/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/nested5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-08 10:19:20,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-08 10:19:20,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-08 10:19:20,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-08 10:19:20,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-08 10:19:20,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-08 10:19:20,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-08 10:19:20,953 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 10:19:20,958 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-08 10:19:20,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-08 10:19:20,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-08 10:19:20,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-08 10:19:20,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-08 10:19:20,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-08 10:19:20,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-08 10:19:20,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-08 10:19:20,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-08 10:19:20,959 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-08 10:19:20,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-08 10:19:20,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-08 10:19:20,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-08 10:19:20,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-08 10:19:20,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-08 10:19:20,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 10:19:20,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-08 10:19:20,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-08 10:19:20,960 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-08 10:19:20,960 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-08 10:19:20,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-08 10:19:20,960 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-08 10:19:20,961 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-08 10:19:21,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-08 10:19:21,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-08 10:19:21,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-08 10:19:21,189 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-08 10:19:21,190 INFO L275 PluginConnector]: CDTParser initialized [2022-04-08 10:19:21,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2022-04-08 10:19:21,234 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8d41428a/9048ea1b3dad441b8a9000c155a4718b/FLAGcb2667c7f [2022-04-08 10:19:21,547 INFO L306 CDTParser]: Found 1 translation units. [2022-04-08 10:19:21,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2022-04-08 10:19:21,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8d41428a/9048ea1b3dad441b8a9000c155a4718b/FLAGcb2667c7f [2022-04-08 10:19:22,001 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8d41428a/9048ea1b3dad441b8a9000c155a4718b [2022-04-08 10:19:22,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-08 10:19:22,005 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-08 10:19:22,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-08 10:19:22,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-08 10:19:22,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-08 10:19:22,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 10:19:22" (1/1) ... [2022-04-08 10:19:22,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75860fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:19:22, skipping insertion in model container [2022-04-08 10:19:22,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 10:19:22" (1/1) ... [2022-04-08 10:19:22,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-08 10:19:22,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-08 10:19:22,212 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/nested5-1.c[321,334] [2022-04-08 10:19:22,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 10:19:22,232 INFO L203 MainTranslator]: Completed pre-run [2022-04-08 10:19:22,241 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/nested5-1.c[321,334] [2022-04-08 10:19:22,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 10:19:22,254 INFO L208 MainTranslator]: Completed translation [2022-04-08 10:19:22,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:19:22 WrapperNode [2022-04-08 10:19:22,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-08 10:19:22,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-08 10:19:22,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-08 10:19:22,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-08 10:19:22,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:19:22" (1/1) ... [2022-04-08 10:19:22,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:19:22" (1/1) ... [2022-04-08 10:19:22,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:19:22" (1/1) ... [2022-04-08 10:19:22,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:19:22" (1/1) ... [2022-04-08 10:19:22,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:19:22" (1/1) ... [2022-04-08 10:19:22,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:19:22" (1/1) ... [2022-04-08 10:19:22,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:19:22" (1/1) ... [2022-04-08 10:19:22,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-08 10:19:22,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-08 10:19:22,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-08 10:19:22,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-08 10:19:22,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:19:22" (1/1) ... [2022-04-08 10:19:22,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 10:19:22,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 10:19:22,315 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 10:19:22,320 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 10:19:22,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-08 10:19:22,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-08 10:19:22,338 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-08 10:19:22,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-08 10:19:22,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-08 10:19:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-08 10:19:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-08 10:19:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-08 10:19:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-08 10:19:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-08 10:19:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-08 10:19:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-08 10:19:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-08 10:19:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-08 10:19:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-08 10:19:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-08 10:19:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-08 10:19:22,377 INFO L234 CfgBuilder]: Building ICFG [2022-04-08 10:19:22,378 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-08 10:19:22,531 INFO L275 CfgBuilder]: Performing block encoding [2022-04-08 10:19:22,536 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-08 10:19:22,536 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-04-08 10:19:22,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 10:19:22 BoogieIcfgContainer [2022-04-08 10:19:22,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-08 10:19:22,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-08 10:19:22,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-08 10:19:22,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-08 10:19:22,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.04 10:19:22" (1/3) ... [2022-04-08 10:19:22,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f02f25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 10:19:22, skipping insertion in model container [2022-04-08 10:19:22,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:19:22" (2/3) ... [2022-04-08 10:19:22,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f02f25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 10:19:22, skipping insertion in model container [2022-04-08 10:19:22,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 10:19:22" (3/3) ... [2022-04-08 10:19:22,553 INFO L111 eAbstractionObserver]: Analyzing ICFG nested5-1.c [2022-04-08 10:19:22,556 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-08 10:19:22,556 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-08 10:19:22,582 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-08 10:19:22,586 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 10:19:22,586 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-08 10:19:22,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 20 states have (on average 1.6) internal successors, (32), 21 states have internal predecessors, (32), 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) [2022-04-08 10:19:22,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-08 10:19:22,602 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 10:19:22,602 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 10:19:22,602 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 10:19:22,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 10:19:22,606 INFO L85 PathProgramCache]: Analyzing trace with hash -531959740, now seen corresponding path program 1 times [2022-04-08 10:19:22,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 10:19:22,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1786742498] [2022-04-08 10:19:22,618 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 10:19:22,618 INFO L85 PathProgramCache]: Analyzing trace with hash -531959740, now seen corresponding path program 2 times [2022-04-08 10:19:22,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 10:19:22,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851467597] [2022-04-08 10:19:22,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 10:19:22,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 10:19:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:22,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 10:19:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:22,776 INFO L290 TraceCheckUtils]: 0: Hoare triple {36#(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(12, 2);call #Ultimate.allocInit(12, 3); {31#true} is VALID [2022-04-08 10:19:22,776 INFO L290 TraceCheckUtils]: 1: Hoare triple {31#true} assume true; {31#true} is VALID [2022-04-08 10:19:22,777 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {31#true} {31#true} #85#return; {31#true} is VALID [2022-04-08 10:19:22,778 INFO L272 TraceCheckUtils]: 0: Hoare triple {31#true} call ULTIMATE.init(); {36#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 10:19:22,778 INFO L290 TraceCheckUtils]: 1: Hoare triple {36#(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(12, 2);call #Ultimate.allocInit(12, 3); {31#true} is VALID [2022-04-08 10:19:22,778 INFO L290 TraceCheckUtils]: 2: Hoare triple {31#true} assume true; {31#true} is VALID [2022-04-08 10:19:22,778 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {31#true} {31#true} #85#return; {31#true} is VALID [2022-04-08 10:19:22,779 INFO L272 TraceCheckUtils]: 4: Hoare triple {31#true} call #t~ret9 := main(); {31#true} is VALID [2022-04-08 10:19:22,779 INFO L290 TraceCheckUtils]: 5: Hoare triple {31#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {31#true} is VALID [2022-04-08 10:19:22,779 INFO L290 TraceCheckUtils]: 6: Hoare triple {31#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {31#true} is VALID [2022-04-08 10:19:22,779 INFO L290 TraceCheckUtils]: 7: Hoare triple {31#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {31#true} is VALID [2022-04-08 10:19:22,780 INFO L290 TraceCheckUtils]: 8: Hoare triple {31#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {31#true} is VALID [2022-04-08 10:19:22,780 INFO L290 TraceCheckUtils]: 9: Hoare triple {31#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {31#true} is VALID [2022-04-08 10:19:22,780 INFO L290 TraceCheckUtils]: 10: Hoare triple {31#true} assume !true; {32#false} is VALID [2022-04-08 10:19:22,781 INFO L272 TraceCheckUtils]: 11: Hoare triple {32#false} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {32#false} is VALID [2022-04-08 10:19:22,781 INFO L290 TraceCheckUtils]: 12: Hoare triple {32#false} ~cond := #in~cond; {32#false} is VALID [2022-04-08 10:19:22,781 INFO L290 TraceCheckUtils]: 13: Hoare triple {32#false} assume 0 == ~cond; {32#false} is VALID [2022-04-08 10:19:22,781 INFO L290 TraceCheckUtils]: 14: Hoare triple {32#false} assume !false; {32#false} is VALID [2022-04-08 10:19:22,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 10:19:22,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 10:19:22,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851467597] [2022-04-08 10:19:22,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851467597] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 10:19:22,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 10:19:22,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-08 10:19:22,786 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 10:19:22,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1786742498] [2022-04-08 10:19:22,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1786742498] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 10:19:22,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 10:19:22,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-08 10:19:22,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742499432] [2022-04-08 10:19:22,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 10:19:22,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 15 [2022-04-08 10:19:22,791 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 10:19:22,793 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-04-08 10:19:22,818 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 10:19:22,818 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-08 10:19:22,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 10:19:22,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-08 10:19:22,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-08 10:19:22,832 INFO L87 Difference]: Start difference. First operand has 28 states, 20 states have (on average 1.6) internal successors, (32), 21 states have internal predecessors, (32), 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 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-04-08 10:19:22,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:22,895 INFO L93 Difference]: Finished difference Result 50 states and 71 transitions. [2022-04-08 10:19:22,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-08 10:19:22,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 15 [2022-04-08 10:19:22,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 10:19:22,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-04-08 10:19:22,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2022-04-08 10:19:22,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-04-08 10:19:22,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2022-04-08 10:19:22,915 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 71 transitions. [2022-04-08 10:19:22,993 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 10:19:23,000 INFO L225 Difference]: With dead ends: 50 [2022-04-08 10:19:23,000 INFO L226 Difference]: Without dead ends: 23 [2022-04-08 10:19:23,002 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 10:19:23,007 INFO L913 BasicCegarLoop]: 31 mSDtfsCounter, 23 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-08 10:19:23,010 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 34 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-08 10:19:23,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-04-08 10:19:23,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-04-08 10:19:23,038 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 10:19:23,039 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:23,039 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:23,040 INFO L87 Difference]: Start difference. First operand 23 states. Second operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:23,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:23,044 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2022-04-08 10:19:23,044 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-04-08 10:19:23,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:23,044 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 10:19:23,045 INFO L74 IsIncluded]: Start isIncluded. First operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 23 states. [2022-04-08 10:19:23,045 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 23 states. [2022-04-08 10:19:23,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:23,046 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2022-04-08 10:19:23,047 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-04-08 10:19:23,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:23,047 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 10:19:23,047 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 10:19:23,047 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 10:19:23,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:23,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-04-08 10:19:23,049 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 15 [2022-04-08 10:19:23,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 10:19:23,050 INFO L478 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-04-08 10:19:23,050 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-04-08 10:19:23,050 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 23 states and 27 transitions. [2022-04-08 10:19:23,092 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 10:19:23,093 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-04-08 10:19:23,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-08 10:19:23,093 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 10:19:23,093 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 10:19:23,094 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-08 10:19:23,094 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 10:19:23,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 10:19:23,095 INFO L85 PathProgramCache]: Analyzing trace with hash -537500866, now seen corresponding path program 1 times [2022-04-08 10:19:23,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 10:19:23,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1175692478] [2022-04-08 10:19:23,096 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 10:19:23,096 INFO L85 PathProgramCache]: Analyzing trace with hash -537500866, now seen corresponding path program 2 times [2022-04-08 10:19:23,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 10:19:23,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753354986] [2022-04-08 10:19:23,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 10:19:23,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 10:19:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:23,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 10:19:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:23,183 INFO L290 TraceCheckUtils]: 0: Hoare triple {237#(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(12, 2);call #Ultimate.allocInit(12, 3); {231#true} is VALID [2022-04-08 10:19:23,183 INFO L290 TraceCheckUtils]: 1: Hoare triple {231#true} assume true; {231#true} is VALID [2022-04-08 10:19:23,183 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {231#true} {231#true} #85#return; {231#true} is VALID [2022-04-08 10:19:23,184 INFO L272 TraceCheckUtils]: 0: Hoare triple {231#true} call ULTIMATE.init(); {237#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 10:19:23,185 INFO L290 TraceCheckUtils]: 1: Hoare triple {237#(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(12, 2);call #Ultimate.allocInit(12, 3); {231#true} is VALID [2022-04-08 10:19:23,185 INFO L290 TraceCheckUtils]: 2: Hoare triple {231#true} assume true; {231#true} is VALID [2022-04-08 10:19:23,185 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {231#true} {231#true} #85#return; {231#true} is VALID [2022-04-08 10:19:23,186 INFO L272 TraceCheckUtils]: 4: Hoare triple {231#true} call #t~ret9 := main(); {231#true} is VALID [2022-04-08 10:19:23,186 INFO L290 TraceCheckUtils]: 5: Hoare triple {231#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {231#true} is VALID [2022-04-08 10:19:23,186 INFO L290 TraceCheckUtils]: 6: Hoare triple {231#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {231#true} is VALID [2022-04-08 10:19:23,186 INFO L290 TraceCheckUtils]: 7: Hoare triple {231#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {231#true} is VALID [2022-04-08 10:19:23,186 INFO L290 TraceCheckUtils]: 8: Hoare triple {231#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {231#true} is VALID [2022-04-08 10:19:23,187 INFO L290 TraceCheckUtils]: 9: Hoare triple {231#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {236#(= main_~v~0 0)} is VALID [2022-04-08 10:19:23,187 INFO L290 TraceCheckUtils]: 10: Hoare triple {236#(= main_~v~0 0)} assume !(~v~0 % 4294967296 < 10); {232#false} is VALID [2022-04-08 10:19:23,187 INFO L272 TraceCheckUtils]: 11: Hoare triple {232#false} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {232#false} is VALID [2022-04-08 10:19:23,187 INFO L290 TraceCheckUtils]: 12: Hoare triple {232#false} ~cond := #in~cond; {232#false} is VALID [2022-04-08 10:19:23,187 INFO L290 TraceCheckUtils]: 13: Hoare triple {232#false} assume 0 == ~cond; {232#false} is VALID [2022-04-08 10:19:23,188 INFO L290 TraceCheckUtils]: 14: Hoare triple {232#false} assume !false; {232#false} is VALID [2022-04-08 10:19:23,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 10:19:23,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 10:19:23,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753354986] [2022-04-08 10:19:23,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753354986] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 10:19:23,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 10:19:23,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-08 10:19:23,191 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 10:19:23,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1175692478] [2022-04-08 10:19:23,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1175692478] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 10:19:23,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 10:19:23,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-08 10:19:23,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741128519] [2022-04-08 10:19:23,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 10:19:23,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 15 [2022-04-08 10:19:23,194 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 10:19:23,194 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-04-08 10:19:23,205 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 10:19:23,206 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-08 10:19:23,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 10:19:23,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-08 10:19:23,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-08 10:19:23,207 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-04-08 10:19:23,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:23,311 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2022-04-08 10:19:23,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-08 10:19:23,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 15 [2022-04-08 10:19:23,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 10:19:23,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-04-08 10:19:23,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2022-04-08 10:19:23,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-04-08 10:19:23,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2022-04-08 10:19:23,318 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 61 transitions. [2022-04-08 10:19:23,372 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 10:19:23,375 INFO L225 Difference]: With dead ends: 49 [2022-04-08 10:19:23,375 INFO L226 Difference]: Without dead ends: 32 [2022-04-08 10:19:23,376 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-08 10:19:23,378 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 41 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-08 10:19:23,378 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 31 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-08 10:19:23,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-04-08 10:19:23,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 24. [2022-04-08 10:19:23,387 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 10:19:23,387 INFO L82 GeneralOperation]: Start isEquivalent. First operand 32 states. Second operand has 24 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:23,388 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand has 24 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:23,388 INFO L87 Difference]: Start difference. First operand 32 states. Second operand has 24 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:23,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:23,391 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2022-04-08 10:19:23,391 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2022-04-08 10:19:23,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:23,392 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 10:19:23,393 INFO L74 IsIncluded]: Start isIncluded. First operand has 24 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 32 states. [2022-04-08 10:19:23,394 INFO L87 Difference]: Start difference. First operand has 24 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 32 states. [2022-04-08 10:19:23,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:23,398 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2022-04-08 10:19:23,398 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2022-04-08 10:19:23,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:23,398 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 10:19:23,398 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 10:19:23,398 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 10:19:23,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:23,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-04-08 10:19:23,407 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 15 [2022-04-08 10:19:23,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 10:19:23,408 INFO L478 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-04-08 10:19:23,408 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-04-08 10:19:23,408 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 24 states and 28 transitions. [2022-04-08 10:19:23,434 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 10:19:23,434 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-04-08 10:19:23,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-08 10:19:23,435 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 10:19:23,435 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 10:19:23,435 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-08 10:19:23,435 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 10:19:23,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 10:19:23,436 INFO L85 PathProgramCache]: Analyzing trace with hash -509289700, now seen corresponding path program 1 times [2022-04-08 10:19:23,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 10:19:23,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [776057414] [2022-04-08 10:19:23,457 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-08 10:19:23,458 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-08 10:19:23,458 INFO L85 PathProgramCache]: Analyzing trace with hash -509289700, now seen corresponding path program 2 times [2022-04-08 10:19:23,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 10:19:23,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265394477] [2022-04-08 10:19:23,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 10:19:23,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 10:19:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:23,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 10:19:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:23,572 INFO L290 TraceCheckUtils]: 0: Hoare triple {460#(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(12, 2);call #Ultimate.allocInit(12, 3); {453#true} is VALID [2022-04-08 10:19:23,572 INFO L290 TraceCheckUtils]: 1: Hoare triple {453#true} assume true; {453#true} is VALID [2022-04-08 10:19:23,572 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {453#true} {453#true} #85#return; {453#true} is VALID [2022-04-08 10:19:23,573 INFO L272 TraceCheckUtils]: 0: Hoare triple {453#true} call ULTIMATE.init(); {460#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 10:19:23,573 INFO L290 TraceCheckUtils]: 1: Hoare triple {460#(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(12, 2);call #Ultimate.allocInit(12, 3); {453#true} is VALID [2022-04-08 10:19:23,573 INFO L290 TraceCheckUtils]: 2: Hoare triple {453#true} assume true; {453#true} is VALID [2022-04-08 10:19:23,574 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {453#true} {453#true} #85#return; {453#true} is VALID [2022-04-08 10:19:23,574 INFO L272 TraceCheckUtils]: 4: Hoare triple {453#true} call #t~ret9 := main(); {453#true} is VALID [2022-04-08 10:19:23,574 INFO L290 TraceCheckUtils]: 5: Hoare triple {453#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {453#true} is VALID [2022-04-08 10:19:23,574 INFO L290 TraceCheckUtils]: 6: Hoare triple {453#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {453#true} is VALID [2022-04-08 10:19:23,575 INFO L290 TraceCheckUtils]: 7: Hoare triple {453#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {453#true} is VALID [2022-04-08 10:19:23,575 INFO L290 TraceCheckUtils]: 8: Hoare triple {453#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {453#true} is VALID [2022-04-08 10:19:23,575 INFO L290 TraceCheckUtils]: 9: Hoare triple {453#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {458#(= main_~v~0 0)} is VALID [2022-04-08 10:19:23,576 INFO L290 TraceCheckUtils]: 10: Hoare triple {458#(= main_~v~0 0)} assume !!(~v~0 % 4294967296 < 10); {458#(= main_~v~0 0)} is VALID [2022-04-08 10:19:23,576 INFO L290 TraceCheckUtils]: 11: Hoare triple {458#(= main_~v~0 0)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {459#(and (<= main_~v~0 1) (not (<= (+ (div main_~v~0 4294967296) 1) 0)))} is VALID [2022-04-08 10:19:23,577 INFO L290 TraceCheckUtils]: 12: Hoare triple {459#(and (<= main_~v~0 1) (not (<= (+ (div main_~v~0 4294967296) 1) 0)))} assume !(~v~0 % 4294967296 < 10); {454#false} is VALID [2022-04-08 10:19:23,577 INFO L272 TraceCheckUtils]: 13: Hoare triple {454#false} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {454#false} is VALID [2022-04-08 10:19:23,577 INFO L290 TraceCheckUtils]: 14: Hoare triple {454#false} ~cond := #in~cond; {454#false} is VALID [2022-04-08 10:19:23,577 INFO L290 TraceCheckUtils]: 15: Hoare triple {454#false} assume 0 == ~cond; {454#false} is VALID [2022-04-08 10:19:23,578 INFO L290 TraceCheckUtils]: 16: Hoare triple {454#false} assume !false; {454#false} is VALID [2022-04-08 10:19:23,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 10:19:23,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 10:19:23,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265394477] [2022-04-08 10:19:23,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265394477] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-08 10:19:23,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488712605] [2022-04-08 10:19:23,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-08 10:19:23,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 10:19:23,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 10:19:23,582 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 10:19:23,584 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 10:19:23,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-08 10:19:23,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 10:19:23,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-08 10:19:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:23,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 10:19:23,734 INFO L272 TraceCheckUtils]: 0: Hoare triple {453#true} call ULTIMATE.init(); {453#true} is VALID [2022-04-08 10:19:23,735 INFO L290 TraceCheckUtils]: 1: Hoare triple {453#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(12, 2);call #Ultimate.allocInit(12, 3); {453#true} is VALID [2022-04-08 10:19:23,735 INFO L290 TraceCheckUtils]: 2: Hoare triple {453#true} assume true; {453#true} is VALID [2022-04-08 10:19:23,735 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {453#true} {453#true} #85#return; {453#true} is VALID [2022-04-08 10:19:23,735 INFO L272 TraceCheckUtils]: 4: Hoare triple {453#true} call #t~ret9 := main(); {453#true} is VALID [2022-04-08 10:19:23,735 INFO L290 TraceCheckUtils]: 5: Hoare triple {453#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {453#true} is VALID [2022-04-08 10:19:23,736 INFO L290 TraceCheckUtils]: 6: Hoare triple {453#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {453#true} is VALID [2022-04-08 10:19:23,736 INFO L290 TraceCheckUtils]: 7: Hoare triple {453#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {453#true} is VALID [2022-04-08 10:19:23,736 INFO L290 TraceCheckUtils]: 8: Hoare triple {453#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {453#true} is VALID [2022-04-08 10:19:23,736 INFO L290 TraceCheckUtils]: 9: Hoare triple {453#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {458#(= main_~v~0 0)} is VALID [2022-04-08 10:19:23,737 INFO L290 TraceCheckUtils]: 10: Hoare triple {458#(= main_~v~0 0)} assume !!(~v~0 % 4294967296 < 10); {458#(= main_~v~0 0)} is VALID [2022-04-08 10:19:23,737 INFO L290 TraceCheckUtils]: 11: Hoare triple {458#(= main_~v~0 0)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {497#(= (+ (- 1) main_~v~0) 0)} is VALID [2022-04-08 10:19:23,738 INFO L290 TraceCheckUtils]: 12: Hoare triple {497#(= (+ (- 1) main_~v~0) 0)} assume !(~v~0 % 4294967296 < 10); {454#false} is VALID [2022-04-08 10:19:23,738 INFO L272 TraceCheckUtils]: 13: Hoare triple {454#false} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {454#false} is VALID [2022-04-08 10:19:23,738 INFO L290 TraceCheckUtils]: 14: Hoare triple {454#false} ~cond := #in~cond; {454#false} is VALID [2022-04-08 10:19:23,738 INFO L290 TraceCheckUtils]: 15: Hoare triple {454#false} assume 0 == ~cond; {454#false} is VALID [2022-04-08 10:19:23,739 INFO L290 TraceCheckUtils]: 16: Hoare triple {454#false} assume !false; {454#false} is VALID [2022-04-08 10:19:23,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 10:19:23,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 10:19:23,814 INFO L290 TraceCheckUtils]: 16: Hoare triple {454#false} assume !false; {454#false} is VALID [2022-04-08 10:19:23,817 INFO L290 TraceCheckUtils]: 15: Hoare triple {454#false} assume 0 == ~cond; {454#false} is VALID [2022-04-08 10:19:23,817 INFO L290 TraceCheckUtils]: 14: Hoare triple {454#false} ~cond := #in~cond; {454#false} is VALID [2022-04-08 10:19:23,817 INFO L272 TraceCheckUtils]: 13: Hoare triple {454#false} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {454#false} is VALID [2022-04-08 10:19:23,818 INFO L290 TraceCheckUtils]: 12: Hoare triple {525#(< (mod main_~v~0 4294967296) 10)} assume !(~v~0 % 4294967296 < 10); {454#false} is VALID [2022-04-08 10:19:23,819 INFO L290 TraceCheckUtils]: 11: Hoare triple {529#(< (mod (+ main_~v~0 1) 4294967296) 10)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {525#(< (mod main_~v~0 4294967296) 10)} is VALID [2022-04-08 10:19:23,819 INFO L290 TraceCheckUtils]: 10: Hoare triple {529#(< (mod (+ main_~v~0 1) 4294967296) 10)} assume !!(~v~0 % 4294967296 < 10); {529#(< (mod (+ main_~v~0 1) 4294967296) 10)} is VALID [2022-04-08 10:19:23,820 INFO L290 TraceCheckUtils]: 9: Hoare triple {453#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {529#(< (mod (+ main_~v~0 1) 4294967296) 10)} is VALID [2022-04-08 10:19:23,820 INFO L290 TraceCheckUtils]: 8: Hoare triple {453#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {453#true} is VALID [2022-04-08 10:19:23,820 INFO L290 TraceCheckUtils]: 7: Hoare triple {453#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {453#true} is VALID [2022-04-08 10:19:23,820 INFO L290 TraceCheckUtils]: 6: Hoare triple {453#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {453#true} is VALID [2022-04-08 10:19:23,820 INFO L290 TraceCheckUtils]: 5: Hoare triple {453#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {453#true} is VALID [2022-04-08 10:19:23,821 INFO L272 TraceCheckUtils]: 4: Hoare triple {453#true} call #t~ret9 := main(); {453#true} is VALID [2022-04-08 10:19:23,821 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {453#true} {453#true} #85#return; {453#true} is VALID [2022-04-08 10:19:23,821 INFO L290 TraceCheckUtils]: 2: Hoare triple {453#true} assume true; {453#true} is VALID [2022-04-08 10:19:23,821 INFO L290 TraceCheckUtils]: 1: Hoare triple {453#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(12, 2);call #Ultimate.allocInit(12, 3); {453#true} is VALID [2022-04-08 10:19:23,821 INFO L272 TraceCheckUtils]: 0: Hoare triple {453#true} call ULTIMATE.init(); {453#true} is VALID [2022-04-08 10:19:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 10:19:23,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488712605] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 10:19:23,822 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-08 10:19:23,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-04-08 10:19:23,822 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 10:19:23,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [776057414] [2022-04-08 10:19:23,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [776057414] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 10:19:23,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 10:19:23,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-08 10:19:23,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930651137] [2022-04-08 10:19:23,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 10:19:23,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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 17 [2022-04-08 10:19:23,823 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 10:19:23,824 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-04-08 10:19:23,842 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 10:19:23,842 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-08 10:19:23,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 10:19:23,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-08 10:19:23,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-04-08 10:19:23,843 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-04-08 10:19:23,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:23,991 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2022-04-08 10:19:23,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-08 10:19:23,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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 17 [2022-04-08 10:19:23,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 10:19:23,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-04-08 10:19:23,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 63 transitions. [2022-04-08 10:19:23,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-04-08 10:19:23,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 63 transitions. [2022-04-08 10:19:23,996 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 63 transitions. [2022-04-08 10:19:24,085 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 63 edges. 63 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 10:19:24,087 INFO L225 Difference]: With dead ends: 52 [2022-04-08 10:19:24,087 INFO L226 Difference]: Without dead ends: 34 [2022-04-08 10:19:24,088 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-04-08 10:19:24,091 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 43 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-08 10:19:24,093 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 36 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-08 10:19:24,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-04-08 10:19:24,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2022-04-08 10:19:24,101 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 10:19:24,102 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand has 26 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:24,102 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand has 26 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:24,102 INFO L87 Difference]: Start difference. First operand 34 states. Second operand has 26 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:24,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:24,103 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2022-04-08 10:19:24,103 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2022-04-08 10:19:24,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:24,104 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 10:19:24,104 INFO L74 IsIncluded]: Start isIncluded. First operand has 26 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 34 states. [2022-04-08 10:19:24,104 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 34 states. [2022-04-08 10:19:24,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:24,105 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2022-04-08 10:19:24,105 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2022-04-08 10:19:24,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:24,106 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 10:19:24,106 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 10:19:24,106 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 10:19:24,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:24,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-04-08 10:19:24,107 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 17 [2022-04-08 10:19:24,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 10:19:24,107 INFO L478 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-04-08 10:19:24,107 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-04-08 10:19:24,107 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 26 states and 30 transitions. [2022-04-08 10:19:24,137 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 10:19:24,137 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-04-08 10:19:24,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-04-08 10:19:24,137 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 10:19:24,137 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 10:19:24,156 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 10:19:24,354 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 10:19:24,354 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 10:19:24,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 10:19:24,355 INFO L85 PathProgramCache]: Analyzing trace with hash 831837050, now seen corresponding path program 3 times [2022-04-08 10:19:24,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 10:19:24,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [575280304] [2022-04-08 10:19:24,358 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-08 10:19:24,359 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-08 10:19:24,359 INFO L85 PathProgramCache]: Analyzing trace with hash 831837050, now seen corresponding path program 4 times [2022-04-08 10:19:24,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 10:19:24,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989312648] [2022-04-08 10:19:24,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 10:19:24,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 10:19:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:24,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 10:19:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:24,445 INFO L290 TraceCheckUtils]: 0: Hoare triple {802#(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(12, 2);call #Ultimate.allocInit(12, 3); {794#true} is VALID [2022-04-08 10:19:24,445 INFO L290 TraceCheckUtils]: 1: Hoare triple {794#true} assume true; {794#true} is VALID [2022-04-08 10:19:24,445 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {794#true} {794#true} #85#return; {794#true} is VALID [2022-04-08 10:19:24,446 INFO L272 TraceCheckUtils]: 0: Hoare triple {794#true} call ULTIMATE.init(); {802#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 10:19:24,446 INFO L290 TraceCheckUtils]: 1: Hoare triple {802#(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(12, 2);call #Ultimate.allocInit(12, 3); {794#true} is VALID [2022-04-08 10:19:24,446 INFO L290 TraceCheckUtils]: 2: Hoare triple {794#true} assume true; {794#true} is VALID [2022-04-08 10:19:24,446 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {794#true} {794#true} #85#return; {794#true} is VALID [2022-04-08 10:19:24,446 INFO L272 TraceCheckUtils]: 4: Hoare triple {794#true} call #t~ret9 := main(); {794#true} is VALID [2022-04-08 10:19:24,447 INFO L290 TraceCheckUtils]: 5: Hoare triple {794#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {794#true} is VALID [2022-04-08 10:19:24,447 INFO L290 TraceCheckUtils]: 6: Hoare triple {794#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {794#true} is VALID [2022-04-08 10:19:24,447 INFO L290 TraceCheckUtils]: 7: Hoare triple {794#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {794#true} is VALID [2022-04-08 10:19:24,447 INFO L290 TraceCheckUtils]: 8: Hoare triple {794#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {794#true} is VALID [2022-04-08 10:19:24,447 INFO L290 TraceCheckUtils]: 9: Hoare triple {794#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {799#(= main_~v~0 0)} is VALID [2022-04-08 10:19:24,449 INFO L290 TraceCheckUtils]: 10: Hoare triple {799#(= main_~v~0 0)} assume !!(~v~0 % 4294967296 < 10); {799#(= main_~v~0 0)} is VALID [2022-04-08 10:19:24,450 INFO L290 TraceCheckUtils]: 11: Hoare triple {799#(= main_~v~0 0)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {800#(and (<= main_~v~0 1) (<= 1 main_~v~0))} is VALID [2022-04-08 10:19:24,450 INFO L290 TraceCheckUtils]: 12: Hoare triple {800#(and (<= main_~v~0 1) (<= 1 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {800#(and (<= main_~v~0 1) (<= 1 main_~v~0))} is VALID [2022-04-08 10:19:24,450 INFO L290 TraceCheckUtils]: 13: Hoare triple {800#(and (<= main_~v~0 1) (<= 1 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {801#(and (not (<= (+ (div main_~v~0 4294967296) 1) 0)) (<= main_~v~0 2))} is VALID [2022-04-08 10:19:24,451 INFO L290 TraceCheckUtils]: 14: Hoare triple {801#(and (not (<= (+ (div main_~v~0 4294967296) 1) 0)) (<= main_~v~0 2))} assume !(~v~0 % 4294967296 < 10); {795#false} is VALID [2022-04-08 10:19:24,451 INFO L272 TraceCheckUtils]: 15: Hoare triple {795#false} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {795#false} is VALID [2022-04-08 10:19:24,451 INFO L290 TraceCheckUtils]: 16: Hoare triple {795#false} ~cond := #in~cond; {795#false} is VALID [2022-04-08 10:19:24,451 INFO L290 TraceCheckUtils]: 17: Hoare triple {795#false} assume 0 == ~cond; {795#false} is VALID [2022-04-08 10:19:24,451 INFO L290 TraceCheckUtils]: 18: Hoare triple {795#false} assume !false; {795#false} is VALID [2022-04-08 10:19:24,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 10:19:24,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 10:19:24,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989312648] [2022-04-08 10:19:24,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989312648] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-08 10:19:24,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567459522] [2022-04-08 10:19:24,452 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-08 10:19:24,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 10:19:24,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 10:19:24,453 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 10:19:24,473 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 10:19:24,490 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-08 10:19:24,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 10:19:24,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-08 10:19:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:24,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 10:19:24,726 INFO L272 TraceCheckUtils]: 0: Hoare triple {794#true} call ULTIMATE.init(); {794#true} is VALID [2022-04-08 10:19:24,726 INFO L290 TraceCheckUtils]: 1: Hoare triple {794#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(12, 2);call #Ultimate.allocInit(12, 3); {794#true} is VALID [2022-04-08 10:19:24,726 INFO L290 TraceCheckUtils]: 2: Hoare triple {794#true} assume true; {794#true} is VALID [2022-04-08 10:19:24,726 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {794#true} {794#true} #85#return; {794#true} is VALID [2022-04-08 10:19:24,727 INFO L272 TraceCheckUtils]: 4: Hoare triple {794#true} call #t~ret9 := main(); {794#true} is VALID [2022-04-08 10:19:24,727 INFO L290 TraceCheckUtils]: 5: Hoare triple {794#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {794#true} is VALID [2022-04-08 10:19:24,727 INFO L290 TraceCheckUtils]: 6: Hoare triple {794#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {794#true} is VALID [2022-04-08 10:19:24,727 INFO L290 TraceCheckUtils]: 7: Hoare triple {794#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {794#true} is VALID [2022-04-08 10:19:24,727 INFO L290 TraceCheckUtils]: 8: Hoare triple {794#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {794#true} is VALID [2022-04-08 10:19:24,727 INFO L290 TraceCheckUtils]: 9: Hoare triple {794#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {799#(= main_~v~0 0)} is VALID [2022-04-08 10:19:24,728 INFO L290 TraceCheckUtils]: 10: Hoare triple {799#(= main_~v~0 0)} assume !!(~v~0 % 4294967296 < 10); {799#(= main_~v~0 0)} is VALID [2022-04-08 10:19:24,735 INFO L290 TraceCheckUtils]: 11: Hoare triple {799#(= main_~v~0 0)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {800#(and (<= main_~v~0 1) (<= 1 main_~v~0))} is VALID [2022-04-08 10:19:24,738 INFO L290 TraceCheckUtils]: 12: Hoare triple {800#(and (<= main_~v~0 1) (<= 1 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {800#(and (<= main_~v~0 1) (<= 1 main_~v~0))} is VALID [2022-04-08 10:19:24,738 INFO L290 TraceCheckUtils]: 13: Hoare triple {800#(and (<= main_~v~0 1) (<= 1 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {845#(and (<= 2 main_~v~0) (<= main_~v~0 2))} is VALID [2022-04-08 10:19:24,739 INFO L290 TraceCheckUtils]: 14: Hoare triple {845#(and (<= 2 main_~v~0) (<= main_~v~0 2))} assume !(~v~0 % 4294967296 < 10); {795#false} is VALID [2022-04-08 10:19:24,739 INFO L272 TraceCheckUtils]: 15: Hoare triple {795#false} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {795#false} is VALID [2022-04-08 10:19:24,739 INFO L290 TraceCheckUtils]: 16: Hoare triple {795#false} ~cond := #in~cond; {795#false} is VALID [2022-04-08 10:19:24,739 INFO L290 TraceCheckUtils]: 17: Hoare triple {795#false} assume 0 == ~cond; {795#false} is VALID [2022-04-08 10:19:24,740 INFO L290 TraceCheckUtils]: 18: Hoare triple {795#false} assume !false; {795#false} is VALID [2022-04-08 10:19:24,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 10:19:24,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 10:19:24,834 INFO L290 TraceCheckUtils]: 18: Hoare triple {795#false} assume !false; {795#false} is VALID [2022-04-08 10:19:24,834 INFO L290 TraceCheckUtils]: 17: Hoare triple {795#false} assume 0 == ~cond; {795#false} is VALID [2022-04-08 10:19:24,834 INFO L290 TraceCheckUtils]: 16: Hoare triple {795#false} ~cond := #in~cond; {795#false} is VALID [2022-04-08 10:19:24,834 INFO L272 TraceCheckUtils]: 15: Hoare triple {795#false} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {795#false} is VALID [2022-04-08 10:19:24,835 INFO L290 TraceCheckUtils]: 14: Hoare triple {873#(< (mod main_~v~0 4294967296) 10)} assume !(~v~0 % 4294967296 < 10); {795#false} is VALID [2022-04-08 10:19:24,835 INFO L290 TraceCheckUtils]: 13: Hoare triple {877#(< (mod (+ main_~v~0 1) 4294967296) 10)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {873#(< (mod main_~v~0 4294967296) 10)} is VALID [2022-04-08 10:19:24,836 INFO L290 TraceCheckUtils]: 12: Hoare triple {877#(< (mod (+ main_~v~0 1) 4294967296) 10)} assume !!(~v~0 % 4294967296 < 10); {877#(< (mod (+ main_~v~0 1) 4294967296) 10)} is VALID [2022-04-08 10:19:24,836 INFO L290 TraceCheckUtils]: 11: Hoare triple {884#(< (mod (+ main_~v~0 2) 4294967296) 10)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {877#(< (mod (+ main_~v~0 1) 4294967296) 10)} is VALID [2022-04-08 10:19:24,837 INFO L290 TraceCheckUtils]: 10: Hoare triple {884#(< (mod (+ main_~v~0 2) 4294967296) 10)} assume !!(~v~0 % 4294967296 < 10); {884#(< (mod (+ main_~v~0 2) 4294967296) 10)} is VALID [2022-04-08 10:19:24,837 INFO L290 TraceCheckUtils]: 9: Hoare triple {794#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {884#(< (mod (+ main_~v~0 2) 4294967296) 10)} is VALID [2022-04-08 10:19:24,837 INFO L290 TraceCheckUtils]: 8: Hoare triple {794#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {794#true} is VALID [2022-04-08 10:19:24,838 INFO L290 TraceCheckUtils]: 7: Hoare triple {794#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {794#true} is VALID [2022-04-08 10:19:24,838 INFO L290 TraceCheckUtils]: 6: Hoare triple {794#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {794#true} is VALID [2022-04-08 10:19:24,838 INFO L290 TraceCheckUtils]: 5: Hoare triple {794#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {794#true} is VALID [2022-04-08 10:19:24,838 INFO L272 TraceCheckUtils]: 4: Hoare triple {794#true} call #t~ret9 := main(); {794#true} is VALID [2022-04-08 10:19:24,838 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {794#true} {794#true} #85#return; {794#true} is VALID [2022-04-08 10:19:24,838 INFO L290 TraceCheckUtils]: 2: Hoare triple {794#true} assume true; {794#true} is VALID [2022-04-08 10:19:24,838 INFO L290 TraceCheckUtils]: 1: Hoare triple {794#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(12, 2);call #Ultimate.allocInit(12, 3); {794#true} is VALID [2022-04-08 10:19:24,838 INFO L272 TraceCheckUtils]: 0: Hoare triple {794#true} call ULTIMATE.init(); {794#true} is VALID [2022-04-08 10:19:24,838 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 10:19:24,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567459522] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 10:19:24,839 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-08 10:19:24,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2022-04-08 10:19:24,839 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 10:19:24,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [575280304] [2022-04-08 10:19:24,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [575280304] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 10:19:24,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 10:19:24,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-08 10:19:24,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754734261] [2022-04-08 10:19:24,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 10:19:24,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 19 [2022-04-08 10:19:24,840 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 10:19:24,840 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2022-04-08 10:19:24,851 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 10:19:24,851 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-08 10:19:24,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 10:19:24,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-08 10:19:24,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-04-08 10:19:24,852 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2022-04-08 10:19:24,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:24,994 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2022-04-08 10:19:24,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-08 10:19:24,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 19 [2022-04-08 10:19:24,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 10:19:24,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2022-04-08 10:19:24,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 65 transitions. [2022-04-08 10:19:24,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2022-04-08 10:19:24,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 65 transitions. [2022-04-08 10:19:24,997 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 65 transitions. [2022-04-08 10:19:25,035 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 10:19:25,036 INFO L225 Difference]: With dead ends: 56 [2022-04-08 10:19:25,036 INFO L226 Difference]: Without dead ends: 36 [2022-04-08 10:19:25,036 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-04-08 10:19:25,037 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 54 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-08 10:19:25,037 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 31 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-08 10:19:25,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-04-08 10:19:25,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2022-04-08 10:19:25,046 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 10:19:25,046 INFO L82 GeneralOperation]: Start isEquivalent. First operand 36 states. Second operand has 28 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:25,046 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand has 28 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:25,047 INFO L87 Difference]: Start difference. First operand 36 states. Second operand has 28 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:25,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:25,048 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2022-04-08 10:19:25,048 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2022-04-08 10:19:25,048 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:25,048 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 10:19:25,048 INFO L74 IsIncluded]: Start isIncluded. First operand has 28 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 36 states. [2022-04-08 10:19:25,048 INFO L87 Difference]: Start difference. First operand has 28 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 36 states. [2022-04-08 10:19:25,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:25,049 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2022-04-08 10:19:25,049 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2022-04-08 10:19:25,050 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:25,050 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 10:19:25,050 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 10:19:25,050 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 10:19:25,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:25,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-04-08 10:19:25,051 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 19 [2022-04-08 10:19:25,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 10:19:25,051 INFO L478 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-04-08 10:19:25,051 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2022-04-08 10:19:25,051 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 28 states and 32 transitions. [2022-04-08 10:19:25,087 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 10:19:25,087 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-04-08 10:19:25,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-04-08 10:19:25,088 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 10:19:25,088 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 10:19:25,105 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 10:19:25,288 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,SelfDestructingSolverStorable3 [2022-04-08 10:19:25,288 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 10:19:25,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 10:19:25,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1164455000, now seen corresponding path program 5 times [2022-04-08 10:19:25,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 10:19:25,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1031273627] [2022-04-08 10:19:25,292 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-08 10:19:25,292 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-08 10:19:25,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1164455000, now seen corresponding path program 6 times [2022-04-08 10:19:25,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 10:19:25,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849455296] [2022-04-08 10:19:25,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 10:19:25,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 10:19:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:25,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 10:19:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:25,378 INFO L290 TraceCheckUtils]: 0: Hoare triple {1176#(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(12, 2);call #Ultimate.allocInit(12, 3); {1167#true} is VALID [2022-04-08 10:19:25,378 INFO L290 TraceCheckUtils]: 1: Hoare triple {1167#true} assume true; {1167#true} is VALID [2022-04-08 10:19:25,378 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {1167#true} {1167#true} #85#return; {1167#true} is VALID [2022-04-08 10:19:25,378 INFO L272 TraceCheckUtils]: 0: Hoare triple {1167#true} call ULTIMATE.init(); {1176#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 10:19:25,379 INFO L290 TraceCheckUtils]: 1: Hoare triple {1176#(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(12, 2);call #Ultimate.allocInit(12, 3); {1167#true} is VALID [2022-04-08 10:19:25,379 INFO L290 TraceCheckUtils]: 2: Hoare triple {1167#true} assume true; {1167#true} is VALID [2022-04-08 10:19:25,379 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1167#true} {1167#true} #85#return; {1167#true} is VALID [2022-04-08 10:19:25,379 INFO L272 TraceCheckUtils]: 4: Hoare triple {1167#true} call #t~ret9 := main(); {1167#true} is VALID [2022-04-08 10:19:25,379 INFO L290 TraceCheckUtils]: 5: Hoare triple {1167#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {1167#true} is VALID [2022-04-08 10:19:25,379 INFO L290 TraceCheckUtils]: 6: Hoare triple {1167#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {1167#true} is VALID [2022-04-08 10:19:25,379 INFO L290 TraceCheckUtils]: 7: Hoare triple {1167#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {1167#true} is VALID [2022-04-08 10:19:25,379 INFO L290 TraceCheckUtils]: 8: Hoare triple {1167#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {1167#true} is VALID [2022-04-08 10:19:25,380 INFO L290 TraceCheckUtils]: 9: Hoare triple {1167#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {1172#(= main_~v~0 0)} is VALID [2022-04-08 10:19:25,380 INFO L290 TraceCheckUtils]: 10: Hoare triple {1172#(= main_~v~0 0)} assume !!(~v~0 % 4294967296 < 10); {1172#(= main_~v~0 0)} is VALID [2022-04-08 10:19:25,380 INFO L290 TraceCheckUtils]: 11: Hoare triple {1172#(= main_~v~0 0)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1173#(and (<= main_~v~0 1) (<= 1 main_~v~0))} is VALID [2022-04-08 10:19:25,381 INFO L290 TraceCheckUtils]: 12: Hoare triple {1173#(and (<= main_~v~0 1) (<= 1 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {1173#(and (<= main_~v~0 1) (<= 1 main_~v~0))} is VALID [2022-04-08 10:19:25,381 INFO L290 TraceCheckUtils]: 13: Hoare triple {1173#(and (<= main_~v~0 1) (<= 1 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1174#(and (<= 2 main_~v~0) (<= main_~v~0 2))} is VALID [2022-04-08 10:19:25,382 INFO L290 TraceCheckUtils]: 14: Hoare triple {1174#(and (<= 2 main_~v~0) (<= main_~v~0 2))} assume !!(~v~0 % 4294967296 < 10); {1174#(and (<= 2 main_~v~0) (<= main_~v~0 2))} is VALID [2022-04-08 10:19:25,382 INFO L290 TraceCheckUtils]: 15: Hoare triple {1174#(and (<= 2 main_~v~0) (<= main_~v~0 2))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1175#(and (not (<= (+ (div main_~v~0 4294967296) 1) 0)) (<= main_~v~0 3))} is VALID [2022-04-08 10:19:25,383 INFO L290 TraceCheckUtils]: 16: Hoare triple {1175#(and (not (<= (+ (div main_~v~0 4294967296) 1) 0)) (<= main_~v~0 3))} assume !(~v~0 % 4294967296 < 10); {1168#false} is VALID [2022-04-08 10:19:25,383 INFO L272 TraceCheckUtils]: 17: Hoare triple {1168#false} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {1168#false} is VALID [2022-04-08 10:19:25,383 INFO L290 TraceCheckUtils]: 18: Hoare triple {1168#false} ~cond := #in~cond; {1168#false} is VALID [2022-04-08 10:19:25,383 INFO L290 TraceCheckUtils]: 19: Hoare triple {1168#false} assume 0 == ~cond; {1168#false} is VALID [2022-04-08 10:19:25,383 INFO L290 TraceCheckUtils]: 20: Hoare triple {1168#false} assume !false; {1168#false} is VALID [2022-04-08 10:19:25,383 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 10:19:25,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 10:19:25,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849455296] [2022-04-08 10:19:25,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849455296] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-08 10:19:25,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606974333] [2022-04-08 10:19:25,384 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-08 10:19:25,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 10:19:25,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 10:19:25,385 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 10:19:25,386 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 10:19:25,433 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-04-08 10:19:25,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 10:19:25,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 12 conjunts are in the unsatisfiable core [2022-04-08 10:19:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:25,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 10:19:25,847 INFO L272 TraceCheckUtils]: 0: Hoare triple {1167#true} call ULTIMATE.init(); {1167#true} is VALID [2022-04-08 10:19:25,847 INFO L290 TraceCheckUtils]: 1: Hoare triple {1167#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(12, 2);call #Ultimate.allocInit(12, 3); {1167#true} is VALID [2022-04-08 10:19:25,848 INFO L290 TraceCheckUtils]: 2: Hoare triple {1167#true} assume true; {1167#true} is VALID [2022-04-08 10:19:25,848 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1167#true} {1167#true} #85#return; {1167#true} is VALID [2022-04-08 10:19:25,848 INFO L272 TraceCheckUtils]: 4: Hoare triple {1167#true} call #t~ret9 := main(); {1167#true} is VALID [2022-04-08 10:19:25,848 INFO L290 TraceCheckUtils]: 5: Hoare triple {1167#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {1167#true} is VALID [2022-04-08 10:19:25,848 INFO L290 TraceCheckUtils]: 6: Hoare triple {1167#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {1167#true} is VALID [2022-04-08 10:19:25,848 INFO L290 TraceCheckUtils]: 7: Hoare triple {1167#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {1167#true} is VALID [2022-04-08 10:19:25,848 INFO L290 TraceCheckUtils]: 8: Hoare triple {1167#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {1167#true} is VALID [2022-04-08 10:19:25,848 INFO L290 TraceCheckUtils]: 9: Hoare triple {1167#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {1167#true} is VALID [2022-04-08 10:19:25,848 INFO L290 TraceCheckUtils]: 10: Hoare triple {1167#true} assume !!(~v~0 % 4294967296 < 10); {1167#true} is VALID [2022-04-08 10:19:25,849 INFO L290 TraceCheckUtils]: 11: Hoare triple {1167#true} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1167#true} is VALID [2022-04-08 10:19:25,849 INFO L290 TraceCheckUtils]: 12: Hoare triple {1167#true} assume !!(~v~0 % 4294967296 < 10); {1216#(< (mod main_~v~0 4294967296) 10)} is VALID [2022-04-08 10:19:25,850 INFO L290 TraceCheckUtils]: 13: Hoare triple {1216#(< (mod main_~v~0 4294967296) 10)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1220#(< (mod (+ main_~v~0 4294967295) 4294967296) 10)} is VALID [2022-04-08 10:19:25,850 INFO L290 TraceCheckUtils]: 14: Hoare triple {1220#(< (mod (+ main_~v~0 4294967295) 4294967296) 10)} assume !!(~v~0 % 4294967296 < 10); {1220#(< (mod (+ main_~v~0 4294967295) 4294967296) 10)} is VALID [2022-04-08 10:19:25,851 INFO L290 TraceCheckUtils]: 15: Hoare triple {1220#(< (mod (+ main_~v~0 4294967295) 4294967296) 10)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1227#(< (mod (+ main_~v~0 4294967294) 4294967296) 10)} is VALID [2022-04-08 10:19:25,851 INFO L290 TraceCheckUtils]: 16: Hoare triple {1227#(< (mod (+ main_~v~0 4294967294) 4294967296) 10)} assume !(~v~0 % 4294967296 < 10); {1231#(and (< (mod (+ main_~v~0 4294967294) 4294967296) 10) (not (< (mod main_~v~0 4294967296) 10)))} is VALID [2022-04-08 10:19:25,858 INFO L272 TraceCheckUtils]: 17: Hoare triple {1231#(and (< (mod (+ main_~v~0 4294967294) 4294967296) 10) (not (< (mod main_~v~0 4294967296) 10)))} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {1235#(and (<= 0 |__VERIFIER_assert_#in~cond|) (< (div (+ (* (- 1) (div (+ (- 2) |__VERIFIER_assert_#in~cond|) (- 4))) (div (+ 4294967295 (* (- 1) |__VERIFIER_assert_#in~cond|)) 4)) (- 1073741824)) (+ (div (+ (div (+ (* (- 1) |__VERIFIER_assert_#in~cond|) 11) 4) (* (- 1) (div (+ |__VERIFIER_assert_#in~cond| (- 10)) (- 4)))) 1073741824) 1)) (< |__VERIFIER_assert_#in~cond| 4))} is VALID [2022-04-08 10:19:25,858 INFO L290 TraceCheckUtils]: 18: Hoare triple {1235#(and (<= 0 |__VERIFIER_assert_#in~cond|) (< (div (+ (* (- 1) (div (+ (- 2) |__VERIFIER_assert_#in~cond|) (- 4))) (div (+ 4294967295 (* (- 1) |__VERIFIER_assert_#in~cond|)) 4)) (- 1073741824)) (+ (div (+ (div (+ (* (- 1) |__VERIFIER_assert_#in~cond|) 11) 4) (* (- 1) (div (+ |__VERIFIER_assert_#in~cond| (- 10)) (- 4)))) 1073741824) 1)) (< |__VERIFIER_assert_#in~cond| 4))} ~cond := #in~cond; {1239#(and (< __VERIFIER_assert_~cond 4) (< (div (+ (* (- 1) (div (+ (- 2) __VERIFIER_assert_~cond) (- 4))) (div (+ 4294967295 (* (- 1) __VERIFIER_assert_~cond)) 4)) (- 1073741824)) (+ (div (+ (div (+ 11 (* (- 1) __VERIFIER_assert_~cond)) 4) (* (- 1) (div (+ (- 10) __VERIFIER_assert_~cond) (- 4)))) 1073741824) 1)) (<= 0 __VERIFIER_assert_~cond))} is VALID [2022-04-08 10:19:25,859 INFO L290 TraceCheckUtils]: 19: Hoare triple {1239#(and (< __VERIFIER_assert_~cond 4) (< (div (+ (* (- 1) (div (+ (- 2) __VERIFIER_assert_~cond) (- 4))) (div (+ 4294967295 (* (- 1) __VERIFIER_assert_~cond)) 4)) (- 1073741824)) (+ (div (+ (div (+ 11 (* (- 1) __VERIFIER_assert_~cond)) 4) (* (- 1) (div (+ (- 10) __VERIFIER_assert_~cond) (- 4)))) 1073741824) 1)) (<= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {1168#false} is VALID [2022-04-08 10:19:25,859 INFO L290 TraceCheckUtils]: 20: Hoare triple {1168#false} assume !false; {1168#false} is VALID [2022-04-08 10:19:25,859 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-08 10:19:25,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 10:19:26,215 INFO L290 TraceCheckUtils]: 20: Hoare triple {1168#false} assume !false; {1168#false} is VALID [2022-04-08 10:19:26,216 INFO L290 TraceCheckUtils]: 19: Hoare triple {1249#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {1168#false} is VALID [2022-04-08 10:19:26,216 INFO L290 TraceCheckUtils]: 18: Hoare triple {1253#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {1249#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 10:19:26,217 INFO L272 TraceCheckUtils]: 17: Hoare triple {1257#(not (= (mod main_~v~0 4) 0))} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {1253#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 10:19:26,217 INFO L290 TraceCheckUtils]: 16: Hoare triple {1261#(or (< (mod main_~v~0 4294967296) 10) (not (= (mod main_~v~0 4) 0)))} assume !(~v~0 % 4294967296 < 10); {1257#(not (= (mod main_~v~0 4) 0))} is VALID [2022-04-08 10:19:26,218 INFO L290 TraceCheckUtils]: 15: Hoare triple {1265#(or (< (mod (+ main_~v~0 1) 4294967296) 10) (not (= (mod (+ main_~v~0 1) 4) 0)))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1261#(or (< (mod main_~v~0 4294967296) 10) (not (= (mod main_~v~0 4) 0)))} is VALID [2022-04-08 10:19:26,218 INFO L290 TraceCheckUtils]: 14: Hoare triple {1265#(or (< (mod (+ main_~v~0 1) 4294967296) 10) (not (= (mod (+ main_~v~0 1) 4) 0)))} assume !!(~v~0 % 4294967296 < 10); {1265#(or (< (mod (+ main_~v~0 1) 4294967296) 10) (not (= (mod (+ main_~v~0 1) 4) 0)))} is VALID [2022-04-08 10:19:26,219 INFO L290 TraceCheckUtils]: 13: Hoare triple {1272#(or (< (mod (+ main_~v~0 2) 4294967296) 10) (not (= (mod (+ main_~v~0 2) 4) 0)))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1265#(or (< (mod (+ main_~v~0 1) 4294967296) 10) (not (= (mod (+ main_~v~0 1) 4) 0)))} is VALID [2022-04-08 10:19:26,229 INFO L290 TraceCheckUtils]: 12: Hoare triple {1167#true} assume !!(~v~0 % 4294967296 < 10); {1272#(or (< (mod (+ main_~v~0 2) 4294967296) 10) (not (= (mod (+ main_~v~0 2) 4) 0)))} is VALID [2022-04-08 10:19:26,229 INFO L290 TraceCheckUtils]: 11: Hoare triple {1167#true} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1167#true} is VALID [2022-04-08 10:19:26,229 INFO L290 TraceCheckUtils]: 10: Hoare triple {1167#true} assume !!(~v~0 % 4294967296 < 10); {1167#true} is VALID [2022-04-08 10:19:26,229 INFO L290 TraceCheckUtils]: 9: Hoare triple {1167#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {1167#true} is VALID [2022-04-08 10:19:26,229 INFO L290 TraceCheckUtils]: 8: Hoare triple {1167#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {1167#true} is VALID [2022-04-08 10:19:26,229 INFO L290 TraceCheckUtils]: 7: Hoare triple {1167#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {1167#true} is VALID [2022-04-08 10:19:26,229 INFO L290 TraceCheckUtils]: 6: Hoare triple {1167#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {1167#true} is VALID [2022-04-08 10:19:26,229 INFO L290 TraceCheckUtils]: 5: Hoare triple {1167#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {1167#true} is VALID [2022-04-08 10:19:26,229 INFO L272 TraceCheckUtils]: 4: Hoare triple {1167#true} call #t~ret9 := main(); {1167#true} is VALID [2022-04-08 10:19:26,230 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1167#true} {1167#true} #85#return; {1167#true} is VALID [2022-04-08 10:19:26,230 INFO L290 TraceCheckUtils]: 2: Hoare triple {1167#true} assume true; {1167#true} is VALID [2022-04-08 10:19:26,230 INFO L290 TraceCheckUtils]: 1: Hoare triple {1167#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(12, 2);call #Ultimate.allocInit(12, 3); {1167#true} is VALID [2022-04-08 10:19:26,230 INFO L272 TraceCheckUtils]: 0: Hoare triple {1167#true} call ULTIMATE.init(); {1167#true} is VALID [2022-04-08 10:19:26,230 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-08 10:19:26,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606974333] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 10:19:26,230 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-08 10:19:26,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 19 [2022-04-08 10:19:26,231 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 10:19:26,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1031273627] [2022-04-08 10:19:26,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1031273627] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 10:19:26,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 10:19:26,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-08 10:19:26,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331575648] [2022-04-08 10:19:26,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 10:19:26,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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 21 [2022-04-08 10:19:26,231 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 10:19:26,232 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-04-08 10:19:26,248 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 10:19:26,248 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-08 10:19:26,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 10:19:26,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-08 10:19:26,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-04-08 10:19:26,249 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-04-08 10:19:26,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:26,486 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2022-04-08 10:19:26,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-08 10:19:26,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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 21 [2022-04-08 10:19:26,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 10:19:26,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-04-08 10:19:26,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 67 transitions. [2022-04-08 10:19:26,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-04-08 10:19:26,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 67 transitions. [2022-04-08 10:19:26,491 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 67 transitions. [2022-04-08 10:19:26,532 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 67 edges. 67 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 10:19:26,535 INFO L225 Difference]: With dead ends: 60 [2022-04-08 10:19:26,535 INFO L226 Difference]: Without dead ends: 38 [2022-04-08 10:19:26,535 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2022-04-08 10:19:26,536 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 56 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 10:19:26,536 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 41 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 10:19:26,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-04-08 10:19:26,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30. [2022-04-08 10:19:26,549 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 10:19:26,550 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand has 30 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:26,550 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand has 30 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:26,550 INFO L87 Difference]: Start difference. First operand 38 states. Second operand has 30 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:26,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:26,551 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2022-04-08 10:19:26,551 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2022-04-08 10:19:26,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:26,554 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 10:19:26,554 INFO L74 IsIncluded]: Start isIncluded. First operand has 30 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 38 states. [2022-04-08 10:19:26,555 INFO L87 Difference]: Start difference. First operand has 30 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 38 states. [2022-04-08 10:19:26,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:26,557 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2022-04-08 10:19:26,557 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2022-04-08 10:19:26,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:26,557 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 10:19:26,558 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 10:19:26,558 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 10:19:26,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:26,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-04-08 10:19:26,558 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 21 [2022-04-08 10:19:26,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 10:19:26,559 INFO L478 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-04-08 10:19:26,559 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-04-08 10:19:26,559 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 30 states and 34 transitions. [2022-04-08 10:19:26,583 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 10:19:26,583 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-04-08 10:19:26,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-08 10:19:26,584 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 10:19:26,584 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 10:19:26,589 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 10:19:26,789 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 10:19:26,789 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 10:19:26,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 10:19:26,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1312242250, now seen corresponding path program 7 times [2022-04-08 10:19:26,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 10:19:26,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1811310754] [2022-04-08 10:19:26,795 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-08 10:19:26,795 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-08 10:19:26,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1312242250, now seen corresponding path program 8 times [2022-04-08 10:19:26,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 10:19:26,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675947812] [2022-04-08 10:19:26,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 10:19:26,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 10:19:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:26,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 10:19:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:26,882 INFO L290 TraceCheckUtils]: 0: Hoare triple {1589#(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(12, 2);call #Ultimate.allocInit(12, 3); {1579#true} is VALID [2022-04-08 10:19:26,882 INFO L290 TraceCheckUtils]: 1: Hoare triple {1579#true} assume true; {1579#true} is VALID [2022-04-08 10:19:26,882 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {1579#true} {1579#true} #85#return; {1579#true} is VALID [2022-04-08 10:19:26,883 INFO L272 TraceCheckUtils]: 0: Hoare triple {1579#true} call ULTIMATE.init(); {1589#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 10:19:26,883 INFO L290 TraceCheckUtils]: 1: Hoare triple {1589#(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(12, 2);call #Ultimate.allocInit(12, 3); {1579#true} is VALID [2022-04-08 10:19:26,883 INFO L290 TraceCheckUtils]: 2: Hoare triple {1579#true} assume true; {1579#true} is VALID [2022-04-08 10:19:26,883 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1579#true} {1579#true} #85#return; {1579#true} is VALID [2022-04-08 10:19:26,883 INFO L272 TraceCheckUtils]: 4: Hoare triple {1579#true} call #t~ret9 := main(); {1579#true} is VALID [2022-04-08 10:19:26,883 INFO L290 TraceCheckUtils]: 5: Hoare triple {1579#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {1579#true} is VALID [2022-04-08 10:19:26,883 INFO L290 TraceCheckUtils]: 6: Hoare triple {1579#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {1579#true} is VALID [2022-04-08 10:19:26,884 INFO L290 TraceCheckUtils]: 7: Hoare triple {1579#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {1579#true} is VALID [2022-04-08 10:19:26,884 INFO L290 TraceCheckUtils]: 8: Hoare triple {1579#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {1579#true} is VALID [2022-04-08 10:19:26,884 INFO L290 TraceCheckUtils]: 9: Hoare triple {1579#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {1584#(= main_~v~0 0)} is VALID [2022-04-08 10:19:26,884 INFO L290 TraceCheckUtils]: 10: Hoare triple {1584#(= main_~v~0 0)} assume !!(~v~0 % 4294967296 < 10); {1584#(= main_~v~0 0)} is VALID [2022-04-08 10:19:26,885 INFO L290 TraceCheckUtils]: 11: Hoare triple {1584#(= main_~v~0 0)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1585#(and (<= main_~v~0 1) (<= 1 main_~v~0))} is VALID [2022-04-08 10:19:26,885 INFO L290 TraceCheckUtils]: 12: Hoare triple {1585#(and (<= main_~v~0 1) (<= 1 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {1585#(and (<= main_~v~0 1) (<= 1 main_~v~0))} is VALID [2022-04-08 10:19:26,885 INFO L290 TraceCheckUtils]: 13: Hoare triple {1585#(and (<= main_~v~0 1) (<= 1 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1586#(and (<= 2 main_~v~0) (<= main_~v~0 2))} is VALID [2022-04-08 10:19:26,886 INFO L290 TraceCheckUtils]: 14: Hoare triple {1586#(and (<= 2 main_~v~0) (<= main_~v~0 2))} assume !!(~v~0 % 4294967296 < 10); {1586#(and (<= 2 main_~v~0) (<= main_~v~0 2))} is VALID [2022-04-08 10:19:26,886 INFO L290 TraceCheckUtils]: 15: Hoare triple {1586#(and (<= 2 main_~v~0) (<= main_~v~0 2))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1587#(and (<= main_~v~0 3) (<= 3 main_~v~0))} is VALID [2022-04-08 10:19:26,886 INFO L290 TraceCheckUtils]: 16: Hoare triple {1587#(and (<= main_~v~0 3) (<= 3 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {1587#(and (<= main_~v~0 3) (<= 3 main_~v~0))} is VALID [2022-04-08 10:19:26,887 INFO L290 TraceCheckUtils]: 17: Hoare triple {1587#(and (<= main_~v~0 3) (<= 3 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1588#(and (<= main_~v~0 4) (not (<= (+ (div main_~v~0 4294967296) 1) 0)))} is VALID [2022-04-08 10:19:26,887 INFO L290 TraceCheckUtils]: 18: Hoare triple {1588#(and (<= main_~v~0 4) (not (<= (+ (div main_~v~0 4294967296) 1) 0)))} assume !(~v~0 % 4294967296 < 10); {1580#false} is VALID [2022-04-08 10:19:26,888 INFO L272 TraceCheckUtils]: 19: Hoare triple {1580#false} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {1580#false} is VALID [2022-04-08 10:19:26,888 INFO L290 TraceCheckUtils]: 20: Hoare triple {1580#false} ~cond := #in~cond; {1580#false} is VALID [2022-04-08 10:19:26,888 INFO L290 TraceCheckUtils]: 21: Hoare triple {1580#false} assume 0 == ~cond; {1580#false} is VALID [2022-04-08 10:19:26,888 INFO L290 TraceCheckUtils]: 22: Hoare triple {1580#false} assume !false; {1580#false} is VALID [2022-04-08 10:19:26,888 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 10:19:26,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 10:19:26,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675947812] [2022-04-08 10:19:26,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675947812] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-08 10:19:26,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139910853] [2022-04-08 10:19:26,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-08 10:19:26,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 10:19:26,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 10:19:26,889 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 10:19:26,890 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 10:19:26,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-08 10:19:26,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 10:19:26,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2022-04-08 10:19:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:26,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 10:19:27,117 INFO L272 TraceCheckUtils]: 0: Hoare triple {1579#true} call ULTIMATE.init(); {1579#true} is VALID [2022-04-08 10:19:27,118 INFO L290 TraceCheckUtils]: 1: Hoare triple {1579#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(12, 2);call #Ultimate.allocInit(12, 3); {1579#true} is VALID [2022-04-08 10:19:27,118 INFO L290 TraceCheckUtils]: 2: Hoare triple {1579#true} assume true; {1579#true} is VALID [2022-04-08 10:19:27,118 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1579#true} {1579#true} #85#return; {1579#true} is VALID [2022-04-08 10:19:27,118 INFO L272 TraceCheckUtils]: 4: Hoare triple {1579#true} call #t~ret9 := main(); {1579#true} is VALID [2022-04-08 10:19:27,118 INFO L290 TraceCheckUtils]: 5: Hoare triple {1579#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {1579#true} is VALID [2022-04-08 10:19:27,118 INFO L290 TraceCheckUtils]: 6: Hoare triple {1579#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {1579#true} is VALID [2022-04-08 10:19:27,118 INFO L290 TraceCheckUtils]: 7: Hoare triple {1579#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {1579#true} is VALID [2022-04-08 10:19:27,118 INFO L290 TraceCheckUtils]: 8: Hoare triple {1579#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {1579#true} is VALID [2022-04-08 10:19:27,119 INFO L290 TraceCheckUtils]: 9: Hoare triple {1579#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {1584#(= main_~v~0 0)} is VALID [2022-04-08 10:19:27,120 INFO L290 TraceCheckUtils]: 10: Hoare triple {1584#(= main_~v~0 0)} assume !!(~v~0 % 4294967296 < 10); {1584#(= main_~v~0 0)} is VALID [2022-04-08 10:19:27,121 INFO L290 TraceCheckUtils]: 11: Hoare triple {1584#(= main_~v~0 0)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1585#(and (<= main_~v~0 1) (<= 1 main_~v~0))} is VALID [2022-04-08 10:19:27,121 INFO L290 TraceCheckUtils]: 12: Hoare triple {1585#(and (<= main_~v~0 1) (<= 1 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {1585#(and (<= main_~v~0 1) (<= 1 main_~v~0))} is VALID [2022-04-08 10:19:27,127 INFO L290 TraceCheckUtils]: 13: Hoare triple {1585#(and (<= main_~v~0 1) (<= 1 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1586#(and (<= 2 main_~v~0) (<= main_~v~0 2))} is VALID [2022-04-08 10:19:27,128 INFO L290 TraceCheckUtils]: 14: Hoare triple {1586#(and (<= 2 main_~v~0) (<= main_~v~0 2))} assume !!(~v~0 % 4294967296 < 10); {1586#(and (<= 2 main_~v~0) (<= main_~v~0 2))} is VALID [2022-04-08 10:19:27,128 INFO L290 TraceCheckUtils]: 15: Hoare triple {1586#(and (<= 2 main_~v~0) (<= main_~v~0 2))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1587#(and (<= main_~v~0 3) (<= 3 main_~v~0))} is VALID [2022-04-08 10:19:27,128 INFO L290 TraceCheckUtils]: 16: Hoare triple {1587#(and (<= main_~v~0 3) (<= 3 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {1587#(and (<= main_~v~0 3) (<= 3 main_~v~0))} is VALID [2022-04-08 10:19:27,129 INFO L290 TraceCheckUtils]: 17: Hoare triple {1587#(and (<= main_~v~0 3) (<= 3 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1644#(and (<= main_~v~0 4) (<= 4 main_~v~0))} is VALID [2022-04-08 10:19:27,129 INFO L290 TraceCheckUtils]: 18: Hoare triple {1644#(and (<= main_~v~0 4) (<= 4 main_~v~0))} assume !(~v~0 % 4294967296 < 10); {1580#false} is VALID [2022-04-08 10:19:27,129 INFO L272 TraceCheckUtils]: 19: Hoare triple {1580#false} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {1580#false} is VALID [2022-04-08 10:19:27,130 INFO L290 TraceCheckUtils]: 20: Hoare triple {1580#false} ~cond := #in~cond; {1580#false} is VALID [2022-04-08 10:19:27,130 INFO L290 TraceCheckUtils]: 21: Hoare triple {1580#false} assume 0 == ~cond; {1580#false} is VALID [2022-04-08 10:19:27,130 INFO L290 TraceCheckUtils]: 22: Hoare triple {1580#false} assume !false; {1580#false} is VALID [2022-04-08 10:19:27,130 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 10:19:27,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 10:19:27,250 INFO L290 TraceCheckUtils]: 22: Hoare triple {1580#false} assume !false; {1580#false} is VALID [2022-04-08 10:19:27,251 INFO L290 TraceCheckUtils]: 21: Hoare triple {1580#false} assume 0 == ~cond; {1580#false} is VALID [2022-04-08 10:19:27,251 INFO L290 TraceCheckUtils]: 20: Hoare triple {1580#false} ~cond := #in~cond; {1580#false} is VALID [2022-04-08 10:19:27,251 INFO L272 TraceCheckUtils]: 19: Hoare triple {1580#false} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {1580#false} is VALID [2022-04-08 10:19:27,251 INFO L290 TraceCheckUtils]: 18: Hoare triple {1672#(< (mod main_~v~0 4294967296) 10)} assume !(~v~0 % 4294967296 < 10); {1580#false} is VALID [2022-04-08 10:19:27,252 INFO L290 TraceCheckUtils]: 17: Hoare triple {1676#(< (mod (+ main_~v~0 1) 4294967296) 10)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1672#(< (mod main_~v~0 4294967296) 10)} is VALID [2022-04-08 10:19:27,252 INFO L290 TraceCheckUtils]: 16: Hoare triple {1676#(< (mod (+ main_~v~0 1) 4294967296) 10)} assume !!(~v~0 % 4294967296 < 10); {1676#(< (mod (+ main_~v~0 1) 4294967296) 10)} is VALID [2022-04-08 10:19:27,253 INFO L290 TraceCheckUtils]: 15: Hoare triple {1683#(< (mod (+ main_~v~0 2) 4294967296) 10)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1676#(< (mod (+ main_~v~0 1) 4294967296) 10)} is VALID [2022-04-08 10:19:27,253 INFO L290 TraceCheckUtils]: 14: Hoare triple {1683#(< (mod (+ main_~v~0 2) 4294967296) 10)} assume !!(~v~0 % 4294967296 < 10); {1683#(< (mod (+ main_~v~0 2) 4294967296) 10)} is VALID [2022-04-08 10:19:27,254 INFO L290 TraceCheckUtils]: 13: Hoare triple {1690#(< (mod (+ main_~v~0 3) 4294967296) 10)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1683#(< (mod (+ main_~v~0 2) 4294967296) 10)} is VALID [2022-04-08 10:19:27,254 INFO L290 TraceCheckUtils]: 12: Hoare triple {1690#(< (mod (+ main_~v~0 3) 4294967296) 10)} assume !!(~v~0 % 4294967296 < 10); {1690#(< (mod (+ main_~v~0 3) 4294967296) 10)} is VALID [2022-04-08 10:19:27,255 INFO L290 TraceCheckUtils]: 11: Hoare triple {1697#(< (mod (+ main_~v~0 4) 4294967296) 10)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {1690#(< (mod (+ main_~v~0 3) 4294967296) 10)} is VALID [2022-04-08 10:19:27,255 INFO L290 TraceCheckUtils]: 10: Hoare triple {1697#(< (mod (+ main_~v~0 4) 4294967296) 10)} assume !!(~v~0 % 4294967296 < 10); {1697#(< (mod (+ main_~v~0 4) 4294967296) 10)} is VALID [2022-04-08 10:19:27,255 INFO L290 TraceCheckUtils]: 9: Hoare triple {1579#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {1697#(< (mod (+ main_~v~0 4) 4294967296) 10)} is VALID [2022-04-08 10:19:27,256 INFO L290 TraceCheckUtils]: 8: Hoare triple {1579#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {1579#true} is VALID [2022-04-08 10:19:27,256 INFO L290 TraceCheckUtils]: 7: Hoare triple {1579#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {1579#true} is VALID [2022-04-08 10:19:27,256 INFO L290 TraceCheckUtils]: 6: Hoare triple {1579#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {1579#true} is VALID [2022-04-08 10:19:27,256 INFO L290 TraceCheckUtils]: 5: Hoare triple {1579#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {1579#true} is VALID [2022-04-08 10:19:27,256 INFO L272 TraceCheckUtils]: 4: Hoare triple {1579#true} call #t~ret9 := main(); {1579#true} is VALID [2022-04-08 10:19:27,256 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1579#true} {1579#true} #85#return; {1579#true} is VALID [2022-04-08 10:19:27,256 INFO L290 TraceCheckUtils]: 2: Hoare triple {1579#true} assume true; {1579#true} is VALID [2022-04-08 10:19:27,256 INFO L290 TraceCheckUtils]: 1: Hoare triple {1579#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(12, 2);call #Ultimate.allocInit(12, 3); {1579#true} is VALID [2022-04-08 10:19:27,256 INFO L272 TraceCheckUtils]: 0: Hoare triple {1579#true} call ULTIMATE.init(); {1579#true} is VALID [2022-04-08 10:19:27,256 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 10:19:27,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139910853] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 10:19:27,257 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-08 10:19:27,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2022-04-08 10:19:27,257 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 10:19:27,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1811310754] [2022-04-08 10:19:27,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1811310754] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 10:19:27,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 10:19:27,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-08 10:19:27,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876440071] [2022-04-08 10:19:27,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 10:19:27,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 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 23 [2022-04-08 10:19:27,258 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 10:19:27,258 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-04-08 10:19:27,271 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 10:19:27,271 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-08 10:19:27,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 10:19:27,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-08 10:19:27,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-04-08 10:19:27,272 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-04-08 10:19:27,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:27,498 INFO L93 Difference]: Finished difference Result 64 states and 76 transitions. [2022-04-08 10:19:27,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-08 10:19:27,499 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 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 23 [2022-04-08 10:19:27,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 10:19:27,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-04-08 10:19:27,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 69 transitions. [2022-04-08 10:19:27,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-04-08 10:19:27,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 69 transitions. [2022-04-08 10:19:27,501 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 8 states and 69 transitions. [2022-04-08 10:19:27,546 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 10:19:27,547 INFO L225 Difference]: With dead ends: 64 [2022-04-08 10:19:27,547 INFO L226 Difference]: Without dead ends: 40 [2022-04-08 10:19:27,548 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-04-08 10:19:27,548 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 49 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 10:19:27,548 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 46 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 10:19:27,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-04-08 10:19:27,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 32. [2022-04-08 10:19:27,566 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 10:19:27,566 INFO L82 GeneralOperation]: Start isEquivalent. First operand 40 states. Second operand has 32 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:27,566 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand has 32 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:27,566 INFO L87 Difference]: Start difference. First operand 40 states. Second operand has 32 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:27,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:27,567 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2022-04-08 10:19:27,568 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2022-04-08 10:19:27,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:27,568 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 10:19:27,568 INFO L74 IsIncluded]: Start isIncluded. First operand has 32 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 40 states. [2022-04-08 10:19:27,568 INFO L87 Difference]: Start difference. First operand has 32 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 40 states. [2022-04-08 10:19:27,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:27,570 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2022-04-08 10:19:27,570 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2022-04-08 10:19:27,570 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:27,570 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 10:19:27,570 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 10:19:27,570 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 10:19:27,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:27,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2022-04-08 10:19:27,571 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 23 [2022-04-08 10:19:27,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 10:19:27,572 INFO L478 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2022-04-08 10:19:27,572 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-04-08 10:19:27,572 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 32 states and 36 transitions. [2022-04-08 10:19:27,608 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 10:19:27,608 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2022-04-08 10:19:27,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-04-08 10:19:27,608 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 10:19:27,608 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 10:19:27,626 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 10:19:27,809 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 10:19:27,809 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 10:19:27,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 10:19:27,809 INFO L85 PathProgramCache]: Analyzing trace with hash -2006417516, now seen corresponding path program 9 times [2022-04-08 10:19:27,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 10:19:27,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2053017739] [2022-04-08 10:19:27,812 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-08 10:19:27,813 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-08 10:19:27,813 INFO L85 PathProgramCache]: Analyzing trace with hash -2006417516, now seen corresponding path program 10 times [2022-04-08 10:19:27,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 10:19:27,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480928848] [2022-04-08 10:19:27,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 10:19:27,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 10:19:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:27,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 10:19:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:27,916 INFO L290 TraceCheckUtils]: 0: Hoare triple {2027#(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(12, 2);call #Ultimate.allocInit(12, 3); {2016#true} is VALID [2022-04-08 10:19:27,917 INFO L290 TraceCheckUtils]: 1: Hoare triple {2016#true} assume true; {2016#true} is VALID [2022-04-08 10:19:27,917 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {2016#true} {2016#true} #85#return; {2016#true} is VALID [2022-04-08 10:19:27,917 INFO L272 TraceCheckUtils]: 0: Hoare triple {2016#true} call ULTIMATE.init(); {2027#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 10:19:27,917 INFO L290 TraceCheckUtils]: 1: Hoare triple {2027#(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(12, 2);call #Ultimate.allocInit(12, 3); {2016#true} is VALID [2022-04-08 10:19:27,917 INFO L290 TraceCheckUtils]: 2: Hoare triple {2016#true} assume true; {2016#true} is VALID [2022-04-08 10:19:27,918 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2016#true} {2016#true} #85#return; {2016#true} is VALID [2022-04-08 10:19:27,918 INFO L272 TraceCheckUtils]: 4: Hoare triple {2016#true} call #t~ret9 := main(); {2016#true} is VALID [2022-04-08 10:19:27,918 INFO L290 TraceCheckUtils]: 5: Hoare triple {2016#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {2016#true} is VALID [2022-04-08 10:19:27,918 INFO L290 TraceCheckUtils]: 6: Hoare triple {2016#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {2016#true} is VALID [2022-04-08 10:19:27,918 INFO L290 TraceCheckUtils]: 7: Hoare triple {2016#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {2016#true} is VALID [2022-04-08 10:19:27,918 INFO L290 TraceCheckUtils]: 8: Hoare triple {2016#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {2016#true} is VALID [2022-04-08 10:19:27,918 INFO L290 TraceCheckUtils]: 9: Hoare triple {2016#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {2021#(= main_~v~0 0)} is VALID [2022-04-08 10:19:27,919 INFO L290 TraceCheckUtils]: 10: Hoare triple {2021#(= main_~v~0 0)} assume !!(~v~0 % 4294967296 < 10); {2021#(= main_~v~0 0)} is VALID [2022-04-08 10:19:27,919 INFO L290 TraceCheckUtils]: 11: Hoare triple {2021#(= main_~v~0 0)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2022#(and (<= main_~v~0 1) (<= 1 main_~v~0))} is VALID [2022-04-08 10:19:27,920 INFO L290 TraceCheckUtils]: 12: Hoare triple {2022#(and (<= main_~v~0 1) (<= 1 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {2022#(and (<= main_~v~0 1) (<= 1 main_~v~0))} is VALID [2022-04-08 10:19:27,920 INFO L290 TraceCheckUtils]: 13: Hoare triple {2022#(and (<= main_~v~0 1) (<= 1 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2023#(and (<= 2 main_~v~0) (<= main_~v~0 2))} is VALID [2022-04-08 10:19:27,921 INFO L290 TraceCheckUtils]: 14: Hoare triple {2023#(and (<= 2 main_~v~0) (<= main_~v~0 2))} assume !!(~v~0 % 4294967296 < 10); {2023#(and (<= 2 main_~v~0) (<= main_~v~0 2))} is VALID [2022-04-08 10:19:27,921 INFO L290 TraceCheckUtils]: 15: Hoare triple {2023#(and (<= 2 main_~v~0) (<= main_~v~0 2))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2024#(and (<= main_~v~0 3) (<= 3 main_~v~0))} is VALID [2022-04-08 10:19:27,922 INFO L290 TraceCheckUtils]: 16: Hoare triple {2024#(and (<= main_~v~0 3) (<= 3 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {2024#(and (<= main_~v~0 3) (<= 3 main_~v~0))} is VALID [2022-04-08 10:19:27,922 INFO L290 TraceCheckUtils]: 17: Hoare triple {2024#(and (<= main_~v~0 3) (<= 3 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2025#(and (<= main_~v~0 4) (<= 4 main_~v~0))} is VALID [2022-04-08 10:19:27,922 INFO L290 TraceCheckUtils]: 18: Hoare triple {2025#(and (<= main_~v~0 4) (<= 4 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {2025#(and (<= main_~v~0 4) (<= 4 main_~v~0))} is VALID [2022-04-08 10:19:27,923 INFO L290 TraceCheckUtils]: 19: Hoare triple {2025#(and (<= main_~v~0 4) (<= 4 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2026#(and (not (<= (+ (div main_~v~0 4294967296) 1) 0)) (<= main_~v~0 5))} is VALID [2022-04-08 10:19:27,924 INFO L290 TraceCheckUtils]: 20: Hoare triple {2026#(and (not (<= (+ (div main_~v~0 4294967296) 1) 0)) (<= main_~v~0 5))} assume !(~v~0 % 4294967296 < 10); {2017#false} is VALID [2022-04-08 10:19:27,924 INFO L272 TraceCheckUtils]: 21: Hoare triple {2017#false} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {2017#false} is VALID [2022-04-08 10:19:27,924 INFO L290 TraceCheckUtils]: 22: Hoare triple {2017#false} ~cond := #in~cond; {2017#false} is VALID [2022-04-08 10:19:27,924 INFO L290 TraceCheckUtils]: 23: Hoare triple {2017#false} assume 0 == ~cond; {2017#false} is VALID [2022-04-08 10:19:27,924 INFO L290 TraceCheckUtils]: 24: Hoare triple {2017#false} assume !false; {2017#false} is VALID [2022-04-08 10:19:27,924 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 10:19:27,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 10:19:27,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480928848] [2022-04-08 10:19:27,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480928848] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-08 10:19:27,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247937866] [2022-04-08 10:19:27,925 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-08 10:19:27,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 10:19:27,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 10:19:27,939 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 10:19:27,944 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 10:19:27,978 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-08 10:19:27,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 10:19:27,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-08 10:19:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:27,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 10:19:28,431 INFO L272 TraceCheckUtils]: 0: Hoare triple {2016#true} call ULTIMATE.init(); {2016#true} is VALID [2022-04-08 10:19:28,431 INFO L290 TraceCheckUtils]: 1: Hoare triple {2016#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(12, 2);call #Ultimate.allocInit(12, 3); {2016#true} is VALID [2022-04-08 10:19:28,431 INFO L290 TraceCheckUtils]: 2: Hoare triple {2016#true} assume true; {2016#true} is VALID [2022-04-08 10:19:28,431 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2016#true} {2016#true} #85#return; {2016#true} is VALID [2022-04-08 10:19:28,431 INFO L272 TraceCheckUtils]: 4: Hoare triple {2016#true} call #t~ret9 := main(); {2016#true} is VALID [2022-04-08 10:19:28,431 INFO L290 TraceCheckUtils]: 5: Hoare triple {2016#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {2016#true} is VALID [2022-04-08 10:19:28,431 INFO L290 TraceCheckUtils]: 6: Hoare triple {2016#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {2016#true} is VALID [2022-04-08 10:19:28,431 INFO L290 TraceCheckUtils]: 7: Hoare triple {2016#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {2016#true} is VALID [2022-04-08 10:19:28,432 INFO L290 TraceCheckUtils]: 8: Hoare triple {2016#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {2016#true} is VALID [2022-04-08 10:19:28,432 INFO L290 TraceCheckUtils]: 9: Hoare triple {2016#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {2021#(= main_~v~0 0)} is VALID [2022-04-08 10:19:28,433 INFO L290 TraceCheckUtils]: 10: Hoare triple {2021#(= main_~v~0 0)} assume !!(~v~0 % 4294967296 < 10); {2021#(= main_~v~0 0)} is VALID [2022-04-08 10:19:28,433 INFO L290 TraceCheckUtils]: 11: Hoare triple {2021#(= main_~v~0 0)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2022#(and (<= main_~v~0 1) (<= 1 main_~v~0))} is VALID [2022-04-08 10:19:28,434 INFO L290 TraceCheckUtils]: 12: Hoare triple {2022#(and (<= main_~v~0 1) (<= 1 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {2022#(and (<= main_~v~0 1) (<= 1 main_~v~0))} is VALID [2022-04-08 10:19:28,434 INFO L290 TraceCheckUtils]: 13: Hoare triple {2022#(and (<= main_~v~0 1) (<= 1 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2023#(and (<= 2 main_~v~0) (<= main_~v~0 2))} is VALID [2022-04-08 10:19:28,436 INFO L290 TraceCheckUtils]: 14: Hoare triple {2023#(and (<= 2 main_~v~0) (<= main_~v~0 2))} assume !!(~v~0 % 4294967296 < 10); {2023#(and (<= 2 main_~v~0) (<= main_~v~0 2))} is VALID [2022-04-08 10:19:28,436 INFO L290 TraceCheckUtils]: 15: Hoare triple {2023#(and (<= 2 main_~v~0) (<= main_~v~0 2))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2024#(and (<= main_~v~0 3) (<= 3 main_~v~0))} is VALID [2022-04-08 10:19:28,437 INFO L290 TraceCheckUtils]: 16: Hoare triple {2024#(and (<= main_~v~0 3) (<= 3 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {2024#(and (<= main_~v~0 3) (<= 3 main_~v~0))} is VALID [2022-04-08 10:19:28,437 INFO L290 TraceCheckUtils]: 17: Hoare triple {2024#(and (<= main_~v~0 3) (<= 3 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2025#(and (<= main_~v~0 4) (<= 4 main_~v~0))} is VALID [2022-04-08 10:19:28,438 INFO L290 TraceCheckUtils]: 18: Hoare triple {2025#(and (<= main_~v~0 4) (<= 4 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {2025#(and (<= main_~v~0 4) (<= 4 main_~v~0))} is VALID [2022-04-08 10:19:28,438 INFO L290 TraceCheckUtils]: 19: Hoare triple {2025#(and (<= main_~v~0 4) (<= 4 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2088#(and (<= main_~v~0 5) (<= 5 main_~v~0))} is VALID [2022-04-08 10:19:28,441 INFO L290 TraceCheckUtils]: 20: Hoare triple {2088#(and (<= main_~v~0 5) (<= 5 main_~v~0))} assume !(~v~0 % 4294967296 < 10); {2088#(and (<= main_~v~0 5) (<= 5 main_~v~0))} is VALID [2022-04-08 10:19:28,442 INFO L272 TraceCheckUtils]: 21: Hoare triple {2088#(and (<= main_~v~0 5) (<= 5 main_~v~0))} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {2095#(<= (div (+ |__VERIFIER_assert_#in~cond| (- 5)) (- 4)) 1)} is VALID [2022-04-08 10:19:28,442 INFO L290 TraceCheckUtils]: 22: Hoare triple {2095#(<= (div (+ |__VERIFIER_assert_#in~cond| (- 5)) (- 4)) 1)} ~cond := #in~cond; {2099#(<= (div (+ (- 5) __VERIFIER_assert_~cond) (- 4)) 1)} is VALID [2022-04-08 10:19:28,443 INFO L290 TraceCheckUtils]: 23: Hoare triple {2099#(<= (div (+ (- 5) __VERIFIER_assert_~cond) (- 4)) 1)} assume 0 == ~cond; {2017#false} is VALID [2022-04-08 10:19:28,443 INFO L290 TraceCheckUtils]: 24: Hoare triple {2017#false} assume !false; {2017#false} is VALID [2022-04-08 10:19:28,443 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 10:19:28,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 10:19:28,847 INFO L290 TraceCheckUtils]: 24: Hoare triple {2017#false} assume !false; {2017#false} is VALID [2022-04-08 10:19:28,848 INFO L290 TraceCheckUtils]: 23: Hoare triple {2099#(<= (div (+ (- 5) __VERIFIER_assert_~cond) (- 4)) 1)} assume 0 == ~cond; {2017#false} is VALID [2022-04-08 10:19:28,848 INFO L290 TraceCheckUtils]: 22: Hoare triple {2095#(<= (div (+ |__VERIFIER_assert_#in~cond| (- 5)) (- 4)) 1)} ~cond := #in~cond; {2099#(<= (div (+ (- 5) __VERIFIER_assert_~cond) (- 4)) 1)} is VALID [2022-04-08 10:19:28,849 INFO L272 TraceCheckUtils]: 21: Hoare triple {2115#(<= (div (+ (- 9) (mod main_~v~0 4)) (- 4)) 2)} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {2095#(<= (div (+ |__VERIFIER_assert_#in~cond| (- 5)) (- 4)) 1)} is VALID [2022-04-08 10:19:28,849 INFO L290 TraceCheckUtils]: 20: Hoare triple {2115#(<= (div (+ (- 9) (mod main_~v~0 4)) (- 4)) 2)} assume !(~v~0 % 4294967296 < 10); {2115#(<= (div (+ (- 9) (mod main_~v~0 4)) (- 4)) 2)} is VALID [2022-04-08 10:19:28,850 INFO L290 TraceCheckUtils]: 19: Hoare triple {2122#(<= (div (+ (- 9) (mod (+ main_~v~0 1) 4)) (- 4)) 2)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2115#(<= (div (+ (- 9) (mod main_~v~0 4)) (- 4)) 2)} is VALID [2022-04-08 10:19:28,850 INFO L290 TraceCheckUtils]: 18: Hoare triple {2122#(<= (div (+ (- 9) (mod (+ main_~v~0 1) 4)) (- 4)) 2)} assume !!(~v~0 % 4294967296 < 10); {2122#(<= (div (+ (- 9) (mod (+ main_~v~0 1) 4)) (- 4)) 2)} is VALID [2022-04-08 10:19:28,851 INFO L290 TraceCheckUtils]: 17: Hoare triple {2129#(<= (div (+ (- 9) (mod (+ main_~v~0 2) 4)) (- 4)) 2)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2122#(<= (div (+ (- 9) (mod (+ main_~v~0 1) 4)) (- 4)) 2)} is VALID [2022-04-08 10:19:28,852 INFO L290 TraceCheckUtils]: 16: Hoare triple {2129#(<= (div (+ (- 9) (mod (+ main_~v~0 2) 4)) (- 4)) 2)} assume !!(~v~0 % 4294967296 < 10); {2129#(<= (div (+ (- 9) (mod (+ main_~v~0 2) 4)) (- 4)) 2)} is VALID [2022-04-08 10:19:28,852 INFO L290 TraceCheckUtils]: 15: Hoare triple {2136#(<= (div (+ (- 9) (mod (+ main_~v~0 3) 4)) (- 4)) 2)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2129#(<= (div (+ (- 9) (mod (+ main_~v~0 2) 4)) (- 4)) 2)} is VALID [2022-04-08 10:19:28,853 INFO L290 TraceCheckUtils]: 14: Hoare triple {2136#(<= (div (+ (- 9) (mod (+ main_~v~0 3) 4)) (- 4)) 2)} assume !!(~v~0 % 4294967296 < 10); {2136#(<= (div (+ (- 9) (mod (+ main_~v~0 3) 4)) (- 4)) 2)} is VALID [2022-04-08 10:19:28,853 INFO L290 TraceCheckUtils]: 13: Hoare triple {2115#(<= (div (+ (- 9) (mod main_~v~0 4)) (- 4)) 2)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2136#(<= (div (+ (- 9) (mod (+ main_~v~0 3) 4)) (- 4)) 2)} is VALID [2022-04-08 10:19:28,854 INFO L290 TraceCheckUtils]: 12: Hoare triple {2115#(<= (div (+ (- 9) (mod main_~v~0 4)) (- 4)) 2)} assume !!(~v~0 % 4294967296 < 10); {2115#(<= (div (+ (- 9) (mod main_~v~0 4)) (- 4)) 2)} is VALID [2022-04-08 10:19:28,854 INFO L290 TraceCheckUtils]: 11: Hoare triple {2122#(<= (div (+ (- 9) (mod (+ main_~v~0 1) 4)) (- 4)) 2)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2115#(<= (div (+ (- 9) (mod main_~v~0 4)) (- 4)) 2)} is VALID [2022-04-08 10:19:28,855 INFO L290 TraceCheckUtils]: 10: Hoare triple {2122#(<= (div (+ (- 9) (mod (+ main_~v~0 1) 4)) (- 4)) 2)} assume !!(~v~0 % 4294967296 < 10); {2122#(<= (div (+ (- 9) (mod (+ main_~v~0 1) 4)) (- 4)) 2)} is VALID [2022-04-08 10:19:28,855 INFO L290 TraceCheckUtils]: 9: Hoare triple {2016#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {2122#(<= (div (+ (- 9) (mod (+ main_~v~0 1) 4)) (- 4)) 2)} is VALID [2022-04-08 10:19:28,855 INFO L290 TraceCheckUtils]: 8: Hoare triple {2016#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {2016#true} is VALID [2022-04-08 10:19:28,855 INFO L290 TraceCheckUtils]: 7: Hoare triple {2016#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {2016#true} is VALID [2022-04-08 10:19:28,855 INFO L290 TraceCheckUtils]: 6: Hoare triple {2016#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {2016#true} is VALID [2022-04-08 10:19:28,855 INFO L290 TraceCheckUtils]: 5: Hoare triple {2016#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {2016#true} is VALID [2022-04-08 10:19:28,856 INFO L272 TraceCheckUtils]: 4: Hoare triple {2016#true} call #t~ret9 := main(); {2016#true} is VALID [2022-04-08 10:19:28,856 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2016#true} {2016#true} #85#return; {2016#true} is VALID [2022-04-08 10:19:28,856 INFO L290 TraceCheckUtils]: 2: Hoare triple {2016#true} assume true; {2016#true} is VALID [2022-04-08 10:19:28,856 INFO L290 TraceCheckUtils]: 1: Hoare triple {2016#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(12, 2);call #Ultimate.allocInit(12, 3); {2016#true} is VALID [2022-04-08 10:19:28,856 INFO L272 TraceCheckUtils]: 0: Hoare triple {2016#true} call ULTIMATE.init(); {2016#true} is VALID [2022-04-08 10:19:28,856 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-08 10:19:28,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247937866] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 10:19:28,856 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-08 10:19:28,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 8] total 16 [2022-04-08 10:19:28,857 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 10:19:28,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2053017739] [2022-04-08 10:19:28,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2053017739] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 10:19:28,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 10:19:28,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-08 10:19:28,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570530794] [2022-04-08 10:19:28,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 10:19:28,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 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 25 [2022-04-08 10:19:28,858 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 10:19:28,858 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 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) [2022-04-08 10:19:28,877 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 10:19:28,877 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-08 10:19:28,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 10:19:28,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-08 10:19:28,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-04-08 10:19:28,878 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 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) [2022-04-08 10:19:29,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:29,203 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2022-04-08 10:19:29,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-08 10:19:29,203 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 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 25 [2022-04-08 10:19:29,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 10:19:29,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 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) [2022-04-08 10:19:29,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 71 transitions. [2022-04-08 10:19:29,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 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) [2022-04-08 10:19:29,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 71 transitions. [2022-04-08 10:19:29,205 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 9 states and 71 transitions. [2022-04-08 10:19:29,255 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 10:19:29,256 INFO L225 Difference]: With dead ends: 68 [2022-04-08 10:19:29,256 INFO L226 Difference]: Without dead ends: 42 [2022-04-08 10:19:29,256 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2022-04-08 10:19:29,257 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 60 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 10:19:29,257 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 41 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 10:19:29,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-04-08 10:19:29,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2022-04-08 10:19:29,277 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 10:19:29,277 INFO L82 GeneralOperation]: Start isEquivalent. First operand 42 states. Second operand has 34 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:29,277 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand has 34 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:29,278 INFO L87 Difference]: Start difference. First operand 42 states. Second operand has 34 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:29,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:29,278 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2022-04-08 10:19:29,279 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-04-08 10:19:29,279 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:29,279 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 10:19:29,279 INFO L74 IsIncluded]: Start isIncluded. First operand has 34 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 42 states. [2022-04-08 10:19:29,279 INFO L87 Difference]: Start difference. First operand has 34 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 42 states. [2022-04-08 10:19:29,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:29,280 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2022-04-08 10:19:29,280 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-04-08 10:19:29,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:29,280 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 10:19:29,280 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 10:19:29,280 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 10:19:29,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 10:19:29,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2022-04-08 10:19:29,281 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 25 [2022-04-08 10:19:29,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 10:19:29,281 INFO L478 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2022-04-08 10:19:29,281 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 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) [2022-04-08 10:19:29,281 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 34 states and 38 transitions. [2022-04-08 10:19:29,314 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 10:19:29,314 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-04-08 10:19:29,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-04-08 10:19:29,314 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 10:19:29,314 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 10:19:29,332 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 10:19:29,527 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 10:19:29,527 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 10:19:29,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 10:19:29,528 INFO L85 PathProgramCache]: Analyzing trace with hash 906050034, now seen corresponding path program 11 times [2022-04-08 10:19:29,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 10:19:29,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1947534613] [2022-04-08 10:19:29,531 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-08 10:19:29,531 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-08 10:19:29,531 INFO L85 PathProgramCache]: Analyzing trace with hash 906050034, now seen corresponding path program 12 times [2022-04-08 10:19:29,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 10:19:29,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003345422] [2022-04-08 10:19:29,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 10:19:29,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 10:19:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:29,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 10:19:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:29,646 INFO L290 TraceCheckUtils]: 0: Hoare triple {2497#(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(12, 2);call #Ultimate.allocInit(12, 3); {2485#true} is VALID [2022-04-08 10:19:29,646 INFO L290 TraceCheckUtils]: 1: Hoare triple {2485#true} assume true; {2485#true} is VALID [2022-04-08 10:19:29,646 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {2485#true} {2485#true} #85#return; {2485#true} is VALID [2022-04-08 10:19:29,647 INFO L272 TraceCheckUtils]: 0: Hoare triple {2485#true} call ULTIMATE.init(); {2497#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 10:19:29,647 INFO L290 TraceCheckUtils]: 1: Hoare triple {2497#(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(12, 2);call #Ultimate.allocInit(12, 3); {2485#true} is VALID [2022-04-08 10:19:29,647 INFO L290 TraceCheckUtils]: 2: Hoare triple {2485#true} assume true; {2485#true} is VALID [2022-04-08 10:19:29,647 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2485#true} {2485#true} #85#return; {2485#true} is VALID [2022-04-08 10:19:29,647 INFO L272 TraceCheckUtils]: 4: Hoare triple {2485#true} call #t~ret9 := main(); {2485#true} is VALID [2022-04-08 10:19:29,647 INFO L290 TraceCheckUtils]: 5: Hoare triple {2485#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {2485#true} is VALID [2022-04-08 10:19:29,647 INFO L290 TraceCheckUtils]: 6: Hoare triple {2485#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {2485#true} is VALID [2022-04-08 10:19:29,647 INFO L290 TraceCheckUtils]: 7: Hoare triple {2485#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {2485#true} is VALID [2022-04-08 10:19:29,649 INFO L290 TraceCheckUtils]: 8: Hoare triple {2485#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {2485#true} is VALID [2022-04-08 10:19:29,652 INFO L290 TraceCheckUtils]: 9: Hoare triple {2485#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {2490#(= main_~v~0 0)} is VALID [2022-04-08 10:19:29,654 INFO L290 TraceCheckUtils]: 10: Hoare triple {2490#(= main_~v~0 0)} assume !!(~v~0 % 4294967296 < 10); {2490#(= main_~v~0 0)} is VALID [2022-04-08 10:19:29,654 INFO L290 TraceCheckUtils]: 11: Hoare triple {2490#(= main_~v~0 0)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2491#(and (<= main_~v~0 1) (<= 1 main_~v~0))} is VALID [2022-04-08 10:19:29,655 INFO L290 TraceCheckUtils]: 12: Hoare triple {2491#(and (<= main_~v~0 1) (<= 1 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {2491#(and (<= main_~v~0 1) (<= 1 main_~v~0))} is VALID [2022-04-08 10:19:29,655 INFO L290 TraceCheckUtils]: 13: Hoare triple {2491#(and (<= main_~v~0 1) (<= 1 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2492#(and (<= 2 main_~v~0) (<= main_~v~0 2))} is VALID [2022-04-08 10:19:29,656 INFO L290 TraceCheckUtils]: 14: Hoare triple {2492#(and (<= 2 main_~v~0) (<= main_~v~0 2))} assume !!(~v~0 % 4294967296 < 10); {2492#(and (<= 2 main_~v~0) (<= main_~v~0 2))} is VALID [2022-04-08 10:19:29,656 INFO L290 TraceCheckUtils]: 15: Hoare triple {2492#(and (<= 2 main_~v~0) (<= main_~v~0 2))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2493#(and (<= main_~v~0 3) (<= 3 main_~v~0))} is VALID [2022-04-08 10:19:29,656 INFO L290 TraceCheckUtils]: 16: Hoare triple {2493#(and (<= main_~v~0 3) (<= 3 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {2493#(and (<= main_~v~0 3) (<= 3 main_~v~0))} is VALID [2022-04-08 10:19:29,657 INFO L290 TraceCheckUtils]: 17: Hoare triple {2493#(and (<= main_~v~0 3) (<= 3 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2494#(and (<= main_~v~0 4) (<= 4 main_~v~0))} is VALID [2022-04-08 10:19:29,657 INFO L290 TraceCheckUtils]: 18: Hoare triple {2494#(and (<= main_~v~0 4) (<= 4 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {2494#(and (<= main_~v~0 4) (<= 4 main_~v~0))} is VALID [2022-04-08 10:19:29,657 INFO L290 TraceCheckUtils]: 19: Hoare triple {2494#(and (<= main_~v~0 4) (<= 4 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2495#(and (<= main_~v~0 5) (<= 5 main_~v~0))} is VALID [2022-04-08 10:19:29,658 INFO L290 TraceCheckUtils]: 20: Hoare triple {2495#(and (<= main_~v~0 5) (<= 5 main_~v~0))} assume !!(~v~0 % 4294967296 < 10); {2495#(and (<= main_~v~0 5) (<= 5 main_~v~0))} is VALID [2022-04-08 10:19:29,658 INFO L290 TraceCheckUtils]: 21: Hoare triple {2495#(and (<= main_~v~0 5) (<= 5 main_~v~0))} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2496#(and (not (<= (+ (div main_~v~0 4294967296) 1) 0)) (<= main_~v~0 6))} is VALID [2022-04-08 10:19:29,659 INFO L290 TraceCheckUtils]: 22: Hoare triple {2496#(and (not (<= (+ (div main_~v~0 4294967296) 1) 0)) (<= main_~v~0 6))} assume !(~v~0 % 4294967296 < 10); {2486#false} is VALID [2022-04-08 10:19:29,659 INFO L272 TraceCheckUtils]: 23: Hoare triple {2486#false} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {2486#false} is VALID [2022-04-08 10:19:29,659 INFO L290 TraceCheckUtils]: 24: Hoare triple {2486#false} ~cond := #in~cond; {2486#false} is VALID [2022-04-08 10:19:29,659 INFO L290 TraceCheckUtils]: 25: Hoare triple {2486#false} assume 0 == ~cond; {2486#false} is VALID [2022-04-08 10:19:29,659 INFO L290 TraceCheckUtils]: 26: Hoare triple {2486#false} assume !false; {2486#false} is VALID [2022-04-08 10:19:29,659 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 10:19:29,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 10:19:29,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003345422] [2022-04-08 10:19:29,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003345422] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-08 10:19:29,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036478307] [2022-04-08 10:19:29,660 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-08 10:19:29,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 10:19:29,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 10:19:29,660 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 10:19:29,661 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 10:19:29,711 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-04-08 10:19:29,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 10:19:29,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-04-08 10:19:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 10:19:29,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 10:19:30,149 INFO L272 TraceCheckUtils]: 0: Hoare triple {2485#true} call ULTIMATE.init(); {2485#true} is VALID [2022-04-08 10:19:30,149 INFO L290 TraceCheckUtils]: 1: Hoare triple {2485#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(12, 2);call #Ultimate.allocInit(12, 3); {2485#true} is VALID [2022-04-08 10:19:30,150 INFO L290 TraceCheckUtils]: 2: Hoare triple {2485#true} assume true; {2485#true} is VALID [2022-04-08 10:19:30,150 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2485#true} {2485#true} #85#return; {2485#true} is VALID [2022-04-08 10:19:30,150 INFO L272 TraceCheckUtils]: 4: Hoare triple {2485#true} call #t~ret9 := main(); {2485#true} is VALID [2022-04-08 10:19:30,150 INFO L290 TraceCheckUtils]: 5: Hoare triple {2485#true} ~x~0 := 0;~y~0 := 0;~z~0 := 0;~w~0 := 0;~v~0 := 0;~w~0 := 0; {2485#true} is VALID [2022-04-08 10:19:30,150 INFO L290 TraceCheckUtils]: 6: Hoare triple {2485#true} assume !!(~w~0 % 4294967296 < 268435455);~x~0 := 0; {2485#true} is VALID [2022-04-08 10:19:30,150 INFO L290 TraceCheckUtils]: 7: Hoare triple {2485#true} assume !!(~x~0 % 4294967296 < 10);~y~0 := 0; {2485#true} is VALID [2022-04-08 10:19:30,150 INFO L290 TraceCheckUtils]: 8: Hoare triple {2485#true} assume !!(~y~0 % 4294967296 < 10);~z~0 := 0; {2485#true} is VALID [2022-04-08 10:19:30,150 INFO L290 TraceCheckUtils]: 9: Hoare triple {2485#true} assume !!(~z~0 % 4294967296 < 10);~v~0 := 0; {2485#true} is VALID [2022-04-08 10:19:30,150 INFO L290 TraceCheckUtils]: 10: Hoare triple {2485#true} assume !!(~v~0 % 4294967296 < 10); {2485#true} is VALID [2022-04-08 10:19:30,150 INFO L290 TraceCheckUtils]: 11: Hoare triple {2485#true} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2485#true} is VALID [2022-04-08 10:19:30,150 INFO L290 TraceCheckUtils]: 12: Hoare triple {2485#true} assume !!(~v~0 % 4294967296 < 10); {2485#true} is VALID [2022-04-08 10:19:30,150 INFO L290 TraceCheckUtils]: 13: Hoare triple {2485#true} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2485#true} is VALID [2022-04-08 10:19:30,150 INFO L290 TraceCheckUtils]: 14: Hoare triple {2485#true} assume !!(~v~0 % 4294967296 < 10); {2485#true} is VALID [2022-04-08 10:19:30,151 INFO L290 TraceCheckUtils]: 15: Hoare triple {2485#true} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2485#true} is VALID [2022-04-08 10:19:30,151 INFO L290 TraceCheckUtils]: 16: Hoare triple {2485#true} assume !!(~v~0 % 4294967296 < 10); {2485#true} is VALID [2022-04-08 10:19:30,151 INFO L290 TraceCheckUtils]: 17: Hoare triple {2485#true} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2485#true} is VALID [2022-04-08 10:19:30,151 INFO L290 TraceCheckUtils]: 18: Hoare triple {2485#true} assume !!(~v~0 % 4294967296 < 10); {2485#true} is VALID [2022-04-08 10:19:30,151 INFO L290 TraceCheckUtils]: 19: Hoare triple {2485#true} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2485#true} is VALID [2022-04-08 10:19:30,151 INFO L290 TraceCheckUtils]: 20: Hoare triple {2485#true} assume !!(~v~0 % 4294967296 < 10); {2561#(< (mod main_~v~0 4294967296) 10)} is VALID [2022-04-08 10:19:30,152 INFO L290 TraceCheckUtils]: 21: Hoare triple {2561#(< (mod main_~v~0 4294967296) 10)} #t~post8 := ~v~0;~v~0 := 1 + #t~post8;havoc #t~post8; {2565#(< (mod (+ main_~v~0 4294967295) 4294967296) 10)} is VALID [2022-04-08 10:19:30,152 INFO L290 TraceCheckUtils]: 22: Hoare triple {2565#(< (mod (+ main_~v~0 4294967295) 4294967296) 10)} assume !(~v~0 % 4294967296 < 10); {2569#(and (not (< (mod main_~v~0 4294967296) 10)) (< (mod (+ main_~v~0 4294967295) 4294967296) 10))} is VALID [2022-04-08 10:19:30,178 INFO L272 TraceCheckUtils]: 23: Hoare triple {2569#(and (not (< (mod main_~v~0 4294967296) 10)) (< (mod (+ main_~v~0 4294967295) 4294967296) 10))} call __VERIFIER_assert((if (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 <= 2147483647 then (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 else (if ~v~0 % 4294967296 < 0 && 0 != ~v~0 % 4294967296 % 4 then ~v~0 % 4294967296 % 4 - 4 else ~v~0 % 4294967296 % 4) % 4294967296 % 4294967296 - 4294967296)); {2573#(and (<= 0 |__VERIFIER_assert_#in~cond|) (< (div (+ (* (- 1) (div (+ |__VERIFIER_assert_#in~cond| (- 4294967306)) (- 4))) (div (+ (* (- 1) |__VERIFIER_assert_#in~cond|) 10) 4)) (- 1073741824)) (+ (div (+ (* (- 1) (div (+ (- 1) |__VERIFIER_assert_#in~cond|) (- 4))) (div (+ (* (- 1) |__VERIFIER_assert_#in~cond|) 8589934591) 4)) 1073741824) 1)) (< |__VERIFIER_assert_#in~cond| 4))} is VALID [2022-04-08 10:19:30,179 INFO L290 TraceCheckUtils]: 24: Hoare triple {2573#(and (<= 0 |__VERIFIER_assert_#in~cond|) (< (div (+ (* (- 1) (div (+ |__VERIFIER_assert_#in~cond| (- 4294967306)) (- 4))) (div (+ (* (- 1) |__VERIFIER_assert_#in~cond|) 10) 4)) (- 1073741824)) (+ (div (+ (* (- 1) (div (+ (- 1) |__VERIFIER_assert_#in~cond|) (- 4))) (div (+ (* (- 1) |__VERIFIER_assert_#in~cond|) 8589934591) 4)) 1073741824) 1)) (< |__VERIFIER_assert_#in~cond| 4))} ~cond := #in~cond; {2577#(and (< __VERIFIER_assert_~cond 4) (<= 0 __VERIFIER_assert_~cond) (< (div (+ (* (- 1) (div (+ (- 4294967306) __VERIFIER_assert_~cond) (- 4))) (div (+ 10 (* (- 1) __VERIFIER_assert_~cond)) 4)) (- 1073741824)) (+ (div (+ (* (- 1) (div (+ (- 1) __VERIFIER_assert_~cond) (- 4))) (div (+ 8589934591 (* (- 1) __VERIFIER_assert_~cond)) 4)) 1073741824) 1)))} is VALID [2022-04-08 10:19:30,180 INFO L290 TraceCheckUtils]: 25: Hoare triple {2577#(and (< __VERIFIER_assert_~cond 4) (<= 0 __VERIFIER_assert_~cond) (< (div (+ (* (- 1) (div (+ (- 4294967306) __VERIFIER_assert_~cond) (- 4))) (div (+ 10 (* (- 1) __VERIFIER_assert_~cond)) 4)) (- 1073741824)) (+ (div (+ (* (- 1) (div (+ (- 1) __VERIFIER_assert_~cond) (- 4))) (div (+ 8589934591 (* (- 1) __VERIFIER_assert_~cond)) 4)) 1073741824) 1)))} assume 0 == ~cond; {2486#false} is VALID [2022-04-08 10:19:30,180 INFO L290 TraceCheckUtils]: 26: Hoare triple {2486#false} assume !false; {2486#false} is VALID [2022-04-08 10:19:30,180 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-04-08 10:19:30,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-08 10:19:30,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036478307] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 10:19:30,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-08 10:19:30,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-04-08 10:19:30,180 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 10:19:30,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1947534613] [2022-04-08 10:19:30,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1947534613] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 10:19:30,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 10:19:30,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-08 10:19:30,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916025364] [2022-04-08 10:19:30,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 10:19:30,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 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 27 [2022-04-08 10:19:30,181 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 10:19:30,182 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-08 10:19:30,883 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 10:19:30,883 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-08 10:19:30,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 10:19:30,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-08 10:19:30,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-04-08 10:19:30,884 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-08 10:19:31,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:31,587 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2022-04-08 10:19:31,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-08 10:19:31,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 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 27 [2022-04-08 10:19:31,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 10:19:31,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-08 10:19:31,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 39 transitions. [2022-04-08 10:19:31,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-08 10:19:31,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 39 transitions. [2022-04-08 10:19:31,589 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 8 states and 39 transitions. [2022-04-08 10:19:31,690 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 10:19:31,690 INFO L225 Difference]: With dead ends: 41 [2022-04-08 10:19:31,690 INFO L226 Difference]: Without dead ends: 0 [2022-04-08 10:19:31,690 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-04-08 10:19:31,691 INFO L913 BasicCegarLoop]: 29 mSDtfsCounter, 26 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 10:19:31,691 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 129 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 10:19:31,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-08 10:19:31,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-08 10:19:31,691 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 10:19:31,692 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-08 10:19:31,692 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-08 10:19:31,692 INFO L87 Difference]: Start difference. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-08 10:19:31,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:31,692 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-08 10:19:31,692 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-08 10:19:31,692 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:31,692 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 10:19:31,692 INFO L74 IsIncluded]: Start isIncluded. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-08 10:19:31,692 INFO L87 Difference]: Start difference. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-08 10:19:31,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 10:19:31,692 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-08 10:19:31,692 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-08 10:19:31,692 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:31,692 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 10:19:31,692 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 10:19:31,693 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 10:19:31,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-08 10:19:31,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-08 10:19:31,693 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2022-04-08 10:19:31,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 10:19:31,693 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-08 10:19:31,693 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-08 10:19:31,693 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2022-04-08 10:19:31,693 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 10:19:31,693 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-08 10:19:31,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 10:19:31,695 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-08 10:19:31,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-08 10:19:31,899 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 10:19:31,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-08 10:19:32,829 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2022-04-08 10:19:32,829 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2022-04-08 10:19:32,829 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2022-04-08 10:19:32,830 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-04-08 10:19:32,830 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-08 10:19:32,830 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-04-08 10:19:32,830 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-04-08 10:19:32,830 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-08 10:19:32,830 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-08 10:19:32,830 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-04-08 10:19:32,830 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 12 27) the Hoare annotation is: true [2022-04-08 10:19:32,830 INFO L878 garLoopResultBuilder]: At program point L23-2(line 23) the Hoare annotation is: (or (= main_~v~0 0) (and (< (mod main_~v~0 4294967296) 10) (< (mod (+ main_~v~0 4294967295) 4294967296) 10))) [2022-04-08 10:19:32,830 INFO L878 garLoopResultBuilder]: At program point L23-3(line 23) the Hoare annotation is: (or (= main_~v~0 0) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2022-04-08 10:19:32,830 INFO L878 garLoopResultBuilder]: At program point L23-4(line 23) the Hoare annotation is: (and (not (< (mod main_~v~0 4294967296) 10)) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2022-04-08 10:19:32,830 INFO L878 garLoopResultBuilder]: At program point L19-2(lines 19 25) the Hoare annotation is: (or (< (mod main_~v~0 4294967296) 10) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2022-04-08 10:19:32,830 INFO L878 garLoopResultBuilder]: At program point L19-3(lines 19 25) the Hoare annotation is: (or (< (mod main_~v~0 4294967296) 10) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2022-04-08 10:19:32,830 INFO L885 garLoopResultBuilder]: At program point L19-4(lines 19 25) the Hoare annotation is: true [2022-04-08 10:19:32,831 INFO L878 garLoopResultBuilder]: At program point L24(lines 22 25) the Hoare annotation is: (and (not (< (mod main_~v~0 4294967296) 10)) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2022-04-08 10:19:32,831 INFO L878 garLoopResultBuilder]: At program point L20-2(lines 20 25) the Hoare annotation is: (or (< (mod main_~v~0 4294967296) 10) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2022-04-08 10:19:32,831 INFO L878 garLoopResultBuilder]: At program point L20-3(lines 20 25) the Hoare annotation is: (or (< (mod main_~v~0 4294967296) 10) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2022-04-08 10:19:32,831 INFO L878 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: (or (< (mod main_~v~0 4294967296) 10) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2022-04-08 10:19:32,831 INFO L878 garLoopResultBuilder]: At program point L21-3(lines 21 25) the Hoare annotation is: (or (< (mod main_~v~0 4294967296) 10) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2022-04-08 10:19:32,831 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 12 27) the Hoare annotation is: true [2022-04-08 10:19:32,831 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 12 27) the Hoare annotation is: true [2022-04-08 10:19:32,831 INFO L878 garLoopResultBuilder]: At program point L22-2(lines 22 25) the Hoare annotation is: (or (< (mod main_~v~0 4294967296) 10) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2022-04-08 10:19:32,831 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2022-04-08 10:19:32,831 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 5 10) the Hoare annotation is: (or (not (<= 0 |__VERIFIER_assert_#in~cond|)) (and (< __VERIFIER_assert_~cond 4) (<= 0 __VERIFIER_assert_~cond) (let ((.cse0 (* (- 1) __VERIFIER_assert_~cond))) (< (div (+ (* (- 1) (div (+ (- 4294967306) __VERIFIER_assert_~cond) (- 4))) (div (+ 10 .cse0) 4)) (- 1073741824)) (+ (div (+ (* (- 1) (div (+ (- 1) __VERIFIER_assert_~cond) (- 4))) (div (+ 8589934591 .cse0) 4)) 1073741824) 1)))) (not (let ((.cse1 (* (- 1) |__VERIFIER_assert_#in~cond|))) (< (div (+ (* (- 1) (div (+ |__VERIFIER_assert_#in~cond| (- 4294967306)) (- 4))) (div (+ .cse1 10) 4)) (- 1073741824)) (+ (div (+ (* (- 1) (div (+ (- 1) |__VERIFIER_assert_#in~cond|) (- 4))) (div (+ .cse1 8589934591) 4)) 1073741824) 1)))) (not (< |__VERIFIER_assert_#in~cond| 4))) [2022-04-08 10:19:32,831 INFO L878 garLoopResultBuilder]: At program point L7(line 7) the Hoare annotation is: (or (not (<= 0 |__VERIFIER_assert_#in~cond|)) (not (let ((.cse0 (* (- 1) |__VERIFIER_assert_#in~cond|))) (< (div (+ (* (- 1) (div (+ |__VERIFIER_assert_#in~cond| (- 4294967306)) (- 4))) (div (+ .cse0 10) 4)) (- 1073741824)) (+ (div (+ (* (- 1) (div (+ (- 1) |__VERIFIER_assert_#in~cond|) (- 4))) (div (+ .cse0 8589934591) 4)) 1073741824) 1)))) (not (< |__VERIFIER_assert_#in~cond| 4))) [2022-04-08 10:19:32,831 INFO L878 garLoopResultBuilder]: At program point L6(lines 6 8) the Hoare annotation is: (or (not (<= 0 |__VERIFIER_assert_#in~cond|)) (and (< __VERIFIER_assert_~cond 4) (<= 0 __VERIFIER_assert_~cond) (let ((.cse0 (* (- 1) __VERIFIER_assert_~cond))) (< (div (+ (* (- 1) (div (+ (- 4294967306) __VERIFIER_assert_~cond) (- 4))) (div (+ 10 .cse0) 4)) (- 1073741824)) (+ (div (+ (* (- 1) (div (+ (- 1) __VERIFIER_assert_~cond) (- 4))) (div (+ 8589934591 .cse0) 4)) 1073741824) 1)))) (not (let ((.cse1 (* (- 1) |__VERIFIER_assert_#in~cond|))) (< (div (+ (* (- 1) (div (+ |__VERIFIER_assert_#in~cond| (- 4294967306)) (- 4))) (div (+ .cse1 10) 4)) (- 1073741824)) (+ (div (+ (* (- 1) (div (+ (- 1) |__VERIFIER_assert_#in~cond|) (- 4))) (div (+ .cse1 8589934591) 4)) 1073741824) 1)))) (not (< |__VERIFIER_assert_#in~cond| 4))) [2022-04-08 10:19:32,832 INFO L878 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: (or (not (<= 0 |__VERIFIER_assert_#in~cond|)) (and (< __VERIFIER_assert_~cond 4) (<= 0 __VERIFIER_assert_~cond) (let ((.cse0 (* (- 1) __VERIFIER_assert_~cond))) (< (div (+ (* (- 1) (div (+ (- 4294967306) __VERIFIER_assert_~cond) (- 4))) (div (+ 10 .cse0) 4)) (- 1073741824)) (+ (div (+ (* (- 1) (div (+ (- 1) __VERIFIER_assert_~cond) (- 4))) (div (+ 8589934591 .cse0) 4)) 1073741824) 1)))) (not (let ((.cse1 (* (- 1) |__VERIFIER_assert_#in~cond|))) (< (div (+ (* (- 1) (div (+ |__VERIFIER_assert_#in~cond| (- 4294967306)) (- 4))) (div (+ .cse1 10) 4)) (- 1073741824)) (+ (div (+ (* (- 1) (div (+ (- 1) |__VERIFIER_assert_#in~cond|) (- 4))) (div (+ .cse1 8589934591) 4)) 1073741824) 1)))) (not (< |__VERIFIER_assert_#in~cond| 4))) [2022-04-08 10:19:32,832 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) the Hoare annotation is: (or (not (<= 0 |__VERIFIER_assert_#in~cond|)) (not (let ((.cse0 (* (- 1) |__VERIFIER_assert_#in~cond|))) (< (div (+ (* (- 1) (div (+ |__VERIFIER_assert_#in~cond| (- 4294967306)) (- 4))) (div (+ .cse0 10) 4)) (- 1073741824)) (+ (div (+ (* (- 1) (div (+ (- 1) |__VERIFIER_assert_#in~cond|) (- 4))) (div (+ .cse0 8589934591) 4)) 1073741824) 1)))) (not (< |__VERIFIER_assert_#in~cond| 4))) [2022-04-08 10:19:32,834 INFO L719 BasicCegarLoop]: Path program histogram: [12, 2, 2] [2022-04-08 10:19:32,834 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-08 10:19:32,837 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-08 10:19:32,845 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-08 10:19:32,866 INFO L163 areAnnotationChecker]: CFG has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-08 10:19:32,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.04 10:19:32 BoogieIcfgContainer [2022-04-08 10:19:32,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-08 10:19:32,881 INFO L158 Benchmark]: Toolchain (without parser) took 10876.19ms. Allocated memory was 174.1MB in the beginning and 282.1MB in the end (delta: 108.0MB). Free memory was 118.1MB in the beginning and 229.8MB in the end (delta: -111.7MB). Peak memory consumption was 110.1MB. Max. memory is 8.0GB. [2022-04-08 10:19:32,882 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 174.1MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-08 10:19:32,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.52ms. Allocated memory was 174.1MB in the beginning and 234.9MB in the end (delta: 60.8MB). Free memory was 117.9MB in the beginning and 206.9MB in the end (delta: -89.0MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-04-08 10:19:32,882 INFO L158 Benchmark]: Boogie Preprocessor took 24.36ms. Allocated memory is still 234.9MB. Free memory was 206.9MB in the beginning and 205.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-08 10:19:32,882 INFO L158 Benchmark]: RCFGBuilder took 256.55ms. Allocated memory is still 234.9MB. Free memory was 205.3MB in the beginning and 193.8MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-08 10:19:32,882 INFO L158 Benchmark]: TraceAbstraction took 10334.05ms. Allocated memory was 234.9MB in the beginning and 282.1MB in the end (delta: 47.2MB). Free memory was 193.3MB in the beginning and 229.8MB in the end (delta: -36.5MB). Peak memory consumption was 124.4MB. Max. memory is 8.0GB. [2022-04-08 10:19:32,883 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 0.11ms. Allocated memory is still 174.1MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 246.52ms. Allocated memory was 174.1MB in the beginning and 234.9MB in the end (delta: 60.8MB). Free memory was 117.9MB in the beginning and 206.9MB in the end (delta: -89.0MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.36ms. Allocated memory is still 234.9MB. Free memory was 206.9MB in the beginning and 205.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 256.55ms. Allocated memory is still 234.9MB. Free memory was 205.3MB in the beginning and 193.8MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 10334.05ms. Allocated memory was 234.9MB in the beginning and 282.1MB in the end (delta: 47.2MB). Free memory was 193.3MB in the beginning and 229.8MB in the end (delta: -36.5MB). Peak memory consumption was 124.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.3s, OverallIterations: 8, TraceHistogramMax: 6, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 360 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 352 mSDsluCounter, 389 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 185 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 498 IncrementalHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 204 mSDtfsCounter, 498 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 327 GetRequests, 226 SyntacticMatches, 5 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=7, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 48 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 70 PreInvPairs, 106 NumberOfFragments, 532 HoareAnnotationTreeSize, 70 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 28 FomulaSimplificationsInter, 463 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: v % 4294967296 < 10 || (v + 4294967295) % 4294967296 < 10 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: v % 4294967296 < 10 || (v + 4294967295) % 4294967296 < 10 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: v % 4294967296 < 10 || (v + 4294967295) % 4294967296 < 10 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: v == 0 || (v + 4294967295) % 4294967296 < 10 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: v % 4294967296 < 10 || (v + 4294967295) % 4294967296 < 10 - ProcedureContractResult [Line: 12]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 5]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: ((!(0 <= \old(cond)) || ((cond < 4 && 0 <= cond) && (-1 * ((-4294967306 + cond) / -4) + (10 + -1 * cond) / 4) / -1073741824 < (-1 * ((-1 + cond) / -4) + (8589934591 + -1 * cond) / 4) / 1073741824 + 1)) || !((-1 * ((\old(cond) + -4294967306) / -4) + (-1 * \old(cond) + 10) / 4) / -1073741824 < (-1 * ((-1 + \old(cond)) / -4) + (-1 * \old(cond) + 8589934591) / 4) / 1073741824 + 1)) || !(\old(cond) < 4) RESULT: Ultimate proved your program to be correct! [2022-04-08 10:19:32,903 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...