/usr/bin/java -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/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/sumt6.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 13:27:14,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 13:27:14,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 13:27:14,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 13:27:14,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 13:27:14,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 13:27:14,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 13:27:14,554 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-03-20 13:27:14,563 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 13:27:14,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 13:27:14,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 13:27:14,565 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 13:27:14,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 13:27:14,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 13:27:14,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 13:27:14,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 13:27:14,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 13:27:14,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 13:27:14,566 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 13:27:14,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 13:27:14,567 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 13:27:14,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 13:27:14,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 13:27:14,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 13:27:14,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 13:27:14,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 13:27:14,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 13:27:14,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 13:27:14,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 13:27:14,567 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 13:27:14,567 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 13:27:14,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 13:27:14,568 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-20 13:27:14,568 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 13:27:14,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 13:27:14,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 13:27:14,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 13:27:14,762 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 13:27:14,762 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 13:27:14,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt6.c [2022-03-20 13:27:14,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c3a56e2b/0704c002f9ea4ed9ad9f654992bbcd6c/FLAG495b0d531 [2022-03-20 13:27:15,142 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 13:27:15,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt6.c [2022-03-20 13:27:15,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c3a56e2b/0704c002f9ea4ed9ad9f654992bbcd6c/FLAG495b0d531 [2022-03-20 13:27:15,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c3a56e2b/0704c002f9ea4ed9ad9f654992bbcd6c [2022-03-20 13:27:15,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 13:27:15,590 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 13:27:15,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 13:27:15,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 13:27:15,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 13:27:15,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:27:15" (1/1) ... [2022-03-20 13:27:15,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47aba2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:27:15, skipping insertion in model container [2022-03-20 13:27:15,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:27:15" (1/1) ... [2022-03-20 13:27:15,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 13:27:15,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 13:27:15,727 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/sumt6.c[403,416] [2022-03-20 13:27:15,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 13:27:15,748 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 13:27:15,755 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/sumt6.c[403,416] [2022-03-20 13:27:15,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 13:27:15,768 INFO L208 MainTranslator]: Completed translation [2022-03-20 13:27:15,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:27:15 WrapperNode [2022-03-20 13:27:15,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 13:27:15,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 13:27:15,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 13:27:15,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 13:27:15,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:27:15" (1/1) ... [2022-03-20 13:27:15,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:27:15" (1/1) ... [2022-03-20 13:27:15,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:27:15" (1/1) ... [2022-03-20 13:27:15,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:27:15" (1/1) ... [2022-03-20 13:27:15,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:27:15" (1/1) ... [2022-03-20 13:27:15,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:27:15" (1/1) ... [2022-03-20 13:27:15,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:27:15" (1/1) ... [2022-03-20 13:27:15,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 13:27:15,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 13:27:15,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 13:27:15,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 13:27:15,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:27:15" (1/1) ... [2022-03-20 13:27:15,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 13:27:15,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:27:15,815 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) [2022-03-20 13:27:15,827 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 [2022-03-20 13:27:15,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 13:27:15,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 13:27:15,857 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 13:27:15,857 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-20 13:27:15,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 13:27:15,857 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 13:27:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 13:27:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 13:27:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 13:27:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 13:27:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-20 13:27:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 13:27:15,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 13:27:15,858 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 13:27:15,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 13:27:15,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 13:27:15,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 13:27:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 13:27:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 13:27:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 13:27:15,902 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 13:27:15,904 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 13:27:22,555 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 13:27:22,559 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 13:27:22,559 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 13:27:22,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:27:22 BoogieIcfgContainer [2022-03-20 13:27:22,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 13:27:22,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 13:27:22,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 13:27:22,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 13:27:22,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 01:27:15" (1/3) ... [2022-03-20 13:27:22,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56bc14cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:27:22, skipping insertion in model container [2022-03-20 13:27:22,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:27:15" (2/3) ... [2022-03-20 13:27:22,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56bc14cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:27:22, skipping insertion in model container [2022-03-20 13:27:22,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:27:22" (3/3) ... [2022-03-20 13:27:22,570 INFO L111 eAbstractionObserver]: Analyzing ICFG sumt6.c [2022-03-20 13:27:22,577 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 13:27:22,577 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 13:27:22,610 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 13:27:22,615 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 [2022-03-20 13:27:22,615 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 13:27:22,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 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) [2022-03-20 13:27:22,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-20 13:27:22,630 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:27:22,630 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:27:22,631 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:27:22,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:27:22,636 INFO L85 PathProgramCache]: Analyzing trace with hash 503999003, now seen corresponding path program 1 times [2022-03-20 13:27:22,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:27:22,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [342341607] [2022-03-20 13:27:22,653 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:27:22,653 INFO L85 PathProgramCache]: Analyzing trace with hash 503999003, now seen corresponding path program 2 times [2022-03-20 13:27:22,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:27:22,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301853233] [2022-03-20 13:27:22,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:27:22,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:27:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:27:22,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:27:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:27:22,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:27:22,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:27:22,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301853233] [2022-03-20 13:27:22,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301853233] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:27:22,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:27:22,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-20 13:27:22,834 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:27:22,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [342341607] [2022-03-20 13:27:22,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [342341607] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:27:22,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:27:22,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-20 13:27:22,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642799070] [2022-03-20 13:27:22,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:27:22,842 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 13:27:22,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:27:22,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 13:27:22,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 13:27:22,870 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 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 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-03-20 13:27:22,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:27:22,927 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2022-03-20 13:27:22,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 13:27:22,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 12 [2022-03-20 13:27:22,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:27:22,938 INFO L225 Difference]: With dead ends: 38 [2022-03-20 13:27:22,938 INFO L226 Difference]: Without dead ends: 19 [2022-03-20 13:27:22,941 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 [2022-03-20 13:27:22,944 INFO L913 BasicCegarLoop]: 29 mSDtfsCounter, 23 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 13:27:22,946 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 32 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 13:27:22,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-03-20 13:27:22,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-03-20 13:27:22,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:27:22,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2022-03-20 13:27:22,985 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 12 [2022-03-20 13:27:22,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:27:22,985 INFO L478 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-03-20 13:27:22,986 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-03-20 13:27:22,986 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-03-20 13:27:22,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-20 13:27:22,987 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:27:22,987 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:27:22,987 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 13:27:22,987 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:27:22,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:27:22,988 INFO L85 PathProgramCache]: Analyzing trace with hash 475369852, now seen corresponding path program 1 times [2022-03-20 13:27:22,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:27:22,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1785121090] [2022-03-20 13:27:22,991 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:27:22,991 INFO L85 PathProgramCache]: Analyzing trace with hash 475369852, now seen corresponding path program 2 times [2022-03-20 13:27:22,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:27:22,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982979034] [2022-03-20 13:27:22,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:27:22,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:27:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:27:23,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:27:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:27:23,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:27:23,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:27:23,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982979034] [2022-03-20 13:27:23,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982979034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:27:23,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:27:23,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 13:27:23,326 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:27:23,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1785121090] [2022-03-20 13:27:23,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1785121090] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:27:23,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:27:23,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 13:27:23,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286888799] [2022-03-20 13:27:23,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:27:23,327 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 13:27:23,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:27:23,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 13:27:23,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 13:27:23,328 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-03-20 13:27:25,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:27:27,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:27:29,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:27:31,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:27:34,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:27:34,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:27:34,332 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2022-03-20 13:27:34,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 13:27:34,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 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 12 [2022-03-20 13:27:34,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:27:34,333 INFO L225 Difference]: With dead ends: 26 [2022-03-20 13:27:34,334 INFO L226 Difference]: Without dead ends: 21 [2022-03-20 13:27:34,334 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 13:27:34,335 INFO L913 BasicCegarLoop]: 18 mSDtfsCounter, 20 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-03-20 13:27:34,335 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 39 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 5 Unknown, 0 Unchecked, 10.9s Time] [2022-03-20 13:27:34,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-03-20 13:27:34,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2022-03-20 13:27:34,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:27:34,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2022-03-20 13:27:34,339 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 12 [2022-03-20 13:27:34,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:27:34,339 INFO L478 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2022-03-20 13:27:34,340 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-03-20 13:27:34,340 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2022-03-20 13:27:34,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-20 13:27:34,340 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:27:34,340 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:27:34,340 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 13:27:34,340 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:27:34,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:27:34,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1279795021, now seen corresponding path program 1 times [2022-03-20 13:27:34,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:27:34,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1967341726] [2022-03-20 13:29:52,367 WARN L232 SmtUtils]: Spent 2.30m on a formula simplification. DAG size of input: 94 DAG size of output: 85 (called from [L 564] de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.jordan.JordanLoopAcceleration.buildAccelerationFormula) [2022-03-20 13:29:52,374 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 13:29:52,376 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 13:29:52,377 INFO L85 PathProgramCache]: Analyzing trace with hash -748417914, now seen corresponding path program 1 times [2022-03-20 13:29:52,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:29:52,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570533801] [2022-03-20 13:29:52,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:29:52,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:29:52,397 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_1_42.0) (- 5)) 6)) 715827882) 0) [2022-03-20 13:29:52,398 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) 4294967296) 0) [2022-03-20 13:29:52,398 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_1_42.0)) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967296)) 6)) (- 1)) 0) [2022-03-20 13:29:52,398 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (* 4294967296 .aux_div_v_it_1_42.0) 1) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_1_42.0) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967295)) 6)) (- 1)) 0) [2022-03-20 13:29:52,398 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_v_it_1_42.0) (* (- 1) main_~l~0_5) 4294967295) 0) [2022-03-20 13:29:52,398 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967295)) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_1_42.0) (- 5)) 6)) (- 1)) 0) [2022-03-20 13:29:52,398 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_1_42.0)) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_1_42.0) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967295)) 6)) (- 1)) 0) [2022-03-20 13:29:52,398 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967295)) (- 6)) 0) [2022-03-20 13:29:52,398 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_1_42.0)) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_1_42.0) (- 5)) 6)) (- 1)) 0) [2022-03-20 13:29:52,399 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_1_42.0) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967295)) 6)) 715827882) 0) [2022-03-20 13:29:52,399 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_1_42.0)) (- 6)) 0) [2022-03-20 13:29:52,399 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) 5) 0) [2022-03-20 13:29:52,399 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967295)) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967296)) 6)) (- 1)) 0) [2022-03-20 13:29:52,399 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (* 4294967296 .aux_div_v_it_1_42.0) 1) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_1_42.0) (- 5)) 6)) (- 1)) 0) [2022-03-20 13:29:52,399 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_1_42.0) (* (- 1) main_~l~0_7) 1) 0)) [2022-03-20 13:29:52,399 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967296)) 6)) 715827882) 0) [2022-03-20 13:29:52,399 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (* 4294967296 .aux_div_v_it_1_42.0) 1) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967296)) 6)) (- 1)) 0) [2022-03-20 13:29:52,399 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (* 4294967296 .aux_div_v_it_1_42.0) 1) (- 6)) 0) [2022-03-20 13:29:52,399 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967295)) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_1_42.0) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967295)) 6)) (- 1)) 0) [2022-03-20 13:29:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:29:52,462 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_1_42.2) (- 5)) 6)) 715827882) 0) [2022-03-20 13:29:52,462 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) 4294967296) 0) [2022-03-20 13:29:52,463 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_1_42.2)) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967296)) 6)) (- 1)) 0) [2022-03-20 13:29:52,463 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (* 4294967296 .aux_div_v_it_1_42.2) 1) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_1_42.2) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967295)) 6)) (- 1)) 0) [2022-03-20 13:29:52,463 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_v_it_1_42.2) (* (- 1) main_~l~0_5) 4294967295) 0) [2022-03-20 13:29:52,463 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967295)) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_1_42.2) (- 5)) 6)) (- 1)) 0) [2022-03-20 13:29:52,463 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_1_42.2)) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_1_42.2) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967295)) 6)) (- 1)) 0) [2022-03-20 13:29:52,464 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967295)) (- 6)) 0) [2022-03-20 13:29:52,464 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_1_42.2)) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_1_42.2) (- 5)) 6)) (- 1)) 0) [2022-03-20 13:29:52,464 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_1_42.2) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967295)) 6)) 715827882) 0) [2022-03-20 13:29:52,464 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_1_42.2)) (- 6)) 0) [2022-03-20 13:29:52,465 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) 5) 0) [2022-03-20 13:29:52,465 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967295)) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967296)) 6)) (- 1)) 0) [2022-03-20 13:29:52,466 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (* 4294967296 .aux_div_v_it_1_42.2) 1) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_1_42.2) (- 5)) 6)) (- 1)) 0) [2022-03-20 13:29:52,466 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_1_42.2) (* (- 1) main_~l~0_7) 1) 0)) [2022-03-20 13:29:52,466 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967296)) 6)) 715827882) 0) [2022-03-20 13:29:52,466 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (* 4294967296 .aux_div_v_it_1_42.2) 1) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967296)) 6)) (- 1)) 0) [2022-03-20 13:29:52,466 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (* 4294967296 .aux_div_v_it_1_42.2) 1) (- 6)) 0) [2022-03-20 13:29:52,466 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967295)) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_1_42.2) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967295)) 6)) (- 1)) 0) [2022-03-20 13:29:52,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:29:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:29:52,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:29:52,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:29:52,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570533801] [2022-03-20 13:29:52,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570533801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:29:52,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:29:52,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 13:29:55,515 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse15 (mod c_main_~l~0 4294967296))) (and (let ((.cse0 (+ (- 1) c_main_~v2~0))) (or (and (= .cse0 0) (= c_main_~l~0 0)) (and (= .cse0 c_main_~l~0) (< 0 c_main_~l~0) (forall ((aux_div_v_it_1_42 Int) (aux_div_aux_mod_aux_mod_v_it_1_42_25_45 Int)) (let ((.cse13 (* aux_div_v_it_1_42 (- 4294967296))) (.cse14 (* aux_div_aux_mod_aux_mod_v_it_1_42_25_45 (- 4294967296)))) (let ((.cse8 (div (+ .cse13 .cse14 (- 4294967295)) 6)) (.cse10 (div (+ .cse14 (- 4294967296)) 6)) (.cse1 (* aux_div_aux_mod_aux_mod_v_it_1_42_25_45 4294967296)) (.cse6 (* aux_div_v_it_1_42 4294967296)) (.cse12 (* (- 1) c_main_~l~0)) (.cse11 (div (+ .cse13 (- 5)) 6))) (let ((.cse7 (+ .cse11 1)) (.cse2 (div (+ .cse6 .cse12) (- 6))) (.cse4 (div (+ .cse1 .cse6 .cse12 1) (- 6))) (.cse3 (+ .cse10 1)) (.cse9 (div (+ .cse1 (- 4294967295)) (- 6))) (.cse5 (+ .cse8 1))) (or (<= (+ .cse1 4294967296) 0) (<= .cse2 .cse3) (<= .cse4 .cse5) (< c_main_~l~0 (+ .cse6 1)) (<= .cse4 .cse7) (<= 715827882 .cse8) (<= .cse9 .cse7) (<= .cse2 .cse7) (<= .cse9 0) (<= .cse2 .cse5) (<= .cse4 0) (<= 5 .cse1) (<= .cse9 .cse3) (<= .cse2 0) (<= 715827882 .cse10) (<= 715827882 .cse11) (<= (+ 4294967295 .cse6) 0) (<= .cse4 .cse3) (<= .cse9 .cse5))))))))) (= c_main_~i~0 0) (= c_main_~v4~0 0) (= (mod (mod .cse15 6) 4294967296) 0) (< .cse15 (mod c_main_~n~0 4294967296)) (= c_main_~v3~0 0) (= c_main_~j~0 0) (= c_main_~k~0 0))) is different from false [2022-03-20 13:29:57,689 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (mod (+ 4294967295 c_main_~l~0) 4294967296))) (and (= c_main_~i~0 0) (= c_main_~v4~0 0) (= (mod (mod .cse0 6) 4294967296) 0) (< .cse0 (mod c_main_~n~0 4294967296)) (= c_main_~v3~0 0) (= c_main_~j~0 0) (let ((.cse15 (+ (- 1) c_main_~v2~0)) (.cse16 (+ (- 1) c_main_~l~0))) (or (and (forall ((aux_div_v_it_1_42 Int) (aux_div_aux_mod_aux_mod_v_it_1_42_25_45 Int)) (let ((.cse13 (* aux_div_v_it_1_42 (- 4294967296))) (.cse14 (* aux_div_aux_mod_aux_mod_v_it_1_42_25_45 (- 4294967296)))) (let ((.cse9 (div (+ .cse14 (- 4294967296)) 6)) (.cse6 (div (+ .cse13 .cse14 (- 4294967295)) 6)) (.cse1 (* aux_div_aux_mod_aux_mod_v_it_1_42_25_45 4294967296)) (.cse11 (* aux_div_v_it_1_42 4294967296)) (.cse12 (* (- 1) c_main_~l~0)) (.cse10 (div (+ .cse13 (- 5)) 6))) (let ((.cse3 (+ .cse10 1)) (.cse2 (div (+ 2 .cse1 .cse11 .cse12) (- 6))) (.cse7 (div (+ .cse1 (- 4294967295)) (- 6))) (.cse5 (+ .cse6 1)) (.cse4 (div (+ .cse11 .cse12 1) (- 6))) (.cse8 (+ .cse9 1))) (or (<= (+ .cse1 4294967296) 0) (<= .cse2 .cse3) (<= .cse4 .cse5) (<= .cse2 .cse5) (<= 715827882 .cse6) (<= .cse2 0) (<= .cse7 .cse3) (<= .cse4 0) (<= .cse7 0) (<= .cse4 .cse3) (<= 5 .cse1) (<= .cse7 .cse8) (<= 715827882 .cse9) (<= 715827882 .cse10) (<= (+ 4294967295 .cse11) 0) (< c_main_~l~0 (+ 2 .cse11)) (<= .cse2 .cse8) (<= .cse7 .cse5) (<= .cse4 .cse8)))))) (= .cse15 .cse16) (< 1 c_main_~l~0)) (and (= .cse15 0) (= .cse16 0)))) (= c_main_~k~0 0))) is different from false [2022-03-20 13:29:57,696 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:29:57,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1967341726] [2022-03-20 13:29:57,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1967341726] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:29:57,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:29:57,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-20 13:29:57,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914229282] [2022-03-20 13:29:57,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:29:57,697 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-20 13:29:57,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:29:57,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-20 13:29:57,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=54, Unknown=2, NotChecked=30, Total=110 [2022-03-20 13:29:57,697 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 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) [2022-03-20 13:30:21,247 WARN L232 SmtUtils]: Spent 23.40s on a formula simplification. DAG size of input: 95 DAG size of output: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 13:30:23,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:30:49,031 WARN L232 SmtUtils]: Spent 14.96s on a formula simplification. DAG size of input: 111 DAG size of output: 36 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 13:30:51,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:30:53,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:30:55,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:30:57,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:30:57,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:30:57,830 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2022-03-20 13:30:57,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 13:30:57,830 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 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 [2022-03-20 13:30:57,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:30:57,831 INFO L225 Difference]: With dead ends: 29 [2022-03-20 13:30:57,831 INFO L226 Difference]: Without dead ends: 24 [2022-03-20 13:30:57,832 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 53.9s TimeCoverageRelationStatistics Valid=62, Invalid=179, Unknown=7, NotChecked=58, Total=306 [2022-03-20 13:30:57,832 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 26 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 10 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-03-20 13:30:57,833 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 46 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 54 Invalid, 5 Unknown, 46 Unchecked, 10.9s Time] [2022-03-20 13:30:57,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-03-20 13:30:57,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2022-03-20 13:30:57,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:30:57,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2022-03-20 13:30:57,846 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 15 [2022-03-20 13:30:57,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:30:57,846 INFO L478 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2022-03-20 13:30:57,846 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 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) [2022-03-20 13:30:57,846 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2022-03-20 13:30:57,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-03-20 13:30:57,847 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:30:57,847 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:30:57,847 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 13:30:57,847 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:30:57,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:30:57,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1309439716, now seen corresponding path program 1 times [2022-03-20 13:30:57,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:30:57,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1779044247] [2022-03-20 13:33:48,440 WARN L232 SmtUtils]: Spent 2.84m on a formula simplification. DAG size of input: 113 DAG size of output: 111 (called from [L 564] de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.jordan.JordanLoopAcceleration.buildAccelerationFormula) [2022-03-20 13:33:48,442 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 13:33:48,443 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 13:33:48,443 INFO L85 PathProgramCache]: Analyzing trace with hash -689312570, now seen corresponding path program 1 times [2022-03-20 13:33:48,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:33:48,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088121679] [2022-03-20 13:33:48,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:33:48,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:33:48,455 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* (- 6) .aux_div_aux_mod_v_it_2_42_25.2) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.0)) 0)) [2022-03-20 13:33:48,456 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.0) 0)) [2022-03-20 13:33:48,456 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 6) .aux_div_aux_mod_v_it_2_42_25.2) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.0) 4294967296) 0) [2022-03-20 13:33:48,456 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.0) 6) 0) [2022-03-20 13:33:48,456 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 6 .aux_div_aux_mod_v_it_2_42_25.2) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.0) (* 4294967296 .aux_div_v_it_2_42.1) (* (- 1) main_~l~0_7) 1) 0)) [2022-03-20 13:33:48,456 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ main_~l~0_5 (* (- 6) .aux_div_aux_mod_v_it_2_42_25.2) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.0) (* (- 4294967296) .aux_div_v_it_2_42.1) 1) 0)) [2022-03-20 13:33:48,460 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) (- 4294967295)) (- 5)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_2_42.4) (- 4)) 5)) (- 1)) 0) [2022-03-20 13:33:48,460 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) 4294967296) 0) [2022-03-20 13:33:48,460 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_v_it_2_42.4) (* (- 1) main_~l~0_5) 4294967295) 0) [2022-03-20 13:33:48,460 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) 4) 0) [2022-03-20 13:33:48,460 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) (* 4294967296 .aux_div_v_it_2_42.4) (* (- 1) main_~l~0_7) 1) (- 5)) 0) [2022-03-20 13:33:48,461 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_v_it_2_42.4) (* (- 1) main_~l~0_7)) (- 5)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_2_42.4) (- 4)) 5)) (- 1)) 0) [2022-03-20 13:33:48,461 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) (* 4294967296 .aux_div_v_it_2_42.4) (* (- 1) main_~l~0_7) 1) (- 5)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_2_42.4) (- 4)) 5)) (- 1)) 0) [2022-03-20 13:33:48,461 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* 4294967296 .aux_div_v_it_2_42.4) (* (- 1) main_~l~0_7)) (- 5)) 0) [2022-03-20 13:33:48,461 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) (* (- 4294967296) .aux_div_v_it_2_42.4) (- 4294967295)) 5)) 858993459) 0) [2022-03-20 13:33:48,461 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_2_42.4) (* (- 1) main_~l~0_7) 1) 0)) [2022-03-20 13:33:48,461 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) (- 4294967295)) (- 5)) 0) [2022-03-20 13:33:48,461 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_v_it_2_42.4) (* (- 1) main_~l~0_7)) (- 5)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) (* (- 4294967296) .aux_div_v_it_2_42.4) (- 4294967295)) 5)) (- 1)) 0) [2022-03-20 13:33:48,461 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_2_42.4) (- 4)) 5)) 858993459) 0) [2022-03-20 13:33:48,461 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_v_it_2_42.4) (* (- 1) main_~l~0_7)) (- 5)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) (- 4294967296)) 5)) (- 1)) 0) [2022-03-20 13:33:48,462 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) (* 4294967296 .aux_div_v_it_2_42.4) (* (- 1) main_~l~0_7) 1) (- 5)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) (* (- 4294967296) .aux_div_v_it_2_42.4) (- 4294967295)) 5)) (- 1)) 0) [2022-03-20 13:33:48,462 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) (- 4294967296)) 5)) 858993459) 0) [2022-03-20 13:33:48,462 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) (- 4294967295)) (- 5)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) (- 4294967296)) 5)) (- 1)) 0) [2022-03-20 13:33:48,462 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) (* 4294967296 .aux_div_v_it_2_42.4) (* (- 1) main_~l~0_7) 1) (- 5)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) (- 4294967296)) 5)) (- 1)) 0) [2022-03-20 13:33:48,462 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) (- 4294967295)) (- 5)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.3) (* (- 4294967296) .aux_div_v_it_2_42.4) (- 4294967295)) 5)) (- 1)) 0) [2022-03-20 13:33:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:33:48,496 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* (- 6) .aux_div_aux_mod_v_it_2_42_25.7) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.5)) 0)) [2022-03-20 13:33:48,497 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.5) 0)) [2022-03-20 13:33:48,497 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 6) .aux_div_aux_mod_v_it_2_42_25.7) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.5) 4294967296) 0) [2022-03-20 13:33:48,497 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.5) 6) 0) [2022-03-20 13:33:48,497 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 6 .aux_div_aux_mod_v_it_2_42_25.7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.5) (* 4294967296 .aux_div_v_it_2_42.6) (* (- 1) main_~l~0_7) 1) 0)) [2022-03-20 13:33:48,497 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ main_~l~0_5 (* (- 6) .aux_div_aux_mod_v_it_2_42_25.7) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.5) (* (- 4294967296) .aux_div_v_it_2_42.6) 1) 0)) [2022-03-20 13:33:48,498 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) (- 4294967295)) (- 5)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_2_42.9) (- 4)) 5)) (- 1)) 0) [2022-03-20 13:33:48,498 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) 4294967296) 0) [2022-03-20 13:33:48,498 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_v_it_2_42.9) (* (- 1) main_~l~0_5) 4294967295) 0) [2022-03-20 13:33:48,498 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) 4) 0) [2022-03-20 13:33:48,498 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) (* 4294967296 .aux_div_v_it_2_42.9) (* (- 1) main_~l~0_7) 1) (- 5)) 0) [2022-03-20 13:33:48,498 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_v_it_2_42.9) (* (- 1) main_~l~0_7)) (- 5)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_2_42.9) (- 4)) 5)) (- 1)) 0) [2022-03-20 13:33:48,498 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) (* 4294967296 .aux_div_v_it_2_42.9) (* (- 1) main_~l~0_7) 1) (- 5)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_2_42.9) (- 4)) 5)) (- 1)) 0) [2022-03-20 13:33:48,498 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* 4294967296 .aux_div_v_it_2_42.9) (* (- 1) main_~l~0_7)) (- 5)) 0) [2022-03-20 13:33:48,498 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) (* (- 4294967296) .aux_div_v_it_2_42.9) (- 4294967295)) 5)) 858993459) 0) [2022-03-20 13:33:48,499 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_2_42.9) (* (- 1) main_~l~0_7) 1) 0)) [2022-03-20 13:33:48,499 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) (- 4294967295)) (- 5)) 0) [2022-03-20 13:33:48,499 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_v_it_2_42.9) (* (- 1) main_~l~0_7)) (- 5)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) (* (- 4294967296) .aux_div_v_it_2_42.9) (- 4294967295)) 5)) (- 1)) 0) [2022-03-20 13:33:48,499 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_2_42.9) (- 4)) 5)) 858993459) 0) [2022-03-20 13:33:48,499 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_v_it_2_42.9) (* (- 1) main_~l~0_7)) (- 5)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) (- 4294967296)) 5)) (- 1)) 0) [2022-03-20 13:33:48,499 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) (* 4294967296 .aux_div_v_it_2_42.9) (* (- 1) main_~l~0_7) 1) (- 5)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) (* (- 4294967296) .aux_div_v_it_2_42.9) (- 4294967295)) 5)) (- 1)) 0) [2022-03-20 13:33:48,499 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) (- 4294967296)) 5)) 858993459) 0) [2022-03-20 13:33:48,499 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) (- 4294967295)) (- 5)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) (- 4294967296)) 5)) (- 1)) 0) [2022-03-20 13:33:48,499 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) (* 4294967296 .aux_div_v_it_2_42.9) (* (- 1) main_~l~0_7) 1) (- 5)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) (- 4294967296)) 5)) (- 1)) 0) [2022-03-20 13:33:48,499 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) (- 4294967295)) (- 5)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_2_42_25_45.8) (* (- 4294967296) .aux_div_v_it_2_42.9) (- 4294967295)) 5)) (- 1)) 0) [2022-03-20 13:33:48,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:33:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:33:48,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:33:48,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:33:48,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088121679] [2022-03-20 13:33:48,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088121679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:33:48,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:33:48,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 13:33:51,048 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_main_~l~0 4294967296))) (and (= c_main_~i~0 0) (= c_main_~v4~0 0) (= c_main_~v2~0 0) (< .cse0 (mod c_main_~n~0 4294967296)) (= c_main_~l~0 0) (= c_main_~v3~0 0) (= c_main_~j~0 0) (not (= (mod (mod .cse0 6) 4294967296) 0)) (= c_main_~k~0 0))) is different from false [2022-03-20 13:33:53,308 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_main_~l~0 4294967296))) (and (= (mod (mod .cse0 5) 4294967296) 0) (= c_main_~i~0 0) (= c_main_~v4~0 0) (= c_main_~v2~0 0) (< .cse0 (mod c_main_~n~0 4294967296)) (= c_main_~v3~0 1) (= c_main_~l~0 0) (= c_main_~j~0 0) (not (= (mod (mod .cse0 6) 4294967296) 0)) (= c_main_~k~0 0))) is different from false [2022-03-20 13:33:53,317 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:33:53,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1779044247] [2022-03-20 13:33:53,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1779044247] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:33:53,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:33:53,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-20 13:33:53,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99198377] [2022-03-20 13:33:53,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:33:53,318 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-20 13:33:53,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:33:53,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-20 13:33:53,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=42, Unknown=2, NotChecked=26, Total=90 [2022-03-20 13:33:53,319 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2022-03-20 13:33:55,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:33:57,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:33:59,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:34:02,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:34:02,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:34:02,410 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2022-03-20 13:34:02,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 13:34:02,410 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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 16 [2022-03-20 13:34:02,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:34:02,411 INFO L225 Difference]: With dead ends: 38 [2022-03-20 13:34:02,411 INFO L226 Difference]: Without dead ends: 25 [2022-03-20 13:34:02,411 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=32, Invalid=64, Unknown=2, NotChecked=34, Total=132 [2022-03-20 13:34:02,412 INFO L913 BasicCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-03-20 13:34:02,412 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 47 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 4 Unknown, 38 Unchecked, 9.0s Time] [2022-03-20 13:34:02,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-03-20 13:34:02,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-03-20 13:34:02,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:34:02,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2022-03-20 13:34:02,417 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 16 [2022-03-20 13:34:02,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:34:02,417 INFO L478 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2022-03-20 13:34:02,417 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2022-03-20 13:34:02,417 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2022-03-20 13:34:02,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-03-20 13:34:02,417 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:34:02,418 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:34:02,418 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 13:34:02,418 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:34:02,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:34:02,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1923990926, now seen corresponding path program 1 times [2022-03-20 13:34:02,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:34:02,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1015875806] [2022-03-20 13:37:28,791 WARN L232 SmtUtils]: Spent 3.44m on a formula simplification. DAG size of input: 92 DAG size of output: 88 (called from [L 564] de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.jordan.JordanLoopAcceleration.buildAccelerationFormula) [2022-03-20 13:37:28,792 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 13:37:28,793 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 13:37:28,793 INFO L85 PathProgramCache]: Analyzing trace with hash -630207226, now seen corresponding path program 1 times [2022-03-20 13:37:28,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:37:28,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122205471] [2022-03-20 13:37:28,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:37:28,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:37:28,799 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_3_42.2) (* (- 6) .aux_div_aux_mod_v_it_3_42_25.0) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.1) 1) 0)) [2022-03-20 13:37:28,799 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 6) .aux_div_aux_mod_v_it_3_42_25.0) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.1) 4294967296) 0) [2022-03-20 13:37:28,799 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_3_42.2) (* 6 .aux_div_aux_mod_v_it_3_42_25.0) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.1) (* (- 1) main_~l~0_7) 1) 0)) [2022-03-20 13:37:28,799 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.1) 6) 0) [2022-03-20 13:37:28,799 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* (- 6) .aux_div_aux_mod_v_it_3_42_25.0) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.1)) 0)) [2022-03-20 13:37:28,799 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.1) 0)) [2022-03-20 13:37:28,800 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 5) .aux_div_aux_mod_v_it_3_42_25.3) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.4) 4294967296) 0) [2022-03-20 13:37:28,800 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* (- 5) .aux_div_aux_mod_v_it_3_42_25.3) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.4)) 0)) [2022-03-20 13:37:28,800 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.4) 5) 0) [2022-03-20 13:37:28,800 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_3_42.5) (* 5 .aux_div_aux_mod_v_it_3_42_25.3) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.4) (* (- 1) main_~l~0_7) 1) 0)) [2022-03-20 13:37:28,800 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_3_42.5) (* (- 5) .aux_div_aux_mod_v_it_3_42_25.3) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.4) 1) 0)) [2022-03-20 13:37:28,800 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.4) 0)) [2022-03-20 13:37:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:37:28,832 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_3_42.8) (* (- 6) .aux_div_aux_mod_v_it_3_42_25.6) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.7) 1) 0)) [2022-03-20 13:37:28,833 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 6) .aux_div_aux_mod_v_it_3_42_25.6) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.7) 4294967296) 0) [2022-03-20 13:37:28,833 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_3_42.8) (* 6 .aux_div_aux_mod_v_it_3_42_25.6) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.7) (* (- 1) main_~l~0_7) 1) 0)) [2022-03-20 13:37:28,833 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.7) 6) 0) [2022-03-20 13:37:28,833 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* (- 6) .aux_div_aux_mod_v_it_3_42_25.6) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.7)) 0)) [2022-03-20 13:37:28,833 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.7) 0)) [2022-03-20 13:37:28,833 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 5) .aux_div_aux_mod_v_it_3_42_25.9) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.10) 4294967296) 0) [2022-03-20 13:37:28,833 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* (- 5) .aux_div_aux_mod_v_it_3_42_25.9) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.10)) 0)) [2022-03-20 13:37:28,833 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.10) 5) 0) [2022-03-20 13:37:28,833 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_3_42.11) (* 5 .aux_div_aux_mod_v_it_3_42_25.9) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.10) (* (- 1) main_~l~0_7) 1) 0)) [2022-03-20 13:37:28,834 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_3_42.11) (* (- 5) .aux_div_aux_mod_v_it_3_42_25.9) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.10) 1) 0)) [2022-03-20 13:37:28,834 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_3_42_25_45.10) 0)) [2022-03-20 13:37:28,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:37:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:37:28,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:37:28,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:37:28,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122205471] [2022-03-20 13:37:28,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122205471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:37:28,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:37:28,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 13:37:31,298 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_main_~l~0 4294967296))) (and (= c_main_~i~0 0) (= c_main_~v4~0 0) (= c_main_~v2~0 0) (< .cse0 (mod c_main_~n~0 4294967296)) (= c_main_~l~0 0) (= c_main_~v3~0 0) (= c_main_~j~0 0) (not (= (mod (mod .cse0 6) 4294967296) 0)) (= c_main_~k~0 0))) is different from false [2022-03-20 13:37:33,556 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_main_~l~0 4294967296))) (and (not (= (mod (mod .cse0 5) 4294967296) 0)) (= c_main_~i~0 0) (= c_main_~v4~0 0) (= c_main_~v2~0 0) (< .cse0 (mod c_main_~n~0 4294967296)) (= c_main_~l~0 0) (= c_main_~v3~0 0) (= c_main_~j~0 0) (not (= (mod (mod .cse0 6) 4294967296) 0)) (= c_main_~k~0 0))) is different from false [2022-03-20 13:37:35,811 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_main_~l~0 4294967296))) (and (not (= (mod (mod .cse0 5) 4294967296) 0)) (= c_main_~i~0 0) (= c_main_~v2~0 0) (= (mod c_main_~l~0 4) 0) (< .cse0 (mod c_main_~n~0 4294967296)) (= (+ (- 1) c_main_~v4~0) 0) (= c_main_~l~0 0) (= c_main_~v3~0 0) (= c_main_~j~0 0) (not (= (mod (mod .cse0 6) 4294967296) 0)) (= c_main_~k~0 0))) is different from false [2022-03-20 13:37:35,821 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:37:35,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1015875806] [2022-03-20 13:37:35,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1015875806] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:37:35,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:37:35,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-20 13:37:35,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159380412] [2022-03-20 13:37:35,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:37:35,822 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-20 13:37:35,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:37:35,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-20 13:37:35,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=33, Unknown=3, NotChecked=36, Total=90 [2022-03-20 13:37:35,822 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 8 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) [2022-03-20 13:37:37,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:37:40,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:37:40,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:37:40,444 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2022-03-20 13:37:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 13:37:40,444 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 8 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 [2022-03-20 13:37:40,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:37:40,445 INFO L225 Difference]: With dead ends: 39 [2022-03-20 13:37:40,445 INFO L226 Difference]: Without dead ends: 26 [2022-03-20 13:37:40,445 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=28, Invalid=53, Unknown=3, NotChecked=48, Total=132 [2022-03-20 13:37:40,446 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 13 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 13:37:40,446 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 52 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 2 Unknown, 57 Unchecked, 4.6s Time] [2022-03-20 13:37:40,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-03-20 13:37:40,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2022-03-20 13:37:40,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:37:40,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2022-03-20 13:37:40,449 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 17 [2022-03-20 13:37:40,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:37:40,450 INFO L478 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2022-03-20 13:37:40,450 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 8 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) [2022-03-20 13:37:40,450 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2022-03-20 13:37:40,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-03-20 13:37:40,450 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:37:40,450 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:37:40,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 13:37:40,451 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:37:40,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:37:40,451 INFO L85 PathProgramCache]: Analyzing trace with hash -7506980, now seen corresponding path program 2 times [2022-03-20 13:37:40,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:37:40,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1835641035] [2022-03-20 13:39:21,988 WARN L232 SmtUtils]: Spent 1.69m on a formula simplification. DAG size of input: 94 DAG size of output: 92 (called from [L 564] de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.jordan.JordanLoopAcceleration.buildAccelerationFormula) [2022-03-20 13:39:21,989 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 13:39:21,990 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 13:39:21,990 INFO L85 PathProgramCache]: Analyzing trace with hash -571101882, now seen corresponding path program 1 times [2022-03-20 13:39:21,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:39:21,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771534853] [2022-03-20 13:39:21,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:39:21,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:39:21,995 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_4_42.0) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) 1) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_4_42.0) (- 5)) 6)) (- 1)) 0) [2022-03-20 13:39:21,995 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) (- 4294967295)) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_4_42.0) (- 5)) 6)) (- 1)) 0) [2022-03-20 13:39:21,995 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_4_42.0)) (- 6)) 0) [2022-03-20 13:39:21,996 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_4_42.0) (- 5)) 6)) 715827882) 0) [2022-03-20 13:39:21,996 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) 5) 0) [2022-03-20 13:39:21,996 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) 4294967296) 0) [2022-03-20 13:39:21,996 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) (- 4294967296)) 6)) 715827882) 0) [2022-03-20 13:39:21,996 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_4_42.0) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) 1) (- 6)) 0) [2022-03-20 13:39:21,996 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) (- 4294967295)) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) main_~l~0_5 (* (- 4294967296) .aux_div_v_it_4_42.0) (- 4294967295)) 6)) (- 1)) 0) [2022-03-20 13:39:21,996 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) (- 4294967295)) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) (- 4294967296)) 6)) (- 1)) 0) [2022-03-20 13:39:21,996 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_4_42.0) (* (- 1) main_~l~0_7) 1) 0)) [2022-03-20 13:39:21,996 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_4_42.0)) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) main_~l~0_5 (* (- 4294967296) .aux_div_v_it_4_42.0) (- 4294967295)) 6)) (- 1)) 0) [2022-03-20 13:39:21,996 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_v_it_4_42.0) (* (- 1) main_~l~0_5) 4294967295) 0) [2022-03-20 13:39:21,996 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) (- 4294967295)) (- 6)) 0) [2022-03-20 13:39:21,997 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_4_42.0)) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_4_42.0) (- 5)) 6)) (- 1)) 0) [2022-03-20 13:39:21,997 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_4_42.0) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) 1) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) (- 4294967296)) 6)) (- 1)) 0) [2022-03-20 13:39:21,997 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_4_42.0)) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) (- 4294967296)) 6)) (- 1)) 0) [2022-03-20 13:39:21,997 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) main_~l~0_5 (* (- 4294967296) .aux_div_v_it_4_42.0) (- 4294967295)) 6)) 715827882) 0) [2022-03-20 13:39:21,997 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_4_42.0) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) 1) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.1) main_~l~0_5 (* (- 4294967296) .aux_div_v_it_4_42.0) (- 4294967295)) 6)) (- 1)) 0) [2022-03-20 13:39:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:39:22,010 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_4_42.2) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) 1) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_4_42.2) (- 5)) 6)) (- 1)) 0) [2022-03-20 13:39:22,010 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) (- 4294967295)) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_4_42.2) (- 5)) 6)) (- 1)) 0) [2022-03-20 13:39:22,010 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_4_42.2)) (- 6)) 0) [2022-03-20 13:39:22,010 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_4_42.2) (- 5)) 6)) 715827882) 0) [2022-03-20 13:39:22,010 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) 5) 0) [2022-03-20 13:39:22,010 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) 4294967296) 0) [2022-03-20 13:39:22,011 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) (- 4294967296)) 6)) 715827882) 0) [2022-03-20 13:39:22,011 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_4_42.2) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) 1) (- 6)) 0) [2022-03-20 13:39:22,011 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) (- 4294967295)) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) main_~l~0_5 (* (- 4294967296) .aux_div_v_it_4_42.2) (- 4294967295)) 6)) (- 1)) 0) [2022-03-20 13:39:22,011 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) (- 4294967295)) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) (- 4294967296)) 6)) (- 1)) 0) [2022-03-20 13:39:22,011 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_4_42.2) (* (- 1) main_~l~0_7) 1) 0)) [2022-03-20 13:39:22,011 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_4_42.2)) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) main_~l~0_5 (* (- 4294967296) .aux_div_v_it_4_42.2) (- 4294967295)) 6)) (- 1)) 0) [2022-03-20 13:39:22,011 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_v_it_4_42.2) (* (- 1) main_~l~0_5) 4294967295) 0) [2022-03-20 13:39:22,011 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) (- 4294967295)) (- 6)) 0) [2022-03-20 13:39:22,011 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_4_42.2)) (- 6)) (* (- 1) (div (+ main_~l~0_5 (* (- 4294967296) .aux_div_v_it_4_42.2) (- 5)) 6)) (- 1)) 0) [2022-03-20 13:39:22,011 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_4_42.2) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) 1) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) (- 4294967296)) 6)) (- 1)) 0) [2022-03-20 13:39:22,011 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_4_42.2)) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) (- 4294967296)) 6)) (- 1)) 0) [2022-03-20 13:39:22,012 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) main_~l~0_5 (* (- 4294967296) .aux_div_v_it_4_42.2) (- 4294967295)) 6)) 715827882) 0) [2022-03-20 13:39:22,012 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* (- 1) main_~l~0_7) (* 4294967296 .aux_div_v_it_4_42.2) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) 1) (- 6)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_4_42_25_45.3) main_~l~0_5 (* (- 4294967296) .aux_div_v_it_4_42.2) (- 4294967295)) 6)) (- 1)) 0) [2022-03-20 13:39:22,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:39:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:39:22,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:39:22,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:39:22,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771534853] [2022-03-20 13:39:22,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771534853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:39:22,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:39:22,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 13:39:25,078 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse15 (mod c_main_~l~0 4294967296))) (and (= c_main_~i~0 0) (= c_main_~v4~0 0) (let ((.cse0 (+ (- 1) c_main_~v2~0))) (or (and (= .cse0 0) (= c_main_~l~0 0)) (and (= .cse0 c_main_~l~0) (< 0 c_main_~l~0) (forall ((aux_div_v_it_4_42 Int) (aux_div_aux_mod_aux_mod_v_it_4_42_25_45 Int)) (let ((.cse14 (* aux_div_aux_mod_aux_mod_v_it_4_42_25_45 (- 4294967296))) (.cse13 (* aux_div_v_it_4_42 (- 4294967296)))) (let ((.cse10 (div (+ .cse14 .cse13 (- 4294967295)) 6)) (.cse7 (div (+ .cse14 (- 4294967296)) 6)) (.cse2 (* aux_div_aux_mod_aux_mod_v_it_4_42_25_45 4294967296)) (.cse6 (* aux_div_v_it_4_42 4294967296)) (.cse12 (* (- 1) c_main_~l~0)) (.cse11 (div (+ .cse13 (- 5)) 6))) (let ((.cse4 (+ .cse11 1)) (.cse5 (div (+ .cse6 .cse12) (- 6))) (.cse1 (div (+ .cse6 .cse2 .cse12 1) (- 6))) (.cse8 (+ .cse7 1)) (.cse3 (div (+ .cse2 (- 4294967295)) (- 6))) (.cse9 (+ .cse10 1))) (or (<= .cse1 0) (<= 5 .cse2) (<= .cse3 .cse4) (<= .cse5 0) (<= (+ .cse2 4294967296) 0) (< c_main_~l~0 (+ .cse6 1)) (<= 715827882 .cse7) (<= (+ 4294967295 .cse6) 0) (<= .cse5 .cse8) (<= .cse1 .cse9) (<= .cse3 .cse8) (<= .cse5 .cse4) (<= 715827882 .cse10) (<= .cse1 .cse4) (<= .cse3 0) (<= .cse5 .cse9) (<= .cse1 .cse8) (<= 715827882 .cse11) (<= .cse3 .cse9))))))))) (= (mod (mod .cse15 6) 4294967296) 0) (< .cse15 (mod c_main_~n~0 4294967296)) (= c_main_~v3~0 0) (= c_main_~j~0 0) (= c_main_~k~0 0))) is different from false [2022-03-20 13:39:56,232 WARN L232 SmtUtils]: Spent 24.61s on a formula simplification. DAG size of input: 89 DAG size of output: 27 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 13:39:56,305 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:39:56,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1835641035] [2022-03-20 13:39:56,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1835641035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:39:56,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:39:56,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 13:39:56,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99352479] [2022-03-20 13:39:56,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:39:56,306 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-20 13:39:56,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:39:56,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-20 13:39:56,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=4, NotChecked=20, Total=156 [2022-03-20 13:39:56,307 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 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) [2022-03-20 13:39:58,559 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse15 (mod c_main_~l~0 4294967296))) (and (= |c_#NULL.base| |c_old(#NULL.base)|) (= c_main_~i~0 0) (= c_main_~v4~0 0) (let ((.cse0 (+ (- 1) c_main_~v2~0))) (or (and (= .cse0 0) (= c_main_~l~0 0)) (and (= .cse0 c_main_~l~0) (< 0 c_main_~l~0) (forall ((aux_div_v_it_4_42 Int) (aux_div_aux_mod_aux_mod_v_it_4_42_25_45 Int)) (let ((.cse14 (* aux_div_aux_mod_aux_mod_v_it_4_42_25_45 (- 4294967296))) (.cse13 (* aux_div_v_it_4_42 (- 4294967296)))) (let ((.cse10 (div (+ .cse14 .cse13 (- 4294967295)) 6)) (.cse7 (div (+ .cse14 (- 4294967296)) 6)) (.cse2 (* aux_div_aux_mod_aux_mod_v_it_4_42_25_45 4294967296)) (.cse6 (* aux_div_v_it_4_42 4294967296)) (.cse12 (* (- 1) c_main_~l~0)) (.cse11 (div (+ .cse13 (- 5)) 6))) (let ((.cse4 (+ .cse11 1)) (.cse5 (div (+ .cse6 .cse12) (- 6))) (.cse1 (div (+ .cse6 .cse2 .cse12 1) (- 6))) (.cse8 (+ .cse7 1)) (.cse3 (div (+ .cse2 (- 4294967295)) (- 6))) (.cse9 (+ .cse10 1))) (or (<= .cse1 0) (<= 5 .cse2) (<= .cse3 .cse4) (<= .cse5 0) (<= (+ .cse2 4294967296) 0) (< c_main_~l~0 (+ .cse6 1)) (<= 715827882 .cse7) (<= (+ 4294967295 .cse6) 0) (<= .cse5 .cse8) (<= .cse1 .cse9) (<= .cse3 .cse8) (<= .cse5 .cse4) (<= 715827882 .cse10) (<= .cse1 .cse4) (<= .cse3 0) (<= .cse5 .cse9) (<= .cse1 .cse8) (<= 715827882 .cse11) (<= .cse3 .cse9))))))))) (= (mod (mod .cse15 6) 4294967296) 0) (< .cse15 (mod c_main_~n~0 4294967296)) (= c_main_~v3~0 0) (= c_main_~j~0 0) (= |c_#NULL.offset| |c_old(#NULL.offset)|) (= |c_old(~SIZE~0)| c_~SIZE~0) (= c_main_~k~0 0))) is different from false [2022-03-20 13:40:00,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:40:02,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:40:05,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:40:07,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:40:09,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:40:09,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:40:09,908 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2022-03-20 13:40:09,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 13:40:09,908 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 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 18 [2022-03-20 13:40:09,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:40:09,909 INFO L225 Difference]: With dead ends: 39 [2022-03-20 13:40:09,909 INFO L226 Difference]: Without dead ends: 27 [2022-03-20 13:40:09,910 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 36.0s TimeCoverageRelationStatistics Valid=66, Invalid=147, Unknown=5, NotChecked=54, Total=272 [2022-03-20 13:40:09,912 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 28 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-03-20 13:40:09,913 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 43 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 5 Unknown, 27 Unchecked, 11.3s Time] [2022-03-20 13:40:09,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-03-20 13:40:09,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-03-20 13:40:09,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:40:09,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2022-03-20 13:40:09,920 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 18 [2022-03-20 13:40:09,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:40:09,921 INFO L478 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2022-03-20 13:40:09,921 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 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) [2022-03-20 13:40:09,921 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2022-03-20 13:40:09,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-03-20 13:40:09,922 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:40:09,922 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:40:09,922 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 13:40:09,922 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:40:09,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:40:09,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1061425385, now seen corresponding path program 1 times [2022-03-20 13:40:09,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:40:09,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1757083516]