/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/loops-crafted-1/sumt9.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 13:12:42,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 13:12:42,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 13:12:42,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-15 13:12:42,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 13:12:42,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 13:12:42,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 13:12:42,273 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-15 13:12:42,280 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 13:12:42,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 13:12:42,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 13:12:42,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 13:12:42,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 13:12:42,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 13:12:42,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 13:12:42,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 13:12:42,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 13:12:42,282 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 13:12:42,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 13:12:42,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 13:12:42,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 13:12:42,282 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-15 13:12:42,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 13:12:42,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 13:12:42,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 13:12:42,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-15 13:12:42,283 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-15 13:12:42,283 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-15 13:12:42,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 13:12:42,283 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-15 13:12:42,283 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 13:12:42,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 13:12:42,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 13:12:42,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 13:12:42,487 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 13:12:42,487 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 13:12:42,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt9.c [2022-04-15 13:12:42,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e2a01add/aeec275d5c2a4d52872782967a0679bb/FLAG18b6e629a [2022-04-15 13:12:42,947 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 13:12:42,947 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt9.c [2022-04-15 13:12:42,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e2a01add/aeec275d5c2a4d52872782967a0679bb/FLAG18b6e629a [2022-04-15 13:12:42,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e2a01add/aeec275d5c2a4d52872782967a0679bb [2022-04-15 13:12:42,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 13:12:42,974 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-15 13:12:42,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 13:12:42,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 13:12:42,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 13:12:42,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 01:12:42" (1/1) ... [2022-04-15 13:12:42,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f950a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:12:42, skipping insertion in model container [2022-04-15 13:12:42,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 01:12:42" (1/1) ... [2022-04-15 13:12:42,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 13:12:43,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 13:12:43,152 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt9.c[403,416] [2022-04-15 13:12:43,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 13:12:43,186 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 13:12:43,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt9.c[403,416] [2022-04-15 13:12:43,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 13:12:43,243 INFO L208 MainTranslator]: Completed translation [2022-04-15 13:12:43,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:12:43 WrapperNode [2022-04-15 13:12:43,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 13:12:43,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 13:12:43,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 13:12:43,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 13:12:43,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:12:43" (1/1) ... [2022-04-15 13:12:43,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:12:43" (1/1) ... [2022-04-15 13:12:43,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:12:43" (1/1) ... [2022-04-15 13:12:43,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:12:43" (1/1) ... [2022-04-15 13:12:43,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:12:43" (1/1) ... [2022-04-15 13:12:43,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:12:43" (1/1) ... [2022-04-15 13:12:43,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:12:43" (1/1) ... [2022-04-15 13:12:43,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 13:12:43,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 13:12:43,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 13:12:43,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 13:12:43,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:12:43" (1/1) ... [2022-04-15 13:12:43,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 13:12:43,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 13:12:43,344 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) [2022-04-15 13:12:43,362 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 [2022-04-15 13:12:43,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 13:12:43,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 13:12:43,380 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 13:12:43,380 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-15 13:12:43,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-15 13:12:43,381 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 13:12:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 13:12:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 13:12:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 13:12:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 13:12:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-15 13:12:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-15 13:12:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-15 13:12:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 13:12:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 13:12:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 13:12:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 13:12:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 13:12:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 13:12:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 13:12:43,433 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 13:12:43,434 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 13:12:54,445 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 13:12:54,451 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 13:12:54,451 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-15 13:12:54,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 01:12:54 BoogieIcfgContainer [2022-04-15 13:12:54,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 13:12:54,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 13:12:54,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 13:12:54,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 13:12:54,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 01:12:42" (1/3) ... [2022-04-15 13:12:54,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0802df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 01:12:54, skipping insertion in model container [2022-04-15 13:12:54,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:12:43" (2/3) ... [2022-04-15 13:12:54,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0802df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 01:12:54, skipping insertion in model container [2022-04-15 13:12:54,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 01:12:54" (3/3) ... [2022-04-15 13:12:54,464 INFO L111 eAbstractionObserver]: Analyzing ICFG sumt9.c [2022-04-15 13:12:54,468 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-15 13:12:54,468 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 13:12:54,502 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 13:12:54,507 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 [2022-04-15 13:12:54,507 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 13:12:54,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 21 states have (on average 1.619047619047619) internal successors, (34), 23 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 13:12:54,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-15 13:12:54,526 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 13:12:54,526 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 13:12:54,526 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 13:12:54,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 13:12:54,531 INFO L85 PathProgramCache]: Analyzing trace with hash 701348598, now seen corresponding path program 1 times [2022-04-15 13:12:54,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 13:12:54,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [667376480] [2022-04-15 13:12:54,546 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 13:12:54,546 INFO L85 PathProgramCache]: Analyzing trace with hash 701348598, now seen corresponding path program 2 times [2022-04-15 13:12:54,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 13:12:54,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578453963] [2022-04-15 13:12:54,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 13:12:54,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 13:12:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 13:12:55,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 13:12:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 13:12:55,379 INFO L290 TraceCheckUtils]: 0: Hoare triple {42#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#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(8, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 20000001; {32#true} is VALID [2022-04-15 13:12:55,379 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#true} assume true; {32#true} is VALID [2022-04-15 13:12:55,380 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {32#true} {32#true} #91#return; {32#true} is VALID [2022-04-15 13:12:55,381 INFO L272 TraceCheckUtils]: 0: Hoare triple {32#true} call ULTIMATE.init(); {42#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 13:12:55,382 INFO L290 TraceCheckUtils]: 1: Hoare triple {42#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#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(8, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 20000001; {32#true} is VALID [2022-04-15 13:12:55,382 INFO L290 TraceCheckUtils]: 2: Hoare triple {32#true} assume true; {32#true} is VALID [2022-04-15 13:12:55,382 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {32#true} {32#true} #91#return; {32#true} is VALID [2022-04-15 13:12:55,382 INFO L272 TraceCheckUtils]: 4: Hoare triple {32#true} call #t~ret5 := main(); {32#true} is VALID [2022-04-15 13:12:55,383 INFO L290 TraceCheckUtils]: 5: Hoare triple {32#true} ~n~0 := 0;~i~0 := 0;~k~0 := 0;~j~0 := 0;~l~0 := 0;~v1~0 := 0;~v2~0 := 0;~v3~0 := 0;~v4~0 := 0;~v5~0 := 0;~v6~0 := 0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~n~0 := #t~nondet4;havoc #t~nondet4; {37#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (= main_~v6~0 0) (= main_~v1~0 0) (= main_~v3~0 0))} is VALID [2022-04-15 13:12:55,384 INFO L290 TraceCheckUtils]: 6: Hoare triple {37#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (= main_~v6~0 0) (= main_~v1~0 0) (= main_~v3~0 0))} assume !!(~n~0 % 4294967296 <= ~SIZE~0 % 4294967296); {37#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (= main_~v6~0 0) (= main_~v1~0 0) (= main_~v3~0 0))} is VALID [2022-04-15 13:12:55,385 INFO L290 TraceCheckUtils]: 7: Hoare triple {37#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (= main_~v6~0 0) (= main_~v1~0 0) (= main_~v3~0 0))} assume !!(~l~0 % 4294967296 < ~n~0 % 4294967296); {37#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (= main_~v6~0 0) (= main_~v1~0 0) (= main_~v3~0 0))} is VALID [2022-04-15 13:12:55,386 INFO L290 TraceCheckUtils]: 8: Hoare triple {37#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (= main_~v6~0 0) (= main_~v1~0 0) (= main_~v3~0 0))} assume 0 == (if ~l~0 % 4294967296 < 0 && 0 != ~l~0 % 4294967296 % 9 then ~l~0 % 4294967296 % 9 - 9 else ~l~0 % 4294967296 % 9) % 4294967296;~v6~0 := 1 + ~v6~0; {38#(and (= main_~v5~0 0) (<= main_~v6~0 1) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (<= 1 main_~v6~0) (= main_~v1~0 0) (= main_~v3~0 0))} is VALID [2022-04-15 13:12:55,388 INFO L290 TraceCheckUtils]: 9: Hoare triple {38#(and (= main_~v5~0 0) (<= main_~v6~0 1) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (<= 1 main_~v6~0) (= main_~v1~0 0) (= main_~v3~0 0))} ~l~0 := 1 + ~l~0; {39#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (< (+ main_~l~0 (* 4294967296 (div (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296))) (+ main_~i~0 main_~k~0 main_~j~0 (* (div main_~l~0 4294967296) 4294967296) main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0 1)) (= main_~i~0 0) (= main_~v4~0 0) (not (<= (+ (div main_~l~0 4294967296) 1) (div (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296))) (<= (+ main_~i~0 main_~k~0 main_~j~0 (* (div main_~l~0 4294967296) 4294967296) main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) (+ main_~l~0 (* 4294967296 (div (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296)))) (= main_~v1~0 0) (= main_~v3~0 0))} is VALID [2022-04-15 13:12:55,391 INFO L272 TraceCheckUtils]: 10: Hoare triple {39#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (< (+ main_~l~0 (* 4294967296 (div (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296))) (+ main_~i~0 main_~k~0 main_~j~0 (* (div main_~l~0 4294967296) 4294967296) main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0 1)) (= main_~i~0 0) (= main_~v4~0 0) (not (<= (+ (div main_~l~0 4294967296) 1) (div (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296))) (<= (+ main_~i~0 main_~k~0 main_~j~0 (* (div main_~l~0 4294967296) 4294967296) main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) (+ main_~l~0 (* 4294967296 (div (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296)))) (= main_~v1~0 0) (= main_~v3~0 0))} call __VERIFIER_assert((if (~i~0 + ~j~0 + ~k~0 + ~v1~0 + ~v2~0 + ~v3~0 + ~v4~0 + ~v5~0 + ~v6~0) % 4294967296 == ~l~0 % 4294967296 then 1 else 0)); {40#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-15 13:12:55,392 INFO L290 TraceCheckUtils]: 11: Hoare triple {40#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {41#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-15 13:12:55,393 INFO L290 TraceCheckUtils]: 12: Hoare triple {41#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {33#false} is VALID [2022-04-15 13:12:55,393 INFO L290 TraceCheckUtils]: 13: Hoare triple {33#false} assume !false; {33#false} is VALID [2022-04-15 13:12:55,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 13:12:55,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 13:12:55,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578453963] [2022-04-15 13:12:55,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578453963] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 13:12:55,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 13:12:55,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-15 13:12:55,397 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 13:12:55,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [667376480] [2022-04-15 13:12:55,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [667376480] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 13:12:55,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 13:12:55,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-15 13:12:55,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257932800] [2022-04-15 13:12:55,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 13:12:55,403 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-15 13:12:55,404 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 13:12:55,407 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:12:55,426 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 13:12:55,427 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-15 13:12:55,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 13:12:55,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-15 13:12:55,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-04-15 13:12:55,446 INFO L87 Difference]: Start difference. First operand has 29 states, 21 states have (on average 1.619047619047619) internal successors, (34), 23 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:12:57,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:00,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:04,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:08,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:10,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:13,124 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:17,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:19,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:23,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:26,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:30,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:32,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:34,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:36,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:41,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:45,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:47,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:48,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 13:13:48,272 INFO L93 Difference]: Finished difference Result 67 states and 97 transitions. [2022-04-15 13:13:48,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-15 13:13:48,273 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-15 13:13:48,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 13:13:48,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:13:48,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 97 transitions. [2022-04-15 13:13:48,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:13:48,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 97 transitions. [2022-04-15 13:13:48,287 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 9 states and 97 transitions. [2022-04-15 13:13:48,405 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 13:13:48,413 INFO L225 Difference]: With dead ends: 67 [2022-04-15 13:13:48,414 INFO L226 Difference]: Without dead ends: 34 [2022-04-15 13:13:48,416 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-04-15 13:13:48,419 INFO L913 BasicCegarLoop]: 28 mSDtfsCounter, 53 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 12 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.0s IncrementalHoareTripleChecker+Time [2022-04-15 13:13:48,419 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 65 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 140 Invalid, 17 Unknown, 0 Unchecked, 36.0s Time] [2022-04-15 13:13:48,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-04-15 13:13:48,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2022-04-15 13:13:48,458 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 13:13:48,459 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 13:13:48,460 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 13:13:48,460 INFO L87 Difference]: Start difference. First operand 34 states. Second operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 13:13:48,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 13:13:48,464 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2022-04-15 13:13:48,464 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2022-04-15 13:13:48,464 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 13:13:48,464 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 13:13:48,465 INFO L74 IsIncluded]: Start isIncluded. First operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 34 states. [2022-04-15 13:13:48,465 INFO L87 Difference]: Start difference. First operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 34 states. [2022-04-15 13:13:48,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 13:13:48,468 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2022-04-15 13:13:48,468 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2022-04-15 13:13:48,469 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 13:13:48,469 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 13:13:48,469 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 13:13:48,469 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 13:13:48,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 13:13:48,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2022-04-15 13:13:48,473 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 14 [2022-04-15 13:13:48,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 13:13:48,473 INFO L478 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2022-04-15 13:13:48,474 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:13:48,474 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 32 states and 41 transitions. [2022-04-15 13:13:48,529 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 13:13:48,530 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2022-04-15 13:13:48,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-15 13:13:48,530 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 13:13:48,531 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 13:13:48,531 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 13:13:48,531 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 13:13:48,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 13:13:48,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1047670141, now seen corresponding path program 1 times [2022-04-15 13:13:48,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 13:13:48,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1323968830] [2022-04-15 13:13:48,533 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 13:13:48,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1047670141, now seen corresponding path program 2 times [2022-04-15 13:13:48,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 13:13:48,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006556739] [2022-04-15 13:13:48,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 13:13:48,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 13:13:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 13:13:48,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 13:13:48,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 13:13:48,874 INFO L290 TraceCheckUtils]: 0: Hoare triple {331#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#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(8, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 20000001; {332#(and (<= 20000001 ~SIZE~0) (<= ~SIZE~0 20000001))} is VALID [2022-04-15 13:13:48,875 INFO L290 TraceCheckUtils]: 1: Hoare triple {332#(and (<= 20000001 ~SIZE~0) (<= ~SIZE~0 20000001))} assume true; {332#(and (<= 20000001 ~SIZE~0) (<= ~SIZE~0 20000001))} is VALID [2022-04-15 13:13:48,877 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {332#(and (<= 20000001 ~SIZE~0) (<= ~SIZE~0 20000001))} {323#true} #91#return; {328#(and (<= ~SIZE~0 20000001) (not (<= (+ (div ~SIZE~0 4294967296) 1) 0)))} is VALID [2022-04-15 13:13:48,878 INFO L272 TraceCheckUtils]: 0: Hoare triple {323#true} call ULTIMATE.init(); {331#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 13:13:48,879 INFO L290 TraceCheckUtils]: 1: Hoare triple {331#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#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(8, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 20000001; {332#(and (<= 20000001 ~SIZE~0) (<= ~SIZE~0 20000001))} is VALID [2022-04-15 13:13:48,879 INFO L290 TraceCheckUtils]: 2: Hoare triple {332#(and (<= 20000001 ~SIZE~0) (<= ~SIZE~0 20000001))} assume true; {332#(and (<= 20000001 ~SIZE~0) (<= ~SIZE~0 20000001))} is VALID [2022-04-15 13:13:48,880 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {332#(and (<= 20000001 ~SIZE~0) (<= ~SIZE~0 20000001))} {323#true} #91#return; {328#(and (<= ~SIZE~0 20000001) (not (<= (+ (div ~SIZE~0 4294967296) 1) 0)))} is VALID [2022-04-15 13:13:48,880 INFO L272 TraceCheckUtils]: 4: Hoare triple {328#(and (<= ~SIZE~0 20000001) (not (<= (+ (div ~SIZE~0 4294967296) 1) 0)))} call #t~ret5 := main(); {328#(and (<= ~SIZE~0 20000001) (not (<= (+ (div ~SIZE~0 4294967296) 1) 0)))} is VALID [2022-04-15 13:13:48,882 INFO L290 TraceCheckUtils]: 5: Hoare triple {328#(and (<= ~SIZE~0 20000001) (not (<= (+ (div ~SIZE~0 4294967296) 1) 0)))} ~n~0 := 0;~i~0 := 0;~k~0 := 0;~j~0 := 0;~l~0 := 0;~v1~0 := 0;~v2~0 := 0;~v3~0 := 0;~v4~0 := 0;~v5~0 := 0;~v6~0 := 0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~n~0 := #t~nondet4;havoc #t~nondet4; {329#(and (= main_~l~0 0) (<= (div ~SIZE~0 4294967296) (div main_~l~0 4294967296)) (not (<= (+ (div ~SIZE~0 4294967296) 1) 0)))} is VALID [2022-04-15 13:13:48,882 INFO L290 TraceCheckUtils]: 6: Hoare triple {329#(and (= main_~l~0 0) (<= (div ~SIZE~0 4294967296) (div main_~l~0 4294967296)) (not (<= (+ (div ~SIZE~0 4294967296) 1) 0)))} assume !!(~n~0 % 4294967296 <= ~SIZE~0 % 4294967296); {330#(= main_~l~0 0)} is VALID [2022-04-15 13:13:48,882 INFO L290 TraceCheckUtils]: 7: Hoare triple {330#(= main_~l~0 0)} assume !!(~l~0 % 4294967296 < ~n~0 % 4294967296); {330#(= main_~l~0 0)} is VALID [2022-04-15 13:13:48,883 INFO L290 TraceCheckUtils]: 8: Hoare triple {330#(= main_~l~0 0)} assume !(0 == (if ~l~0 % 4294967296 < 0 && 0 != ~l~0 % 4294967296 % 9 then ~l~0 % 4294967296 % 9 - 9 else ~l~0 % 4294967296 % 9) % 4294967296); {324#false} is VALID [2022-04-15 13:13:48,883 INFO L290 TraceCheckUtils]: 9: Hoare triple {324#false} assume 0 == (if ~l~0 % 4294967296 < 0 && 0 != ~l~0 % 4294967296 % 8 then ~l~0 % 4294967296 % 8 - 8 else ~l~0 % 4294967296 % 8) % 4294967296;~v5~0 := 1 + ~v5~0; {324#false} is VALID [2022-04-15 13:13:48,883 INFO L290 TraceCheckUtils]: 10: Hoare triple {324#false} ~l~0 := 1 + ~l~0; {324#false} is VALID [2022-04-15 13:13:48,884 INFO L272 TraceCheckUtils]: 11: Hoare triple {324#false} call __VERIFIER_assert((if (~i~0 + ~j~0 + ~k~0 + ~v1~0 + ~v2~0 + ~v3~0 + ~v4~0 + ~v5~0 + ~v6~0) % 4294967296 == ~l~0 % 4294967296 then 1 else 0)); {324#false} is VALID [2022-04-15 13:13:48,884 INFO L290 TraceCheckUtils]: 12: Hoare triple {324#false} ~cond := #in~cond; {324#false} is VALID [2022-04-15 13:13:48,884 INFO L290 TraceCheckUtils]: 13: Hoare triple {324#false} assume 0 == ~cond; {324#false} is VALID [2022-04-15 13:13:48,884 INFO L290 TraceCheckUtils]: 14: Hoare triple {324#false} assume !false; {324#false} is VALID [2022-04-15 13:13:48,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 13:13:48,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 13:13:48,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006556739] [2022-04-15 13:13:48,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006556739] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 13:13:48,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 13:13:48,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-15 13:13:48,886 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 13:13:48,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1323968830] [2022-04-15 13:13:48,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1323968830] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 13:13:48,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 13:13:48,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-15 13:13:48,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638775057] [2022-04-15 13:13:48,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 13:13:48,889 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 4 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-04-15 13:13:48,889 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 13:13:48,889 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 4 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:13:51,083 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 14 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2022-04-15 13:13:51,083 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-15 13:13:51,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 13:13:51,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-15 13:13:51,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-15 13:13:51,085 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 4 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:13:55,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:13:59,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:14:04,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:14:06,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:14:10,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:14:14,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:14:17,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:14:21,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-15 13:14:23,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 13:14:23,924 INFO L93 Difference]: Finished difference Result 49 states and 66 transitions. [2022-04-15 13:14:23,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-15 13:14:23,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 4 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-04-15 13:14:23,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 13:14:23,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 4 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:14:23,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 61 transitions. [2022-04-15 13:14:23,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 4 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:14:23,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 61 transitions. [2022-04-15 13:14:23,929 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 61 transitions. [2022-04-15 13:14:26,169 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 60 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2022-04-15 13:14:26,171 INFO L225 Difference]: With dead ends: 49 [2022-04-15 13:14:26,171 INFO L226 Difference]: Without dead ends: 32 [2022-04-15 13:14:26,172 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-04-15 13:14:26,173 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 60 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-04-15 13:14:26,173 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 37 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 8 Unknown, 0 Unchecked, 16.1s Time] [2022-04-15 13:14:26,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-04-15 13:14:26,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-04-15 13:14:26,229 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 13:14:26,230 INFO L82 GeneralOperation]: Start isEquivalent. First operand 32 states. Second operand has 32 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 13:14:26,230 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand has 32 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 13:14:26,230 INFO L87 Difference]: Start difference. First operand 32 states. Second operand has 32 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 13:14:26,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 13:14:26,233 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2022-04-15 13:14:26,233 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2022-04-15 13:14:26,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 13:14:26,233 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 13:14:26,234 INFO L74 IsIncluded]: Start isIncluded. First operand has 32 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 32 states. [2022-04-15 13:14:26,234 INFO L87 Difference]: Start difference. First operand has 32 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 32 states. [2022-04-15 13:14:26,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 13:14:26,236 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2022-04-15 13:14:26,236 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2022-04-15 13:14:26,236 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 13:14:26,236 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 13:14:26,237 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 13:14:26,237 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 13:14:26,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 13:14:26,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2022-04-15 13:14:26,239 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 15 [2022-04-15 13:14:26,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 13:14:26,239 INFO L478 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2022-04-15 13:14:26,239 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 4 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 13:14:26,239 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 32 states and 40 transitions. [2022-04-15 13:14:26,294 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 13:14:26,294 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2022-04-15 13:14:26,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-15 13:14:26,295 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 13:14:26,295 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 13:14:26,295 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-15 13:14:26,296 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 13:14:26,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 13:14:26,296 INFO L85 PathProgramCache]: Analyzing trace with hash -133245550, now seen corresponding path program 1 times [2022-04-15 13:14:26,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 13:14:26,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [645604629] [2022-04-15 13:14:28,476 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-04-15 13:14:28,478 INFO L85 PathProgramCache]: Analyzing trace with hash 278517724, now seen corresponding path program 1 times [2022-04-15 13:14:28,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 13:14:28,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646345905] [2022-04-15 13:14:28,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 13:14:28,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 13:14:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 13:14:28,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 13:14:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 13:14:29,004 INFO L290 TraceCheckUtils]: 0: Hoare triple {576#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#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(8, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 20000001; {565#true} is VALID [2022-04-15 13:14:29,005 INFO L290 TraceCheckUtils]: 1: Hoare triple {565#true} assume true; {565#true} is VALID [2022-04-15 13:14:29,005 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {565#true} {565#true} #91#return; {565#true} is VALID [2022-04-15 13:14:29,006 INFO L272 TraceCheckUtils]: 0: Hoare triple {565#true} call ULTIMATE.init(); {576#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 13:14:29,006 INFO L290 TraceCheckUtils]: 1: Hoare triple {576#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#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(8, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 20000001; {565#true} is VALID [2022-04-15 13:14:29,008 INFO L290 TraceCheckUtils]: 2: Hoare triple {565#true} assume true; {565#true} is VALID [2022-04-15 13:14:29,008 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {565#true} {565#true} #91#return; {565#true} is VALID [2022-04-15 13:14:29,009 INFO L272 TraceCheckUtils]: 4: Hoare triple {565#true} call #t~ret5 := main(); {565#true} is VALID [2022-04-15 13:14:29,010 INFO L290 TraceCheckUtils]: 5: Hoare triple {565#true} ~n~0 := 0;~i~0 := 0;~k~0 := 0;~j~0 := 0;~l~0 := 0;~v1~0 := 0;~v2~0 := 0;~v3~0 := 0;~v4~0 := 0;~v5~0 := 0;~v6~0 := 0;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~n~0 := #t~nondet4;havoc #t~nondet4; {570#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (= main_~v6~0 0) (= main_~v1~0 0) (= main_~v3~0 0))} is VALID [2022-04-15 13:14:29,011 INFO L290 TraceCheckUtils]: 6: Hoare triple {570#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (= main_~v6~0 0) (= main_~v1~0 0) (= main_~v3~0 0))} assume !!(~n~0 % 4294967296 <= ~SIZE~0 % 4294967296); {570#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (= main_~v6~0 0) (= main_~v1~0 0) (= main_~v3~0 0))} is VALID [2022-04-15 13:14:29,013 INFO L290 TraceCheckUtils]: 7: Hoare triple {570#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (= main_~v6~0 0) (= main_~v1~0 0) (= main_~v3~0 0))} [95] L42-1-->L23_primed: Formula: (let ((.cse0 (= v_main_~v6~0_In_1 v_main_~v6~0_Out_2))) (or (and (= v_main_~l~0_In_1 v_main_~l~0_Out_2) .cse0 (= v_main_~i~0_In_1 v_main_~i~0_In_1) (= v_main_~n~0_In_1 v_main_~n~0_In_1) (= v_main_~v3~0_In_1 v_main_~v3~0_In_1) (= v_main_~j~0_In_1 v_main_~j~0_In_1) (= v_main_~v1~0_In_1 v_main_~v1~0_In_1) (= v_main_~v2~0_In_1 v_main_~v2~0_In_1) (= v_main_~k~0_In_1 v_main_~k~0_In_1) (= v_main_~v5~0_In_1 v_main_~v5~0_In_1) (= v_main_~v4~0_In_1 v_main_~v4~0_In_1)) (let ((.cse1 (mod (+ v_main_~l~0_Out_2 4294967295) 4294967296))) (and (= v_main_~l~0_Out_2 v_main_~l~0_In_1) (< .cse1 (mod v_main_~n~0_In_1 4294967296)) .cse0 (= v_main_~v2~0_In_1 0) (= v_main_~v4~0_In_1 0) (= v_main_~i~0_In_1 0) (= v_main_~v5~0_In_1 0) (= (mod (+ v_main_~v5~0_In_1 v_main_~i~0_In_1 v_main_~v3~0_In_1 v_main_~v1~0_In_1 v_main_~j~0_In_1 v_main_~v4~0_In_1 v_main_~v2~0_In_1 v_main_~k~0_In_1 v_main_~v6~0_Out_2) 4294967296) (mod v_main_~l~0_Out_2 4294967296)) (= v_main_~n~0_In_1 0) (= 0 v_main_~v6~0_Out_2) (= (mod (mod .cse1 9) 4294967296) 0) (= v_main_~j~0_In_1 0) (= v_main_~v3~0_In_1 0) (= v_main_~k~0_In_1 0))))) InVars {main_~l~0=v_main_~l~0_In_1, main_~v1~0=v_main_~v1~0_In_1, main_~v2~0=v_main_~v2~0_In_1, main_~k~0=v_main_~k~0_In_1, main_~v4~0=v_main_~v4~0_In_1, main_~j~0=v_main_~j~0_In_1, main_~v5~0=v_main_~v5~0_In_1, main_~v6~0=v_main_~v6~0_In_1, main_~i~0=v_main_~i~0_In_1, main_~v3~0=v_main_~v3~0_In_1, main_~n~0=v_main_~n~0_In_1} OutVars{main_~l~0=v_main_~l~0_Out_2, main_~v1~0=v_main_~v1~0_In_1, main_~v2~0=v_main_~v2~0_In_1, main_~k~0=v_main_~k~0_In_1, main_~v4~0=v_main_~v4~0_In_1, main_~j~0=v_main_~j~0_In_1, main_~v5~0=v_main_~v5~0_In_1, main_~v6~0=v_main_~v6~0_Out_2, main_~i~0=v_main_~i~0_In_1, main_~v3~0=v_main_~v3~0_In_1, main_~n~0=v_main_~n~0_In_1} AuxVars[] AssignedVars[main_~l~0, main_~v6~0] {571#(and (= main_~v5~0 0) (or (and (= main_~v2~0 0) (= main_~i~0 0) (= main_~v3~0 0)) (not (= main_~v6~0 0))) (= main_~k~0 0) (= main_~j~0 0) (= main_~l~0 0) (or (and (not (<= (+ (div main_~n~0 4294967296) 1) (div main_~l~0 4294967296))) (<= main_~n~0 0)) (= main_~v6~0 0)) (= main_~v4~0 0) (= main_~v1~0 0))} is VALID [2022-04-15 13:14:29,014 INFO L290 TraceCheckUtils]: 8: Hoare triple {571#(and (= main_~v5~0 0) (or (and (= main_~v2~0 0) (= main_~i~0 0) (= main_~v3~0 0)) (not (= main_~v6~0 0))) (= main_~k~0 0) (= main_~j~0 0) (= main_~l~0 0) (or (and (not (<= (+ (div main_~n~0 4294967296) 1) (div main_~l~0 4294967296))) (<= main_~n~0 0)) (= main_~v6~0 0)) (= main_~v4~0 0) (= main_~v1~0 0))} [94] L23_primed-->L23: Formula: (< (mod v_main_~l~0_6 4294967296) (mod v_main_~n~0_6 4294967296)) InVars {main_~l~0=v_main_~l~0_6, main_~n~0=v_main_~n~0_6} OutVars{main_~l~0=v_main_~l~0_6, main_~n~0=v_main_~n~0_6} AuxVars[] AssignedVars[] {570#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (= main_~v6~0 0) (= main_~v1~0 0) (= main_~v3~0 0))} is VALID [2022-04-15 13:14:29,015 INFO L290 TraceCheckUtils]: 9: Hoare triple {570#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (= main_~v6~0 0) (= main_~v1~0 0) (= main_~v3~0 0))} assume 0 == (if ~l~0 % 4294967296 < 0 && 0 != ~l~0 % 4294967296 % 9 then ~l~0 % 4294967296 % 9 - 9 else ~l~0 % 4294967296 % 9) % 4294967296;~v6~0 := 1 + ~v6~0; {572#(and (= main_~v5~0 0) (<= main_~v6~0 1) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (<= 1 main_~v6~0) (= main_~v1~0 0) (= main_~v3~0 0))} is VALID [2022-04-15 13:14:29,016 INFO L290 TraceCheckUtils]: 10: Hoare triple {572#(and (= main_~v5~0 0) (<= main_~v6~0 1) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (<= 1 main_~v6~0) (= main_~v1~0 0) (= main_~v3~0 0))} ~l~0 := 1 + ~l~0; {573#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (< (+ main_~l~0 (* 4294967296 (div (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296))) (+ main_~i~0 main_~k~0 main_~j~0 (* (div main_~l~0 4294967296) 4294967296) main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0 1)) (= main_~i~0 0) (= main_~v4~0 0) (not (<= (+ (div main_~l~0 4294967296) 1) (div (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296))) (<= (+ main_~i~0 main_~k~0 main_~j~0 (* (div main_~l~0 4294967296) 4294967296) main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) (+ main_~l~0 (* 4294967296 (div (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296)))) (= main_~v1~0 0) (= main_~v3~0 0))} is VALID [2022-04-15 13:14:29,023 INFO L272 TraceCheckUtils]: 11: Hoare triple {573#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (< (+ main_~l~0 (* 4294967296 (div (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296))) (+ main_~i~0 main_~k~0 main_~j~0 (* (div main_~l~0 4294967296) 4294967296) main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0 1)) (= main_~i~0 0) (= main_~v4~0 0) (not (<= (+ (div main_~l~0 4294967296) 1) (div (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296))) (<= (+ main_~i~0 main_~k~0 main_~j~0 (* (div main_~l~0 4294967296) 4294967296) main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) (+ main_~l~0 (* 4294967296 (div (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296)))) (= main_~v1~0 0) (= main_~v3~0 0))} call __VERIFIER_assert((if (~i~0 + ~j~0 + ~k~0 + ~v1~0 + ~v2~0 + ~v3~0 + ~v4~0 + ~v5~0 + ~v6~0) % 4294967296 == ~l~0 % 4294967296 then 1 else 0)); {574#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-15 13:14:29,024 INFO L290 TraceCheckUtils]: 12: Hoare triple {574#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {575#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-15 13:14:29,024 INFO L290 TraceCheckUtils]: 13: Hoare triple {575#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {566#false} is VALID [2022-04-15 13:14:29,024 INFO L290 TraceCheckUtils]: 14: Hoare triple {566#false} assume !false; {566#false} is VALID [2022-04-15 13:14:29,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 13:14:29,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 13:14:29,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646345905] [2022-04-15 13:14:29,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646345905] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 13:14:29,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 13:14:29,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-15 13:14:29,466 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 13:14:29,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [645604629] [2022-04-15 13:14:29,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [645604629] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 13:14:29,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 13:14:29,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-15 13:14:29,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852752866] [2022-04-15 13:14:29,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 13:14:29,468 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 10 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2022-04-15 13:14:29,468 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 13:14:29,468 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 10 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-15 13:14:29,483 WARN L143 InductivityCheck]: Transition 582#(= (mod main_~l~0 4294967296) (mod (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296)) ( _ , assume !!(~l~0 % 4294967296 < ~n~0 % 4294967296); , 570#(and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (= main_~v6~0 0) (= main_~v1~0 0) (= main_~v3~0 0)) ) not inductive [2022-04-15 13:14:29,483 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-15 13:14:29,484 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inductivity failed at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.checkInductivity(InductivityCheck.java:103) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.(InductivityCheck.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.constructInterpolantAutomaton(BasicCegarLoop.java:682) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.constructRefinementAutomaton(AbstractCegarLoop.java:547) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:261) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-04-15 13:14:29,487 INFO L158 Benchmark]: Toolchain (without parser) took 106512.61ms. Allocated memory was 179.3MB in the beginning and 272.6MB in the end (delta: 93.3MB). Free memory was 124.3MB in the beginning and 193.9MB in the end (delta: -69.6MB). Peak memory consumption was 25.0MB. Max. memory is 8.0GB. [2022-04-15 13:14:29,487 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 179.3MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 13:14:29,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.68ms. Allocated memory was 179.3MB in the beginning and 272.6MB in the end (delta: 93.3MB). Free memory was 124.1MB in the beginning and 245.2MB in the end (delta: -121.2MB). Peak memory consumption was 13.5MB. Max. memory is 8.0GB. [2022-04-15 13:14:29,488 INFO L158 Benchmark]: Boogie Preprocessor took 57.56ms. Allocated memory is still 272.6MB. Free memory was 245.2MB in the beginning and 243.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-15 13:14:29,488 INFO L158 Benchmark]: RCFGBuilder took 11150.95ms. Allocated memory is still 272.6MB. Free memory was 243.7MB in the beginning and 228.0MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-04-15 13:14:29,488 INFO L158 Benchmark]: TraceAbstraction took 95031.46ms. Allocated memory is still 272.6MB. Free memory was 227.5MB in the beginning and 193.9MB in the end (delta: 33.5MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2022-04-15 13:14:29,490 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 179.3MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 266.68ms. Allocated memory was 179.3MB in the beginning and 272.6MB in the end (delta: 93.3MB). Free memory was 124.1MB in the beginning and 245.2MB in the end (delta: -121.2MB). Peak memory consumption was 13.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.56ms. Allocated memory is still 272.6MB. Free memory was 245.2MB in the beginning and 243.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 11150.95ms. Allocated memory is still 272.6MB. Free memory was 243.7MB in the beginning and 228.0MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 95031.46ms. Allocated memory is still 272.6MB. Free memory was 227.5MB in the beginning and 193.9MB in the end (delta: 33.5MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inductivity failed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inductivity failed: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:145) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-04-15 13:14:29,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...