 11:08:09,044 INFO L290 TraceCheckUtils]: 26: Hoare triple {8176#true} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {8176#true} is VALID [2022-04-08 11:08:09,044 INFO L290 TraceCheckUtils]: 25: Hoare triple {8176#true} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {8176#true} is VALID [2022-04-08 11:08:09,044 INFO L290 TraceCheckUtils]: 24: Hoare triple {8176#true} assume !!(~x~0 <= ~X~0); {8176#true} is VALID [2022-04-08 11:08:09,044 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {8176#true} {8176#true} #65#return; {8176#true} is VALID [2022-04-08 11:08:09,044 INFO L290 TraceCheckUtils]: 22: Hoare triple {8176#true} assume true; {8176#true} is VALID [2022-04-08 11:08:09,044 INFO L290 TraceCheckUtils]: 21: Hoare triple {8176#true} assume !(0 == ~cond); {8176#true} is VALID [2022-04-08 11:08:09,044 INFO L290 TraceCheckUtils]: 20: Hoare triple {8176#true} ~cond := #in~cond; {8176#true} is VALID [2022-04-08 11:08:09,045 INFO L272 TraceCheckUtils]: 19: Hoare triple {8176#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {8176#true} is VALID [2022-04-08 11:08:09,045 INFO L290 TraceCheckUtils]: 18: Hoare triple {8176#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {8176#true} is VALID [2022-04-08 11:08:09,045 INFO L290 TraceCheckUtils]: 17: Hoare triple {8176#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {8176#true} is VALID [2022-04-08 11:08:09,045 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {8176#true} {8176#true} #63#return; {8176#true} is VALID [2022-04-08 11:08:09,045 INFO L290 TraceCheckUtils]: 15: Hoare triple {8176#true} assume true; {8176#true} is VALID [2022-04-08 11:08:09,045 INFO L290 TraceCheckUtils]: 14: Hoare triple {8176#true} assume !(0 == ~cond); {8176#true} is VALID [2022-04-08 11:08:09,045 INFO L290 TraceCheckUtils]: 13: Hoare triple {8176#true} ~cond := #in~cond; {8176#true} is VALID [2022-04-08 11:08:09,045 INFO L272 TraceCheckUtils]: 12: Hoare triple {8176#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {8176#true} is VALID [2022-04-08 11:08:09,045 INFO L290 TraceCheckUtils]: 11: Hoare triple {8176#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {8176#true} is VALID [2022-04-08 11:08:09,045 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {8176#true} {8176#true} #61#return; {8176#true} is VALID [2022-04-08 11:08:09,045 INFO L290 TraceCheckUtils]: 9: Hoare triple {8176#true} assume true; {8176#true} is VALID [2022-04-08 11:08:09,045 INFO L290 TraceCheckUtils]: 8: Hoare triple {8176#true} assume !(0 == ~cond); {8176#true} is VALID [2022-04-08 11:08:09,045 INFO L290 TraceCheckUtils]: 7: Hoare triple {8176#true} ~cond := #in~cond; {8176#true} is VALID [2022-04-08 11:08:09,045 INFO L272 TraceCheckUtils]: 6: Hoare triple {8176#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {8176#true} is VALID [2022-04-08 11:08:09,046 INFO L290 TraceCheckUtils]: 5: Hoare triple {8176#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {8176#true} is VALID [2022-04-08 11:08:09,046 INFO L272 TraceCheckUtils]: 4: Hoare triple {8176#true} call #t~ret8 := main(); {8176#true} is VALID [2022-04-08 11:08:09,046 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {8176#true} {8176#true} #69#return; {8176#true} is VALID [2022-04-08 11:08:09,046 INFO L290 TraceCheckUtils]: 2: Hoare triple {8176#true} assume true; {8176#true} is VALID [2022-04-08 11:08:09,046 INFO L290 TraceCheckUtils]: 1: Hoare triple {8176#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {8176#true} is VALID [2022-04-08 11:08:09,046 INFO L272 TraceCheckUtils]: 0: Hoare triple {8176#true} call ULTIMATE.init(); {8176#true} is VALID [2022-04-08 11:08:09,046 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-04-08 11:08:09,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:08:09,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65288069] [2022-04-08 11:08:09,046 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:08:09,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28574752] [2022-04-08 11:08:09,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28574752] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:08:09,047 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:08:09,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10] total 21 [2022-04-08 11:08:09,047 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:08:09,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [616519599] [2022-04-08 11:08:09,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [616519599] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:08:09,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:08:09,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-04-08 11:08:09,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686407905] [2022-04-08 11:08:09,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:08:09,048 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 50 [2022-04-08 11:08:09,048 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:08:09,048 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 16 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:08:11,089 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 43 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2022-04-08 11:08:11,089 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-08 11:08:11,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:08:11,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-08 11:08:11,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2022-04-08 11:08:11,090 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand has 16 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:08:17,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-08 11:08:19,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-08 11:08:21,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-08 11:08:30,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:08:30,915 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2022-04-08 11:08:30,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-08 11:08:30,916 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 50 [2022-04-08 11:08:30,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:08:30,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:08:30,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 65 transitions. [2022-04-08 11:08:30,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:08:30,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 65 transitions. [2022-04-08 11:08:30,918 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 15 states and 65 transitions. [2022-04-08 11:08:32,982 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 64 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2022-04-08 11:08:32,983 INFO L225 Difference]: With dead ends: 100 [2022-04-08 11:08:32,983 INFO L226 Difference]: Without dead ends: 98 [2022-04-08 11:08:32,984 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2022-04-08 11:08:32,984 INFO L913 BasicCegarLoop]: 26 mSDtfsCounter, 22 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-04-08 11:08:32,984 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 191 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 365 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-04-08 11:08:32,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-04-08 11:08:33,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 87. [2022-04-08 11:08:33,107 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:08:33,107 INFO L82 GeneralOperation]: Start isEquivalent. First operand 98 states. Second operand has 87 states, 63 states have (on average 1.126984126984127) internal successors, (71), 65 states have internal predecessors, (71), 14 states have call successors, (14), 10 states have call predecessors, (14), 9 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2022-04-08 11:08:33,107 INFO L74 IsIncluded]: Start isIncluded. First operand 98 states. Second operand has 87 states, 63 states have (on average 1.126984126984127) internal successors, (71), 65 states have internal predecessors, (71), 14 states have call successors, (14), 10 states have call predecessors, (14), 9 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2022-04-08 11:08:33,107 INFO L87 Difference]: Start difference. First operand 98 states. Second operand has 87 states, 63 states have (on average 1.126984126984127) internal successors, (71), 65 states have internal predecessors, (71), 14 states have call successors, (14), 10 states have call predecessors, (14), 9 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2022-04-08 11:08:33,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:08:33,109 INFO L93 Difference]: Finished difference Result 98 states and 110 transitions. [2022-04-08 11:08:33,109 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2022-04-08 11:08:33,109 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:08:33,109 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:08:33,110 INFO L74 IsIncluded]: Start isIncluded. First operand has 87 states, 63 states have (on average 1.126984126984127) internal successors, (71), 65 states have internal predecessors, (71), 14 states have call successors, (14), 10 states have call predecessors, (14), 9 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) Second operand 98 states. [2022-04-08 11:08:33,110 INFO L87 Difference]: Start difference. First operand has 87 states, 63 states have (on average 1.126984126984127) internal successors, (71), 65 states have internal predecessors, (71), 14 states have call successors, (14), 10 states have call predecessors, (14), 9 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) Second operand 98 states. [2022-04-08 11:08:33,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:08:33,111 INFO L93 Difference]: Finished difference Result 98 states and 110 transitions. [2022-04-08 11:08:33,111 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2022-04-08 11:08:33,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:08:33,111 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:08:33,112 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:08:33,112 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:08:33,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 63 states have (on average 1.126984126984127) internal successors, (71), 65 states have internal predecessors, (71), 14 states have call successors, (14), 10 states have call predecessors, (14), 9 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2022-04-08 11:08:33,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 97 transitions. [2022-04-08 11:08:33,113 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 97 transitions. Word has length 50 [2022-04-08 11:08:33,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:08:33,113 INFO L478 AbstractCegarLoop]: Abstraction has 87 states and 97 transitions. [2022-04-08 11:08:33,113 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:08:33,113 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 87 states and 97 transitions. [2022-04-08 11:08:35,363 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 96 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2022-04-08 11:08:35,364 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2022-04-08 11:08:35,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-08 11:08:35,364 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:08:35,364 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:08:35,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-04-08 11:08:35,567 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-04-08 11:08:35,567 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:08:35,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:08:35,567 INFO L85 PathProgramCache]: Analyzing trace with hash 290900977, now seen corresponding path program 9 times [2022-04-08 11:08:35,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:08:35,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1954112512] [2022-04-08 11:08:35,568 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:08:35,568 INFO L85 PathProgramCache]: Analyzing trace with hash 290900977, now seen corresponding path program 10 times [2022-04-08 11:08:35,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:08:35,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669238822] [2022-04-08 11:08:35,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:08:35,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:08:35,580 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:08:35,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1564266164] [2022-04-08 11:08:35,581 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-08 11:08:35,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:08:35,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:08:35,582 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:08:35,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-04-08 11:08:35,614 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-08 11:08:35,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:08:35,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-08 11:08:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:08:35,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:08:35,928 INFO L272 TraceCheckUtils]: 0: Hoare triple {9076#true} call ULTIMATE.init(); {9076#true} is VALID [2022-04-08 11:08:35,928 INFO L290 TraceCheckUtils]: 1: Hoare triple {9076#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {9076#true} is VALID [2022-04-08 11:08:35,928 INFO L290 TraceCheckUtils]: 2: Hoare triple {9076#true} assume true; {9076#true} is VALID [2022-04-08 11:08:35,928 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {9076#true} {9076#true} #69#return; {9076#true} is VALID [2022-04-08 11:08:35,928 INFO L272 TraceCheckUtils]: 4: Hoare triple {9076#true} call #t~ret8 := main(); {9076#true} is VALID [2022-04-08 11:08:35,928 INFO L290 TraceCheckUtils]: 5: Hoare triple {9076#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {9076#true} is VALID [2022-04-08 11:08:35,929 INFO L272 TraceCheckUtils]: 6: Hoare triple {9076#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {9076#true} is VALID [2022-04-08 11:08:35,929 INFO L290 TraceCheckUtils]: 7: Hoare triple {9076#true} ~cond := #in~cond; {9076#true} is VALID [2022-04-08 11:08:35,929 INFO L290 TraceCheckUtils]: 8: Hoare triple {9076#true} assume !(0 == ~cond); {9076#true} is VALID [2022-04-08 11:08:35,929 INFO L290 TraceCheckUtils]: 9: Hoare triple {9076#true} assume true; {9076#true} is VALID [2022-04-08 11:08:35,929 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {9076#true} {9076#true} #61#return; {9076#true} is VALID [2022-04-08 11:08:35,929 INFO L290 TraceCheckUtils]: 11: Hoare triple {9076#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {9076#true} is VALID [2022-04-08 11:08:35,929 INFO L272 TraceCheckUtils]: 12: Hoare triple {9076#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {9076#true} is VALID [2022-04-08 11:08:35,929 INFO L290 TraceCheckUtils]: 13: Hoare triple {9076#true} ~cond := #in~cond; {9076#true} is VALID [2022-04-08 11:08:35,929 INFO L290 TraceCheckUtils]: 14: Hoare triple {9076#true} assume !(0 == ~cond); {9076#true} is VALID [2022-04-08 11:08:35,929 INFO L290 TraceCheckUtils]: 15: Hoare triple {9076#true} assume true; {9076#true} is VALID [2022-04-08 11:08:35,929 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {9076#true} {9076#true} #63#return; {9076#true} is VALID [2022-04-08 11:08:35,935 INFO L290 TraceCheckUtils]: 17: Hoare triple {9076#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {9132#(<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0))} is VALID [2022-04-08 11:08:35,936 INFO L290 TraceCheckUtils]: 18: Hoare triple {9132#(<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {9132#(<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0))} is VALID [2022-04-08 11:08:35,936 INFO L272 TraceCheckUtils]: 19: Hoare triple {9132#(<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {9076#true} is VALID [2022-04-08 11:08:35,936 INFO L290 TraceCheckUtils]: 20: Hoare triple {9076#true} ~cond := #in~cond; {9076#true} is VALID [2022-04-08 11:08:35,936 INFO L290 TraceCheckUtils]: 21: Hoare triple {9076#true} assume !(0 == ~cond); {9076#true} is VALID [2022-04-08 11:08:35,936 INFO L290 TraceCheckUtils]: 22: Hoare triple {9076#true} assume true; {9076#true} is VALID [2022-04-08 11:08:35,937 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {9076#true} {9132#(<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0))} #65#return; {9132#(<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0))} is VALID [2022-04-08 11:08:35,937 INFO L290 TraceCheckUtils]: 24: Hoare triple {9132#(<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0))} assume !!(~x~0 <= ~X~0); {9132#(<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0))} is VALID [2022-04-08 11:08:35,938 INFO L290 TraceCheckUtils]: 25: Hoare triple {9132#(<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {9157#(and (< (* main_~Y~0 2) main_~X~0) (< main_~v~0 (* main_~Y~0 2)))} is VALID [2022-04-08 11:08:35,938 INFO L290 TraceCheckUtils]: 26: Hoare triple {9157#(and (< (* main_~Y~0 2) main_~X~0) (< main_~v~0 (* main_~Y~0 2)))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {9157#(and (< (* main_~Y~0 2) main_~X~0) (< main_~v~0 (* main_~Y~0 2)))} is VALID [2022-04-08 11:08:35,938 INFO L290 TraceCheckUtils]: 27: Hoare triple {9157#(and (< (* main_~Y~0 2) main_~X~0) (< main_~v~0 (* main_~Y~0 2)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {9157#(and (< (* main_~Y~0 2) main_~X~0) (< main_~v~0 (* main_~Y~0 2)))} is VALID [2022-04-08 11:08:35,939 INFO L272 TraceCheckUtils]: 28: Hoare triple {9157#(and (< (* main_~Y~0 2) main_~X~0) (< main_~v~0 (* main_~Y~0 2)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {9076#true} is VALID [2022-04-08 11:08:35,939 INFO L290 TraceCheckUtils]: 29: Hoare triple {9076#true} ~cond := #in~cond; {9076#true} is VALID [2022-04-08 11:08:35,939 INFO L290 TraceCheckUtils]: 30: Hoare triple {9076#true} assume !(0 == ~cond); {9076#true} is VALID [2022-04-08 11:08:35,939 INFO L290 TraceCheckUtils]: 31: Hoare triple {9076#true} assume true; {9076#true} is VALID [2022-04-08 11:08:35,939 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {9076#true} {9157#(and (< (* main_~Y~0 2) main_~X~0) (< main_~v~0 (* main_~Y~0 2)))} #65#return; {9157#(and (< (* main_~Y~0 2) main_~X~0) (< main_~v~0 (* main_~Y~0 2)))} is VALID [2022-04-08 11:08:35,940 INFO L290 TraceCheckUtils]: 33: Hoare triple {9157#(and (< (* main_~Y~0 2) main_~X~0) (< main_~v~0 (* main_~Y~0 2)))} assume !!(~x~0 <= ~X~0); {9157#(and (< (* main_~Y~0 2) main_~X~0) (< main_~v~0 (* main_~Y~0 2)))} is VALID [2022-04-08 11:08:35,940 INFO L290 TraceCheckUtils]: 34: Hoare triple {9157#(and (< (* main_~Y~0 2) main_~X~0) (< main_~v~0 (* main_~Y~0 2)))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {9185#(< 0 (div (+ (- 1) (* (- 1) main_~v~0)) 2))} is VALID [2022-04-08 11:08:35,947 INFO L290 TraceCheckUtils]: 35: Hoare triple {9185#(< 0 (div (+ (- 1) (* (- 1) main_~v~0)) 2))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {9185#(< 0 (div (+ (- 1) (* (- 1) main_~v~0)) 2))} is VALID [2022-04-08 11:08:35,947 INFO L290 TraceCheckUtils]: 36: Hoare triple {9185#(< 0 (div (+ (- 1) (* (- 1) main_~v~0)) 2))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {9185#(< 0 (div (+ (- 1) (* (- 1) main_~v~0)) 2))} is VALID [2022-04-08 11:08:35,947 INFO L272 TraceCheckUtils]: 37: Hoare triple {9185#(< 0 (div (+ (- 1) (* (- 1) main_~v~0)) 2))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {9076#true} is VALID [2022-04-08 11:08:35,947 INFO L290 TraceCheckUtils]: 38: Hoare triple {9076#true} ~cond := #in~cond; {9076#true} is VALID [2022-04-08 11:08:35,947 INFO L290 TraceCheckUtils]: 39: Hoare triple {9076#true} assume !(0 == ~cond); {9076#true} is VALID [2022-04-08 11:08:35,947 INFO L290 TraceCheckUtils]: 40: Hoare triple {9076#true} assume true; {9076#true} is VALID [2022-04-08 11:08:35,948 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {9076#true} {9185#(< 0 (div (+ (- 1) (* (- 1) main_~v~0)) 2))} #65#return; {9185#(< 0 (div (+ (- 1) (* (- 1) main_~v~0)) 2))} is VALID [2022-04-08 11:08:35,948 INFO L290 TraceCheckUtils]: 42: Hoare triple {9185#(< 0 (div (+ (- 1) (* (- 1) main_~v~0)) 2))} assume !!(~x~0 <= ~X~0); {9185#(< 0 (div (+ (- 1) (* (- 1) main_~v~0)) 2))} is VALID [2022-04-08 11:08:35,949 INFO L290 TraceCheckUtils]: 43: Hoare triple {9185#(< 0 (div (+ (- 1) (* (- 1) main_~v~0)) 2))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {9077#false} is VALID [2022-04-08 11:08:35,949 INFO L290 TraceCheckUtils]: 44: Hoare triple {9077#false} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {9077#false} is VALID [2022-04-08 11:08:35,949 INFO L290 TraceCheckUtils]: 45: Hoare triple {9077#false} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {9077#false} is VALID [2022-04-08 11:08:35,949 INFO L272 TraceCheckUtils]: 46: Hoare triple {9077#false} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {9077#false} is VALID [2022-04-08 11:08:35,949 INFO L290 TraceCheckUtils]: 47: Hoare triple {9077#false} ~cond := #in~cond; {9077#false} is VALID [2022-04-08 11:08:35,950 INFO L290 TraceCheckUtils]: 48: Hoare triple {9077#false} assume 0 == ~cond; {9077#false} is VALID [2022-04-08 11:08:35,950 INFO L290 TraceCheckUtils]: 49: Hoare triple {9077#false} assume !false; {9077#false} is VALID [2022-04-08 11:08:35,950 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 14 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-04-08 11:08:35,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:08:36,135 INFO L290 TraceCheckUtils]: 49: Hoare triple {9077#false} assume !false; {9077#false} is VALID [2022-04-08 11:08:36,135 INFO L290 TraceCheckUtils]: 48: Hoare triple {9077#false} assume 0 == ~cond; {9077#false} is VALID [2022-04-08 11:08:36,135 INFO L290 TraceCheckUtils]: 47: Hoare triple {9077#false} ~cond := #in~cond; {9077#false} is VALID [2022-04-08 11:08:36,135 INFO L272 TraceCheckUtils]: 46: Hoare triple {9077#false} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {9077#false} is VALID [2022-04-08 11:08:36,135 INFO L290 TraceCheckUtils]: 45: Hoare triple {9077#false} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {9077#false} is VALID [2022-04-08 11:08:36,135 INFO L290 TraceCheckUtils]: 44: Hoare triple {9077#false} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {9077#false} is VALID [2022-04-08 11:08:36,136 INFO L290 TraceCheckUtils]: 43: Hoare triple {9249#(< main_~v~0 0)} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {9077#false} is VALID [2022-04-08 11:08:36,136 INFO L290 TraceCheckUtils]: 42: Hoare triple {9249#(< main_~v~0 0)} assume !!(~x~0 <= ~X~0); {9249#(< main_~v~0 0)} is VALID [2022-04-08 11:08:36,136 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {9076#true} {9249#(< main_~v~0 0)} #65#return; {9249#(< main_~v~0 0)} is VALID [2022-04-08 11:08:36,136 INFO L290 TraceCheckUtils]: 40: Hoare triple {9076#true} assume true; {9076#true} is VALID [2022-04-08 11:08:36,137 INFO L290 TraceCheckUtils]: 39: Hoare triple {9076#true} assume !(0 == ~cond); {9076#true} is VALID [2022-04-08 11:08:36,137 INFO L290 TraceCheckUtils]: 38: Hoare triple {9076#true} ~cond := #in~cond; {9076#true} is VALID [2022-04-08 11:08:36,137 INFO L272 TraceCheckUtils]: 37: Hoare triple {9249#(< main_~v~0 0)} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {9076#true} is VALID [2022-04-08 11:08:36,151 INFO L290 TraceCheckUtils]: 36: Hoare triple {9249#(< main_~v~0 0)} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {9249#(< main_~v~0 0)} is VALID [2022-04-08 11:08:36,152 INFO L290 TraceCheckUtils]: 35: Hoare triple {9249#(< main_~v~0 0)} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {9249#(< main_~v~0 0)} is VALID [2022-04-08 11:08:36,152 INFO L290 TraceCheckUtils]: 34: Hoare triple {9277#(< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {9249#(< main_~v~0 0)} is VALID [2022-04-08 11:08:36,153 INFO L290 TraceCheckUtils]: 33: Hoare triple {9277#(< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))} assume !!(~x~0 <= ~X~0); {9277#(< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))} is VALID [2022-04-08 11:08:36,153 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {9076#true} {9277#(< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))} #65#return; {9277#(< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))} is VALID [2022-04-08 11:08:36,153 INFO L290 TraceCheckUtils]: 31: Hoare triple {9076#true} assume true; {9076#true} is VALID [2022-04-08 11:08:36,153 INFO L290 TraceCheckUtils]: 30: Hoare triple {9076#true} assume !(0 == ~cond); {9076#true} is VALID [2022-04-08 11:08:36,153 INFO L290 TraceCheckUtils]: 29: Hoare triple {9076#true} ~cond := #in~cond; {9076#true} is VALID [2022-04-08 11:08:36,154 INFO L272 TraceCheckUtils]: 28: Hoare triple {9277#(< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {9076#true} is VALID [2022-04-08 11:08:36,154 INFO L290 TraceCheckUtils]: 27: Hoare triple {9277#(< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {9277#(< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))} is VALID [2022-04-08 11:08:36,154 INFO L290 TraceCheckUtils]: 26: Hoare triple {9277#(< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {9277#(< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))} is VALID [2022-04-08 11:08:36,155 INFO L290 TraceCheckUtils]: 25: Hoare triple {9305#(or (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (not (< main_~v~0 0)))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {9277#(< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))} is VALID [2022-04-08 11:08:36,155 INFO L290 TraceCheckUtils]: 24: Hoare triple {9305#(or (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (not (< main_~v~0 0)))} assume !!(~x~0 <= ~X~0); {9305#(or (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (not (< main_~v~0 0)))} is VALID [2022-04-08 11:08:36,156 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {9076#true} {9305#(or (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (not (< main_~v~0 0)))} #65#return; {9305#(or (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (not (< main_~v~0 0)))} is VALID [2022-04-08 11:08:36,156 INFO L290 TraceCheckUtils]: 22: Hoare triple {9076#true} assume true; {9076#true} is VALID [2022-04-08 11:08:36,156 INFO L290 TraceCheckUtils]: 21: Hoare triple {9076#true} assume !(0 == ~cond); {9076#true} is VALID [2022-04-08 11:08:36,156 INFO L290 TraceCheckUtils]: 20: Hoare triple {9076#true} ~cond := #in~cond; {9076#true} is VALID [2022-04-08 11:08:36,156 INFO L272 TraceCheckUtils]: 19: Hoare triple {9305#(or (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (not (< main_~v~0 0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {9076#true} is VALID [2022-04-08 11:08:36,157 INFO L290 TraceCheckUtils]: 18: Hoare triple {9305#(or (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (not (< main_~v~0 0)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {9305#(or (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (not (< main_~v~0 0)))} is VALID [2022-04-08 11:08:36,157 INFO L290 TraceCheckUtils]: 17: Hoare triple {9076#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {9305#(or (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (not (< main_~v~0 0)))} is VALID [2022-04-08 11:08:36,157 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {9076#true} {9076#true} #63#return; {9076#true} is VALID [2022-04-08 11:08:36,157 INFO L290 TraceCheckUtils]: 15: Hoare triple {9076#true} assume true; {9076#true} is VALID [2022-04-08 11:08:36,158 INFO L290 TraceCheckUtils]: 14: Hoare triple {9076#true} assume !(0 == ~cond); {9076#true} is VALID [2022-04-08 11:08:36,158 INFO L290 TraceCheckUtils]: 13: Hoare triple {9076#true} ~cond := #in~cond; {9076#true} is VALID [2022-04-08 11:08:36,158 INFO L272 TraceCheckUtils]: 12: Hoare triple {9076#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {9076#true} is VALID [2022-04-08 11:08:36,158 INFO L290 TraceCheckUtils]: 11: Hoare triple {9076#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {9076#true} is VALID [2022-04-08 11:08:36,158 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {9076#true} {9076#true} #61#return; {9076#true} is VALID [2022-04-08 11:08:36,158 INFO L290 TraceCheckUtils]: 9: Hoare triple {9076#true} assume true; {9076#true} is VALID [2022-04-08 11:08:36,158 INFO L290 TraceCheckUtils]: 8: Hoare triple {9076#true} assume !(0 == ~cond); {9076#true} is VALID [2022-04-08 11:08:36,158 INFO L290 TraceCheckUtils]: 7: Hoare triple {9076#true} ~cond := #in~cond; {9076#true} is VALID [2022-04-08 11:08:36,158 INFO L272 TraceCheckUtils]: 6: Hoare triple {9076#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {9076#true} is VALID [2022-04-08 11:08:36,158 INFO L290 TraceCheckUtils]: 5: Hoare triple {9076#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {9076#true} is VALID [2022-04-08 11:08:36,158 INFO L272 TraceCheckUtils]: 4: Hoare triple {9076#true} call #t~ret8 := main(); {9076#true} is VALID [2022-04-08 11:08:36,158 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {9076#true} {9076#true} #69#return; {9076#true} is VALID [2022-04-08 11:08:36,158 INFO L290 TraceCheckUtils]: 2: Hoare triple {9076#true} assume true; {9076#true} is VALID [2022-04-08 11:08:36,158 INFO L290 TraceCheckUtils]: 1: Hoare triple {9076#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {9076#true} is VALID [2022-04-08 11:08:36,159 INFO L272 TraceCheckUtils]: 0: Hoare triple {9076#true} call ULTIMATE.init(); {9076#true} is VALID [2022-04-08 11:08:36,159 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 14 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-04-08 11:08:36,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:08:36,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669238822] [2022-04-08 11:08:36,159 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:08:36,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564266164] [2022-04-08 11:08:36,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564266164] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:08:36,159 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:08:36,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-04-08 11:08:36,160 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:08:36,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1954112512] [2022-04-08 11:08:36,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1954112512] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:08:36,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:08:36,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-08 11:08:36,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832069937] [2022-04-08 11:08:36,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:08:36,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 50 [2022-04-08 11:08:36,160 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:08:36,160 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:08:36,192 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:08:36,192 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-08 11:08:36,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:08:36,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-08 11:08:36,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-08 11:08:36,193 INFO L87 Difference]: Start difference. First operand 87 states and 97 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:08:36,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:08:36,609 INFO L93 Difference]: Finished difference Result 121 states and 141 transitions. [2022-04-08 11:08:36,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-08 11:08:36,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 50 [2022-04-08 11:08:36,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:08:36,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:08:36,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 71 transitions. [2022-04-08 11:08:36,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:08:36,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 71 transitions. [2022-04-08 11:08:36,611 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 71 transitions. [2022-04-08 11:08:36,660 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:08:36,662 INFO L225 Difference]: With dead ends: 121 [2022-04-08 11:08:36,662 INFO L226 Difference]: Without dead ends: 108 [2022-04-08 11:08:36,662 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-04-08 11:08:36,663 INFO L913 BasicCegarLoop]: 34 mSDtfsCounter, 4 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 11:08:36,663 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 91 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 11:08:36,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-04-08 11:08:36,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2022-04-08 11:08:36,861 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:08:36,861 INFO L82 GeneralOperation]: Start isEquivalent. First operand 108 states. Second operand has 104 states, 76 states have (on average 1.131578947368421) internal successors, (86), 79 states have internal predecessors, (86), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2022-04-08 11:08:36,861 INFO L74 IsIncluded]: Start isIncluded. First operand 108 states. Second operand has 104 states, 76 states have (on average 1.131578947368421) internal successors, (86), 79 states have internal predecessors, (86), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2022-04-08 11:08:36,861 INFO L87 Difference]: Start difference. First operand 108 states. Second operand has 104 states, 76 states have (on average 1.131578947368421) internal successors, (86), 79 states have internal predecessors, (86), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2022-04-08 11:08:36,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:08:36,863 INFO L93 Difference]: Finished difference Result 108 states and 124 transitions. [2022-04-08 11:08:36,863 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 124 transitions. [2022-04-08 11:08:36,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:08:36,864 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:08:36,864 INFO L74 IsIncluded]: Start isIncluded. First operand has 104 states, 76 states have (on average 1.131578947368421) internal successors, (86), 79 states have internal predecessors, (86), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) Second operand 108 states. [2022-04-08 11:08:36,864 INFO L87 Difference]: Start difference. First operand has 104 states, 76 states have (on average 1.131578947368421) internal successors, (86), 79 states have internal predecessors, (86), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) Second operand 108 states. [2022-04-08 11:08:36,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:08:36,865 INFO L93 Difference]: Finished difference Result 108 states and 124 transitions. [2022-04-08 11:08:36,866 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 124 transitions. [2022-04-08 11:08:36,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:08:36,866 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:08:36,866 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:08:36,866 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:08:36,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 76 states have (on average 1.131578947368421) internal successors, (86), 79 states have internal predecessors, (86), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2022-04-08 11:08:36,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 120 transitions. [2022-04-08 11:08:36,868 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 120 transitions. Word has length 50 [2022-04-08 11:08:36,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:08:36,868 INFO L478 AbstractCegarLoop]: Abstraction has 104 states and 120 transitions. [2022-04-08 11:08:36,868 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:08:36,868 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 104 states and 120 transitions. [2022-04-08 11:08:41,201 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 120 edges. 118 inductive. 0 not inductive. 2 times theorem prover too weak to decide inductivity. [2022-04-08 11:08:41,201 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 120 transitions. [2022-04-08 11:08:41,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-08 11:08:41,202 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:08:41,202 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:08:41,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-04-08 11:08:41,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:08:41,407 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:08:41,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:08:41,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1452517941, now seen corresponding path program 11 times [2022-04-08 11:08:41,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:08:41,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [596509273] [2022-04-08 11:08:41,408 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:08:41,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1452517941, now seen corresponding path program 12 times [2022-04-08 11:08:41,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:08:41,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002990663] [2022-04-08 11:08:41,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:08:41,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:08:41,417 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:08:41,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [566112999] [2022-04-08 11:08:41,417 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-08 11:08:41,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:08:41,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:08:41,418 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:08:41,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-04-08 11:08:41,461 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-04-08 11:08:41,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:08:41,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 37 conjunts are in the unsatisfiable core [2022-04-08 11:08:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:08:41,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:08:42,050 INFO L272 TraceCheckUtils]: 0: Hoare triple {10051#true} call ULTIMATE.init(); {10051#true} is VALID [2022-04-08 11:08:42,051 INFO L290 TraceCheckUtils]: 1: Hoare triple {10051#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {10051#true} is VALID [2022-04-08 11:08:42,051 INFO L290 TraceCheckUtils]: 2: Hoare triple {10051#true} assume true; {10051#true} is VALID [2022-04-08 11:08:42,051 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {10051#true} {10051#true} #69#return; {10051#true} is VALID [2022-04-08 11:08:42,051 INFO L272 TraceCheckUtils]: 4: Hoare triple {10051#true} call #t~ret8 := main(); {10051#true} is VALID [2022-04-08 11:08:42,051 INFO L290 TraceCheckUtils]: 5: Hoare triple {10051#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {10051#true} is VALID [2022-04-08 11:08:42,051 INFO L272 TraceCheckUtils]: 6: Hoare triple {10051#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {10051#true} is VALID [2022-04-08 11:08:42,051 INFO L290 TraceCheckUtils]: 7: Hoare triple {10051#true} ~cond := #in~cond; {10051#true} is VALID [2022-04-08 11:08:42,051 INFO L290 TraceCheckUtils]: 8: Hoare triple {10051#true} assume !(0 == ~cond); {10051#true} is VALID [2022-04-08 11:08:42,051 INFO L290 TraceCheckUtils]: 9: Hoare triple {10051#true} assume true; {10051#true} is VALID [2022-04-08 11:08:42,051 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {10051#true} {10051#true} #61#return; {10051#true} is VALID [2022-04-08 11:08:42,051 INFO L290 TraceCheckUtils]: 11: Hoare triple {10051#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {10051#true} is VALID [2022-04-08 11:08:42,051 INFO L272 TraceCheckUtils]: 12: Hoare triple {10051#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {10051#true} is VALID [2022-04-08 11:08:42,052 INFO L290 TraceCheckUtils]: 13: Hoare triple {10051#true} ~cond := #in~cond; {10095#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-08 11:08:42,052 INFO L290 TraceCheckUtils]: 14: Hoare triple {10095#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} assume !(0 == ~cond); {10099#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-08 11:08:42,052 INFO L290 TraceCheckUtils]: 15: Hoare triple {10099#(not (= |assume_abort_if_not_#in~cond| 0))} assume true; {10099#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-08 11:08:42,053 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {10099#(not (= |assume_abort_if_not_#in~cond| 0))} {10051#true} #63#return; {10106#(and (<= 0 main_~Y~0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:08:42,053 INFO L290 TraceCheckUtils]: 17: Hoare triple {10106#(and (<= 0 main_~Y~0) (<= main_~Y~0 100))} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {10110#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:08:42,054 INFO L290 TraceCheckUtils]: 18: Hoare triple {10110#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {10110#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:08:42,054 INFO L272 TraceCheckUtils]: 19: Hoare triple {10110#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {10051#true} is VALID [2022-04-08 11:08:42,054 INFO L290 TraceCheckUtils]: 20: Hoare triple {10051#true} ~cond := #in~cond; {10051#true} is VALID [2022-04-08 11:08:42,054 INFO L290 TraceCheckUtils]: 21: Hoare triple {10051#true} assume !(0 == ~cond); {10051#true} is VALID [2022-04-08 11:08:42,054 INFO L290 TraceCheckUtils]: 22: Hoare triple {10051#true} assume true; {10051#true} is VALID [2022-04-08 11:08:42,054 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {10051#true} {10110#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} #65#return; {10110#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:08:42,055 INFO L290 TraceCheckUtils]: 24: Hoare triple {10110#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} assume !!(~x~0 <= ~X~0); {10110#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:08:42,055 INFO L290 TraceCheckUtils]: 25: Hoare triple {10110#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (= main_~y~0 0) (<= main_~Y~0 100))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {10135#(and (= main_~x~0 0) (= main_~y~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:08:42,056 INFO L290 TraceCheckUtils]: 26: Hoare triple {10135#(and (= main_~x~0 0) (= main_~y~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {10139#(and (= main_~y~0 1) (= main_~x~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:08:42,056 INFO L290 TraceCheckUtils]: 27: Hoare triple {10139#(and (= main_~y~0 1) (= main_~x~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {10139#(and (= main_~y~0 1) (= main_~x~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:08:42,056 INFO L272 TraceCheckUtils]: 28: Hoare triple {10139#(and (= main_~y~0 1) (= main_~x~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {10051#true} is VALID [2022-04-08 11:08:42,057 INFO L290 TraceCheckUtils]: 29: Hoare triple {10051#true} ~cond := #in~cond; {10051#true} is VALID [2022-04-08 11:08:42,057 INFO L290 TraceCheckUtils]: 30: Hoare triple {10051#true} assume !(0 == ~cond); {10051#true} is VALID [2022-04-08 11:08:42,057 INFO L290 TraceCheckUtils]: 31: Hoare triple {10051#true} assume true; {10051#true} is VALID [2022-04-08 11:08:42,057 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {10051#true} {10139#(and (= main_~y~0 1) (= main_~x~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} #65#return; {10139#(and (= main_~y~0 1) (= main_~x~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:08:42,058 INFO L290 TraceCheckUtils]: 33: Hoare triple {10139#(and (= main_~y~0 1) (= main_~x~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} assume !!(~x~0 <= ~X~0); {10139#(and (= main_~y~0 1) (= main_~x~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:08:42,058 INFO L290 TraceCheckUtils]: 34: Hoare triple {10139#(and (= main_~y~0 1) (= main_~x~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {10164#(and (< (* main_~Y~0 4) (* main_~X~0 3)) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 1) (= main_~x~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:08:42,059 INFO L290 TraceCheckUtils]: 35: Hoare triple {10164#(and (< (* main_~Y~0 4) (* main_~X~0 3)) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 1) (= main_~x~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {10168#(and (= (+ (- 1) main_~x~0) 1) (< (* main_~Y~0 4) (* main_~X~0 3)) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:08:42,059 INFO L290 TraceCheckUtils]: 36: Hoare triple {10168#(and (= (+ (- 1) main_~x~0) 1) (< (* main_~Y~0 4) (* main_~X~0 3)) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {10168#(and (= (+ (- 1) main_~x~0) 1) (< (* main_~Y~0 4) (* main_~X~0 3)) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:08:42,059 INFO L272 TraceCheckUtils]: 37: Hoare triple {10168#(and (= (+ (- 1) main_~x~0) 1) (< (* main_~Y~0 4) (* main_~X~0 3)) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {10051#true} is VALID [2022-04-08 11:08:42,059 INFO L290 TraceCheckUtils]: 38: Hoare triple {10051#true} ~cond := #in~cond; {10051#true} is VALID [2022-04-08 11:08:42,060 INFO L290 TraceCheckUtils]: 39: Hoare triple {10051#true} assume !(0 == ~cond); {10051#true} is VALID [2022-04-08 11:08:42,060 INFO L290 TraceCheckUtils]: 40: Hoare triple {10051#true} assume true; {10051#true} is VALID [2022-04-08 11:08:42,060 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {10051#true} {10168#(and (= (+ (- 1) main_~x~0) 1) (< (* main_~Y~0 4) (* main_~X~0 3)) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100))} #65#return; {10168#(and (= (+ (- 1) main_~x~0) 1) (< (* main_~Y~0 4) (* main_~X~0 3)) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:08:42,061 INFO L290 TraceCheckUtils]: 42: Hoare triple {10168#(and (= (+ (- 1) main_~x~0) 1) (< (* main_~Y~0 4) (* main_~X~0 3)) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100))} assume !!(~x~0 <= ~X~0); {10168#(and (= (+ (- 1) main_~x~0) 1) (< (* main_~Y~0 4) (* main_~X~0 3)) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:08:42,061 INFO L290 TraceCheckUtils]: 43: Hoare triple {10168#(and (= (+ (- 1) main_~x~0) 1) (< (* main_~Y~0 4) (* main_~X~0 3)) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) main_~v~0) (= main_~y~0 1) (<= 0 main_~Y~0) (<= main_~Y~0 100))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {10193#(and (= (+ (- 1) main_~x~0) 1) (< (* main_~Y~0 4) (* main_~X~0 3)) (= (+ (- 1) main_~y~0) 1) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:08:42,062 INFO L290 TraceCheckUtils]: 44: Hoare triple {10193#(and (= (+ (- 1) main_~x~0) 1) (< (* main_~Y~0 4) (* main_~X~0 3)) (= (+ (- 1) main_~y~0) 1) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {10197#(and (< (* main_~Y~0 4) (* main_~X~0 3)) (= main_~x~0 3) (= (+ (- 1) main_~y~0) 1) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:08:42,062 INFO L290 TraceCheckUtils]: 45: Hoare triple {10197#(and (< (* main_~Y~0 4) (* main_~X~0 3)) (= main_~x~0 3) (= (+ (- 1) main_~y~0) 1) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {10201#(and (< (* main_~Y~0 4) (* main_~X~0 3)) (= main_~xy~0 (* main_~X~0 2)) (= (* main_~Y~0 3) main_~yx~0) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:08:42,063 INFO L272 TraceCheckUtils]: 46: Hoare triple {10201#(and (< (* main_~Y~0 4) (* main_~X~0 3)) (= main_~xy~0 (* main_~X~0 2)) (= (* main_~Y~0 3) main_~yx~0) (<= 0 main_~Y~0) (<= main_~Y~0 100) (= (+ (* main_~X~0 (- 3)) (* main_~Y~0 6)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {10205#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:08:42,064 INFO L290 TraceCheckUtils]: 47: Hoare triple {10205#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {10209#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:08:42,064 INFO L290 TraceCheckUtils]: 48: Hoare triple {10209#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {10052#false} is VALID [2022-04-08 11:08:42,064 INFO L290 TraceCheckUtils]: 49: Hoare triple {10052#false} assume !false; {10052#false} is VALID [2022-04-08 11:08:42,064 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-04-08 11:08:42,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:08:42,555 INFO L290 TraceCheckUtils]: 49: Hoare triple {10052#false} assume !false; {10052#false} is VALID [2022-04-08 11:08:42,555 INFO L290 TraceCheckUtils]: 48: Hoare triple {10209#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {10052#false} is VALID [2022-04-08 11:08:42,556 INFO L290 TraceCheckUtils]: 47: Hoare triple {10205#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {10209#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:08:42,556 INFO L272 TraceCheckUtils]: 46: Hoare triple {10225#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {10205#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:08:42,557 INFO L290 TraceCheckUtils]: 45: Hoare triple {10229#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {10225#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} is VALID [2022-04-08 11:08:42,559 INFO L290 TraceCheckUtils]: 44: Hoare triple {10233#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {10229#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:08:42,561 INFO L290 TraceCheckUtils]: 43: Hoare triple {10229#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {10233#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} is VALID [2022-04-08 11:08:42,561 INFO L290 TraceCheckUtils]: 42: Hoare triple {10229#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !!(~x~0 <= ~X~0); {10229#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:08:42,561 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {10051#true} {10229#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} #65#return; {10229#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:08:42,562 INFO L290 TraceCheckUtils]: 40: Hoare triple {10051#true} assume true; {10051#true} is VALID [2022-04-08 11:08:42,562 INFO L290 TraceCheckUtils]: 39: Hoare triple {10051#true} assume !(0 == ~cond); {10051#true} is VALID [2022-04-08 11:08:42,562 INFO L290 TraceCheckUtils]: 38: Hoare triple {10051#true} ~cond := #in~cond; {10051#true} is VALID [2022-04-08 11:08:42,562 INFO L272 TraceCheckUtils]: 37: Hoare triple {10229#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {10051#true} is VALID [2022-04-08 11:08:42,562 INFO L290 TraceCheckUtils]: 36: Hoare triple {10229#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {10229#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:08:42,563 INFO L290 TraceCheckUtils]: 35: Hoare triple {10233#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {10229#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:08:42,564 INFO L290 TraceCheckUtils]: 34: Hoare triple {10264#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {10233#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} is VALID [2022-04-08 11:08:42,565 INFO L290 TraceCheckUtils]: 33: Hoare triple {10264#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} assume !!(~x~0 <= ~X~0); {10264#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} is VALID [2022-04-08 11:08:42,565 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {10051#true} {10264#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} #65#return; {10264#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} is VALID [2022-04-08 11:08:42,565 INFO L290 TraceCheckUtils]: 31: Hoare triple {10051#true} assume true; {10051#true} is VALID [2022-04-08 11:08:42,565 INFO L290 TraceCheckUtils]: 30: Hoare triple {10051#true} assume !(0 == ~cond); {10051#true} is VALID [2022-04-08 11:08:42,565 INFO L290 TraceCheckUtils]: 29: Hoare triple {10051#true} ~cond := #in~cond; {10051#true} is VALID [2022-04-08 11:08:42,565 INFO L272 TraceCheckUtils]: 28: Hoare triple {10264#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {10051#true} is VALID [2022-04-08 11:08:42,566 INFO L290 TraceCheckUtils]: 27: Hoare triple {10264#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {10264#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} is VALID [2022-04-08 11:08:42,567 INFO L290 TraceCheckUtils]: 26: Hoare triple {10289#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {10264#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} is VALID [2022-04-08 11:08:42,569 INFO L290 TraceCheckUtils]: 25: Hoare triple {10293#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 4) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {10289#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))))} is VALID [2022-04-08 11:08:42,570 INFO L290 TraceCheckUtils]: 24: Hoare triple {10293#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 4) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))))} assume !!(~x~0 <= ~X~0); {10293#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 4) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))))} is VALID [2022-04-08 11:08:42,570 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {10051#true} {10293#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 4) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))))} #65#return; {10293#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 4) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))))} is VALID [2022-04-08 11:08:42,570 INFO L290 TraceCheckUtils]: 22: Hoare triple {10051#true} assume true; {10051#true} is VALID [2022-04-08 11:08:42,570 INFO L290 TraceCheckUtils]: 21: Hoare triple {10051#true} assume !(0 == ~cond); {10051#true} is VALID [2022-04-08 11:08:42,570 INFO L290 TraceCheckUtils]: 20: Hoare triple {10051#true} ~cond := #in~cond; {10051#true} is VALID [2022-04-08 11:08:42,570 INFO L272 TraceCheckUtils]: 19: Hoare triple {10293#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 4) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {10051#true} is VALID [2022-04-08 11:08:42,571 INFO L290 TraceCheckUtils]: 18: Hoare triple {10293#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 4) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {10293#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 4) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))))} is VALID [2022-04-08 11:08:42,571 INFO L290 TraceCheckUtils]: 17: Hoare triple {10051#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {10293#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 4) (* (* main_~X~0 (+ main_~y~0 1)) 2)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) (* main_~Y~0 2))) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))))} is VALID [2022-04-08 11:08:42,571 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {10051#true} {10051#true} #63#return; {10051#true} is VALID [2022-04-08 11:08:42,572 INFO L290 TraceCheckUtils]: 15: Hoare triple {10051#true} assume true; {10051#true} is VALID [2022-04-08 11:08:42,572 INFO L290 TraceCheckUtils]: 14: Hoare triple {10051#true} assume !(0 == ~cond); {10051#true} is VALID [2022-04-08 11:08:42,572 INFO L290 TraceCheckUtils]: 13: Hoare triple {10051#true} ~cond := #in~cond; {10051#true} is VALID [2022-04-08 11:08:42,572 INFO L272 TraceCheckUtils]: 12: Hoare triple {10051#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {10051#true} is VALID [2022-04-08 11:08:42,572 INFO L290 TraceCheckUtils]: 11: Hoare triple {10051#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {10051#true} is VALID [2022-04-08 11:08:42,572 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {10051#true} {10051#true} #61#return; {10051#true} is VALID [2022-04-08 11:08:42,572 INFO L290 TraceCheckUtils]: 9: Hoare triple {10051#true} assume true; {10051#true} is VALID [2022-04-08 11:08:42,572 INFO L290 TraceCheckUtils]: 8: Hoare triple {10051#true} assume !(0 == ~cond); {10051#true} is VALID [2022-04-08 11:08:42,572 INFO L290 TraceCheckUtils]: 7: Hoare triple {10051#true} ~cond := #in~cond; {10051#true} is VALID [2022-04-08 11:08:42,572 INFO L272 TraceCheckUtils]: 6: Hoare triple {10051#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {10051#true} is VALID [2022-04-08 11:08:42,572 INFO L290 TraceCheckUtils]: 5: Hoare triple {10051#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {10051#true} is VALID [2022-04-08 11:08:42,572 INFO L272 TraceCheckUtils]: 4: Hoare triple {10051#true} call #t~ret8 := main(); {10051#true} is VALID [2022-04-08 11:08:42,572 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {10051#true} {10051#true} #69#return; {10051#true} is VALID [2022-04-08 11:08:42,572 INFO L290 TraceCheckUtils]: 2: Hoare triple {10051#true} assume true; {10051#true} is VALID [2022-04-08 11:08:42,573 INFO L290 TraceCheckUtils]: 1: Hoare triple {10051#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {10051#true} is VALID [2022-04-08 11:08:42,573 INFO L272 TraceCheckUtils]: 0: Hoare triple {10051#true} call ULTIMATE.init(); {10051#true} is VALID [2022-04-08 11:08:42,573 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-04-08 11:08:42,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:08:42,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002990663] [2022-04-08 11:08:42,573 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:08:42,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566112999] [2022-04-08 11:08:42,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566112999] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:08:42,573 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:08:42,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10] total 21 [2022-04-08 11:08:42,574 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:08:42,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [596509273] [2022-04-08 11:08:42,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [596509273] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:08:42,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:08:42,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-08 11:08:42,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517834044] [2022-04-08 11:08:42,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:08:42,574 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 50 [2022-04-08 11:08:42,574 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:08:42,575 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 15 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:08:42,608 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:08:42,608 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-08 11:08:42,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:08:42,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-08 11:08:42,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2022-04-08 11:08:42,609 INFO L87 Difference]: Start difference. First operand 104 states and 120 transitions. Second operand has 15 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:08:43,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:08:43,726 INFO L93 Difference]: Finished difference Result 117 states and 135 transitions. [2022-04-08 11:08:43,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-08 11:08:43,727 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 50 [2022-04-08 11:08:43,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:08:43,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:08:43,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 64 transitions. [2022-04-08 11:08:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:08:43,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 64 transitions. [2022-04-08 11:08:43,729 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 15 states and 64 transitions. [2022-04-08 11:08:43,792 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:08:43,793 INFO L225 Difference]: With dead ends: 117 [2022-04-08 11:08:43,793 INFO L226 Difference]: Without dead ends: 115 [2022-04-08 11:08:43,794 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2022-04-08 11:08:43,794 INFO L913 BasicCegarLoop]: 29 mSDtfsCounter, 22 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-08 11:08:43,794 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 148 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-08 11:08:43,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-04-08 11:08:44,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 111. [2022-04-08 11:08:44,007 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:08:44,007 INFO L82 GeneralOperation]: Start isEquivalent. First operand 115 states. Second operand has 111 states, 81 states have (on average 1.123456790123457) internal successors, (91), 85 states have internal predecessors, (91), 19 states have call successors, (19), 11 states have call predecessors, (19), 10 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2022-04-08 11:08:44,007 INFO L74 IsIncluded]: Start isIncluded. First operand 115 states. Second operand has 111 states, 81 states have (on average 1.123456790123457) internal successors, (91), 85 states have internal predecessors, (91), 19 states have call successors, (19), 11 states have call predecessors, (19), 10 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2022-04-08 11:08:44,007 INFO L87 Difference]: Start difference. First operand 115 states. Second operand has 111 states, 81 states have (on average 1.123456790123457) internal successors, (91), 85 states have internal predecessors, (91), 19 states have call successors, (19), 11 states have call predecessors, (19), 10 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2022-04-08 11:08:44,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:08:44,009 INFO L93 Difference]: Finished difference Result 115 states and 133 transitions. [2022-04-08 11:08:44,009 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 133 transitions. [2022-04-08 11:08:44,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:08:44,010 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:08:44,010 INFO L74 IsIncluded]: Start isIncluded. First operand has 111 states, 81 states have (on average 1.123456790123457) internal successors, (91), 85 states have internal predecessors, (91), 19 states have call successors, (19), 11 states have call predecessors, (19), 10 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) Second operand 115 states. [2022-04-08 11:08:44,010 INFO L87 Difference]: Start difference. First operand has 111 states, 81 states have (on average 1.123456790123457) internal successors, (91), 85 states have internal predecessors, (91), 19 states have call successors, (19), 11 states have call predecessors, (19), 10 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) Second operand 115 states. [2022-04-08 11:08:44,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:08:44,012 INFO L93 Difference]: Finished difference Result 115 states and 133 transitions. [2022-04-08 11:08:44,012 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 133 transitions. [2022-04-08 11:08:44,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:08:44,012 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:08:44,012 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:08:44,012 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:08:44,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 81 states have (on average 1.123456790123457) internal successors, (91), 85 states have internal predecessors, (91), 19 states have call successors, (19), 11 states have call predecessors, (19), 10 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2022-04-08 11:08:44,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 127 transitions. [2022-04-08 11:08:44,014 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 127 transitions. Word has length 50 [2022-04-08 11:08:44,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:08:44,014 INFO L478 AbstractCegarLoop]: Abstraction has 111 states and 127 transitions. [2022-04-08 11:08:44,014 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:08:44,014 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 111 states and 127 transitions. [2022-04-08 11:08:48,324 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 127 edges. 125 inductive. 0 not inductive. 2 times theorem prover too weak to decide inductivity. [2022-04-08 11:08:48,324 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 127 transitions. [2022-04-08 11:08:48,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-08 11:08:48,325 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:08:48,325 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:08:48,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-04-08 11:08:48,525 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-04-08 11:08:48,525 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:08:48,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:08:48,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1343557775, now seen corresponding path program 13 times [2022-04-08 11:08:48,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:08:48,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1392492750] [2022-04-08 11:08:48,526 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:08:48,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1343557775, now seen corresponding path program 14 times [2022-04-08 11:08:48,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:08:48,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119976528] [2022-04-08 11:08:48,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:08:48,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:08:48,535 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:08:48,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196442497] [2022-04-08 11:08:48,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-08 11:08:48,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:08:48,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:08:48,552 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:08:48,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-04-08 11:08:48,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-08 11:08:48,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:08:48,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 43 conjunts are in the unsatisfiable core [2022-04-08 11:08:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:08:48,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:09:05,175 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:09:11,345 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:09:15,988 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:09:16,300 INFO L272 TraceCheckUtils]: 0: Hoare triple {11063#true} call ULTIMATE.init(); {11063#true} is VALID [2022-04-08 11:09:16,300 INFO L290 TraceCheckUtils]: 1: Hoare triple {11063#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {11063#true} is VALID [2022-04-08 11:09:16,300 INFO L290 TraceCheckUtils]: 2: Hoare triple {11063#true} assume true; {11063#true} is VALID [2022-04-08 11:09:16,300 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {11063#true} {11063#true} #69#return; {11063#true} is VALID [2022-04-08 11:09:16,300 INFO L272 TraceCheckUtils]: 4: Hoare triple {11063#true} call #t~ret8 := main(); {11063#true} is VALID [2022-04-08 11:09:16,300 INFO L290 TraceCheckUtils]: 5: Hoare triple {11063#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {11063#true} is VALID [2022-04-08 11:09:16,301 INFO L272 TraceCheckUtils]: 6: Hoare triple {11063#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {11063#true} is VALID [2022-04-08 11:09:16,301 INFO L290 TraceCheckUtils]: 7: Hoare triple {11063#true} ~cond := #in~cond; {11063#true} is VALID [2022-04-08 11:09:16,301 INFO L290 TraceCheckUtils]: 8: Hoare triple {11063#true} assume !(0 == ~cond); {11063#true} is VALID [2022-04-08 11:09:16,301 INFO L290 TraceCheckUtils]: 9: Hoare triple {11063#true} assume true; {11063#true} is VALID [2022-04-08 11:09:16,301 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {11063#true} {11063#true} #61#return; {11063#true} is VALID [2022-04-08 11:09:16,301 INFO L290 TraceCheckUtils]: 11: Hoare triple {11063#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {11063#true} is VALID [2022-04-08 11:09:16,301 INFO L272 TraceCheckUtils]: 12: Hoare triple {11063#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {11063#true} is VALID [2022-04-08 11:09:16,301 INFO L290 TraceCheckUtils]: 13: Hoare triple {11063#true} ~cond := #in~cond; {11063#true} is VALID [2022-04-08 11:09:16,301 INFO L290 TraceCheckUtils]: 14: Hoare triple {11063#true} assume !(0 == ~cond); {11063#true} is VALID [2022-04-08 11:09:16,301 INFO L290 TraceCheckUtils]: 15: Hoare triple {11063#true} assume true; {11063#true} is VALID [2022-04-08 11:09:16,301 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {11063#true} {11063#true} #63#return; {11063#true} is VALID [2022-04-08 11:09:16,302 INFO L290 TraceCheckUtils]: 17: Hoare triple {11063#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {11119#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} is VALID [2022-04-08 11:09:16,302 INFO L290 TraceCheckUtils]: 18: Hoare triple {11119#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {11119#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} is VALID [2022-04-08 11:09:16,302 INFO L272 TraceCheckUtils]: 19: Hoare triple {11119#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {11063#true} is VALID [2022-04-08 11:09:16,302 INFO L290 TraceCheckUtils]: 20: Hoare triple {11063#true} ~cond := #in~cond; {11063#true} is VALID [2022-04-08 11:09:16,302 INFO L290 TraceCheckUtils]: 21: Hoare triple {11063#true} assume !(0 == ~cond); {11063#true} is VALID [2022-04-08 11:09:16,302 INFO L290 TraceCheckUtils]: 22: Hoare triple {11063#true} assume true; {11063#true} is VALID [2022-04-08 11:09:16,303 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {11063#true} {11119#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} #65#return; {11119#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} is VALID [2022-04-08 11:09:16,303 INFO L290 TraceCheckUtils]: 24: Hoare triple {11119#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} assume !!(~x~0 <= ~X~0); {11119#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} is VALID [2022-04-08 11:09:16,304 INFO L290 TraceCheckUtils]: 25: Hoare triple {11119#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {11144#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:09:16,305 INFO L290 TraceCheckUtils]: 26: Hoare triple {11144#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {11148#(and (= (+ (- 1) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:09:16,305 INFO L290 TraceCheckUtils]: 27: Hoare triple {11148#(and (= (+ (- 1) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {11148#(and (= (+ (- 1) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:09:16,305 INFO L272 TraceCheckUtils]: 28: Hoare triple {11148#(and (= (+ (- 1) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {11063#true} is VALID [2022-04-08 11:09:16,306 INFO L290 TraceCheckUtils]: 29: Hoare triple {11063#true} ~cond := #in~cond; {11158#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:09:16,306 INFO L290 TraceCheckUtils]: 30: Hoare triple {11158#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {11162#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:09:16,306 INFO L290 TraceCheckUtils]: 31: Hoare triple {11162#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {11162#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:09:16,307 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {11162#(not (= |__VERIFIER_assert_#in~cond| 0))} {11148#(and (= (+ (- 1) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} #65#return; {11148#(and (= (+ (- 1) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:09:16,307 INFO L290 TraceCheckUtils]: 33: Hoare triple {11148#(and (= (+ (- 1) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} assume !!(~x~0 <= ~X~0); {11148#(and (= (+ (- 1) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:09:16,308 INFO L290 TraceCheckUtils]: 34: Hoare triple {11148#(and (= (+ (- 1) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {11175#(and (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 1) main_~x~0) 0) (not (< (* main_~Y~0 4) (* main_~X~0 3))))} is VALID [2022-04-08 11:09:16,308 INFO L290 TraceCheckUtils]: 35: Hoare triple {11175#(and (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 1) main_~x~0) 0) (not (< (* main_~Y~0 4) (* main_~X~0 3))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {11179#(and (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (not (< (* main_~Y~0 4) (* main_~X~0 3))))} is VALID [2022-04-08 11:09:16,309 INFO L290 TraceCheckUtils]: 36: Hoare triple {11179#(and (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (not (< (* main_~Y~0 4) (* main_~X~0 3))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {11183#(and (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (not (< (* main_~Y~0 4) (* main_~X~0 3))) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} is VALID [2022-04-08 11:09:16,309 INFO L272 TraceCheckUtils]: 37: Hoare triple {11183#(and (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (not (< (* main_~Y~0 4) (* main_~X~0 3))) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {11063#true} is VALID [2022-04-08 11:09:16,309 INFO L290 TraceCheckUtils]: 38: Hoare triple {11063#true} ~cond := #in~cond; {11158#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:09:16,309 INFO L290 TraceCheckUtils]: 39: Hoare triple {11158#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {11162#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:09:16,310 INFO L290 TraceCheckUtils]: 40: Hoare triple {11162#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {11162#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:09:16,311 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {11162#(not (= |__VERIFIER_assert_#in~cond| 0))} {11183#(and (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (not (< (* main_~Y~0 4) (* main_~X~0 3))) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} #65#return; {11199#(and (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (< (* main_~Y~0 4) (* main_~X~0 3))))} is VALID [2022-04-08 11:09:16,312 INFO L290 TraceCheckUtils]: 42: Hoare triple {11199#(and (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (< (* main_~Y~0 4) (* main_~X~0 3))))} assume !!(~x~0 <= ~X~0); {11199#(and (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (< (* main_~Y~0 4) (* main_~X~0 3))))} is VALID [2022-04-08 11:09:16,312 INFO L290 TraceCheckUtils]: 43: Hoare triple {11199#(and (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (< (* main_~Y~0 4) (* main_~X~0 3))))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {11206#(and (= (+ (- 2) main_~x~0) 0) (= (+ (* main_~Y~0 main_~x~0 2) (* (- 1) main_~X~0) (* main_~Y~0 2) (* (- 2) main_~X~0 main_~y~0)) (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= main_~v~0 (+ (* main_~Y~0 main_~x~0 2) (* (- 1) main_~X~0) (* (- 2) main_~X~0 main_~y~0) (* main_~Y~0 4))) (not (< (* main_~Y~0 4) (* main_~X~0 3))) (< (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0)))} is VALID [2022-04-08 11:09:16,314 INFO L290 TraceCheckUtils]: 44: Hoare triple {11206#(and (= (+ (- 2) main_~x~0) 0) (= (+ (* main_~Y~0 main_~x~0 2) (* (- 1) main_~X~0) (* main_~Y~0 2) (* (- 2) main_~X~0 main_~y~0)) (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= main_~v~0 (+ (* main_~Y~0 main_~x~0 2) (* (- 1) main_~X~0) (* (- 2) main_~X~0 main_~y~0) (* main_~Y~0 4))) (not (< (* main_~Y~0 4) (* main_~X~0 3))) (< (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0)))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {11210#(and (= (+ main_~x~0 (- 3)) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2) (* (- 2) main_~X~0 main_~y~0) (* (+ (- 1) main_~x~0) main_~Y~0 2)) (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= main_~v~0 (+ (* (- 1) main_~X~0) (* (- 2) main_~X~0 main_~y~0) (* main_~Y~0 4) (* (+ (- 1) main_~x~0) main_~Y~0 2))) (not (< (* main_~Y~0 4) (* main_~X~0 3))) (< (* 2 (* main_~Y~0 main_~x~0)) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0)))} is VALID [2022-04-08 11:09:16,316 INFO L290 TraceCheckUtils]: 45: Hoare triple {11210#(and (= (+ main_~x~0 (- 3)) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2) (* (- 2) main_~X~0 main_~y~0) (* (+ (- 1) main_~x~0) main_~Y~0 2)) (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= main_~v~0 (+ (* (- 1) main_~X~0) (* (- 2) main_~X~0 main_~y~0) (* main_~Y~0 4) (* (+ (- 1) main_~x~0) main_~Y~0 2))) (not (< (* main_~Y~0 4) (* main_~X~0 3))) (< (* 2 (* main_~Y~0 main_~x~0)) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {11214#(and (= (* main_~Y~0 3) main_~yx~0) (= (* main_~Y~0 8) (+ (* 2 (* (div (* main_~X~0 2) main_~X~0) main_~X~0)) main_~X~0 main_~v~0)) (= (* (div (* main_~X~0 2) main_~X~0) main_~X~0) main_~xy~0) (< (* main_~Y~0 6) (+ (* 2 (* (div (* main_~X~0 2) main_~X~0) main_~X~0)) main_~X~0)) (not (< (* main_~Y~0 4) (* main_~X~0 3))))} is VALID [2022-04-08 11:09:16,318 INFO L272 TraceCheckUtils]: 46: Hoare triple {11214#(and (= (* main_~Y~0 3) main_~yx~0) (= (* main_~Y~0 8) (+ (* 2 (* (div (* main_~X~0 2) main_~X~0) main_~X~0)) main_~X~0 main_~v~0)) (= (* (div (* main_~X~0 2) main_~X~0) main_~X~0) main_~xy~0) (< (* main_~Y~0 6) (+ (* 2 (* (div (* main_~X~0 2) main_~X~0) main_~X~0)) main_~X~0)) (not (< (* main_~Y~0 4) (* main_~X~0 3))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {11218#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:09:16,318 INFO L290 TraceCheckUtils]: 47: Hoare triple {11218#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {11222#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:09:16,318 INFO L290 TraceCheckUtils]: 48: Hoare triple {11222#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {11064#false} is VALID [2022-04-08 11:09:16,318 INFO L290 TraceCheckUtils]: 49: Hoare triple {11064#false} assume !false; {11064#false} is VALID [2022-04-08 11:09:16,319 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 10 proven. 23 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-08 11:09:16,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:09:20,986 INFO L290 TraceCheckUtils]: 49: Hoare triple {11064#false} assume !false; {11064#false} is VALID [2022-04-08 11:09:20,987 INFO L290 TraceCheckUtils]: 48: Hoare triple {11222#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {11064#false} is VALID [2022-04-08 11:09:20,987 INFO L290 TraceCheckUtils]: 47: Hoare triple {11218#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {11222#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:09:20,992 INFO L272 TraceCheckUtils]: 46: Hoare triple {11238#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {11218#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:09:20,994 INFO L290 TraceCheckUtils]: 45: Hoare triple {11242#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {11238#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} is VALID [2022-04-08 11:09:20,996 INFO L290 TraceCheckUtils]: 44: Hoare triple {11246#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {11242#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:09:20,997 INFO L290 TraceCheckUtils]: 43: Hoare triple {11250#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {11246#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} is VALID [2022-04-08 11:09:20,997 INFO L290 TraceCheckUtils]: 42: Hoare triple {11250#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} assume !!(~x~0 <= ~X~0); {11250#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} is VALID [2022-04-08 11:09:20,998 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {11162#(not (= |__VERIFIER_assert_#in~cond| 0))} {11257#(or (not (< main_~v~0 0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} #65#return; {11250#(or (not (< main_~v~0 0)) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} is VALID [2022-04-08 11:09:20,998 INFO L290 TraceCheckUtils]: 40: Hoare triple {11162#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {11162#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:09:20,999 INFO L290 TraceCheckUtils]: 39: Hoare triple {11267#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} assume !(0 == ~cond); {11162#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:09:20,999 INFO L290 TraceCheckUtils]: 38: Hoare triple {11063#true} ~cond := #in~cond; {11267#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 11:09:20,999 INFO L272 TraceCheckUtils]: 37: Hoare triple {11257#(or (not (< main_~v~0 0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {11063#true} is VALID [2022-04-08 11:09:21,000 INFO L290 TraceCheckUtils]: 36: Hoare triple {11063#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {11257#(or (not (< main_~v~0 0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))) (= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} is VALID [2022-04-08 11:09:21,000 INFO L290 TraceCheckUtils]: 35: Hoare triple {11063#true} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {11063#true} is VALID [2022-04-08 11:09:21,000 INFO L290 TraceCheckUtils]: 34: Hoare triple {11063#true} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {11063#true} is VALID [2022-04-08 11:09:21,000 INFO L290 TraceCheckUtils]: 33: Hoare triple {11063#true} assume !!(~x~0 <= ~X~0); {11063#true} is VALID [2022-04-08 11:09:21,000 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {11063#true} {11063#true} #65#return; {11063#true} is VALID [2022-04-08 11:09:21,000 INFO L290 TraceCheckUtils]: 31: Hoare triple {11063#true} assume true; {11063#true} is VALID [2022-04-08 11:09:21,000 INFO L290 TraceCheckUtils]: 30: Hoare triple {11063#true} assume !(0 == ~cond); {11063#true} is VALID [2022-04-08 11:09:21,001 INFO L290 TraceCheckUtils]: 29: Hoare triple {11063#true} ~cond := #in~cond; {11063#true} is VALID [2022-04-08 11:09:21,001 INFO L272 TraceCheckUtils]: 28: Hoare triple {11063#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {11063#true} is VALID [2022-04-08 11:09:21,001 INFO L290 TraceCheckUtils]: 27: Hoare triple {11063#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {11063#true} is VALID [2022-04-08 11:09:21,001 INFO L290 TraceCheckUtils]: 26: Hoare triple {11063#true} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {11063#true} is VALID [2022-04-08 11:09:21,001 INFO L290 TraceCheckUtils]: 25: Hoare triple {11063#true} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {11063#true} is VALID [2022-04-08 11:09:21,001 INFO L290 TraceCheckUtils]: 24: Hoare triple {11063#true} assume !!(~x~0 <= ~X~0); {11063#true} is VALID [2022-04-08 11:09:21,001 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {11063#true} {11063#true} #65#return; {11063#true} is VALID [2022-04-08 11:09:21,001 INFO L290 TraceCheckUtils]: 22: Hoare triple {11063#true} assume true; {11063#true} is VALID [2022-04-08 11:09:21,001 INFO L290 TraceCheckUtils]: 21: Hoare triple {11063#true} assume !(0 == ~cond); {11063#true} is VALID [2022-04-08 11:09:21,001 INFO L290 TraceCheckUtils]: 20: Hoare triple {11063#true} ~cond := #in~cond; {11063#true} is VALID [2022-04-08 11:09:21,001 INFO L272 TraceCheckUtils]: 19: Hoare triple {11063#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {11063#true} is VALID [2022-04-08 11:09:21,001 INFO L290 TraceCheckUtils]: 18: Hoare triple {11063#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {11063#true} is VALID [2022-04-08 11:09:21,001 INFO L290 TraceCheckUtils]: 17: Hoare triple {11063#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {11063#true} is VALID [2022-04-08 11:09:21,001 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {11063#true} {11063#true} #63#return; {11063#true} is VALID [2022-04-08 11:09:21,002 INFO L290 TraceCheckUtils]: 15: Hoare triple {11063#true} assume true; {11063#true} is VALID [2022-04-08 11:09:21,002 INFO L290 TraceCheckUtils]: 14: Hoare triple {11063#true} assume !(0 == ~cond); {11063#true} is VALID [2022-04-08 11:09:21,002 INFO L290 TraceCheckUtils]: 13: Hoare triple {11063#true} ~cond := #in~cond; {11063#true} is VALID [2022-04-08 11:09:21,002 INFO L272 TraceCheckUtils]: 12: Hoare triple {11063#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {11063#true} is VALID [2022-04-08 11:09:21,002 INFO L290 TraceCheckUtils]: 11: Hoare triple {11063#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {11063#true} is VALID [2022-04-08 11:09:21,002 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {11063#true} {11063#true} #61#return; {11063#true} is VALID [2022-04-08 11:09:21,002 INFO L290 TraceCheckUtils]: 9: Hoare triple {11063#true} assume true; {11063#true} is VALID [2022-04-08 11:09:21,002 INFO L290 TraceCheckUtils]: 8: Hoare triple {11063#true} assume !(0 == ~cond); {11063#true} is VALID [2022-04-08 11:09:21,002 INFO L290 TraceCheckUtils]: 7: Hoare triple {11063#true} ~cond := #in~cond; {11063#true} is VALID [2022-04-08 11:09:21,002 INFO L272 TraceCheckUtils]: 6: Hoare triple {11063#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {11063#true} is VALID [2022-04-08 11:09:21,002 INFO L290 TraceCheckUtils]: 5: Hoare triple {11063#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {11063#true} is VALID [2022-04-08 11:09:21,002 INFO L272 TraceCheckUtils]: 4: Hoare triple {11063#true} call #t~ret8 := main(); {11063#true} is VALID [2022-04-08 11:09:21,002 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {11063#true} {11063#true} #69#return; {11063#true} is VALID [2022-04-08 11:09:21,002 INFO L290 TraceCheckUtils]: 2: Hoare triple {11063#true} assume true; {11063#true} is VALID [2022-04-08 11:09:21,003 INFO L290 TraceCheckUtils]: 1: Hoare triple {11063#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {11063#true} is VALID [2022-04-08 11:09:21,003 INFO L272 TraceCheckUtils]: 0: Hoare triple {11063#true} call ULTIMATE.init(); {11063#true} is VALID [2022-04-08 11:09:21,003 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-04-08 11:09:21,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:09:21,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119976528] [2022-04-08 11:09:21,003 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:09:21,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196442497] [2022-04-08 11:09:21,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196442497] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:09:21,003 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:09:21,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11] total 22 [2022-04-08 11:09:21,004 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:09:21,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1392492750] [2022-04-08 11:09:21,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1392492750] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:09:21,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:09:21,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-04-08 11:09:21,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728420392] [2022-04-08 11:09:21,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:09:21,004 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 2.142857142857143) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 50 [2022-04-08 11:09:21,004 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:09:21,004 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 16 states, 14 states have (on average 2.142857142857143) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:09:21,044 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:09:21,044 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-08 11:09:21,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:09:21,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-08 11:09:21,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2022-04-08 11:09:21,045 INFO L87 Difference]: Start difference. First operand 111 states and 127 transitions. Second operand has 16 states, 14 states have (on average 2.142857142857143) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:09:23,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:09:23,141 INFO L93 Difference]: Finished difference Result 134 states and 156 transitions. [2022-04-08 11:09:23,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-08 11:09:23,142 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 2.142857142857143) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 50 [2022-04-08 11:09:23,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:09:23,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 2.142857142857143) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:09:23,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 77 transitions. [2022-04-08 11:09:23,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 2.142857142857143) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:09:23,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 77 transitions. [2022-04-08 11:09:23,144 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 16 states and 77 transitions. [2022-04-08 11:09:23,228 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 77 edges. 77 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:09:23,229 INFO L225 Difference]: With dead ends: 134 [2022-04-08 11:09:23,230 INFO L226 Difference]: Without dead ends: 121 [2022-04-08 11:09:23,230 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 77 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2022-04-08 11:09:23,230 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 15 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-08 11:09:23,230 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 227 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-08 11:09:23,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-04-08 11:09:23,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-04-08 11:09:23,459 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:09:23,460 INFO L82 GeneralOperation]: Start isEquivalent. First operand 121 states. Second operand has 121 states, 89 states have (on average 1.1235955056179776) internal successors, (100), 93 states have internal predecessors, (100), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-04-08 11:09:23,460 INFO L74 IsIncluded]: Start isIncluded. First operand 121 states. Second operand has 121 states, 89 states have (on average 1.1235955056179776) internal successors, (100), 93 states have internal predecessors, (100), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-04-08 11:09:23,460 INFO L87 Difference]: Start difference. First operand 121 states. Second operand has 121 states, 89 states have (on average 1.1235955056179776) internal successors, (100), 93 states have internal predecessors, (100), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-04-08 11:09:23,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:09:23,462 INFO L93 Difference]: Finished difference Result 121 states and 138 transitions. [2022-04-08 11:09:23,462 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2022-04-08 11:09:23,462 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:09:23,462 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:09:23,462 INFO L74 IsIncluded]: Start isIncluded. First operand has 121 states, 89 states have (on average 1.1235955056179776) internal successors, (100), 93 states have internal predecessors, (100), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) Second operand 121 states. [2022-04-08 11:09:23,463 INFO L87 Difference]: Start difference. First operand has 121 states, 89 states have (on average 1.1235955056179776) internal successors, (100), 93 states have internal predecessors, (100), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) Second operand 121 states. [2022-04-08 11:09:23,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:09:23,464 INFO L93 Difference]: Finished difference Result 121 states and 138 transitions. [2022-04-08 11:09:23,464 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2022-04-08 11:09:23,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:09:23,465 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:09:23,465 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:09:23,465 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:09:23,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 89 states have (on average 1.1235955056179776) internal successors, (100), 93 states have internal predecessors, (100), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-04-08 11:09:23,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2022-04-08 11:09:23,467 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 50 [2022-04-08 11:09:23,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:09:23,467 INFO L478 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2022-04-08 11:09:23,467 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 2.142857142857143) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:09:23,467 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 121 states and 138 transitions. [2022-04-08 11:09:27,819 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 138 edges. 136 inductive. 0 not inductive. 2 times theorem prover too weak to decide inductivity. [2022-04-08 11:09:27,819 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2022-04-08 11:09:27,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-08 11:09:27,819 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:09:27,820 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:09:27,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-04-08 11:09:28,026 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-04-08 11:09:28,027 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:09:28,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:09:28,027 INFO L85 PathProgramCache]: Analyzing trace with hash 431449587, now seen corresponding path program 5 times [2022-04-08 11:09:28,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:09:28,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [803859047] [2022-04-08 11:09:28,028 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:09:28,028 INFO L85 PathProgramCache]: Analyzing trace with hash 431449587, now seen corresponding path program 6 times [2022-04-08 11:09:28,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:09:28,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235215744] [2022-04-08 11:09:28,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:09:28,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:09:28,036 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:09:28,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2047357158] [2022-04-08 11:09:28,036 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-08 11:09:28,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:09:28,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:09:28,037 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:09:28,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-04-08 11:09:28,078 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-04-08 11:09:28,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:09:28,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 54 conjunts are in the unsatisfiable core [2022-04-08 11:09:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:09:28,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:09:28,747 INFO L272 TraceCheckUtils]: 0: Hoare triple {12144#true} call ULTIMATE.init(); {12144#true} is VALID [2022-04-08 11:09:28,748 INFO L290 TraceCheckUtils]: 1: Hoare triple {12144#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {12144#true} is VALID [2022-04-08 11:09:28,748 INFO L290 TraceCheckUtils]: 2: Hoare triple {12144#true} assume true; {12144#true} is VALID [2022-04-08 11:09:28,748 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {12144#true} {12144#true} #69#return; {12144#true} is VALID [2022-04-08 11:09:28,748 INFO L272 TraceCheckUtils]: 4: Hoare triple {12144#true} call #t~ret8 := main(); {12144#true} is VALID [2022-04-08 11:09:28,748 INFO L290 TraceCheckUtils]: 5: Hoare triple {12144#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {12144#true} is VALID [2022-04-08 11:09:28,748 INFO L272 TraceCheckUtils]: 6: Hoare triple {12144#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {12144#true} is VALID [2022-04-08 11:09:28,748 INFO L290 TraceCheckUtils]: 7: Hoare triple {12144#true} ~cond := #in~cond; {12144#true} is VALID [2022-04-08 11:09:28,748 INFO L290 TraceCheckUtils]: 8: Hoare triple {12144#true} assume !(0 == ~cond); {12144#true} is VALID [2022-04-08 11:09:28,748 INFO L290 TraceCheckUtils]: 9: Hoare triple {12144#true} assume true; {12144#true} is VALID [2022-04-08 11:09:28,748 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {12144#true} {12144#true} #61#return; {12144#true} is VALID [2022-04-08 11:09:28,748 INFO L290 TraceCheckUtils]: 11: Hoare triple {12144#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {12144#true} is VALID [2022-04-08 11:09:28,749 INFO L272 TraceCheckUtils]: 12: Hoare triple {12144#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {12144#true} is VALID [2022-04-08 11:09:28,749 INFO L290 TraceCheckUtils]: 13: Hoare triple {12144#true} ~cond := #in~cond; {12144#true} is VALID [2022-04-08 11:09:28,749 INFO L290 TraceCheckUtils]: 14: Hoare triple {12144#true} assume !(0 == ~cond); {12144#true} is VALID [2022-04-08 11:09:28,749 INFO L290 TraceCheckUtils]: 15: Hoare triple {12144#true} assume true; {12144#true} is VALID [2022-04-08 11:09:28,749 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {12144#true} {12144#true} #63#return; {12144#true} is VALID [2022-04-08 11:09:28,749 INFO L290 TraceCheckUtils]: 17: Hoare triple {12144#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {12200#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:09:28,750 INFO L290 TraceCheckUtils]: 18: Hoare triple {12200#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {12200#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:09:28,750 INFO L272 TraceCheckUtils]: 19: Hoare triple {12200#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {12144#true} is VALID [2022-04-08 11:09:28,750 INFO L290 TraceCheckUtils]: 20: Hoare triple {12144#true} ~cond := #in~cond; {12144#true} is VALID [2022-04-08 11:09:28,750 INFO L290 TraceCheckUtils]: 21: Hoare triple {12144#true} assume !(0 == ~cond); {12144#true} is VALID [2022-04-08 11:09:28,750 INFO L290 TraceCheckUtils]: 22: Hoare triple {12144#true} assume true; {12144#true} is VALID [2022-04-08 11:09:28,751 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {12144#true} {12200#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} #65#return; {12200#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:09:28,751 INFO L290 TraceCheckUtils]: 24: Hoare triple {12200#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} assume !!(~x~0 <= ~X~0); {12200#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:09:28,752 INFO L290 TraceCheckUtils]: 25: Hoare triple {12200#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {12225#(and (= main_~x~0 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} is VALID [2022-04-08 11:09:28,752 INFO L290 TraceCheckUtils]: 26: Hoare triple {12225#(and (= main_~x~0 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {12229#(and (= (+ (- 1) main_~x~0) 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} is VALID [2022-04-08 11:09:28,753 INFO L290 TraceCheckUtils]: 27: Hoare triple {12229#(and (= (+ (- 1) main_~x~0) 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {12233#(and (= (+ (- 1) main_~x~0) 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} is VALID [2022-04-08 11:09:28,753 INFO L272 TraceCheckUtils]: 28: Hoare triple {12233#(and (= (+ (- 1) main_~x~0) 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {12144#true} is VALID [2022-04-08 11:09:28,753 INFO L290 TraceCheckUtils]: 29: Hoare triple {12144#true} ~cond := #in~cond; {12240#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:09:28,753 INFO L290 TraceCheckUtils]: 30: Hoare triple {12240#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {12244#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:09:28,754 INFO L290 TraceCheckUtils]: 31: Hoare triple {12244#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {12244#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:09:28,754 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {12244#(not (= |__VERIFIER_assert_#in~cond| 0))} {12233#(and (= (+ (- 1) main_~x~0) 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)))} #65#return; {12229#(and (= (+ (- 1) main_~x~0) 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} is VALID [2022-04-08 11:09:28,755 INFO L290 TraceCheckUtils]: 33: Hoare triple {12229#(and (= (+ (- 1) main_~x~0) 0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} assume !!(~x~0 <= ~X~0); {12254#(and (= (+ (- 1) main_~x~0) 0) (<= main_~x~0 main_~X~0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} is VALID [2022-04-08 11:09:28,755 INFO L290 TraceCheckUtils]: 34: Hoare triple {12254#(and (= (+ (- 1) main_~x~0) 0) (<= main_~x~0 main_~X~0) (= (+ (- 1) main_~y~0) 0) (= main_~v~0 (+ (* main_~X~0 (- 3)) (* main_~Y~0 4))))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {12258#(and (= main_~y~0 2) (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 1) main_~x~0) 0) (<= main_~x~0 main_~X~0))} is VALID [2022-04-08 11:09:28,756 INFO L290 TraceCheckUtils]: 35: Hoare triple {12258#(and (= main_~y~0 2) (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 1) main_~x~0) 0) (<= main_~x~0 main_~X~0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {12262#(and (= main_~y~0 2) (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (<= main_~x~0 (+ main_~X~0 1)))} is VALID [2022-04-08 11:09:28,756 INFO L290 TraceCheckUtils]: 36: Hoare triple {12262#(and (= main_~y~0 2) (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (<= main_~x~0 (+ main_~X~0 1)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {12266#(and (= main_~y~0 2) (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)) (<= main_~x~0 (+ main_~X~0 1)))} is VALID [2022-04-08 11:09:28,756 INFO L272 TraceCheckUtils]: 37: Hoare triple {12266#(and (= main_~y~0 2) (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)) (<= main_~x~0 (+ main_~X~0 1)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {12144#true} is VALID [2022-04-08 11:09:28,757 INFO L290 TraceCheckUtils]: 38: Hoare triple {12144#true} ~cond := #in~cond; {12240#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:09:28,757 INFO L290 TraceCheckUtils]: 39: Hoare triple {12240#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {12244#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:09:28,757 INFO L290 TraceCheckUtils]: 40: Hoare triple {12244#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {12244#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:09:28,758 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {12244#(not (= |__VERIFIER_assert_#in~cond| 0))} {12266#(and (= main_~y~0 2) (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)) (<= main_~x~0 (+ main_~X~0 1)))} #65#return; {12262#(and (= main_~y~0 2) (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (<= main_~x~0 (+ main_~X~0 1)))} is VALID [2022-04-08 11:09:28,758 INFO L290 TraceCheckUtils]: 42: Hoare triple {12262#(and (= main_~y~0 2) (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (<= main_~x~0 (+ main_~X~0 1)))} assume !!(~x~0 <= ~X~0); {12262#(and (= main_~y~0 2) (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (<= main_~x~0 (+ main_~X~0 1)))} is VALID [2022-04-08 11:09:28,759 INFO L290 TraceCheckUtils]: 43: Hoare triple {12262#(and (= main_~y~0 2) (= main_~v~0 (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (<= main_~x~0 (+ main_~X~0 1)))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {12288#(and (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (= main_~y~0 3) (<= main_~x~0 (+ main_~X~0 1)))} is VALID [2022-04-08 11:09:28,760 INFO L290 TraceCheckUtils]: 44: Hoare triple {12288#(and (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ (- 2) main_~x~0) 0) (= main_~y~0 3) (<= main_~x~0 (+ main_~X~0 1)))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {12292#(and (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ main_~x~0 (- 3)) 0) (= main_~y~0 3) (<= main_~x~0 (+ main_~X~0 2)))} is VALID [2022-04-08 11:09:28,760 INFO L290 TraceCheckUtils]: 45: Hoare triple {12292#(and (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (+ main_~x~0 (- 3)) 0) (= main_~y~0 3) (<= main_~x~0 (+ main_~X~0 2)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {12296#(and (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (* main_~Y~0 3) main_~yx~0) (= main_~xy~0 (* main_~X~0 3)) (<= 1 main_~X~0))} is VALID [2022-04-08 11:09:28,761 INFO L272 TraceCheckUtils]: 46: Hoare triple {12296#(and (= (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0)) (+ (* main_~Y~0 6) (* main_~X~0 (- 5)))) (= (* main_~Y~0 3) main_~yx~0) (= main_~xy~0 (* main_~X~0 3)) (<= 1 main_~X~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {12300#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:09:28,761 INFO L290 TraceCheckUtils]: 47: Hoare triple {12300#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {12304#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:09:28,762 INFO L290 TraceCheckUtils]: 48: Hoare triple {12304#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {12145#false} is VALID [2022-04-08 11:09:28,762 INFO L290 TraceCheckUtils]: 49: Hoare triple {12145#false} assume !false; {12145#false} is VALID [2022-04-08 11:09:28,762 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 10 proven. 23 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-08 11:09:28,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:09:33,242 INFO L290 TraceCheckUtils]: 49: Hoare triple {12145#false} assume !false; {12145#false} is VALID [2022-04-08 11:09:33,242 INFO L290 TraceCheckUtils]: 48: Hoare triple {12304#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {12145#false} is VALID [2022-04-08 11:09:33,243 INFO L290 TraceCheckUtils]: 47: Hoare triple {12300#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {12304#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:09:33,243 INFO L272 TraceCheckUtils]: 46: Hoare triple {12320#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {12300#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:09:33,244 INFO L290 TraceCheckUtils]: 45: Hoare triple {12324#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {12320#(= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))} is VALID [2022-04-08 11:09:33,246 INFO L290 TraceCheckUtils]: 44: Hoare triple {12328#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {12324#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:09:33,248 INFO L290 TraceCheckUtils]: 43: Hoare triple {12324#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {12328#(= (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))} is VALID [2022-04-08 11:09:33,248 INFO L290 TraceCheckUtils]: 42: Hoare triple {12324#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} assume !!(~x~0 <= ~X~0); {12324#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:09:33,249 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {12244#(not (= |__VERIFIER_assert_#in~cond| 0))} {12338#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} #65#return; {12324#(= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:09:33,249 INFO L290 TraceCheckUtils]: 40: Hoare triple {12244#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {12244#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:09:33,250 INFO L290 TraceCheckUtils]: 39: Hoare triple {12348#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} assume !(0 == ~cond); {12244#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:09:33,250 INFO L290 TraceCheckUtils]: 38: Hoare triple {12144#true} ~cond := #in~cond; {12348#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 11:09:33,250 INFO L272 TraceCheckUtils]: 37: Hoare triple {12338#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {12144#true} is VALID [2022-04-08 11:09:33,251 INFO L290 TraceCheckUtils]: 36: Hoare triple {12144#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {12338#(or (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))))} is VALID [2022-04-08 11:09:33,251 INFO L290 TraceCheckUtils]: 35: Hoare triple {12144#true} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {12144#true} is VALID [2022-04-08 11:09:33,251 INFO L290 TraceCheckUtils]: 34: Hoare triple {12144#true} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {12144#true} is VALID [2022-04-08 11:09:33,251 INFO L290 TraceCheckUtils]: 33: Hoare triple {12144#true} assume !!(~x~0 <= ~X~0); {12144#true} is VALID [2022-04-08 11:09:33,251 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {12144#true} {12144#true} #65#return; {12144#true} is VALID [2022-04-08 11:09:33,251 INFO L290 TraceCheckUtils]: 31: Hoare triple {12144#true} assume true; {12144#true} is VALID [2022-04-08 11:09:33,251 INFO L290 TraceCheckUtils]: 30: Hoare triple {12144#true} assume !(0 == ~cond); {12144#true} is VALID [2022-04-08 11:09:33,252 INFO L290 TraceCheckUtils]: 29: Hoare triple {12144#true} ~cond := #in~cond; {12144#true} is VALID [2022-04-08 11:09:33,252 INFO L272 TraceCheckUtils]: 28: Hoare triple {12144#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {12144#true} is VALID [2022-04-08 11:09:33,252 INFO L290 TraceCheckUtils]: 27: Hoare triple {12144#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {12144#true} is VALID [2022-04-08 11:09:33,252 INFO L290 TraceCheckUtils]: 26: Hoare triple {12144#true} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {12144#true} is VALID [2022-04-08 11:09:33,252 INFO L290 TraceCheckUtils]: 25: Hoare triple {12144#true} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {12144#true} is VALID [2022-04-08 11:09:33,252 INFO L290 TraceCheckUtils]: 24: Hoare triple {12144#true} assume !!(~x~0 <= ~X~0); {12144#true} is VALID [2022-04-08 11:09:33,252 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {12144#true} {12144#true} #65#return; {12144#true} is VALID [2022-04-08 11:09:33,252 INFO L290 TraceCheckUtils]: 22: Hoare triple {12144#true} assume true; {12144#true} is VALID [2022-04-08 11:09:33,252 INFO L290 TraceCheckUtils]: 21: Hoare triple {12144#true} assume !(0 == ~cond); {12144#true} is VALID [2022-04-08 11:09:33,252 INFO L290 TraceCheckUtils]: 20: Hoare triple {12144#true} ~cond := #in~cond; {12144#true} is VALID [2022-04-08 11:09:33,252 INFO L272 TraceCheckUtils]: 19: Hoare triple {12144#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {12144#true} is VALID [2022-04-08 11:09:33,252 INFO L290 TraceCheckUtils]: 18: Hoare triple {12144#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {12144#true} is VALID [2022-04-08 11:09:33,252 INFO L290 TraceCheckUtils]: 17: Hoare triple {12144#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {12144#true} is VALID [2022-04-08 11:09:33,252 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {12144#true} {12144#true} #63#return; {12144#true} is VALID [2022-04-08 11:09:33,253 INFO L290 TraceCheckUtils]: 15: Hoare triple {12144#true} assume true; {12144#true} is VALID [2022-04-08 11:09:33,253 INFO L290 TraceCheckUtils]: 14: Hoare triple {12144#true} assume !(0 == ~cond); {12144#true} is VALID [2022-04-08 11:09:33,253 INFO L290 TraceCheckUtils]: 13: Hoare triple {12144#true} ~cond := #in~cond; {12144#true} is VALID [2022-04-08 11:09:33,253 INFO L272 TraceCheckUtils]: 12: Hoare triple {12144#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {12144#true} is VALID [2022-04-08 11:09:33,253 INFO L290 TraceCheckUtils]: 11: Hoare triple {12144#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {12144#true} is VALID [2022-04-08 11:09:33,253 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {12144#true} {12144#true} #61#return; {12144#true} is VALID [2022-04-08 11:09:33,253 INFO L290 TraceCheckUtils]: 9: Hoare triple {12144#true} assume true; {12144#true} is VALID [2022-04-08 11:09:33,253 INFO L290 TraceCheckUtils]: 8: Hoare triple {12144#true} assume !(0 == ~cond); {12144#true} is VALID [2022-04-08 11:09:33,253 INFO L290 TraceCheckUtils]: 7: Hoare triple {12144#true} ~cond := #in~cond; {12144#true} is VALID [2022-04-08 11:09:33,253 INFO L272 TraceCheckUtils]: 6: Hoare triple {12144#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {12144#true} is VALID [2022-04-08 11:09:33,253 INFO L290 TraceCheckUtils]: 5: Hoare triple {12144#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {12144#true} is VALID [2022-04-08 11:09:33,253 INFO L272 TraceCheckUtils]: 4: Hoare triple {12144#true} call #t~ret8 := main(); {12144#true} is VALID [2022-04-08 11:09:33,253 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {12144#true} {12144#true} #69#return; {12144#true} is VALID [2022-04-08 11:09:33,253 INFO L290 TraceCheckUtils]: 2: Hoare triple {12144#true} assume true; {12144#true} is VALID [2022-04-08 11:09:33,254 INFO L290 TraceCheckUtils]: 1: Hoare triple {12144#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {12144#true} is VALID [2022-04-08 11:09:33,254 INFO L272 TraceCheckUtils]: 0: Hoare triple {12144#true} call ULTIMATE.init(); {12144#true} is VALID [2022-04-08 11:09:33,254 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-04-08 11:09:33,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:09:33,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235215744] [2022-04-08 11:09:33,254 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:09:33,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047357158] [2022-04-08 11:09:33,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047357158] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:09:33,254 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:09:33,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10] total 22 [2022-04-08 11:09:33,255 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:09:33,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [803859047] [2022-04-08 11:09:33,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [803859047] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:09:33,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:09:33,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-04-08 11:09:33,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487250630] [2022-04-08 11:09:33,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:09:33,255 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 16 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 50 [2022-04-08 11:09:33,255 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:09:33,255 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 16 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:09:33,303 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:09:33,303 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-08 11:09:33,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:09:33,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-08 11:09:33,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2022-04-08 11:09:33,304 INFO L87 Difference]: Start difference. First operand 121 states and 138 transitions. Second operand has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 16 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:09:34,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:09:34,729 INFO L93 Difference]: Finished difference Result 142 states and 159 transitions. [2022-04-08 11:09:34,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-08 11:09:34,729 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 16 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 50 [2022-04-08 11:09:34,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:09:34,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 16 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:09:34,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 65 transitions. [2022-04-08 11:09:34,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 16 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:09:34,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 65 transitions. [2022-04-08 11:09:34,735 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 17 states and 65 transitions. [2022-04-08 11:09:34,793 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:09:34,795 INFO L225 Difference]: With dead ends: 142 [2022-04-08 11:09:34,795 INFO L226 Difference]: Without dead ends: 140 [2022-04-08 11:09:34,796 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 75 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2022-04-08 11:09:34,796 INFO L913 BasicCegarLoop]: 28 mSDtfsCounter, 20 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-08 11:09:34,796 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 214 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-08 11:09:34,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-04-08 11:09:35,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 129. [2022-04-08 11:09:35,032 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:09:35,032 INFO L82 GeneralOperation]: Start isEquivalent. First operand 140 states. Second operand has 129 states, 95 states have (on average 1.1157894736842104) internal successors, (106), 99 states have internal predecessors, (106), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-04-08 11:09:35,033 INFO L74 IsIncluded]: Start isIncluded. First operand 140 states. Second operand has 129 states, 95 states have (on average 1.1157894736842104) internal successors, (106), 99 states have internal predecessors, (106), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-04-08 11:09:35,033 INFO L87 Difference]: Start difference. First operand 140 states. Second operand has 129 states, 95 states have (on average 1.1157894736842104) internal successors, (106), 99 states have internal predecessors, (106), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-04-08 11:09:35,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:09:35,035 INFO L93 Difference]: Finished difference Result 140 states and 157 transitions. [2022-04-08 11:09:35,035 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 157 transitions. [2022-04-08 11:09:35,035 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:09:35,035 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:09:35,035 INFO L74 IsIncluded]: Start isIncluded. First operand has 129 states, 95 states have (on average 1.1157894736842104) internal successors, (106), 99 states have internal predecessors, (106), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) Second operand 140 states. [2022-04-08 11:09:35,036 INFO L87 Difference]: Start difference. First operand has 129 states, 95 states have (on average 1.1157894736842104) internal successors, (106), 99 states have internal predecessors, (106), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) Second operand 140 states. [2022-04-08 11:09:35,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:09:35,037 INFO L93 Difference]: Finished difference Result 140 states and 157 transitions. [2022-04-08 11:09:35,037 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 157 transitions. [2022-04-08 11:09:35,038 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:09:35,038 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:09:35,038 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:09:35,038 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:09:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 95 states have (on average 1.1157894736842104) internal successors, (106), 99 states have internal predecessors, (106), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-04-08 11:09:35,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 144 transitions. [2022-04-08 11:09:35,040 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 144 transitions. Word has length 50 [2022-04-08 11:09:35,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:09:35,040 INFO L478 AbstractCegarLoop]: Abstraction has 129 states and 144 transitions. [2022-04-08 11:09:35,040 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 16 states have internal predecessors, (30), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-04-08 11:09:35,040 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 129 states and 144 transitions. [2022-04-08 11:09:39,399 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 144 edges. 142 inductive. 0 not inductive. 2 times theorem prover too weak to decide inductivity. [2022-04-08 11:09:39,400 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 144 transitions. [2022-04-08 11:09:39,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-04-08 11:09:39,400 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:09:39,400 INFO L499 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:09:39,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-04-08 11:09:39,605 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-04-08 11:09:39,605 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:09:39,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:09:39,605 INFO L85 PathProgramCache]: Analyzing trace with hash 850213676, now seen corresponding path program 3 times [2022-04-08 11:09:39,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:09:39,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1561695029] [2022-04-08 11:09:39,606 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:09:39,606 INFO L85 PathProgramCache]: Analyzing trace with hash 850213676, now seen corresponding path program 4 times [2022-04-08 11:09:39,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:09:39,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819370335] [2022-04-08 11:09:39,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:09:39,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:09:39,615 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:09:39,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602078231] [2022-04-08 11:09:39,615 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-08 11:09:39,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:09:39,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:09:39,616 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:09:39,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-04-08 11:09:39,651 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-08 11:09:39,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:09:39,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 10 conjunts are in the unsatisfiable core [2022-04-08 11:09:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:09:39,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:09:40,472 INFO L272 TraceCheckUtils]: 0: Hoare triple {13295#true} call ULTIMATE.init(); {13295#true} is VALID [2022-04-08 11:09:40,473 INFO L290 TraceCheckUtils]: 1: Hoare triple {13295#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {13295#true} is VALID [2022-04-08 11:09:40,473 INFO L290 TraceCheckUtils]: 2: Hoare triple {13295#true} assume true; {13295#true} is VALID [2022-04-08 11:09:40,473 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {13295#true} {13295#true} #69#return; {13295#true} is VALID [2022-04-08 11:09:40,473 INFO L272 TraceCheckUtils]: 4: Hoare triple {13295#true} call #t~ret8 := main(); {13295#true} is VALID [2022-04-08 11:09:40,473 INFO L290 TraceCheckUtils]: 5: Hoare triple {13295#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {13295#true} is VALID [2022-04-08 11:09:40,473 INFO L272 TraceCheckUtils]: 6: Hoare triple {13295#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {13295#true} is VALID [2022-04-08 11:09:40,473 INFO L290 TraceCheckUtils]: 7: Hoare triple {13295#true} ~cond := #in~cond; {13295#true} is VALID [2022-04-08 11:09:40,473 INFO L290 TraceCheckUtils]: 8: Hoare triple {13295#true} assume !(0 == ~cond); {13295#true} is VALID [2022-04-08 11:09:40,473 INFO L290 TraceCheckUtils]: 9: Hoare triple {13295#true} assume true; {13295#true} is VALID [2022-04-08 11:09:40,473 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {13295#true} {13295#true} #61#return; {13295#true} is VALID [2022-04-08 11:09:40,473 INFO L290 TraceCheckUtils]: 11: Hoare triple {13295#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {13295#true} is VALID [2022-04-08 11:09:40,474 INFO L272 TraceCheckUtils]: 12: Hoare triple {13295#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {13295#true} is VALID [2022-04-08 11:09:40,474 INFO L290 TraceCheckUtils]: 13: Hoare triple {13295#true} ~cond := #in~cond; {13295#true} is VALID [2022-04-08 11:09:40,474 INFO L290 TraceCheckUtils]: 14: Hoare triple {13295#true} assume !(0 == ~cond); {13295#true} is VALID [2022-04-08 11:09:40,474 INFO L290 TraceCheckUtils]: 15: Hoare triple {13295#true} assume true; {13295#true} is VALID [2022-04-08 11:09:40,474 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {13295#true} {13295#true} #63#return; {13295#true} is VALID [2022-04-08 11:09:40,474 INFO L290 TraceCheckUtils]: 17: Hoare triple {13295#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {13351#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} is VALID [2022-04-08 11:09:40,475 INFO L290 TraceCheckUtils]: 18: Hoare triple {13351#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {13351#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} is VALID [2022-04-08 11:09:40,475 INFO L272 TraceCheckUtils]: 19: Hoare triple {13351#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {13295#true} is VALID [2022-04-08 11:09:40,475 INFO L290 TraceCheckUtils]: 20: Hoare triple {13295#true} ~cond := #in~cond; {13295#true} is VALID [2022-04-08 11:09:40,475 INFO L290 TraceCheckUtils]: 21: Hoare triple {13295#true} assume !(0 == ~cond); {13295#true} is VALID [2022-04-08 11:09:40,475 INFO L290 TraceCheckUtils]: 22: Hoare triple {13295#true} assume true; {13295#true} is VALID [2022-04-08 11:09:40,476 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {13295#true} {13351#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} #65#return; {13351#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} is VALID [2022-04-08 11:09:40,476 INFO L290 TraceCheckUtils]: 24: Hoare triple {13351#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} assume !!(~x~0 <= ~X~0); {13351#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} is VALID [2022-04-08 11:09:40,477 INFO L290 TraceCheckUtils]: 25: Hoare triple {13351#(and (<= main_~x~0 0) (<= (* main_~Y~0 2) (+ main_~X~0 main_~v~0)))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {13376#(and (<= (* main_~Y~0 4) (+ main_~X~0 main_~v~0)) (<= main_~x~0 0))} is VALID [2022-04-08 11:09:40,478 INFO L290 TraceCheckUtils]: 26: Hoare triple {13376#(and (<= (* main_~Y~0 4) (+ main_~X~0 main_~v~0)) (<= main_~x~0 0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {13380#(and (<= (* main_~Y~0 4) (+ main_~X~0 main_~v~0)) (<= main_~x~0 1))} is VALID [2022-04-08 11:09:40,478 INFO L290 TraceCheckUtils]: 27: Hoare triple {13380#(and (<= (* main_~Y~0 4) (+ main_~X~0 main_~v~0)) (<= main_~x~0 1))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {13380#(and (<= (* main_~Y~0 4) (+ main_~X~0 main_~v~0)) (<= main_~x~0 1))} is VALID [2022-04-08 11:09:40,478 INFO L272 TraceCheckUtils]: 28: Hoare triple {13380#(and (<= (* main_~Y~0 4) (+ main_~X~0 main_~v~0)) (<= main_~x~0 1))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {13295#true} is VALID [2022-04-08 11:09:40,479 INFO L290 TraceCheckUtils]: 29: Hoare triple {13295#true} ~cond := #in~cond; {13295#true} is VALID [2022-04-08 11:09:40,479 INFO L290 TraceCheckUtils]: 30: Hoare triple {13295#true} assume !(0 == ~cond); {13295#true} is VALID [2022-04-08 11:09:40,479 INFO L290 TraceCheckUtils]: 31: Hoare triple {13295#true} assume true; {13295#true} is VALID [2022-04-08 11:09:40,479 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {13295#true} {13380#(and (<= (* main_~Y~0 4) (+ main_~X~0 main_~v~0)) (<= main_~x~0 1))} #65#return; {13380#(and (<= (* main_~Y~0 4) (+ main_~X~0 main_~v~0)) (<= main_~x~0 1))} is VALID [2022-04-08 11:09:40,480 INFO L290 TraceCheckUtils]: 33: Hoare triple {13380#(and (<= (* main_~Y~0 4) (+ main_~X~0 main_~v~0)) (<= main_~x~0 1))} assume !!(~x~0 <= ~X~0); {13380#(and (<= (* main_~Y~0 4) (+ main_~X~0 main_~v~0)) (<= main_~x~0 1))} is VALID [2022-04-08 11:09:40,481 INFO L290 TraceCheckUtils]: 34: Hoare triple {13380#(and (<= (* main_~Y~0 4) (+ main_~X~0 main_~v~0)) (<= main_~x~0 1))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {13405#(and (<= main_~x~0 1) (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 4) 1)))} is VALID [2022-04-08 11:09:40,482 INFO L290 TraceCheckUtils]: 35: Hoare triple {13405#(and (<= main_~x~0 1) (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 4) 1)))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {13409#(and (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 4) 1)) (<= main_~x~0 2))} is VALID [2022-04-08 11:09:40,482 INFO L290 TraceCheckUtils]: 36: Hoare triple {13409#(and (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 4) 1)) (<= main_~x~0 2))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {13409#(and (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 4) 1)) (<= main_~x~0 2))} is VALID [2022-04-08 11:09:40,482 INFO L272 TraceCheckUtils]: 37: Hoare triple {13409#(and (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 4) 1)) (<= main_~x~0 2))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {13295#true} is VALID [2022-04-08 11:09:40,482 INFO L290 TraceCheckUtils]: 38: Hoare triple {13295#true} ~cond := #in~cond; {13295#true} is VALID [2022-04-08 11:09:40,482 INFO L290 TraceCheckUtils]: 39: Hoare triple {13295#true} assume !(0 == ~cond); {13295#true} is VALID [2022-04-08 11:09:40,482 INFO L290 TraceCheckUtils]: 40: Hoare triple {13295#true} assume true; {13295#true} is VALID [2022-04-08 11:09:40,483 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {13295#true} {13409#(and (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 4) 1)) (<= main_~x~0 2))} #65#return; {13409#(and (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 4) 1)) (<= main_~x~0 2))} is VALID [2022-04-08 11:09:40,483 INFO L290 TraceCheckUtils]: 42: Hoare triple {13409#(and (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 4) 1)) (<= main_~x~0 2))} assume !!(~x~0 <= ~X~0); {13409#(and (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 4) 1)) (<= main_~x~0 2))} is VALID [2022-04-08 11:09:40,484 INFO L290 TraceCheckUtils]: 43: Hoare triple {13409#(and (< (div (+ (- 1) (* (- 1) main_~v~0)) (- 2)) (+ (div (+ (- 1) main_~X~0) 4) 1)) (<= main_~x~0 2))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {13434#(and (< 0 (div (+ (- 1) main_~X~0) 4)) (<= main_~x~0 2))} is VALID [2022-04-08 11:09:40,485 INFO L290 TraceCheckUtils]: 44: Hoare triple {13434#(and (< 0 (div (+ (- 1) main_~X~0) 4)) (<= main_~x~0 2))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {13438#(and (<= main_~x~0 3) (< 0 (div (+ (- 1) main_~X~0) 4)))} is VALID [2022-04-08 11:09:40,486 INFO L290 TraceCheckUtils]: 45: Hoare triple {13438#(and (<= main_~x~0 3) (< 0 (div (+ (- 1) main_~X~0) 4)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {13438#(and (<= main_~x~0 3) (< 0 (div (+ (- 1) main_~X~0) 4)))} is VALID [2022-04-08 11:09:40,486 INFO L272 TraceCheckUtils]: 46: Hoare triple {13438#(and (<= main_~x~0 3) (< 0 (div (+ (- 1) main_~X~0) 4)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {13295#true} is VALID [2022-04-08 11:09:40,486 INFO L290 TraceCheckUtils]: 47: Hoare triple {13295#true} ~cond := #in~cond; {13295#true} is VALID [2022-04-08 11:09:40,486 INFO L290 TraceCheckUtils]: 48: Hoare triple {13295#true} assume !(0 == ~cond); {13295#true} is VALID [2022-04-08 11:09:40,486 INFO L290 TraceCheckUtils]: 49: Hoare triple {13295#true} assume true; {13295#true} is VALID [2022-04-08 11:09:40,487 INFO L284 TraceCheckUtils]: 50: Hoare quadruple {13295#true} {13438#(and (<= main_~x~0 3) (< 0 (div (+ (- 1) main_~X~0) 4)))} #65#return; {13438#(and (<= main_~x~0 3) (< 0 (div (+ (- 1) main_~X~0) 4)))} is VALID [2022-04-08 11:09:40,487 INFO L290 TraceCheckUtils]: 51: Hoare triple {13438#(and (<= main_~x~0 3) (< 0 (div (+ (- 1) main_~X~0) 4)))} assume !(~x~0 <= ~X~0); {13296#false} is VALID [2022-04-08 11:09:40,487 INFO L290 TraceCheckUtils]: 52: Hoare triple {13296#false} ~xy~0 := ~x~0 * ~y~0;~yx~0 := ~Y~0 * ~x~0; {13296#false} is VALID [2022-04-08 11:09:40,488 INFO L272 TraceCheckUtils]: 53: Hoare triple {13296#false} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 + 2 * ~y~0 then 1 else 0)); {13296#false} is VALID [2022-04-08 11:09:40,488 INFO L290 TraceCheckUtils]: 54: Hoare triple {13296#false} ~cond := #in~cond; {13296#false} is VALID [2022-04-08 11:09:40,488 INFO L290 TraceCheckUtils]: 55: Hoare triple {13296#false} assume 0 == ~cond; {13296#false} is VALID [2022-04-08 11:09:40,488 INFO L290 TraceCheckUtils]: 56: Hoare triple {13296#false} assume !false; {13296#false} is VALID [2022-04-08 11:09:40,488 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-04-08 11:09:40,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:09:40,878 INFO L290 TraceCheckUtils]: 56: Hoare triple {13296#false} assume !false; {13296#false} is VALID [2022-04-08 11:09:40,879 INFO L290 TraceCheckUtils]: 55: Hoare triple {13296#false} assume 0 == ~cond; {13296#false} is VALID [2022-04-08 11:09:40,879 INFO L290 TraceCheckUtils]: 54: Hoare triple {13296#false} ~cond := #in~cond; {13296#false} is VALID [2022-04-08 11:09:40,879 INFO L272 TraceCheckUtils]: 53: Hoare triple {13296#false} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 + 2 * ~y~0 then 1 else 0)); {13296#false} is VALID [2022-04-08 11:09:40,879 INFO L290 TraceCheckUtils]: 52: Hoare triple {13296#false} ~xy~0 := ~x~0 * ~y~0;~yx~0 := ~Y~0 * ~x~0; {13296#false} is VALID [2022-04-08 11:09:40,879 INFO L290 TraceCheckUtils]: 51: Hoare triple {13490#(<= main_~x~0 main_~X~0)} assume !(~x~0 <= ~X~0); {13296#false} is VALID [2022-04-08 11:09:40,880 INFO L284 TraceCheckUtils]: 50: Hoare quadruple {13295#true} {13490#(<= main_~x~0 main_~X~0)} #65#return; {13490#(<= main_~x~0 main_~X~0)} is VALID [2022-04-08 11:09:40,880 INFO L290 TraceCheckUtils]: 49: Hoare triple {13295#true} assume true; {13295#true} is VALID [2022-04-08 11:09:40,880 INFO L290 TraceCheckUtils]: 48: Hoare triple {13295#true} assume !(0 == ~cond); {13295#true} is VALID [2022-04-08 11:09:40,880 INFO L290 TraceCheckUtils]: 47: Hoare triple {13295#true} ~cond := #in~cond; {13295#true} is VALID [2022-04-08 11:09:40,880 INFO L272 TraceCheckUtils]: 46: Hoare triple {13490#(<= main_~x~0 main_~X~0)} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {13295#true} is VALID [2022-04-08 11:09:40,880 INFO L290 TraceCheckUtils]: 45: Hoare triple {13490#(<= main_~x~0 main_~X~0)} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {13490#(<= main_~x~0 main_~X~0)} is VALID [2022-04-08 11:09:40,881 INFO L290 TraceCheckUtils]: 44: Hoare triple {13512#(<= (+ main_~x~0 1) main_~X~0)} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {13490#(<= main_~x~0 main_~X~0)} is VALID [2022-04-08 11:09:40,882 INFO L290 TraceCheckUtils]: 43: Hoare triple {13516#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {13512#(<= (+ main_~x~0 1) main_~X~0)} is VALID [2022-04-08 11:09:40,882 INFO L290 TraceCheckUtils]: 42: Hoare triple {13516#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} assume !!(~x~0 <= ~X~0); {13516#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} is VALID [2022-04-08 11:09:40,882 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {13295#true} {13516#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} #65#return; {13516#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} is VALID [2022-04-08 11:09:40,883 INFO L290 TraceCheckUtils]: 40: Hoare triple {13295#true} assume true; {13295#true} is VALID [2022-04-08 11:09:40,883 INFO L290 TraceCheckUtils]: 39: Hoare triple {13295#true} assume !(0 == ~cond); {13295#true} is VALID [2022-04-08 11:09:40,883 INFO L290 TraceCheckUtils]: 38: Hoare triple {13295#true} ~cond := #in~cond; {13295#true} is VALID [2022-04-08 11:09:40,892 INFO L272 TraceCheckUtils]: 37: Hoare triple {13516#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {13295#true} is VALID [2022-04-08 11:09:40,892 INFO L290 TraceCheckUtils]: 36: Hoare triple {13516#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {13516#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} is VALID [2022-04-08 11:09:40,893 INFO L290 TraceCheckUtils]: 35: Hoare triple {13541#(or (<= (+ main_~x~0 2) main_~X~0) (< main_~v~0 0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {13516#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0))} is VALID [2022-04-08 11:09:40,894 INFO L290 TraceCheckUtils]: 34: Hoare triple {13545#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {13541#(or (<= (+ main_~x~0 2) main_~X~0) (< main_~v~0 0))} is VALID [2022-04-08 11:09:40,894 INFO L290 TraceCheckUtils]: 33: Hoare triple {13545#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} assume !!(~x~0 <= ~X~0); {13545#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} is VALID [2022-04-08 11:09:40,895 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {13295#true} {13545#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} #65#return; {13545#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} is VALID [2022-04-08 11:09:40,895 INFO L290 TraceCheckUtils]: 31: Hoare triple {13295#true} assume true; {13295#true} is VALID [2022-04-08 11:09:40,895 INFO L290 TraceCheckUtils]: 30: Hoare triple {13295#true} assume !(0 == ~cond); {13295#true} is VALID [2022-04-08 11:09:40,895 INFO L290 TraceCheckUtils]: 29: Hoare triple {13295#true} ~cond := #in~cond; {13295#true} is VALID [2022-04-08 11:09:40,895 INFO L272 TraceCheckUtils]: 28: Hoare triple {13545#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {13295#true} is VALID [2022-04-08 11:09:40,895 INFO L290 TraceCheckUtils]: 27: Hoare triple {13545#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {13545#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} is VALID [2022-04-08 11:09:40,896 INFO L290 TraceCheckUtils]: 26: Hoare triple {13570#(or (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)) (<= (+ main_~x~0 3) main_~X~0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {13545#(or (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)))} is VALID [2022-04-08 11:09:40,897 INFO L290 TraceCheckUtils]: 25: Hoare triple {13574#(or (<= (+ main_~x~0 3) main_~X~0) (<= 0 (+ main_~v~0 (* main_~Y~0 2))) (<= (* main_~Y~0 2) 0))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {13570#(or (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)) (<= (+ main_~x~0 3) main_~X~0))} is VALID [2022-04-08 11:09:40,897 INFO L290 TraceCheckUtils]: 24: Hoare triple {13574#(or (<= (+ main_~x~0 3) main_~X~0) (<= 0 (+ main_~v~0 (* main_~Y~0 2))) (<= (* main_~Y~0 2) 0))} assume !!(~x~0 <= ~X~0); {13574#(or (<= (+ main_~x~0 3) main_~X~0) (<= 0 (+ main_~v~0 (* main_~Y~0 2))) (<= (* main_~Y~0 2) 0))} is VALID [2022-04-08 11:09:40,898 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {13295#true} {13574#(or (<= (+ main_~x~0 3) main_~X~0) (<= 0 (+ main_~v~0 (* main_~Y~0 2))) (<= (* main_~Y~0 2) 0))} #65#return; {13574#(or (<= (+ main_~x~0 3) main_~X~0) (<= 0 (+ main_~v~0 (* main_~Y~0 2))) (<= (* main_~Y~0 2) 0))} is VALID [2022-04-08 11:09:40,898 INFO L290 TraceCheckUtils]: 22: Hoare triple {13295#true} assume true; {13295#true} is VALID [2022-04-08 11:09:40,898 INFO L290 TraceCheckUtils]: 21: Hoare triple {13295#true} assume !(0 == ~cond); {13295#true} is VALID [2022-04-08 11:09:40,898 INFO L290 TraceCheckUtils]: 20: Hoare triple {13295#true} ~cond := #in~cond; {13295#true} is VALID [2022-04-08 11:09:40,898 INFO L272 TraceCheckUtils]: 19: Hoare triple {13574#(or (<= (+ main_~x~0 3) main_~X~0) (<= 0 (+ main_~v~0 (* main_~Y~0 2))) (<= (* main_~Y~0 2) 0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {13295#true} is VALID [2022-04-08 11:09:40,899 INFO L290 TraceCheckUtils]: 18: Hoare triple {13574#(or (<= (+ main_~x~0 3) main_~X~0) (<= 0 (+ main_~v~0 (* main_~Y~0 2))) (<= (* main_~Y~0 2) 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {13574#(or (<= (+ main_~x~0 3) main_~X~0) (<= 0 (+ main_~v~0 (* main_~Y~0 2))) (<= (* main_~Y~0 2) 0))} is VALID [2022-04-08 11:09:40,903 INFO L290 TraceCheckUtils]: 17: Hoare triple {13295#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {13574#(or (<= (+ main_~x~0 3) main_~X~0) (<= 0 (+ main_~v~0 (* main_~Y~0 2))) (<= (* main_~Y~0 2) 0))} is VALID [2022-04-08 11:09:40,903 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {13295#true} {13295#true} #63#return; {13295#true} is VALID [2022-04-08 11:09:40,903 INFO L290 TraceCheckUtils]: 15: Hoare triple {13295#true} assume true; {13295#true} is VALID [2022-04-08 11:09:40,903 INFO L290 TraceCheckUtils]: 14: Hoare triple {13295#true} assume !(0 == ~cond); {13295#true} is VALID [2022-04-08 11:09:40,903 INFO L290 TraceCheckUtils]: 13: Hoare triple {13295#true} ~cond := #in~cond; {13295#true} is VALID [2022-04-08 11:09:40,903 INFO L272 TraceCheckUtils]: 12: Hoare triple {13295#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {13295#true} is VALID [2022-04-08 11:09:40,903 INFO L290 TraceCheckUtils]: 11: Hoare triple {13295#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {13295#true} is VALID [2022-04-08 11:09:40,903 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {13295#true} {13295#true} #61#return; {13295#true} is VALID [2022-04-08 11:09:40,904 INFO L290 TraceCheckUtils]: 9: Hoare triple {13295#true} assume true; {13295#true} is VALID [2022-04-08 11:09:40,904 INFO L290 TraceCheckUtils]: 8: Hoare triple {13295#true} assume !(0 == ~cond); {13295#true} is VALID [2022-04-08 11:09:40,904 INFO L290 TraceCheckUtils]: 7: Hoare triple {13295#true} ~cond := #in~cond; {13295#true} is VALID [2022-04-08 11:09:40,904 INFO L272 TraceCheckUtils]: 6: Hoare triple {13295#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {13295#true} is VALID [2022-04-08 11:09:40,904 INFO L290 TraceCheckUtils]: 5: Hoare triple {13295#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {13295#true} is VALID [2022-04-08 11:09:40,904 INFO L272 TraceCheckUtils]: 4: Hoare triple {13295#true} call #t~ret8 := main(); {13295#true} is VALID [2022-04-08 11:09:40,904 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {13295#true} {13295#true} #69#return; {13295#true} is VALID [2022-04-08 11:09:40,904 INFO L290 TraceCheckUtils]: 2: Hoare triple {13295#true} assume true; {13295#true} is VALID [2022-04-08 11:09:40,904 INFO L290 TraceCheckUtils]: 1: Hoare triple {13295#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {13295#true} is VALID [2022-04-08 11:09:40,904 INFO L272 TraceCheckUtils]: 0: Hoare triple {13295#true} call ULTIMATE.init(); {13295#true} is VALID [2022-04-08 11:09:40,904 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-04-08 11:09:40,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:09:40,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819370335] [2022-04-08 11:09:40,905 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:09:40,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602078231] [2022-04-08 11:09:40,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602078231] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:09:40,905 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:09:40,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-04-08 11:09:40,905 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:09:40,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1561695029] [2022-04-08 11:09:40,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1561695029] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:09:40,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:09:40,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-08 11:09:40,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980451101] [2022-04-08 11:09:40,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:09:40,906 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 6 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 57 [2022-04-08 11:09:40,907 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:09:40,907 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 6 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-04-08 11:09:40,941 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:09:40,941 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-08 11:09:40,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:09:40,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-08 11:09:40,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-04-08 11:09:40,942 INFO L87 Difference]: Start difference. First operand 129 states and 144 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 6 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-04-08 11:09:41,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:09:41,706 INFO L93 Difference]: Finished difference Result 140 states and 155 transitions. [2022-04-08 11:09:41,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-08 11:09:41,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 6 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 57 [2022-04-08 11:09:41,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:09:41,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 6 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-04-08 11:09:41,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 65 transitions. [2022-04-08 11:09:41,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 6 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-04-08 11:09:41,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 65 transitions. [2022-04-08 11:09:41,708 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 9 states and 65 transitions. [2022-04-08 11:09:41,762 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:09:41,764 INFO L225 Difference]: With dead ends: 140 [2022-04-08 11:09:41,764 INFO L226 Difference]: Without dead ends: 132 [2022-04-08 11:09:41,764 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-04-08 11:09:41,765 INFO L913 BasicCegarLoop]: 33 mSDtfsCounter, 2 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-08 11:09:41,765 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 154 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-08 11:09:41,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-04-08 11:09:42,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 130. [2022-04-08 11:09:42,051 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:09:42,052 INFO L82 GeneralOperation]: Start isEquivalent. First operand 132 states. Second operand has 130 states, 96 states have (on average 1.1145833333333333) internal successors, (107), 99 states have internal predecessors, (107), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2022-04-08 11:09:42,052 INFO L74 IsIncluded]: Start isIncluded. First operand 132 states. Second operand has 130 states, 96 states have (on average 1.1145833333333333) internal successors, (107), 99 states have internal predecessors, (107), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2022-04-08 11:09:42,052 INFO L87 Difference]: Start difference. First operand 132 states. Second operand has 130 states, 96 states have (on average 1.1145833333333333) internal successors, (107), 99 states have internal predecessors, (107), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2022-04-08 11:09:42,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:09:42,054 INFO L93 Difference]: Finished difference Result 132 states and 147 transitions. [2022-04-08 11:09:42,054 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 147 transitions. [2022-04-08 11:09:42,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:09:42,054 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:09:42,054 INFO L74 IsIncluded]: Start isIncluded. First operand has 130 states, 96 states have (on average 1.1145833333333333) internal successors, (107), 99 states have internal predecessors, (107), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) Second operand 132 states. [2022-04-08 11:09:42,054 INFO L87 Difference]: Start difference. First operand has 130 states, 96 states have (on average 1.1145833333333333) internal successors, (107), 99 states have internal predecessors, (107), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) Second operand 132 states. [2022-04-08 11:09:42,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:09:42,056 INFO L93 Difference]: Finished difference Result 132 states and 147 transitions. [2022-04-08 11:09:42,056 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 147 transitions. [2022-04-08 11:09:42,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:09:42,056 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:09:42,057 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:09:42,057 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:09:42,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 96 states have (on average 1.1145833333333333) internal successors, (107), 99 states have internal predecessors, (107), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2022-04-08 11:09:42,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 145 transitions. [2022-04-08 11:09:42,058 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 145 transitions. Word has length 57 [2022-04-08 11:09:42,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:09:42,059 INFO L478 AbstractCegarLoop]: Abstraction has 130 states and 145 transitions. [2022-04-08 11:09:42,059 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 6 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-04-08 11:09:42,059 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 130 states and 145 transitions. [2022-04-08 11:09:46,396 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 145 edges. 143 inductive. 0 not inductive. 2 times theorem prover too weak to decide inductivity. [2022-04-08 11:09:46,397 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 145 transitions. [2022-04-08 11:09:46,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-04-08 11:09:46,405 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:09:46,405 INFO L499 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:09:46,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-04-08 11:09:46,605 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:09:46,605 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:09:46,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:09:46,606 INFO L85 PathProgramCache]: Analyzing trace with hash 55892592, now seen corresponding path program 5 times [2022-04-08 11:09:46,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:09:46,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1397394159] [2022-04-08 11:09:46,606 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:09:46,606 INFO L85 PathProgramCache]: Analyzing trace with hash 55892592, now seen corresponding path program 6 times [2022-04-08 11:09:46,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:09:46,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574652441] [2022-04-08 11:09:46,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:09:46,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:09:46,615 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:09:46,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150998622] [2022-04-08 11:09:46,615 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-08 11:09:46,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:09:46,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:09:46,616 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:09:46,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-04-08 11:09:46,884 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-04-08 11:09:46,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:09:46,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 43 conjunts are in the unsatisfiable core [2022-04-08 11:09:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:09:46,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:10:03,178 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:10:09,780 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:10:14,394 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:10:44,677 WARN L232 SmtUtils]: Spent 13.87s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-04-08 11:11:12,279 INFO L272 TraceCheckUtils]: 0: Hoare triple {14456#true} call ULTIMATE.init(); {14456#true} is VALID [2022-04-08 11:11:12,279 INFO L290 TraceCheckUtils]: 1: Hoare triple {14456#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {14456#true} is VALID [2022-04-08 11:11:12,279 INFO L290 TraceCheckUtils]: 2: Hoare triple {14456#true} assume true; {14456#true} is VALID [2022-04-08 11:11:12,279 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {14456#true} {14456#true} #69#return; {14456#true} is VALID [2022-04-08 11:11:12,279 INFO L272 TraceCheckUtils]: 4: Hoare triple {14456#true} call #t~ret8 := main(); {14456#true} is VALID [2022-04-08 11:11:12,279 INFO L290 TraceCheckUtils]: 5: Hoare triple {14456#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {14456#true} is VALID [2022-04-08 11:11:12,279 INFO L272 TraceCheckUtils]: 6: Hoare triple {14456#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {14456#true} is VALID [2022-04-08 11:11:12,280 INFO L290 TraceCheckUtils]: 7: Hoare triple {14456#true} ~cond := #in~cond; {14482#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-08 11:11:12,280 INFO L290 TraceCheckUtils]: 8: Hoare triple {14482#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} assume !(0 == ~cond); {14486#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-08 11:11:12,280 INFO L290 TraceCheckUtils]: 9: Hoare triple {14486#(not (= |assume_abort_if_not_#in~cond| 0))} assume true; {14486#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-08 11:11:12,281 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {14486#(not (= |assume_abort_if_not_#in~cond| 0))} {14456#true} #61#return; {14493#(and (<= main_~X~0 100) (<= 0 main_~X~0))} is VALID [2022-04-08 11:11:12,281 INFO L290 TraceCheckUtils]: 11: Hoare triple {14493#(and (<= main_~X~0 100) (<= 0 main_~X~0))} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {14493#(and (<= main_~X~0 100) (<= 0 main_~X~0))} is VALID [2022-04-08 11:11:12,281 INFO L272 TraceCheckUtils]: 12: Hoare triple {14493#(and (<= main_~X~0 100) (<= 0 main_~X~0))} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {14456#true} is VALID [2022-04-08 11:11:12,281 INFO L290 TraceCheckUtils]: 13: Hoare triple {14456#true} ~cond := #in~cond; {14482#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-08 11:11:12,282 INFO L290 TraceCheckUtils]: 14: Hoare triple {14482#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} assume !(0 == ~cond); {14486#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-08 11:11:12,282 INFO L290 TraceCheckUtils]: 15: Hoare triple {14486#(not (= |assume_abort_if_not_#in~cond| 0))} assume true; {14486#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-08 11:11:12,283 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {14486#(not (= |assume_abort_if_not_#in~cond| 0))} {14493#(and (<= main_~X~0 100) (<= 0 main_~X~0))} #63#return; {14512#(and (<= main_~X~0 100) (<= 0 main_~Y~0) (<= 0 main_~X~0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:11:12,283 INFO L290 TraceCheckUtils]: 17: Hoare triple {14512#(and (<= main_~X~0 100) (<= 0 main_~Y~0) (<= 0 main_~X~0) (<= main_~Y~0 100))} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {14516#(and (<= main_~X~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (<= 0 main_~X~0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:11:12,283 INFO L290 TraceCheckUtils]: 18: Hoare triple {14516#(and (<= main_~X~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (<= 0 main_~X~0) (<= main_~Y~0 100))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {14516#(and (<= main_~X~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (<= 0 main_~X~0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:11:12,283 INFO L272 TraceCheckUtils]: 19: Hoare triple {14516#(and (<= main_~X~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (<= 0 main_~X~0) (<= main_~Y~0 100))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {14456#true} is VALID [2022-04-08 11:11:12,284 INFO L290 TraceCheckUtils]: 20: Hoare triple {14456#true} ~cond := #in~cond; {14456#true} is VALID [2022-04-08 11:11:12,284 INFO L290 TraceCheckUtils]: 21: Hoare triple {14456#true} assume !(0 == ~cond); {14456#true} is VALID [2022-04-08 11:11:12,284 INFO L290 TraceCheckUtils]: 22: Hoare triple {14456#true} assume true; {14456#true} is VALID [2022-04-08 11:11:12,284 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {14456#true} {14516#(and (<= main_~X~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (<= 0 main_~X~0) (<= main_~Y~0 100))} #65#return; {14516#(and (<= main_~X~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (<= 0 main_~X~0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:11:12,284 INFO L290 TraceCheckUtils]: 24: Hoare triple {14516#(and (<= main_~X~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (<= 0 main_~X~0) (<= main_~Y~0 100))} assume !!(~x~0 <= ~X~0); {14516#(and (<= main_~X~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (<= 0 main_~X~0) (<= main_~Y~0 100))} is VALID [2022-04-08 11:11:12,285 INFO L290 TraceCheckUtils]: 25: Hoare triple {14516#(and (<= main_~X~0 100) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (<= 0 main_~Y~0) (<= 0 main_~X~0) (<= main_~Y~0 100))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} is VALID [2022-04-08 11:11:12,285 INFO L290 TraceCheckUtils]: 26: Hoare triple {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} is VALID [2022-04-08 11:11:12,286 INFO L290 TraceCheckUtils]: 27: Hoare triple {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} is VALID [2022-04-08 11:11:12,286 INFO L272 TraceCheckUtils]: 28: Hoare triple {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {14456#true} is VALID [2022-04-08 11:11:12,286 INFO L290 TraceCheckUtils]: 29: Hoare triple {14456#true} ~cond := #in~cond; {14456#true} is VALID [2022-04-08 11:11:12,286 INFO L290 TraceCheckUtils]: 30: Hoare triple {14456#true} assume !(0 == ~cond); {14456#true} is VALID [2022-04-08 11:11:12,286 INFO L290 TraceCheckUtils]: 31: Hoare triple {14456#true} assume true; {14456#true} is VALID [2022-04-08 11:11:12,287 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {14456#true} {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} #65#return; {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} is VALID [2022-04-08 11:11:12,287 INFO L290 TraceCheckUtils]: 33: Hoare triple {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} assume !!(~x~0 <= ~X~0); {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} is VALID [2022-04-08 11:11:12,287 INFO L290 TraceCheckUtils]: 34: Hoare triple {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} is VALID [2022-04-08 11:11:12,288 INFO L290 TraceCheckUtils]: 35: Hoare triple {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} is VALID [2022-04-08 11:11:12,288 INFO L290 TraceCheckUtils]: 36: Hoare triple {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} is VALID [2022-04-08 11:11:12,288 INFO L272 TraceCheckUtils]: 37: Hoare triple {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {14456#true} is VALID [2022-04-08 11:11:12,288 INFO L290 TraceCheckUtils]: 38: Hoare triple {14456#true} ~cond := #in~cond; {14581#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:11:12,289 INFO L290 TraceCheckUtils]: 39: Hoare triple {14581#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {14585#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:11:12,289 INFO L290 TraceCheckUtils]: 40: Hoare triple {14585#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {14585#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:11:12,290 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {14585#(not (= |__VERIFIER_assert_#in~cond| 0))} {14541#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (<= 0 main_~Y~0))} #65#return; {14592#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (= (mod (+ main_~X~0 main_~v~0) 2) 0) (<= 0 main_~Y~0))} is VALID [2022-04-08 11:11:12,290 INFO L290 TraceCheckUtils]: 42: Hoare triple {14592#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (= (mod (+ main_~X~0 main_~v~0) 2) 0) (<= 0 main_~Y~0))} assume !!(~x~0 <= ~X~0); {14596#(and (<= main_~x~0 main_~X~0) (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (= (mod (+ main_~X~0 main_~v~0) 2) 0) (<= 0 main_~Y~0))} is VALID [2022-04-08 11:11:12,292 INFO L290 TraceCheckUtils]: 43: Hoare triple {14596#(and (<= main_~x~0 main_~X~0) (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (= (mod (+ main_~X~0 main_~v~0) 2) 0) (<= 0 main_~Y~0))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {14600#(and (<= main_~x~0 main_~X~0) (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (= (mod (+ main_~X~0 main_~v~0) 2) 0) (< main_~v~0 (* main_~Y~0 2)) (<= 0 main_~Y~0))} is VALID [2022-04-08 11:11:12,293 INFO L290 TraceCheckUtils]: 44: Hoare triple {14600#(and (<= main_~x~0 main_~X~0) (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (= (mod (+ main_~X~0 main_~v~0) 2) 0) (< main_~v~0 (* main_~Y~0 2)) (<= 0 main_~Y~0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {14604#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (= (mod (+ main_~X~0 main_~v~0) 2) 0) (< main_~v~0 (* main_~Y~0 2)) (<= 0 main_~Y~0) (<= main_~x~0 (+ main_~X~0 1)))} is VALID [2022-04-08 11:11:12,293 INFO L290 TraceCheckUtils]: 45: Hoare triple {14604#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (= (mod (+ main_~X~0 main_~v~0) 2) 0) (< main_~v~0 (* main_~Y~0 2)) (<= 0 main_~Y~0) (<= main_~x~0 (+ main_~X~0 1)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {14608#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (= (mod (+ main_~X~0 main_~v~0) 2) 0) (< main_~v~0 (* main_~Y~0 2)) (<= 0 main_~Y~0) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)) (<= main_~x~0 (+ main_~X~0 1)))} is VALID [2022-04-08 11:11:12,293 INFO L272 TraceCheckUtils]: 46: Hoare triple {14608#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (= (mod (+ main_~X~0 main_~v~0) 2) 0) (< main_~v~0 (* main_~Y~0 2)) (<= 0 main_~Y~0) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)) (<= main_~x~0 (+ main_~X~0 1)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {14456#true} is VALID [2022-04-08 11:11:12,294 INFO L290 TraceCheckUtils]: 47: Hoare triple {14456#true} ~cond := #in~cond; {14581#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:11:12,294 INFO L290 TraceCheckUtils]: 48: Hoare triple {14581#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} assume !(0 == ~cond); {14585#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:11:12,294 INFO L290 TraceCheckUtils]: 49: Hoare triple {14585#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {14585#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:11:12,296 INFO L284 TraceCheckUtils]: 50: Hoare quadruple {14585#(not (= |__VERIFIER_assert_#in~cond| 0))} {14608#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (= (mod (+ main_~X~0 main_~v~0) 2) 0) (< main_~v~0 (* main_~Y~0 2)) (<= 0 main_~Y~0) (= (* main_~X~0 main_~y~0) main_~xy~0) (= main_~yx~0 (* main_~Y~0 main_~x~0)) (<= main_~x~0 (+ main_~X~0 1)))} #65#return; {14624#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (< main_~v~0 (* main_~Y~0 2)) (<= 0 main_~Y~0) (<= main_~x~0 (+ main_~X~0 1)))} is VALID [2022-04-08 11:11:12,296 INFO L290 TraceCheckUtils]: 51: Hoare triple {14624#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (< main_~v~0 (* main_~Y~0 2)) (<= 0 main_~Y~0) (<= main_~x~0 (+ main_~X~0 1)))} assume !(~x~0 <= ~X~0); {14628#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (< main_~v~0 (* main_~Y~0 2)) (<= 0 main_~Y~0) (not (<= main_~x~0 main_~X~0)) (<= main_~x~0 (+ main_~X~0 1)))} is VALID [2022-04-08 11:11:14,300 WARN L290 TraceCheckUtils]: 52: Hoare triple {14628#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (= (+ (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (< main_~v~0 (* main_~Y~0 2)) (<= 0 main_~Y~0) (not (<= main_~x~0 main_~X~0)) (<= main_~x~0 (+ main_~X~0 1)))} ~xy~0 := ~x~0 * ~y~0;~yx~0 := ~Y~0 * ~x~0; {14632#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (< main_~v~0 (* main_~Y~0 2)) (<= 0 main_~Y~0) (or (and (or (and (= (mod main_~xy~0 main_~y~0) 0) (not (= main_~y~0 0)) (<= (div main_~xy~0 main_~y~0) (+ main_~X~0 1)) (< main_~X~0 (div main_~xy~0 main_~y~0))) (and (= main_~xy~0 0) (= main_~y~0 0))) (= (mod (+ (* main_~X~0 main_~y~0 2) main_~X~0 main_~v~0) 2) 0) (= main_~yx~0 0) (= 0 (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0))) (= main_~Y~0 0)) (and (= (* main_~y~0 (div (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0)) main_~xy~0) (= (mod (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0) 0) (<= (div (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0) (+ main_~X~0 1)) (= (mod (+ (* main_~X~0 main_~y~0 2) main_~X~0 main_~v~0) 2) 0) (not (<= (div (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0) main_~X~0)) (not (= main_~Y~0 0)) (= main_~yx~0 (* main_~Y~0 (div (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0))))))} is UNKNOWN [2022-04-08 11:11:14,311 INFO L272 TraceCheckUtils]: 53: Hoare triple {14632#(and (< (* main_~Y~0 2) main_~X~0) (<= main_~X~0 100) (< main_~v~0 (* main_~Y~0 2)) (<= 0 main_~Y~0) (or (and (or (and (= (mod main_~xy~0 main_~y~0) 0) (not (= main_~y~0 0)) (<= (div main_~xy~0 main_~y~0) (+ main_~X~0 1)) (< main_~X~0 (div main_~xy~0 main_~y~0))) (and (= main_~xy~0 0) (= main_~y~0 0))) (= (mod (+ (* main_~X~0 main_~y~0 2) main_~X~0 main_~v~0) 2) 0) (= main_~yx~0 0) (= 0 (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0))) (= main_~Y~0 0)) (and (= (* main_~y~0 (div (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0)) main_~xy~0) (= (mod (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0) 0) (<= (div (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0) (+ main_~X~0 1)) (= (mod (+ (* main_~X~0 main_~y~0 2) main_~X~0 main_~v~0) 2) 0) (not (<= (div (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0) main_~X~0)) (not (= main_~Y~0 0)) (= main_~yx~0 (* main_~Y~0 (div (+ (* main_~X~0 main_~y~0) (div (+ main_~X~0 main_~v~0) 2) (* (- 1) main_~Y~0)) main_~Y~0))))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 + 2 * ~y~0 then 1 else 0)); {14636#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:11:14,312 INFO L290 TraceCheckUtils]: 54: Hoare triple {14636#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {14640#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:11:14,312 INFO L290 TraceCheckUtils]: 55: Hoare triple {14640#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {14457#false} is VALID [2022-04-08 11:11:14,312 INFO L290 TraceCheckUtils]: 56: Hoare triple {14457#false} assume !false; {14457#false} is VALID [2022-04-08 11:11:14,313 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 28 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-08 11:11:14,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:11:26,290 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:12:43,645 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:12:50,334 INFO L290 TraceCheckUtils]: 56: Hoare triple {14457#false} assume !false; {14457#false} is VALID [2022-04-08 11:12:50,334 INFO L290 TraceCheckUtils]: 55: Hoare triple {14640#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {14457#false} is VALID [2022-04-08 11:12:50,335 INFO L290 TraceCheckUtils]: 54: Hoare triple {14636#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {14640#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:12:50,336 INFO L272 TraceCheckUtils]: 53: Hoare triple {14656#(= (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 main_~yx~0)) (+ (* 2 main_~xy~0) main_~X~0 main_~v~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 + 2 * ~y~0 then 1 else 0)); {14636#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:12:50,337 INFO L290 TraceCheckUtils]: 52: Hoare triple {14660#(= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))))} ~xy~0 := ~x~0 * ~y~0;~yx~0 := ~Y~0 * ~x~0; {14656#(= (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 main_~yx~0)) (+ (* 2 main_~xy~0) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:12:50,338 INFO L290 TraceCheckUtils]: 51: Hoare triple {14664#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} assume !(~x~0 <= ~X~0); {14660#(= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))))} is VALID [2022-04-08 11:12:50,339 INFO L284 TraceCheckUtils]: 50: Hoare quadruple {14585#(not (= |__VERIFIER_assert_#in~cond| 0))} {14668#(or (<= main_~x~0 main_~X~0) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} #65#return; {14664#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} is VALID [2022-04-08 11:12:50,339 INFO L290 TraceCheckUtils]: 49: Hoare triple {14585#(not (= |__VERIFIER_assert_#in~cond| 0))} assume true; {14585#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:12:50,339 INFO L290 TraceCheckUtils]: 48: Hoare triple {14678#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} assume !(0 == ~cond); {14585#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 11:12:50,340 INFO L290 TraceCheckUtils]: 47: Hoare triple {14456#true} ~cond := #in~cond; {14678#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 11:12:50,340 INFO L272 TraceCheckUtils]: 46: Hoare triple {14668#(or (<= main_~x~0 main_~X~0) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {14456#true} is VALID [2022-04-08 11:12:52,343 WARN L290 TraceCheckUtils]: 45: Hoare triple {14685#(or (<= main_~x~0 main_~X~0) (and (or (= (+ main_~X~0 main_~v~0 (* (* (div (+ (div (+ main_~X~0 main_~v~0) (- 2)) main_~Y~0 (* main_~Y~0 main_~x~0)) main_~X~0) main_~x~0) 2)) (+ (* main_~Y~0 2) (* (div (+ (div (+ main_~X~0 main_~v~0) (- 2)) main_~Y~0 (* main_~Y~0 main_~x~0)) main_~X~0) 2) (* 2 (* main_~Y~0 main_~x~0)))) (not (= (mod (+ (div (+ main_~X~0 main_~v~0) (- 2)) main_~Y~0 (* main_~Y~0 main_~x~0)) main_~X~0) 0)) (= main_~X~0 0) (not (= (mod (+ main_~X~0 main_~v~0 (* (- 2) main_~Y~0 main_~x~0)) 2) 0))) (or (forall ((main_~y~0 Int)) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))))) (not (= main_~X~0 0)) (not (= (+ (div (+ main_~X~0 main_~v~0) (- 2)) main_~Y~0 (* main_~Y~0 main_~x~0)) 0)) (not (= (mod (+ main_~X~0 main_~v~0 (* (- 2) main_~Y~0 main_~x~0)) 2) 0)))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {14668#(or (<= main_~x~0 main_~X~0) (not (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ (* main_~Y~0 2) (* 2 main_~yx~0)))) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} is UNKNOWN [2022-04-08 11:12:52,514 INFO L290 TraceCheckUtils]: 44: Hoare triple {14689#(or (and (or (not (= 0 (mod (+ (* (- 2) (+ main_~x~0 1) main_~Y~0) main_~X~0 main_~v~0) 2))) (= main_~X~0 0) (= (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)) (* 2 (div (+ (div (+ main_~X~0 main_~v~0) (- 2)) main_~Y~0 (* (+ main_~x~0 1) main_~Y~0)) main_~X~0))) (+ (* 2 (* (+ main_~x~0 1) (div (+ (div (+ main_~X~0 main_~v~0) (- 2)) main_~Y~0 (* (+ main_~x~0 1) main_~Y~0)) main_~X~0))) main_~X~0 main_~v~0)) (not (= (mod (+ (div (+ main_~X~0 main_~v~0) (- 2)) main_~Y~0 (* (+ main_~x~0 1) main_~Y~0)) main_~X~0) 0))) (or (not (= 0 (mod (+ (* (- 2) (+ main_~x~0 1) main_~Y~0) main_~X~0 main_~v~0) 2))) (forall ((main_~y~0 Int)) (= (+ (* (* (+ main_~x~0 1) main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))) (not (= main_~X~0 0)) (not (= (+ (div (+ main_~X~0 main_~v~0) (- 2)) main_~Y~0 (* (+ main_~x~0 1) main_~Y~0)) 0)))) (<= (+ main_~x~0 1) main_~X~0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {14685#(or (<= main_~x~0 main_~X~0) (and (or (= (+ main_~X~0 main_~v~0 (* (* (div (+ (div (+ main_~X~0 main_~v~0) (- 2)) main_~Y~0 (* main_~Y~0 main_~x~0)) main_~X~0) main_~x~0) 2)) (+ (* main_~Y~0 2) (* (div (+ (div (+ main_~X~0 main_~v~0) (- 2)) main_~Y~0 (* main_~Y~0 main_~x~0)) main_~X~0) 2) (* 2 (* main_~Y~0 main_~x~0)))) (not (= (mod (+ (div (+ main_~X~0 main_~v~0) (- 2)) main_~Y~0 (* main_~Y~0 main_~x~0)) main_~X~0) 0)) (= main_~X~0 0) (not (= (mod (+ main_~X~0 main_~v~0 (* (- 2) main_~Y~0 main_~x~0)) 2) 0))) (or (forall ((main_~y~0 Int)) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))))) (not (= main_~X~0 0)) (not (= (+ (div (+ main_~X~0 main_~v~0) (- 2)) main_~Y~0 (* main_~Y~0 main_~x~0)) 0)) (not (= (mod (+ main_~X~0 main_~v~0 (* (- 2) main_~Y~0 main_~x~0)) 2) 0)))))} is VALID [2022-04-08 11:12:53,071 INFO L290 TraceCheckUtils]: 43: Hoare triple {14693#(or (and (or (not (= (+ (div (+ main_~X~0 main_~v~0 (* main_~Y~0 2)) (- 2)) main_~Y~0 (* (+ main_~x~0 1) main_~Y~0)) 0)) (not (= 0 (mod (+ (* (- 2) (+ main_~x~0 1) main_~Y~0) main_~X~0 main_~v~0) 2))) (forall ((main_~y~0 Int)) (= (+ (* (* (+ main_~x~0 1) main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))) (not (= main_~X~0 0))) (or (not (= (mod (+ (div (+ main_~X~0 main_~v~0 (* main_~Y~0 2)) (- 2)) main_~Y~0 (* (+ main_~x~0 1) main_~Y~0)) main_~X~0) 0)) (not (= 0 (mod (+ (* (- 2) (+ main_~x~0 1) main_~Y~0) main_~X~0 main_~v~0) 2))) (= (+ (* (* (+ main_~x~0 1) (div (+ (div (+ main_~X~0 main_~v~0 (* main_~Y~0 2)) (- 2)) main_~Y~0 (* (+ main_~x~0 1) main_~Y~0)) main_~X~0)) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)) (* 2 (div (+ (div (+ main_~X~0 main_~v~0 (* main_~Y~0 2)) (- 2)) main_~Y~0 (* (+ main_~x~0 1) main_~Y~0)) main_~X~0)))) (= main_~X~0 0))) (not (< main_~v~0 0)) (<= (+ main_~x~0 1) main_~X~0))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {14689#(or (and (or (not (= 0 (mod (+ (* (- 2) (+ main_~x~0 1) main_~Y~0) main_~X~0 main_~v~0) 2))) (= main_~X~0 0) (= (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)) (* 2 (div (+ (div (+ main_~X~0 main_~v~0) (- 2)) main_~Y~0 (* (+ main_~x~0 1) main_~Y~0)) main_~X~0))) (+ (* 2 (* (+ main_~x~0 1) (div (+ (div (+ main_~X~0 main_~v~0) (- 2)) main_~Y~0 (* (+ main_~x~0 1) main_~Y~0)) main_~X~0))) main_~X~0 main_~v~0)) (not (= (mod (+ (div (+ main_~X~0 main_~v~0) (- 2)) main_~Y~0 (* (+ main_~x~0 1) main_~Y~0)) main_~X~0) 0))) (or (not (= 0 (mod (+ (* (- 2) (+ main_~x~0 1) main_~Y~0) main_~X~0 main_~v~0) 2))) (forall ((main_~y~0 Int)) (= (+ (* (* (+ main_~x~0 1) main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))) (not (= main_~X~0 0)) (not (= (+ (div (+ main_~X~0 main_~v~0) (- 2)) main_~Y~0 (* (+ main_~x~0 1) main_~Y~0)) 0)))) (<= (+ main_~x~0 1) main_~X~0))} is VALID [2022-04-08 11:12:53,090 INFO L290 TraceCheckUtils]: 42: Hoare triple {14456#true} assume !!(~x~0 <= ~X~0); {14693#(or (and (or (not (= (+ (div (+ main_~X~0 main_~v~0 (* main_~Y~0 2)) (- 2)) main_~Y~0 (* (+ main_~x~0 1) main_~Y~0)) 0)) (not (= 0 (mod (+ (* (- 2) (+ main_~x~0 1) main_~Y~0) main_~X~0 main_~v~0) 2))) (forall ((main_~y~0 Int)) (= (+ (* (* (+ main_~x~0 1) main_~y~0) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0))))) (not (= main_~X~0 0))) (or (not (= (mod (+ (div (+ main_~X~0 main_~v~0 (* main_~Y~0 2)) (- 2)) main_~Y~0 (* (+ main_~x~0 1) main_~Y~0)) main_~X~0) 0)) (not (= 0 (mod (+ (* (- 2) (+ main_~x~0 1) main_~Y~0) main_~X~0 main_~v~0) 2))) (= (+ (* (* (+ main_~x~0 1) (div (+ (div (+ main_~X~0 main_~v~0 (* main_~Y~0 2)) (- 2)) main_~Y~0 (* (+ main_~x~0 1) main_~Y~0)) main_~X~0)) 2) main_~X~0 main_~v~0 (* main_~Y~0 2)) (+ (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)) (* 2 (div (+ (div (+ main_~X~0 main_~v~0 (* main_~Y~0 2)) (- 2)) main_~Y~0 (* (+ main_~x~0 1) main_~Y~0)) main_~X~0)))) (= main_~X~0 0))) (not (< main_~v~0 0)) (<= (+ main_~x~0 1) main_~X~0))} is VALID [2022-04-08 11:12:53,090 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {14456#true} {14456#true} #65#return; {14456#true} is VALID [2022-04-08 11:12:53,090 INFO L290 TraceCheckUtils]: 40: Hoare triple {14456#true} assume true; {14456#true} is VALID [2022-04-08 11:12:53,091 INFO L290 TraceCheckUtils]: 39: Hoare triple {14456#true} assume !(0 == ~cond); {14456#true} is VALID [2022-04-08 11:12:53,091 INFO L290 TraceCheckUtils]: 38: Hoare triple {14456#true} ~cond := #in~cond; {14456#true} is VALID [2022-04-08 11:12:53,091 INFO L272 TraceCheckUtils]: 37: Hoare triple {14456#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {14456#true} is VALID [2022-04-08 11:12:53,091 INFO L290 TraceCheckUtils]: 36: Hoare triple {14456#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {14456#true} is VALID [2022-04-08 11:12:53,091 INFO L290 TraceCheckUtils]: 35: Hoare triple {14456#true} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {14456#true} is VALID [2022-04-08 11:12:53,091 INFO L290 TraceCheckUtils]: 34: Hoare triple {14456#true} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {14456#true} is VALID [2022-04-08 11:12:53,091 INFO L290 TraceCheckUtils]: 33: Hoare triple {14456#true} assume !!(~x~0 <= ~X~0); {14456#true} is VALID [2022-04-08 11:12:53,091 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {14456#true} {14456#true} #65#return; {14456#true} is VALID [2022-04-08 11:12:53,091 INFO L290 TraceCheckUtils]: 31: Hoare triple {14456#true} assume true; {14456#true} is VALID [2022-04-08 11:12:53,091 INFO L290 TraceCheckUtils]: 30: Hoare triple {14456#true} assume !(0 == ~cond); {14456#true} is VALID [2022-04-08 11:12:53,091 INFO L290 TraceCheckUtils]: 29: Hoare triple {14456#true} ~cond := #in~cond; {14456#true} is VALID [2022-04-08 11:12:53,091 INFO L272 TraceCheckUtils]: 28: Hoare triple {14456#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {14456#true} is VALID [2022-04-08 11:12:53,091 INFO L290 TraceCheckUtils]: 27: Hoare triple {14456#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {14456#true} is VALID [2022-04-08 11:12:53,091 INFO L290 TraceCheckUtils]: 26: Hoare triple {14456#true} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {14456#true} is VALID [2022-04-08 11:12:53,092 INFO L290 TraceCheckUtils]: 25: Hoare triple {14456#true} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {14456#true} is VALID [2022-04-08 11:12:53,092 INFO L290 TraceCheckUtils]: 24: Hoare triple {14456#true} assume !!(~x~0 <= ~X~0); {14456#true} is VALID [2022-04-08 11:12:53,092 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {14456#true} {14456#true} #65#return; {14456#true} is VALID [2022-04-08 11:12:53,092 INFO L290 TraceCheckUtils]: 22: Hoare triple {14456#true} assume true; {14456#true} is VALID [2022-04-08 11:12:53,092 INFO L290 TraceCheckUtils]: 21: Hoare triple {14456#true} assume !(0 == ~cond); {14456#true} is VALID [2022-04-08 11:12:53,092 INFO L290 TraceCheckUtils]: 20: Hoare triple {14456#true} ~cond := #in~cond; {14456#true} is VALID [2022-04-08 11:12:53,092 INFO L272 TraceCheckUtils]: 19: Hoare triple {14456#true} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {14456#true} is VALID [2022-04-08 11:12:53,092 INFO L290 TraceCheckUtils]: 18: Hoare triple {14456#true} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {14456#true} is VALID [2022-04-08 11:12:53,092 INFO L290 TraceCheckUtils]: 17: Hoare triple {14456#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {14456#true} is VALID [2022-04-08 11:12:53,092 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {14456#true} {14456#true} #63#return; {14456#true} is VALID [2022-04-08 11:12:53,092 INFO L290 TraceCheckUtils]: 15: Hoare triple {14456#true} assume true; {14456#true} is VALID [2022-04-08 11:12:53,092 INFO L290 TraceCheckUtils]: 14: Hoare triple {14456#true} assume !(0 == ~cond); {14456#true} is VALID [2022-04-08 11:12:53,092 INFO L290 TraceCheckUtils]: 13: Hoare triple {14456#true} ~cond := #in~cond; {14456#true} is VALID [2022-04-08 11:12:53,092 INFO L272 TraceCheckUtils]: 12: Hoare triple {14456#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {14456#true} is VALID [2022-04-08 11:12:53,093 INFO L290 TraceCheckUtils]: 11: Hoare triple {14456#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {14456#true} is VALID [2022-04-08 11:12:53,093 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {14456#true} {14456#true} #61#return; {14456#true} is VALID [2022-04-08 11:12:53,093 INFO L290 TraceCheckUtils]: 9: Hoare triple {14456#true} assume true; {14456#true} is VALID [2022-04-08 11:12:53,093 INFO L290 TraceCheckUtils]: 8: Hoare triple {14456#true} assume !(0 == ~cond); {14456#true} is VALID [2022-04-08 11:12:53,093 INFO L290 TraceCheckUtils]: 7: Hoare triple {14456#true} ~cond := #in~cond; {14456#true} is VALID [2022-04-08 11:12:53,093 INFO L272 TraceCheckUtils]: 6: Hoare triple {14456#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {14456#true} is VALID [2022-04-08 11:12:53,093 INFO L290 TraceCheckUtils]: 5: Hoare triple {14456#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {14456#true} is VALID [2022-04-08 11:12:53,093 INFO L272 TraceCheckUtils]: 4: Hoare triple {14456#true} call #t~ret8 := main(); {14456#true} is VALID [2022-04-08 11:12:53,093 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {14456#true} {14456#true} #69#return; {14456#true} is VALID [2022-04-08 11:12:53,093 INFO L290 TraceCheckUtils]: 2: Hoare triple {14456#true} assume true; {14456#true} is VALID [2022-04-08 11:12:53,093 INFO L290 TraceCheckUtils]: 1: Hoare triple {14456#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {14456#true} is VALID [2022-04-08 11:12:53,093 INFO L272 TraceCheckUtils]: 0: Hoare triple {14456#true} call ULTIMATE.init(); {14456#true} is VALID [2022-04-08 11:12:53,094 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-08 11:12:53,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:12:53,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574652441] [2022-04-08 11:12:53,094 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:12:53,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150998622] [2022-04-08 11:12:53,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150998622] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:12:53,094 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:12:53,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13] total 28 [2022-04-08 11:12:53,094 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:12:53,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1397394159] [2022-04-08 11:12:53,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1397394159] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:12:53,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:12:53,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-04-08 11:12:53,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686207638] [2022-04-08 11:12:53,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:12:53,095 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 16 states have internal predecessors, (30), 6 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 57 [2022-04-08 11:12:53,095 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:12:53,095 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 16 states have internal predecessors, (30), 6 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2022-04-08 11:12:54,471 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:12:54,472 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-04-08 11:12:54,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:12:54,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-04-08 11:12:54,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=623, Unknown=9, NotChecked=0, Total=756 [2022-04-08 11:12:54,473 INFO L87 Difference]: Start difference. First operand 130 states and 145 transitions. Second operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 16 states have internal predecessors, (30), 6 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2022-04-08 11:12:58,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-08 11:13:03,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-08 11:13:08,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-08 11:13:10,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-08 11:13:46,895 WARN L232 SmtUtils]: Spent 11.70s on a formula simplification. DAG size of input: 65 DAG size of output: 59 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-04-08 11:13:51,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-08 11:13:54,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-08 11:13:56,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-08 11:13:56,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:13:56,805 INFO L93 Difference]: Finished difference Result 138 states and 152 transitions. [2022-04-08 11:13:56,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-08 11:13:56,805 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 16 states have internal predecessors, (30), 6 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 57 [2022-04-08 11:13:56,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:13:56,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 16 states have internal predecessors, (30), 6 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2022-04-08 11:13:56,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 60 transitions. [2022-04-08 11:13:56,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 16 states have internal predecessors, (30), 6 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2022-04-08 11:13:56,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 60 transitions. [2022-04-08 11:13:56,807 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 21 states and 60 transitions. [2022-04-08 11:13:58,892 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 60 edges. 59 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2022-04-08 11:13:58,894 INFO L225 Difference]: With dead ends: 138 [2022-04-08 11:13:58,894 INFO L226 Difference]: Without dead ends: 130 [2022-04-08 11:13:58,894 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 84.2s TimeCoverageRelationStatistics Valid=216, Invalid=1029, Unknown=15, NotChecked=0, Total=1260 [2022-04-08 11:13:58,895 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 31 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 17 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-04-08 11:13:58,895 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 135 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 346 Invalid, 6 Unknown, 0 Unchecked, 14.7s Time] [2022-04-08 11:13:58,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-04-08 11:13:59,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2022-04-08 11:13:59,202 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:13:59,202 INFO L82 GeneralOperation]: Start isEquivalent. First operand 130 states. Second operand has 128 states, 94 states have (on average 1.0957446808510638) internal successors, (103), 99 states have internal predecessors, (103), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 14 states have call predecessors, (18), 18 states have call successors, (18) [2022-04-08 11:13:59,202 INFO L74 IsIncluded]: Start isIncluded. First operand 130 states. Second operand has 128 states, 94 states have (on average 1.0957446808510638) internal successors, (103), 99 states have internal predecessors, (103), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 14 states have call predecessors, (18), 18 states have call successors, (18) [2022-04-08 11:13:59,202 INFO L87 Difference]: Start difference. First operand 130 states. Second operand has 128 states, 94 states have (on average 1.0957446808510638) internal successors, (103), 99 states have internal predecessors, (103), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 14 states have call predecessors, (18), 18 states have call successors, (18) [2022-04-08 11:13:59,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:13:59,204 INFO L93 Difference]: Finished difference Result 130 states and 143 transitions. [2022-04-08 11:13:59,204 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2022-04-08 11:13:59,204 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:13:59,204 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:13:59,205 INFO L74 IsIncluded]: Start isIncluded. First operand has 128 states, 94 states have (on average 1.0957446808510638) internal successors, (103), 99 states have internal predecessors, (103), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 14 states have call predecessors, (18), 18 states have call successors, (18) Second operand 130 states. [2022-04-08 11:13:59,205 INFO L87 Difference]: Start difference. First operand has 128 states, 94 states have (on average 1.0957446808510638) internal successors, (103), 99 states have internal predecessors, (103), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 14 states have call predecessors, (18), 18 states have call successors, (18) Second operand 130 states. [2022-04-08 11:13:59,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:13:59,207 INFO L93 Difference]: Finished difference Result 130 states and 143 transitions. [2022-04-08 11:13:59,207 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2022-04-08 11:13:59,207 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:13:59,207 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:13:59,207 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:13:59,207 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:13:59,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 94 states have (on average 1.0957446808510638) internal successors, (103), 99 states have internal predecessors, (103), 20 states have call successors, (20), 14 states have call predecessors, (20), 13 states have return successors, (18), 14 states have call predecessors, (18), 18 states have call successors, (18) [2022-04-08 11:13:59,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 141 transitions. [2022-04-08 11:13:59,209 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 141 transitions. Word has length 57 [2022-04-08 11:13:59,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:13:59,209 INFO L478 AbstractCegarLoop]: Abstraction has 128 states and 141 transitions. [2022-04-08 11:13:59,209 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 16 states have internal predecessors, (30), 6 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2022-04-08 11:13:59,209 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 128 states and 141 transitions. [2022-04-08 11:14:03,605 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 141 edges. 139 inductive. 0 not inductive. 2 times theorem prover too weak to decide inductivity. [2022-04-08 11:14:03,605 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 141 transitions. [2022-04-08 11:14:03,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-04-08 11:14:03,606 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:14:03,606 INFO L499 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:14:03,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-04-08 11:14:03,811 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:14:03,811 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:14:03,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:14:03,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1124973290, now seen corresponding path program 7 times [2022-04-08 11:14:03,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:14:03,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2096464846] [2022-04-08 11:14:03,812 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:14:03,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1124973290, now seen corresponding path program 8 times [2022-04-08 11:14:03,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:14:03,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231982862] [2022-04-08 11:14:03,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:14:03,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:14:03,821 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:14:03,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1749855792] [2022-04-08 11:14:03,821 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-08 11:14:03,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:14:03,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:14:03,822 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:14:03,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-04-08 11:14:03,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-08 11:14:03,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:14:03,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 34 conjunts are in the unsatisfiable core [2022-04-08 11:14:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:14:03,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:14:04,660 INFO L272 TraceCheckUtils]: 0: Hoare triple {15633#true} call ULTIMATE.init(); {15633#true} is VALID [2022-04-08 11:14:04,660 INFO L290 TraceCheckUtils]: 1: Hoare triple {15633#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {15633#true} is VALID [2022-04-08 11:14:04,660 INFO L290 TraceCheckUtils]: 2: Hoare triple {15633#true} assume true; {15633#true} is VALID [2022-04-08 11:14:04,660 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {15633#true} {15633#true} #69#return; {15633#true} is VALID [2022-04-08 11:14:04,660 INFO L272 TraceCheckUtils]: 4: Hoare triple {15633#true} call #t~ret8 := main(); {15633#true} is VALID [2022-04-08 11:14:04,660 INFO L290 TraceCheckUtils]: 5: Hoare triple {15633#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {15633#true} is VALID [2022-04-08 11:14:04,660 INFO L272 TraceCheckUtils]: 6: Hoare triple {15633#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {15633#true} is VALID [2022-04-08 11:14:04,660 INFO L290 TraceCheckUtils]: 7: Hoare triple {15633#true} ~cond := #in~cond; {15633#true} is VALID [2022-04-08 11:14:04,660 INFO L290 TraceCheckUtils]: 8: Hoare triple {15633#true} assume !(0 == ~cond); {15633#true} is VALID [2022-04-08 11:14:04,660 INFO L290 TraceCheckUtils]: 9: Hoare triple {15633#true} assume true; {15633#true} is VALID [2022-04-08 11:14:04,661 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {15633#true} {15633#true} #61#return; {15633#true} is VALID [2022-04-08 11:14:04,661 INFO L290 TraceCheckUtils]: 11: Hoare triple {15633#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {15633#true} is VALID [2022-04-08 11:14:04,661 INFO L272 TraceCheckUtils]: 12: Hoare triple {15633#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {15633#true} is VALID [2022-04-08 11:14:04,661 INFO L290 TraceCheckUtils]: 13: Hoare triple {15633#true} ~cond := #in~cond; {15633#true} is VALID [2022-04-08 11:14:04,661 INFO L290 TraceCheckUtils]: 14: Hoare triple {15633#true} assume !(0 == ~cond); {15633#true} is VALID [2022-04-08 11:14:04,661 INFO L290 TraceCheckUtils]: 15: Hoare triple {15633#true} assume true; {15633#true} is VALID [2022-04-08 11:14:04,661 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {15633#true} {15633#true} #63#return; {15633#true} is VALID [2022-04-08 11:14:04,661 INFO L290 TraceCheckUtils]: 17: Hoare triple {15633#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {15689#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:14:04,662 INFO L290 TraceCheckUtils]: 18: Hoare triple {15689#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {15689#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:14:04,662 INFO L272 TraceCheckUtils]: 19: Hoare triple {15689#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {15633#true} is VALID [2022-04-08 11:14:04,662 INFO L290 TraceCheckUtils]: 20: Hoare triple {15633#true} ~cond := #in~cond; {15633#true} is VALID [2022-04-08 11:14:04,662 INFO L290 TraceCheckUtils]: 21: Hoare triple {15633#true} assume !(0 == ~cond); {15633#true} is VALID [2022-04-08 11:14:04,662 INFO L290 TraceCheckUtils]: 22: Hoare triple {15633#true} assume true; {15633#true} is VALID [2022-04-08 11:14:04,663 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {15633#true} {15689#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} #65#return; {15689#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:14:04,663 INFO L290 TraceCheckUtils]: 24: Hoare triple {15689#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} assume !!(~x~0 <= ~X~0); {15689#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} is VALID [2022-04-08 11:14:04,664 INFO L290 TraceCheckUtils]: 25: Hoare triple {15689#(and (= main_~x~0 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) main_~v~0) (= main_~y~0 0))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {15714#(and (= main_~x~0 0) (= main_~y~0 1) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:14:04,665 INFO L290 TraceCheckUtils]: 26: Hoare triple {15714#(and (= main_~x~0 0) (= main_~y~0 1) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {15718#(and (= (+ (- 1) main_~x~0) 0) (= main_~y~0 1) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:14:04,665 INFO L290 TraceCheckUtils]: 27: Hoare triple {15718#(and (= (+ (- 1) main_~x~0) 0) (= main_~y~0 1) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {15718#(and (= (+ (- 1) main_~x~0) 0) (= main_~y~0 1) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:14:04,665 INFO L272 TraceCheckUtils]: 28: Hoare triple {15718#(and (= (+ (- 1) main_~x~0) 0) (= main_~y~0 1) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {15633#true} is VALID [2022-04-08 11:14:04,665 INFO L290 TraceCheckUtils]: 29: Hoare triple {15633#true} ~cond := #in~cond; {15633#true} is VALID [2022-04-08 11:14:04,666 INFO L290 TraceCheckUtils]: 30: Hoare triple {15633#true} assume !(0 == ~cond); {15633#true} is VALID [2022-04-08 11:14:04,666 INFO L290 TraceCheckUtils]: 31: Hoare triple {15633#true} assume true; {15633#true} is VALID [2022-04-08 11:14:04,666 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {15633#true} {15718#(and (= (+ (- 1) main_~x~0) 0) (= main_~y~0 1) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} #65#return; {15718#(and (= (+ (- 1) main_~x~0) 0) (= main_~y~0 1) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:14:04,667 INFO L290 TraceCheckUtils]: 33: Hoare triple {15718#(and (= (+ (- 1) main_~x~0) 0) (= main_~y~0 1) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} assume !!(~x~0 <= ~X~0); {15718#(and (= (+ (- 1) main_~x~0) 0) (= main_~y~0 1) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} is VALID [2022-04-08 11:14:04,668 INFO L290 TraceCheckUtils]: 34: Hoare triple {15718#(and (= (+ (- 1) main_~x~0) 0) (= main_~y~0 1) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 2))) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~X~0 2) (* (- 2) main_~Y~0))))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {15743#(and (= (+ (- 1) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~Y~0 (- 4)) (* main_~X~0 2))) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4))) (= main_~y~0 1) (< main_~v~0 (* main_~Y~0 2)))} is VALID [2022-04-08 11:14:04,668 INFO L290 TraceCheckUtils]: 35: Hoare triple {15743#(and (= (+ (- 1) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~Y~0 (- 4)) (* main_~X~0 2))) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4))) (= main_~y~0 1) (< main_~v~0 (* main_~Y~0 2)))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {15747#(and (= (+ (- 2) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~Y~0 (- 4)) (* main_~X~0 2))) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4))) (= main_~y~0 1) (< main_~v~0 (* main_~Y~0 2)))} is VALID [2022-04-08 11:14:04,669 INFO L290 TraceCheckUtils]: 36: Hoare triple {15747#(and (= (+ (- 2) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~Y~0 (- 4)) (* main_~X~0 2))) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4))) (= main_~y~0 1) (< main_~v~0 (* main_~Y~0 2)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {15747#(and (= (+ (- 2) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~Y~0 (- 4)) (* main_~X~0 2))) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4))) (= main_~y~0 1) (< main_~v~0 (* main_~Y~0 2)))} is VALID [2022-04-08 11:14:04,669 INFO L272 TraceCheckUtils]: 37: Hoare triple {15747#(and (= (+ (- 2) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~Y~0 (- 4)) (* main_~X~0 2))) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4))) (= main_~y~0 1) (< main_~v~0 (* main_~Y~0 2)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {15633#true} is VALID [2022-04-08 11:14:04,669 INFO L290 TraceCheckUtils]: 38: Hoare triple {15633#true} ~cond := #in~cond; {15633#true} is VALID [2022-04-08 11:14:04,669 INFO L290 TraceCheckUtils]: 39: Hoare triple {15633#true} assume !(0 == ~cond); {15633#true} is VALID [2022-04-08 11:14:04,669 INFO L290 TraceCheckUtils]: 40: Hoare triple {15633#true} assume true; {15633#true} is VALID [2022-04-08 11:14:04,670 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {15633#true} {15747#(and (= (+ (- 2) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~Y~0 (- 4)) (* main_~X~0 2))) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4))) (= main_~y~0 1) (< main_~v~0 (* main_~Y~0 2)))} #65#return; {15747#(and (= (+ (- 2) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~Y~0 (- 4)) (* main_~X~0 2))) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4))) (= main_~y~0 1) (< main_~v~0 (* main_~Y~0 2)))} is VALID [2022-04-08 11:14:04,670 INFO L290 TraceCheckUtils]: 42: Hoare triple {15747#(and (= (+ (- 2) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~Y~0 (- 4)) (* main_~X~0 2))) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4))) (= main_~y~0 1) (< main_~v~0 (* main_~Y~0 2)))} assume !!(~x~0 <= ~X~0); {15747#(and (= (+ (- 2) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~Y~0 (- 4)) (* main_~X~0 2))) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4))) (= main_~y~0 1) (< main_~v~0 (* main_~Y~0 2)))} is VALID [2022-04-08 11:14:04,672 INFO L290 TraceCheckUtils]: 43: Hoare triple {15747#(and (= (+ (- 2) main_~x~0) 0) (= (+ (* (- 1) main_~X~0) (* main_~Y~0 2)) (+ main_~v~0 (* main_~Y~0 (- 4)) (* main_~X~0 2))) (not (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4))) (= main_~y~0 1) (< main_~v~0 (* main_~Y~0 2)))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {15772#(and (= main_~y~0 2) (= (* main_~Y~0 8) (+ main_~v~0 (* 5 main_~X~0))) (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4)) (= main_~x~0 2) (<= (* main_~Y~0 6) (+ main_~v~0 (* main_~X~0 4))))} is VALID [2022-04-08 11:14:04,672 INFO L290 TraceCheckUtils]: 44: Hoare triple {15772#(and (= main_~y~0 2) (= (* main_~Y~0 8) (+ main_~v~0 (* 5 main_~X~0))) (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4)) (= main_~x~0 2) (<= (* main_~Y~0 6) (+ main_~v~0 (* main_~X~0 4))))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {15776#(and (= main_~y~0 2) (= main_~x~0 3) (= (* main_~Y~0 8) (+ main_~v~0 (* 5 main_~X~0))) (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4)) (<= (* main_~Y~0 6) (+ main_~v~0 (* main_~X~0 4))))} is VALID [2022-04-08 11:14:04,673 INFO L290 TraceCheckUtils]: 45: Hoare triple {15776#(and (= main_~y~0 2) (= main_~x~0 3) (= (* main_~Y~0 8) (+ main_~v~0 (* 5 main_~X~0))) (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4)) (<= (* main_~Y~0 6) (+ main_~v~0 (* main_~X~0 4))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {15776#(and (= main_~y~0 2) (= main_~x~0 3) (= (* main_~Y~0 8) (+ main_~v~0 (* 5 main_~X~0))) (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4)) (<= (* main_~Y~0 6) (+ main_~v~0 (* main_~X~0 4))))} is VALID [2022-04-08 11:14:04,673 INFO L272 TraceCheckUtils]: 46: Hoare triple {15776#(and (= main_~y~0 2) (= main_~x~0 3) (= (* main_~Y~0 8) (+ main_~v~0 (* 5 main_~X~0))) (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4)) (<= (* main_~Y~0 6) (+ main_~v~0 (* main_~X~0 4))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {15633#true} is VALID [2022-04-08 11:14:04,673 INFO L290 TraceCheckUtils]: 47: Hoare triple {15633#true} ~cond := #in~cond; {15633#true} is VALID [2022-04-08 11:14:04,673 INFO L290 TraceCheckUtils]: 48: Hoare triple {15633#true} assume !(0 == ~cond); {15633#true} is VALID [2022-04-08 11:14:04,673 INFO L290 TraceCheckUtils]: 49: Hoare triple {15633#true} assume true; {15633#true} is VALID [2022-04-08 11:14:04,674 INFO L284 TraceCheckUtils]: 50: Hoare quadruple {15633#true} {15776#(and (= main_~y~0 2) (= main_~x~0 3) (= (* main_~Y~0 8) (+ main_~v~0 (* 5 main_~X~0))) (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4)) (<= (* main_~Y~0 6) (+ main_~v~0 (* main_~X~0 4))))} #65#return; {15776#(and (= main_~y~0 2) (= main_~x~0 3) (= (* main_~Y~0 8) (+ main_~v~0 (* 5 main_~X~0))) (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4)) (<= (* main_~Y~0 6) (+ main_~v~0 (* main_~X~0 4))))} is VALID [2022-04-08 11:14:04,674 INFO L290 TraceCheckUtils]: 51: Hoare triple {15776#(and (= main_~y~0 2) (= main_~x~0 3) (= (* main_~Y~0 8) (+ main_~v~0 (* 5 main_~X~0))) (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4)) (<= (* main_~Y~0 6) (+ main_~v~0 (* main_~X~0 4))))} assume !(~x~0 <= ~X~0); {15798#(and (= main_~y~0 2) (= main_~x~0 3) (= (* main_~Y~0 8) (+ main_~v~0 (* 5 main_~X~0))) (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4)) (not (<= main_~x~0 main_~X~0)) (<= (* main_~Y~0 6) (+ main_~v~0 (* main_~X~0 4))))} is VALID [2022-04-08 11:14:04,675 INFO L290 TraceCheckUtils]: 52: Hoare triple {15798#(and (= main_~y~0 2) (= main_~x~0 3) (= (* main_~Y~0 8) (+ main_~v~0 (* 5 main_~X~0))) (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4)) (not (<= main_~x~0 main_~X~0)) (<= (* main_~Y~0 6) (+ main_~v~0 (* main_~X~0 4))))} ~xy~0 := ~x~0 * ~y~0;~yx~0 := ~Y~0 * ~x~0; {15802#(and (= main_~y~0 2) (= (* main_~Y~0 3) main_~yx~0) (= (* main_~Y~0 8) (+ main_~v~0 (* 5 main_~X~0))) (= main_~xy~0 (* main_~y~0 3)) (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4)) (<= (* main_~Y~0 6) (+ main_~v~0 (* main_~X~0 4))) (not (<= 3 main_~X~0)))} is VALID [2022-04-08 11:14:04,676 INFO L272 TraceCheckUtils]: 53: Hoare triple {15802#(and (= main_~y~0 2) (= (* main_~Y~0 3) main_~yx~0) (= (* main_~Y~0 8) (+ main_~v~0 (* 5 main_~X~0))) (= main_~xy~0 (* main_~y~0 3)) (< (+ main_~v~0 (* main_~X~0 2)) (* main_~Y~0 4)) (<= (* main_~Y~0 6) (+ main_~v~0 (* main_~X~0 4))) (not (<= 3 main_~X~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 + 2 * ~y~0 then 1 else 0)); {15806#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:14:04,676 INFO L290 TraceCheckUtils]: 54: Hoare triple {15806#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {15810#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:14:04,677 INFO L290 TraceCheckUtils]: 55: Hoare triple {15810#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {15634#false} is VALID [2022-04-08 11:14:04,677 INFO L290 TraceCheckUtils]: 56: Hoare triple {15634#false} assume !false; {15634#false} is VALID [2022-04-08 11:14:04,677 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-04-08 11:14:04,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 11:14:05,737 INFO L290 TraceCheckUtils]: 56: Hoare triple {15634#false} assume !false; {15634#false} is VALID [2022-04-08 11:14:05,737 INFO L290 TraceCheckUtils]: 55: Hoare triple {15810#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {15634#false} is VALID [2022-04-08 11:14:05,738 INFO L290 TraceCheckUtils]: 54: Hoare triple {15806#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {15810#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 11:14:05,738 INFO L272 TraceCheckUtils]: 53: Hoare triple {15826#(= (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 main_~yx~0)) (+ (* 2 main_~xy~0) main_~X~0 main_~v~0))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 + 2 * ~y~0 then 1 else 0)); {15806#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 11:14:05,740 INFO L290 TraceCheckUtils]: 52: Hoare triple {15830#(= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))))} ~xy~0 := ~x~0 * ~y~0;~yx~0 := ~Y~0 * ~x~0; {15826#(= (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 main_~yx~0)) (+ (* 2 main_~xy~0) main_~X~0 main_~v~0))} is VALID [2022-04-08 11:14:05,740 INFO L290 TraceCheckUtils]: 51: Hoare triple {15834#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} assume !(~x~0 <= ~X~0); {15830#(= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0))))} is VALID [2022-04-08 11:14:05,741 INFO L284 TraceCheckUtils]: 50: Hoare quadruple {15633#true} {15834#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} #65#return; {15834#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} is VALID [2022-04-08 11:14:05,741 INFO L290 TraceCheckUtils]: 49: Hoare triple {15633#true} assume true; {15633#true} is VALID [2022-04-08 11:14:05,741 INFO L290 TraceCheckUtils]: 48: Hoare triple {15633#true} assume !(0 == ~cond); {15633#true} is VALID [2022-04-08 11:14:05,741 INFO L290 TraceCheckUtils]: 47: Hoare triple {15633#true} ~cond := #in~cond; {15633#true} is VALID [2022-04-08 11:14:05,741 INFO L272 TraceCheckUtils]: 46: Hoare triple {15834#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {15633#true} is VALID [2022-04-08 11:14:05,742 INFO L290 TraceCheckUtils]: 45: Hoare triple {15834#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {15834#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} is VALID [2022-04-08 11:14:05,746 INFO L290 TraceCheckUtils]: 44: Hoare triple {15856#(or (= (+ (* (* (+ main_~x~0 1) main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (<= (+ main_~x~0 1) main_~X~0))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {15834#(or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* main_~Y~0 main_~x~0)))))} is VALID [2022-04-08 11:14:05,749 INFO L290 TraceCheckUtils]: 43: Hoare triple {15860#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) (+ main_~y~0 1)))) (+ 2 (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {15856#(or (= (+ (* (* (+ main_~x~0 1) main_~y~0) 2) main_~X~0 main_~v~0) (+ (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (<= (+ main_~x~0 1) main_~X~0))} is VALID [2022-04-08 11:14:05,749 INFO L290 TraceCheckUtils]: 42: Hoare triple {15864#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) (+ main_~y~0 1)))) (+ 2 (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (not (<= main_~x~0 main_~X~0)))} assume !!(~x~0 <= ~X~0); {15860#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) (+ main_~y~0 1)))) (+ 2 (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))))} is VALID [2022-04-08 11:14:05,750 INFO L284 TraceCheckUtils]: 41: Hoare quadruple {15633#true} {15864#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) (+ main_~y~0 1)))) (+ 2 (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (not (<= main_~x~0 main_~X~0)))} #65#return; {15864#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) (+ main_~y~0 1)))) (+ 2 (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (not (<= main_~x~0 main_~X~0)))} is VALID [2022-04-08 11:14:05,750 INFO L290 TraceCheckUtils]: 40: Hoare triple {15633#true} assume true; {15633#true} is VALID [2022-04-08 11:14:05,750 INFO L290 TraceCheckUtils]: 39: Hoare triple {15633#true} assume !(0 == ~cond); {15633#true} is VALID [2022-04-08 11:14:05,750 INFO L290 TraceCheckUtils]: 38: Hoare triple {15633#true} ~cond := #in~cond; {15633#true} is VALID [2022-04-08 11:14:05,750 INFO L272 TraceCheckUtils]: 37: Hoare triple {15864#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) (+ main_~y~0 1)))) (+ 2 (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (not (<= main_~x~0 main_~X~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {15633#true} is VALID [2022-04-08 11:14:05,751 INFO L290 TraceCheckUtils]: 36: Hoare triple {15864#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) (+ main_~y~0 1)))) (+ 2 (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (not (<= main_~x~0 main_~X~0)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {15864#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) (+ main_~y~0 1)))) (+ 2 (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (not (<= main_~x~0 main_~X~0)))} is VALID [2022-04-08 11:14:05,754 INFO L290 TraceCheckUtils]: 35: Hoare triple {15886#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* (* (+ main_~x~0 2) (+ main_~y~0 1)) 2)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) 2 (* main_~y~0 2) (* main_~Y~0 2))) (<= (+ main_~x~0 2) main_~X~0) (< main_~v~0 0) (not (<= (+ main_~x~0 1) main_~X~0)))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {15864#(or (< main_~v~0 0) (<= (+ main_~x~0 1) main_~X~0) (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) (+ main_~y~0 1)))) (+ 2 (* main_~y~0 2) (* main_~Y~0 2) (* 2 (* (+ main_~x~0 1) main_~Y~0)))) (not (<= main_~x~0 main_~X~0)))} is VALID [2022-04-08 11:14:05,755 INFO L290 TraceCheckUtils]: 34: Hoare triple {15890#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* (* (+ main_~x~0 2) (+ main_~y~0 1)) 2) (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) 2 (* main_~y~0 2) (* main_~Y~0 2))) (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)) (not (<= (+ main_~x~0 1) main_~X~0)))} assume ~v~0 < 0;~v~0 := ~v~0 + 2 * ~Y~0; {15886#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* main_~Y~0 2) (* (* (+ main_~x~0 2) (+ main_~y~0 1)) 2)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) 2 (* main_~y~0 2) (* main_~Y~0 2))) (<= (+ main_~x~0 2) main_~X~0) (< main_~v~0 0) (not (<= (+ main_~x~0 1) main_~X~0)))} is VALID [2022-04-08 11:14:05,756 INFO L290 TraceCheckUtils]: 33: Hoare triple {15890#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* (* (+ main_~x~0 2) (+ main_~y~0 1)) 2) (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) 2 (* main_~y~0 2) (* main_~Y~0 2))) (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)) (not (<= (+ main_~x~0 1) main_~X~0)))} assume !!(~x~0 <= ~X~0); {15890#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* (* (+ main_~x~0 2) (+ main_~y~0 1)) 2) (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) 2 (* main_~y~0 2) (* main_~Y~0 2))) (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)) (not (<= (+ main_~x~0 1) main_~X~0)))} is VALID [2022-04-08 11:14:05,757 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {15633#true} {15890#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* (* (+ main_~x~0 2) (+ main_~y~0 1)) 2) (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) 2 (* main_~y~0 2) (* main_~Y~0 2))) (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)) (not (<= (+ main_~x~0 1) main_~X~0)))} #65#return; {15890#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* (* (+ main_~x~0 2) (+ main_~y~0 1)) 2) (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) 2 (* main_~y~0 2) (* main_~Y~0 2))) (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)) (not (<= (+ main_~x~0 1) main_~X~0)))} is VALID [2022-04-08 11:14:05,757 INFO L290 TraceCheckUtils]: 31: Hoare triple {15633#true} assume true; {15633#true} is VALID [2022-04-08 11:14:05,757 INFO L290 TraceCheckUtils]: 30: Hoare triple {15633#true} assume !(0 == ~cond); {15633#true} is VALID [2022-04-08 11:14:05,757 INFO L290 TraceCheckUtils]: 29: Hoare triple {15633#true} ~cond := #in~cond; {15633#true} is VALID [2022-04-08 11:14:05,757 INFO L272 TraceCheckUtils]: 28: Hoare triple {15890#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* (* (+ main_~x~0 2) (+ main_~y~0 1)) 2) (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) 2 (* main_~y~0 2) (* main_~Y~0 2))) (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)) (not (<= (+ main_~x~0 1) main_~X~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {15633#true} is VALID [2022-04-08 11:14:05,757 INFO L290 TraceCheckUtils]: 27: Hoare triple {15890#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* (* (+ main_~x~0 2) (+ main_~y~0 1)) 2) (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) 2 (* main_~y~0 2) (* main_~Y~0 2))) (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)) (not (<= (+ main_~x~0 1) main_~X~0)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {15890#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* (* (+ main_~x~0 2) (+ main_~y~0 1)) 2) (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) 2 (* main_~y~0 2) (* main_~Y~0 2))) (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)) (not (<= (+ main_~x~0 1) main_~X~0)))} is VALID [2022-04-08 11:14:05,768 INFO L290 TraceCheckUtils]: 26: Hoare triple {15915#(or (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)) (<= (+ main_~x~0 3) main_~X~0) (= (+ main_~v~0 (* (* (+ main_~x~0 3) (+ main_~y~0 1)) 2) (* (- 1) main_~X~0) (* main_~Y~0 4)) (+ 2 (* main_~y~0 2) (* main_~Y~0 2) (* (* (+ main_~x~0 3) main_~Y~0) 2))) (not (<= (+ main_~x~0 2) main_~X~0)))} #t~post7 := ~x~0;~x~0 := 1 + #t~post7;havoc #t~post7; {15890#(or (= (+ main_~v~0 (* (- 1) main_~X~0) (* (* (+ main_~x~0 2) (+ main_~y~0 1)) 2) (* main_~Y~0 4)) (+ (* 2 (* main_~Y~0 (+ main_~x~0 2))) 2 (* main_~y~0 2) (* main_~Y~0 2))) (<= (+ main_~x~0 2) main_~X~0) (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)) (not (<= (+ main_~x~0 1) main_~X~0)))} is VALID [2022-04-08 11:14:05,771 INFO L290 TraceCheckUtils]: 25: Hoare triple {15919#(or (< main_~v~0 0) (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (= (+ (* main_~y~0 2) (* main_~Y~0 2) 4 (* (* (+ main_~x~0 3) main_~Y~0) 2)) (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~x~0 3) (+ main_~y~0 2))) main_~v~0 (* main_~Y~0 6))) (<= (+ main_~x~0 3) main_~X~0) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))) (not (<= (+ main_~x~0 2) main_~X~0)))} assume !(~v~0 < 0);~v~0 := ~v~0 + 2 * (~Y~0 - ~X~0);#t~post6 := ~y~0;~y~0 := 1 + #t~post6;havoc #t~post6; {15915#(or (< (+ main_~v~0 (* main_~Y~0 2)) 0) (not (< main_~v~0 0)) (<= (+ main_~x~0 3) main_~X~0) (= (+ main_~v~0 (* (* (+ main_~x~0 3) (+ main_~y~0 1)) 2) (* (- 1) main_~X~0) (* main_~Y~0 4)) (+ 2 (* main_~y~0 2) (* main_~Y~0 2) (* (* (+ main_~x~0 3) main_~Y~0) 2))) (not (<= (+ main_~x~0 2) main_~X~0)))} is VALID [2022-04-08 11:14:05,772 INFO L290 TraceCheckUtils]: 24: Hoare triple {15919#(or (< main_~v~0 0) (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (= (+ (* main_~y~0 2) (* main_~Y~0 2) 4 (* (* (+ main_~x~0 3) main_~Y~0) 2)) (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~x~0 3) (+ main_~y~0 2))) main_~v~0 (* main_~Y~0 6))) (<= (+ main_~x~0 3) main_~X~0) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))) (not (<= (+ main_~x~0 2) main_~X~0)))} assume !!(~x~0 <= ~X~0); {15919#(or (< main_~v~0 0) (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (= (+ (* main_~y~0 2) (* main_~Y~0 2) 4 (* (* (+ main_~x~0 3) main_~Y~0) 2)) (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~x~0 3) (+ main_~y~0 2))) main_~v~0 (* main_~Y~0 6))) (<= (+ main_~x~0 3) main_~X~0) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))) (not (<= (+ main_~x~0 2) main_~X~0)))} is VALID [2022-04-08 11:14:05,773 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {15633#true} {15919#(or (< main_~v~0 0) (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (= (+ (* main_~y~0 2) (* main_~Y~0 2) 4 (* (* (+ main_~x~0 3) main_~Y~0) 2)) (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~x~0 3) (+ main_~y~0 2))) main_~v~0 (* main_~Y~0 6))) (<= (+ main_~x~0 3) main_~X~0) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))) (not (<= (+ main_~x~0 2) main_~X~0)))} #65#return; {15919#(or (< main_~v~0 0) (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (= (+ (* main_~y~0 2) (* main_~Y~0 2) 4 (* (* (+ main_~x~0 3) main_~Y~0) 2)) (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~x~0 3) (+ main_~y~0 2))) main_~v~0 (* main_~Y~0 6))) (<= (+ main_~x~0 3) main_~X~0) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))) (not (<= (+ main_~x~0 2) main_~X~0)))} is VALID [2022-04-08 11:14:05,773 INFO L290 TraceCheckUtils]: 22: Hoare triple {15633#true} assume true; {15633#true} is VALID [2022-04-08 11:14:05,773 INFO L290 TraceCheckUtils]: 21: Hoare triple {15633#true} assume !(0 == ~cond); {15633#true} is VALID [2022-04-08 11:14:05,773 INFO L290 TraceCheckUtils]: 20: Hoare triple {15633#true} ~cond := #in~cond; {15633#true} is VALID [2022-04-08 11:14:05,773 INFO L272 TraceCheckUtils]: 19: Hoare triple {15919#(or (< main_~v~0 0) (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (= (+ (* main_~y~0 2) (* main_~Y~0 2) 4 (* (* (+ main_~x~0 3) main_~Y~0) 2)) (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~x~0 3) (+ main_~y~0 2))) main_~v~0 (* main_~Y~0 6))) (<= (+ main_~x~0 3) main_~X~0) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))) (not (<= (+ main_~x~0 2) main_~X~0)))} call __VERIFIER_assert((if 0 == 2 * ~yx~0 - 2 * ~xy~0 - ~X~0 + 2 * ~Y~0 - ~v~0 then 1 else 0)); {15633#true} is VALID [2022-04-08 11:14:05,774 INFO L290 TraceCheckUtils]: 18: Hoare triple {15919#(or (< main_~v~0 0) (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (= (+ (* main_~y~0 2) (* main_~Y~0 2) 4 (* (* (+ main_~x~0 3) main_~Y~0) 2)) (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~x~0 3) (+ main_~y~0 2))) main_~v~0 (* main_~Y~0 6))) (<= (+ main_~x~0 3) main_~X~0) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))) (not (<= (+ main_~x~0 2) main_~X~0)))} assume !false;~yx~0 := ~Y~0 * ~x~0;~xy~0 := ~X~0 * ~y~0; {15919#(or (< main_~v~0 0) (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (= (+ (* main_~y~0 2) (* main_~Y~0 2) 4 (* (* (+ main_~x~0 3) main_~Y~0) 2)) (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~x~0 3) (+ main_~y~0 2))) main_~v~0 (* main_~Y~0 6))) (<= (+ main_~x~0 3) main_~X~0) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))) (not (<= (+ main_~x~0 2) main_~X~0)))} is VALID [2022-04-08 11:14:05,775 INFO L290 TraceCheckUtils]: 17: Hoare triple {15633#true} ~v~0 := 2 * ~Y~0 - ~X~0;~y~0 := 0;~x~0 := 0; {15919#(or (< main_~v~0 0) (< (+ main_~v~0 (* main_~Y~0 4)) (* main_~X~0 2)) (= (+ (* main_~y~0 2) (* main_~Y~0 2) 4 (* (* (+ main_~x~0 3) main_~Y~0) 2)) (+ (* main_~X~0 (- 3)) (* 2 (* (+ main_~x~0 3) (+ main_~y~0 2))) main_~v~0 (* main_~Y~0 6))) (<= (+ main_~x~0 3) main_~X~0) (not (< (+ main_~v~0 (* main_~Y~0 2)) (* main_~X~0 2))) (not (<= (+ main_~x~0 2) main_~X~0)))} is VALID [2022-04-08 11:14:05,775 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {15633#true} {15633#true} #63#return; {15633#true} is VALID [2022-04-08 11:14:05,775 INFO L290 TraceCheckUtils]: 15: Hoare triple {15633#true} assume true; {15633#true} is VALID [2022-04-08 11:14:05,775 INFO L290 TraceCheckUtils]: 14: Hoare triple {15633#true} assume !(0 == ~cond); {15633#true} is VALID [2022-04-08 11:14:05,775 INFO L290 TraceCheckUtils]: 13: Hoare triple {15633#true} ~cond := #in~cond; {15633#true} is VALID [2022-04-08 11:14:05,775 INFO L272 TraceCheckUtils]: 12: Hoare triple {15633#true} call assume_abort_if_not((if ~Y~0 >= 0 && ~Y~0 <= 100 then 1 else 0)); {15633#true} is VALID [2022-04-08 11:14:05,775 INFO L290 TraceCheckUtils]: 11: Hoare triple {15633#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~Y~0 := #t~nondet5;havoc #t~nondet5; {15633#true} is VALID [2022-04-08 11:14:05,776 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {15633#true} {15633#true} #61#return; {15633#true} is VALID [2022-04-08 11:14:05,776 INFO L290 TraceCheckUtils]: 9: Hoare triple {15633#true} assume true; {15633#true} is VALID [2022-04-08 11:14:05,776 INFO L290 TraceCheckUtils]: 8: Hoare triple {15633#true} assume !(0 == ~cond); {15633#true} is VALID [2022-04-08 11:14:05,776 INFO L290 TraceCheckUtils]: 7: Hoare triple {15633#true} ~cond := #in~cond; {15633#true} is VALID [2022-04-08 11:14:05,776 INFO L272 TraceCheckUtils]: 6: Hoare triple {15633#true} call assume_abort_if_not((if ~X~0 >= 0 && ~X~0 <= 100 then 1 else 0)); {15633#true} is VALID [2022-04-08 11:14:05,776 INFO L290 TraceCheckUtils]: 5: Hoare triple {15633#true} havoc ~X~0;havoc ~Y~0;havoc ~x~0;havoc ~y~0;havoc ~v~0;havoc ~xy~0;havoc ~yx~0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~X~0 := #t~nondet4;havoc #t~nondet4; {15633#true} is VALID [2022-04-08 11:14:05,776 INFO L272 TraceCheckUtils]: 4: Hoare triple {15633#true} call #t~ret8 := main(); {15633#true} is VALID [2022-04-08 11:14:05,776 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {15633#true} {15633#true} #69#return; {15633#true} is VALID [2022-04-08 11:14:05,776 INFO L290 TraceCheckUtils]: 2: Hoare triple {15633#true} assume true; {15633#true} is VALID [2022-04-08 11:14:05,776 INFO L290 TraceCheckUtils]: 1: Hoare triple {15633#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); {15633#true} is VALID [2022-04-08 11:14:05,776 INFO L272 TraceCheckUtils]: 0: Hoare triple {15633#true} call ULTIMATE.init(); {15633#true} is VALID [2022-04-08 11:14:05,777 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-04-08 11:14:05,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 11:14:05,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231982862] [2022-04-08 11:14:05,777 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 11:14:05,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749855792] [2022-04-08 11:14:05,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749855792] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 11:14:05,777 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 11:14:05,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 23 [2022-04-08 11:14:05,777 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 11:14:05,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2096464846] [2022-04-08 11:14:05,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2096464846] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 11:14:05,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 11:14:05,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-08 11:14:05,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184312074] [2022-04-08 11:14:05,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 11:14:05,778 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 6 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 57 [2022-04-08 11:14:05,778 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 11:14:05,778 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 13 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 6 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-04-08 11:14:05,827 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:14:05,827 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-08 11:14:05,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 11:14:05,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-08 11:14:05,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2022-04-08 11:14:05,828 INFO L87 Difference]: Start difference. First operand 128 states and 141 transitions. Second operand has 13 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 6 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-04-08 11:14:07,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:14:07,140 INFO L93 Difference]: Finished difference Result 141 states and 156 transitions. [2022-04-08 11:14:07,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-08 11:14:07,140 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 6 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 57 [2022-04-08 11:14:07,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 11:14:07,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 6 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-04-08 11:14:07,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 64 transitions. [2022-04-08 11:14:07,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 6 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-04-08 11:14:07,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 64 transitions. [2022-04-08 11:14:07,148 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 13 states and 64 transitions. [2022-04-08 11:14:07,218 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 11:14:07,220 INFO L225 Difference]: With dead ends: 141 [2022-04-08 11:14:07,220 INFO L226 Difference]: Without dead ends: 133 [2022-04-08 11:14:07,221 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 90 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2022-04-08 11:14:07,221 INFO L913 BasicCegarLoop]: 32 mSDtfsCounter, 9 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-08 11:14:07,221 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 217 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-08 11:14:07,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-04-08 11:14:07,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2022-04-08 11:14:07,586 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 11:14:07,586 INFO L82 GeneralOperation]: Start isEquivalent. First operand 133 states. Second operand has 132 states, 97 states have (on average 1.092783505154639) internal successors, (106), 102 states have internal predecessors, (106), 21 states have call successors, (21), 14 states have call predecessors, (21), 13 states have return successors, (19), 15 states have call predecessors, (19), 19 states have call successors, (19) [2022-04-08 11:14:07,587 INFO L74 IsIncluded]: Start isIncluded. First operand 133 states. Second operand has 132 states, 97 states have (on average 1.092783505154639) internal successors, (106), 102 states have internal predecessors, (106), 21 states have call successors, (21), 14 states have call predecessors, (21), 13 states have return successors, (19), 15 states have call predecessors, (19), 19 states have call successors, (19) [2022-04-08 11:14:07,587 INFO L87 Difference]: Start difference. First operand 133 states. Second operand has 132 states, 97 states have (on average 1.092783505154639) internal successors, (106), 102 states have internal predecessors, (106), 21 states have call successors, (21), 14 states have call predecessors, (21), 13 states have return successors, (19), 15 states have call predecessors, (19), 19 states have call successors, (19) [2022-04-08 11:14:07,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:14:07,589 INFO L93 Difference]: Finished difference Result 133 states and 148 transitions. [2022-04-08 11:14:07,589 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 148 transitions. [2022-04-08 11:14:07,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:14:07,589 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:14:07,589 INFO L74 IsIncluded]: Start isIncluded. First operand has 132 states, 97 states have (on average 1.092783505154639) internal successors, (106), 102 states have internal predecessors, (106), 21 states have call successors, (21), 14 states have call predecessors, (21), 13 states have return successors, (19), 15 states have call predecessors, (19), 19 states have call successors, (19) Second operand 133 states. [2022-04-08 11:14:07,589 INFO L87 Difference]: Start difference. First operand has 132 states, 97 states have (on average 1.092783505154639) internal successors, (106), 102 states have internal predecessors, (106), 21 states have call successors, (21), 14 states have call predecessors, (21), 13 states have return successors, (19), 15 states have call predecessors, (19), 19 states have call successors, (19) Second operand 133 states. [2022-04-08 11:14:07,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 11:14:07,591 INFO L93 Difference]: Finished difference Result 133 states and 148 transitions. [2022-04-08 11:14:07,591 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 148 transitions. [2022-04-08 11:14:07,591 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 11:14:07,591 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 11:14:07,591 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 11:14:07,591 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 11:14:07,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 97 states have (on average 1.092783505154639) internal successors, (106), 102 states have internal predecessors, (106), 21 states have call successors, (21), 14 states have call predecessors, (21), 13 states have return successors, (19), 15 states have call predecessors, (19), 19 states have call successors, (19) [2022-04-08 11:14:07,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 146 transitions. [2022-04-08 11:14:07,594 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 146 transitions. Word has length 57 [2022-04-08 11:14:07,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 11:14:07,594 INFO L478 AbstractCegarLoop]: Abstraction has 132 states and 146 transitions. [2022-04-08 11:14:07,594 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 6 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-04-08 11:14:07,594 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 132 states and 146 transitions. [2022-04-08 11:14:12,036 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 146 edges. 144 inductive. 0 not inductive. 2 times theorem prover too weak to decide inductivity. [2022-04-08 11:14:12,036 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 146 transitions. [2022-04-08 11:14:12,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-04-08 11:14:12,037 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 11:14:12,037 INFO L499 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 11:14:12,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-04-08 11:14:12,237 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-04-08 11:14:12,237 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 11:14:12,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 11:14:12,237 INFO L85 PathProgramCache]: Analyzing trace with hash -680465044, now seen corresponding path program 5 times [2022-04-08 11:14:12,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 11:14:12,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [132023399] [2022-04-08 11:14:12,238 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 11:14:12,238 INFO L85 PathProgramCache]: Analyzing trace with hash -680465044, now seen corresponding path program 6 times [2022-04-08 11:14:12,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 11:14:12,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763607301] [2022-04-08 11:14:12,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 11:14:12,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 11:14:12,252 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 11:14:12,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [151809439] [2022-04-08 11:14:12,252 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-08 11:14:12,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 11:14:12,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 11:14:12,253 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 11:14:12,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-04-08 11:14:12,693 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-04-08 11:14:12,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 11:14:12,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 21 conjunts are in the unsatisfiable core [2022-04-08 11:14:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 11:14:12,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 11:14:27,912 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:14:35,096 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:14:39,810 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-08 11:14:43,937 WARN L833 $PredicateComparison]: unable to prove that (and (let ((.cse3 (+ c_main_~X~0 1)) (.cse2 (+ (* (- 1) c_main_~Y~0) (div (+ c_main_~v~0 c_main_~X~0) 2) (* c_main_~X~0 c_main_~y~0))) (.cse0 (= c_main_~Y~0 0)) (.cse4 (= (mod (+ (* 2 c_main_~X~0 c_main_~y~0) c_main_~v~0 c_main_~X~0) 2) 0))) (or (let ((.cse1 (div .cse2 c_main_~Y~0))) (and (not .cse0) (not (<= .cse1 c_main_~X~0)) (= (mod .cse2 c_main_~Y~0) 0) (= c_main_~xy~0 (* c_main_~y~0 .cse1)) (<= .cse1 .cse3) (= c_main_~yx~0 (* c_main_~Y~0 .cse1)) .cse4)) (and (let ((.cse6 (= c_main_~y~0 0))) (or (let ((.cse5 (div c_main_~xy~0 c_main_~y~0))) (and (<= .cse5 .cse3) (= (mod c_main_~xy~0 c_main_~y~0) 0) (not .cse6) (< c_main_~X~0 .cse5))) (and .cse6 (= c_main_~xy~0 0)))) (= 0 .cse2) .cse0 (= c_main_~yx~0 0) .cse4))) (<= 0 c_main_~X~0)) is different from false