/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/sumt3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 13:21:13,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 13:21:13,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 13:21:13,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 13:21:13,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 13:21:13,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 13:21:13,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 13:21:13,635 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 13:21:13,641 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 13:21:13,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 13:21:13,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 13:21:13,643 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 13:21:13,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 13:21:13,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 13:21:13,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 13:21:13,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 13:21:13,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 13:21:13,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 13:21:13,644 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 13:21:13,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 13:21:13,644 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 13:21:13,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 13:21:13,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 13:21:13,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 13:21:13,644 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 13:21:13,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 13:21:13,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 13:21:13,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 13:21:13,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 13:21:13,645 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 13:21:13,645 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 13:21:13,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 13:21:13,645 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-20 13:21:13,645 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 13:21:13,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 13:21:13,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 13:21:13,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 13:21:13,825 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 13:21:13,837 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 13:21:13,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt3.c [2022-03-20 13:21:13,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8b0698a3/503e54180d8e4854a06316a216c4424c/FLAG30e3851f7 [2022-03-20 13:21:14,231 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 13:21:14,232 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt3.c [2022-03-20 13:21:14,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8b0698a3/503e54180d8e4854a06316a216c4424c/FLAG30e3851f7 [2022-03-20 13:21:14,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8b0698a3/503e54180d8e4854a06316a216c4424c [2022-03-20 13:21:14,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 13:21:14,246 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 13:21:14,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 13:21:14,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 13:21:14,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 13:21:14,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:21:14" (1/1) ... [2022-03-20 13:21:14,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40b31bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:21:14, skipping insertion in model container [2022-03-20 13:21:14,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:21:14" (1/1) ... [2022-03-20 13:21:14,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 13:21:14,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 13:21:14,364 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/sumt3.c[403,416] [2022-03-20 13:21:14,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 13:21:14,377 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 13:21:14,384 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/sumt3.c[403,416] [2022-03-20 13:21:14,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 13:21:14,397 INFO L208 MainTranslator]: Completed translation [2022-03-20 13:21:14,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:21:14 WrapperNode [2022-03-20 13:21:14,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 13:21:14,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 13:21:14,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 13:21:14,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 13:21:14,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:21:14" (1/1) ... [2022-03-20 13:21:14,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:21:14" (1/1) ... [2022-03-20 13:21:14,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:21:14" (1/1) ... [2022-03-20 13:21:14,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:21:14" (1/1) ... [2022-03-20 13:21:14,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:21:14" (1/1) ... [2022-03-20 13:21:14,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:21:14" (1/1) ... [2022-03-20 13:21:14,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:21:14" (1/1) ... [2022-03-20 13:21:14,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 13:21:14,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 13:21:14,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 13:21:14,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 13:21:14,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:21:14" (1/1) ... [2022-03-20 13:21:14,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 13:21:14,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:21:14,452 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 13:21:14,453 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 13:21:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 13:21:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 13:21:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 13:21:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-20 13:21:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 13:21:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 13:21:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 13:21:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 13:21:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 13:21:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 13:21:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-20 13:21:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 13:21:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-03-20 13:21:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 13:21:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 13:21:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 13:21:14,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 13:21:14,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 13:21:14,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 13:21:14,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 13:21:14,530 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 13:21:14,531 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 13:21:16,798 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 13:21:16,803 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 13:21:16,803 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 13:21:16,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:21:16 BoogieIcfgContainer [2022-03-20 13:21:16,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 13:21:16,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 13:21:16,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 13:21:16,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 13:21:16,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 01:21:14" (1/3) ... [2022-03-20 13:21:16,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cda2d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:21:16, skipping insertion in model container [2022-03-20 13:21:16,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:21:14" (2/3) ... [2022-03-20 13:21:16,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cda2d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:21:16, skipping insertion in model container [2022-03-20 13:21:16,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:21:16" (3/3) ... [2022-03-20 13:21:16,814 INFO L111 eAbstractionObserver]: Analyzing ICFG sumt3.c [2022-03-20 13:21:16,817 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 13:21:16,817 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 13:21:16,861 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 13:21:16,870 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 13:21:16,870 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 13:21:16,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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 13:21:16,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-20 13:21:16,897 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:21:16,897 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:21:16,898 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:21:16,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:21:16,905 INFO L85 PathProgramCache]: Analyzing trace with hash -639692549, now seen corresponding path program 1 times [2022-03-20 13:21:16,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:21:16,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1047167972] [2022-03-20 13:21:16,919 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:21:16,919 INFO L85 PathProgramCache]: Analyzing trace with hash -639692549, now seen corresponding path program 2 times [2022-03-20 13:21:16,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:21:16,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779412262] [2022-03-20 13:21:16,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:21:16,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:21:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:21:17,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:21:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:21:17,089 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 13:21:17,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:21:17,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779412262] [2022-03-20 13:21:17,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779412262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:21:17,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:21:17,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-20 13:21:17,092 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:21:17,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1047167972] [2022-03-20 13:21:17,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1047167972] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:21:17,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:21:17,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-20 13:21:17,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255309618] [2022-03-20 13:21:17,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:21:17,096 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 13:21:17,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:21:17,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 13:21:17,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 13:21:17,123 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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 13:21:17,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:21:17,172 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2022-03-20 13:21:17,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 13:21:17,174 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 13:21:17,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:21:17,178 INFO L225 Difference]: With dead ends: 35 [2022-03-20 13:21:17,178 INFO L226 Difference]: Without dead ends: 16 [2022-03-20 13:21:17,180 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 13:21:17,182 INFO L913 BasicCegarLoop]: 23 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 26 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 13:21:17,183 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 26 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 13:21:17,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-03-20 13:21:17,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-03-20 13:21:17,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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 13:21:17,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-03-20 13:21:17,207 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2022-03-20 13:21:17,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:21:17,207 INFO L478 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-03-20 13:21:17,207 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 13:21:17,208 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-03-20 13:21:17,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-20 13:21:17,209 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:21:17,209 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:21:17,209 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 13:21:17,210 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:21:17,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:21:17,212 INFO L85 PathProgramCache]: Analyzing trace with hash -654468885, now seen corresponding path program 1 times [2022-03-20 13:21:17,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:21:17,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [233190969] [2022-03-20 13:21:17,214 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:21:17,214 INFO L85 PathProgramCache]: Analyzing trace with hash -654468885, now seen corresponding path program 2 times [2022-03-20 13:21:17,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:21:17,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479539834] [2022-03-20 13:21:17,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:21:17,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:21:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:21:17,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:21:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:21:17,413 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 13:21:17,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:21:17,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479539834] [2022-03-20 13:21:17,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479539834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:21:17,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:21:17,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 13:21:17,415 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:21:17,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [233190969] [2022-03-20 13:21:17,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [233190969] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:21:17,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:21:17,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 13:21:17,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488384586] [2022-03-20 13:21:17,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:21:17,416 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 13:21:17,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:21:17,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 13:21:17,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 13:21:17,417 INFO L87 Difference]: Start difference. First operand 16 states and 18 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 13:21:19,475 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 13:21:19,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:21:19,682 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-03-20 13:21:19,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 13:21:19,683 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 13:21:19,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:21:19,684 INFO L225 Difference]: With dead ends: 23 [2022-03-20 13:21:19,684 INFO L226 Difference]: Without dead ends: 18 [2022-03-20 13:21:19,685 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 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 13:21:19,686 INFO L913 BasicCegarLoop]: 12 mSDtfsCounter, 14 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 13:21:19,686 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 33 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 13:21:19,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-03-20 13:21:19,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-03-20 13:21:19,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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 13:21:19,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-03-20 13:21:19,690 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2022-03-20 13:21:19,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:21:19,690 INFO L478 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-03-20 13:21:19,690 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 13:21:19,691 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-03-20 13:21:19,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-20 13:21:19,691 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:21:19,691 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:21:19,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 13:21:19,691 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:21:19,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:21:19,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1940796243, now seen corresponding path program 1 times [2022-03-20 13:21:19,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:21:19,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1829164180] [2022-03-20 13:22:25,584 WARN L232 SmtUtils]: Spent 1.09m on a formula simplification. DAG size of input: 96 DAG size of output: 86 (called from [L 564] de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.jordan.JordanLoopAcceleration.buildAccelerationFormula) [2022-03-20 13:22:25,588 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 13:22:25,590 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 13:22:25,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1843117673, now seen corresponding path program 1 times [2022-03-20 13:22:25,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:22:25,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790037672] [2022-03-20 13:22:25,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:22:25,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:22:25,606 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_6 (* (- 4294967296) .aux_div_v_it_1_42.0) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967295)) 3)) 1431655765) 0) [2022-03-20 13:22:25,607 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 13:22:25,607 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_6 (* (- 4294967296) .aux_div_v_it_1_42.0) (- 2)) 3)) 1431655765) 0) [2022-03-20 13:22:25,607 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ main_~i~0_6 (* (- 1) main_~i~0_7) (* (- 1) main_~l~0_6) (* 4294967296 .aux_div_v_it_1_42.0)) (- 3)) (* (- 1) (div (+ main_~l~0_6 (* (- 4294967296) .aux_div_v_it_1_42.0) (- 2)) 3)) (- 1)) 0) [2022-03-20 13:22:25,607 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ main_~i~0_6 (* 4294967296 .aux_div_v_it_1_42.0) (* (- 1) main_~l~0_6) (* (- 1) main_~i~0_7) 1) 0)) [2022-03-20 13:22:25,607 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ main_~i~0_6 (* (- 1) main_~i~0_7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (* (- 1) main_~l~0_6) (* 4294967296 .aux_div_v_it_1_42.0) 1) (- 3)) 0) [2022-03-20 13:22:25,607 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ main_~i~0_6 (* (- 1) main_~i~0_7) (* (- 1) main_~l~0_6) (* 4294967296 .aux_div_v_it_1_42.0)) (- 3)) (* (- 1) (div (+ main_~l~0_6 (* (- 4294967296) .aux_div_v_it_1_42.0) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967295)) 3)) (- 1)) 0) [2022-03-20 13:22:25,608 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)) 3)) 1431655765) 0) [2022-03-20 13:22:25,608 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)) (- 3)) (* (- 1) (div (+ main_~l~0_6 (* (- 4294967296) .aux_div_v_it_1_42.0) (- 2)) 3)) (- 1)) 0) [2022-03-20 13:22:25,608 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ main_~i~0_6 (* (- 1) main_~i~0_7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (* (- 1) main_~l~0_6) (* 4294967296 .aux_div_v_it_1_42.0) 1) (- 3)) (* (- 1) (div (+ main_~l~0_6 (* (- 4294967296) .aux_div_v_it_1_42.0) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967295)) 3)) (- 1)) 0) [2022-03-20 13:22:25,608 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ main_~i~0_6 (* (- 1) main_~i~0_7) (* (- 1) main_~l~0_6) (* 4294967296 .aux_div_v_it_1_42.0)) (- 3)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967296)) 3)) (- 1)) 0) [2022-03-20 13:22:25,608 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_v_it_1_42.0) (* (- 1) main_~l~0_6) 4294967295) 0) [2022-03-20 13:22:25,608 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ main_~i~0_6 (* (- 1) main_~i~0_7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (* (- 1) main_~l~0_6) (* 4294967296 .aux_div_v_it_1_42.0) 1) (- 3)) (* (- 1) (div (+ main_~l~0_6 (* (- 4294967296) .aux_div_v_it_1_42.0) (- 2)) 3)) (- 1)) 0) [2022-03-20 13:22:25,608 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)) (- 3)) 0) [2022-03-20 13:22:25,608 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) 2) 0) [2022-03-20 13:22:25,609 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ main_~i~0_6 (* (- 1) main_~i~0_7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (* (- 1) main_~l~0_6) (* 4294967296 .aux_div_v_it_1_42.0) 1) (- 3)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967296)) 3)) (- 1)) 0) [2022-03-20 13:22:25,609 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)) (- 3)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967296)) 3)) (- 1)) 0) [2022-03-20 13:22:25,609 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)) (- 3)) (* (- 1) (div (+ main_~l~0_6 (* (- 4294967296) .aux_div_v_it_1_42.0) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.1) (- 4294967295)) 3)) (- 1)) 0) [2022-03-20 13:22:25,609 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ main_~i~0_6 (* (- 1) main_~i~0_7) (* (- 1) main_~l~0_6) (* 4294967296 .aux_div_v_it_1_42.0)) (- 3)) 0) [2022-03-20 13:22:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:22:25,645 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_6 (* (- 4294967296) .aux_div_v_it_1_42.2) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967295)) 3)) 1431655765) 0) [2022-03-20 13:22:25,645 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 13:22:25,645 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_6 (* (- 4294967296) .aux_div_v_it_1_42.2) (- 2)) 3)) 1431655765) 0) [2022-03-20 13:22:25,646 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ main_~i~0_6 (* (- 1) main_~i~0_7) (* (- 1) main_~l~0_6) (* 4294967296 .aux_div_v_it_1_42.2)) (- 3)) (* (- 1) (div (+ main_~l~0_6 (* (- 4294967296) .aux_div_v_it_1_42.2) (- 2)) 3)) (- 1)) 0) [2022-03-20 13:22:25,646 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ main_~i~0_6 (* 4294967296 .aux_div_v_it_1_42.2) (* (- 1) main_~l~0_6) (* (- 1) main_~i~0_7) 1) 0)) [2022-03-20 13:22:25,646 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ main_~i~0_6 (* (- 1) main_~i~0_7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (* (- 1) main_~l~0_6) (* 4294967296 .aux_div_v_it_1_42.2) 1) (- 3)) 0) [2022-03-20 13:22:25,646 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ main_~i~0_6 (* (- 1) main_~i~0_7) (* (- 1) main_~l~0_6) (* 4294967296 .aux_div_v_it_1_42.2)) (- 3)) (* (- 1) (div (+ main_~l~0_6 (* (- 4294967296) .aux_div_v_it_1_42.2) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967295)) 3)) (- 1)) 0) [2022-03-20 13:22:25,646 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)) 3)) 1431655765) 0) [2022-03-20 13:22:25,646 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)) (- 3)) (* (- 1) (div (+ main_~l~0_6 (* (- 4294967296) .aux_div_v_it_1_42.2) (- 2)) 3)) (- 1)) 0) [2022-03-20 13:22:25,646 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ main_~i~0_6 (* (- 1) main_~i~0_7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (* (- 1) main_~l~0_6) (* 4294967296 .aux_div_v_it_1_42.2) 1) (- 3)) (* (- 1) (div (+ main_~l~0_6 (* (- 4294967296) .aux_div_v_it_1_42.2) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967295)) 3)) (- 1)) 0) [2022-03-20 13:22:25,647 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ main_~i~0_6 (* (- 1) main_~i~0_7) (* (- 1) main_~l~0_6) (* 4294967296 .aux_div_v_it_1_42.2)) (- 3)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967296)) 3)) (- 1)) 0) [2022-03-20 13:22:25,647 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_v_it_1_42.2) (* (- 1) main_~l~0_6) 4294967295) 0) [2022-03-20 13:22:25,647 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ main_~i~0_6 (* (- 1) main_~i~0_7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (* (- 1) main_~l~0_6) (* 4294967296 .aux_div_v_it_1_42.2) 1) (- 3)) (* (- 1) (div (+ main_~l~0_6 (* (- 4294967296) .aux_div_v_it_1_42.2) (- 2)) 3)) (- 1)) 0) [2022-03-20 13:22:25,647 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)) (- 3)) 0) [2022-03-20 13:22:25,647 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) 2) 0) [2022-03-20 13:22:25,647 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ main_~i~0_6 (* (- 1) main_~i~0_7) (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (* (- 1) main_~l~0_6) (* 4294967296 .aux_div_v_it_1_42.2) 1) (- 3)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967296)) 3)) (- 1)) 0) [2022-03-20 13:22:25,647 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)) (- 3)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967296)) 3)) (- 1)) 0) [2022-03-20 13:22:25,647 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)) (- 3)) (* (- 1) (div (+ main_~l~0_6 (* (- 4294967296) .aux_div_v_it_1_42.2) (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_1_42_25_45.3) (- 4294967295)) 3)) (- 1)) 0) [2022-03-20 13:22:25,648 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ main_~i~0_6 (* (- 1) main_~i~0_7) (* (- 1) main_~l~0_6) (* 4294967296 .aux_div_v_it_1_42.2)) (- 3)) 0) [2022-03-20 13:22:25,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:22:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:22:25,879 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 13:22:25,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:22:25,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790037672] [2022-03-20 13:22:25,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790037672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:22:25,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:22:25,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 13:22:28,535 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse15 (mod c_main_~l~0 4294967296))) (and (let ((.cse14 (+ (- 1) c_main_~i~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 ((.cse12 (* aux_div_v_it_1_42 (- 4294967296))) (.cse13 (* aux_div_aux_mod_aux_mod_v_it_1_42_25_45 (- 4294967296)))) (let ((.cse6 (div (+ .cse13 (- 4294967296)) 3)) (.cse10 (div (+ .cse12 .cse13 (- 4294967295)) 3)) (.cse9 (div (+ (- 2) .cse12) 3)) (.cse11 (* (- 1) c_main_~i~0)) (.cse0 (* aux_div_aux_mod_aux_mod_v_it_1_42_25_45 4294967296)) (.cse3 (* aux_div_v_it_1_42 4294967296))) (let ((.cse4 (div (+ .cse11 2 .cse0 .cse3) (- 3))) (.cse2 (+ .cse9 1)) (.cse1 (div (+ .cse0 (- 4294967295)) (- 3))) (.cse5 (+ .cse10 1)) (.cse7 (div (+ .cse11 .cse3 1) (- 3))) (.cse8 (+ .cse6 1))) (or (<= (+ .cse0 4294967296) 0) (<= .cse1 .cse2) (< c_main_~i~0 (+ 2 .cse3)) (<= .cse4 .cse5) (<= 1431655765 .cse6) (<= .cse4 .cse2) (<= .cse7 0) (<= .cse4 0) (<= .cse1 .cse5) (<= .cse1 0) (<= 2 .cse0) (<= .cse4 .cse8) (<= (+ 4294967295 .cse3) 0) (<= .cse7 .cse2) (<= .cse1 .cse8) (<= 1431655765 .cse9) (<= .cse7 .cse5) (<= .cse7 .cse8) (<= 1431655765 .cse10)))))) (= c_main_~l~0 .cse14) (< 1 c_main_~i~0)) (and (= 0 .cse14) (= c_main_~l~0 0)))) (< .cse15 (mod c_main_~n~0 4294967296)) (= c_main_~j~0 0) (= (mod (mod .cse15 3) 4294967296) 0) (= c_main_~k~0 0))) is different from false [2022-03-20 13:22:30,744 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse16 (mod (+ 4294967295 c_main_~l~0) 4294967296))) (and (let ((.cse15 (+ (- 1) c_main_~i~0)) (.cse14 (+ (- 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 ((.cse12 (* aux_div_v_it_1_42 (- 4294967296))) (.cse13 (* aux_div_aux_mod_aux_mod_v_it_1_42_25_45 (- 4294967296)))) (let ((.cse6 (div (+ .cse13 (- 4294967296)) 3)) (.cse10 (div (+ .cse12 .cse13 (- 4294967295)) 3)) (.cse9 (div (+ (- 2) .cse12) 3)) (.cse11 (* (- 1) c_main_~i~0)) (.cse0 (* aux_div_aux_mod_aux_mod_v_it_1_42_25_45 4294967296)) (.cse3 (* aux_div_v_it_1_42 4294967296))) (let ((.cse4 (div (+ .cse11 2 .cse0 .cse3) (- 3))) (.cse2 (+ .cse9 1)) (.cse1 (div (+ .cse0 (- 4294967295)) (- 3))) (.cse5 (+ .cse10 1)) (.cse7 (div (+ .cse11 .cse3 1) (- 3))) (.cse8 (+ .cse6 1))) (or (<= (+ .cse0 4294967296) 0) (<= .cse1 .cse2) (< c_main_~i~0 (+ 2 .cse3)) (<= .cse4 .cse5) (<= 1431655765 .cse6) (<= .cse4 .cse2) (<= .cse7 0) (<= .cse4 0) (<= .cse1 .cse5) (<= .cse1 0) (<= 2 .cse0) (<= .cse4 .cse8) (<= (+ 4294967295 .cse3) 0) (<= .cse7 .cse2) (<= .cse1 .cse8) (<= 1431655765 .cse9) (<= .cse7 .cse5) (<= .cse7 .cse8) (<= 1431655765 .cse10)))))) (= .cse14 .cse15) (< 1 c_main_~i~0)) (and (= 0 .cse15) (= .cse14 0)))) (= (mod (mod .cse16 3) 4294967296) 0) (< .cse16 (mod c_main_~n~0 4294967296)) (= c_main_~j~0 0) (= c_main_~k~0 0))) is different from false [2022-03-20 13:22:30,755 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:22:30,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1829164180] [2022-03-20 13:22:30,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1829164180] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:22:30,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:22:30,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-20 13:22:30,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457998588] [2022-03-20 13:22:30,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:22:30,756 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-20 13:22:30,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:22:30,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-20 13:22:30,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=54, Unknown=2, NotChecked=30, Total=110 [2022-03-20 13:22:30,757 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 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 13:22:30,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:22:30,906 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-03-20 13:22:30,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 13:22:30,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 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 13:22:30,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:22:30,907 INFO L225 Difference]: With dead ends: 26 [2022-03-20 13:22:30,907 INFO L226 Difference]: Without dead ends: 21 [2022-03-20 13:22:30,908 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=39, Invalid=99, Unknown=2, NotChecked=42, Total=182 [2022-03-20 13:22:30,908 INFO L913 BasicCegarLoop]: 14 mSDtfsCounter, 9 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 13:22:30,909 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 47 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 31 Unchecked, 0.0s Time] [2022-03-20 13:22:30,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-03-20 13:22:30,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2022-03-20 13:22:30,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 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 13:22:30,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-03-20 13:22:30,914 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 15 [2022-03-20 13:22:30,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:22:30,914 INFO L478 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-03-20 13:22:30,915 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 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 13:22:30,915 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-03-20 13:22:30,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-03-20 13:22:30,915 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:22:30,915 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:22:30,915 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 13:22:30,915 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:22:30,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:22:30,916 INFO L85 PathProgramCache]: Analyzing trace with hash 2042434564, now seen corresponding path program 1 times [2022-03-20 13:22:30,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:22:30,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1770616050] [2022-03-20 13:23:49,391 WARN L232 SmtUtils]: Spent 1.31m on a formula simplification. DAG size of input: 69 DAG size of output: 37 (called from [L 564] de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.jordan.JordanLoopAcceleration.buildAccelerationFormula) [2022-03-20 13:23:49,395 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-03-20 13:23:49,396 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 13:23:49,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1784012329, now seen corresponding path program 1 times [2022-03-20 13:23:49,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:23:49,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519719637] [2022-03-20 13:23:49,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:23:49,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:23:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:23:49,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:23:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:23:49,681 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 13:23:49,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:23:49,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519719637] [2022-03-20 13:23:49,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519719637] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:23:49,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:23:49,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-20 13:23:49,724 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:23:49,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1770616050] [2022-03-20 13:23:49,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1770616050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:23:49,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:23:49,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-20 13:23:49,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400309399] [2022-03-20 13:23:49,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:23:49,725 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-20 13:23:49,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:23:49,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-20 13:23:49,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-03-20 13:23:49,726 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 10 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 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 13:23:51,843 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 13:23:54,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:23:56,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:23:58,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:23:58,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:23:58,695 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2022-03-20 13:23:58,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 13:23:58,696 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-03-20 13:23:58,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:23:58,696 INFO L225 Difference]: With dead ends: 29 [2022-03-20 13:23:58,696 INFO L226 Difference]: Without dead ends: 20 [2022-03-20 13:23:58,696 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-03-20 13:23:58,697 INFO L913 BasicCegarLoop]: 15 mSDtfsCounter, 30 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-03-20 13:23:58,697 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 38 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 4 Unknown, 0 Unchecked, 8.9s Time] [2022-03-20 13:23:58,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-03-20 13:23:58,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-03-20 13:23:58,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 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 13:23:58,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-03-20 13:23:58,703 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 16 [2022-03-20 13:23:58,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:23:58,703 INFO L478 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-03-20 13:23:58,703 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 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 13:23:58,703 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-03-20 13:23:58,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-03-20 13:23:58,703 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:23:58,704 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:23:58,704 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 13:23:58,704 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:23:58,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:23:58,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1074063787, now seen corresponding path program 2 times [2022-03-20 13:23:58,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:23:58,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1189080474] [2022-03-20 13:25:42,053 WARN L232 SmtUtils]: Spent 1.72m on a formula simplification. DAG size of input: 93 DAG size of output: 30 (called from [L 564] de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.jordan.JordanLoopAcceleration.buildAccelerationFormula) [2022-03-20 13:25:42,053 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-03-20 13:25:42,054 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 13:25:42,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1724906985, now seen corresponding path program 1 times [2022-03-20 13:25:42,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:25:42,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301718087] [2022-03-20 13:25:42,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:25:42,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:25:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:25:42,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:25:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:25:42,264 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 13:25:42,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:25:42,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301718087] [2022-03-20 13:25:42,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301718087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:25:42,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:25:42,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 13:25:53,353 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:25:53,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1189080474] [2022-03-20 13:25:53,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1189080474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:25:53,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:25:53,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-20 13:25:53,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831022586] [2022-03-20 13:25:53,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:25:53,353 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-20 13:25:53,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:25:53,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-20 13:25:53,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=97, Unknown=3, NotChecked=0, Total=132 [2022-03-20 13:25:53,354 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 9 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 13:25:55,527 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 13:25:55,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:25:55,782 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2022-03-20 13:25:55,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 13:25:55,782 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.4) internal successors, (14), 9 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 13:25:55,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:25:55,783 INFO L225 Difference]: With dead ends: 30 [2022-03-20 13:25:55,783 INFO L226 Difference]: Without dead ends: 21 [2022-03-20 13:25:55,783 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=66, Invalid=203, Unknown=3, NotChecked=0, Total=272 [2022-03-20 13:25:55,784 INFO L913 BasicCegarLoop]: 13 mSDtfsCounter, 13 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 13:25:55,784 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 49 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 13:25:55,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-03-20 13:25:55,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-03-20 13:25:55,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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 13:25:55,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-03-20 13:25:55,789 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 18 [2022-03-20 13:25:55,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:25:55,789 INFO L478 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-03-20 13:25:55,789 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.4) internal successors, (14), 9 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 13:25:55,789 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-03-20 13:25:55,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-20 13:25:55,790 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:25:55,790 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:25:55,790 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 13:25:55,790 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:25:55,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:25:55,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1013814982, now seen corresponding path program 1 times [2022-03-20 13:25:55,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:25:55,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [433640418] [2022-03-20 13:27:29,353 WARN L232 SmtUtils]: Spent 1.56m on a formula simplification. DAG size of input: 72 DAG size of output: 39 (called from [L 564] de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.jordan.JordanLoopAcceleration.buildAccelerationFormula) [2022-03-20 13:27:29,354 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-03-20 13:28:44,997 WARN L232 SmtUtils]: Spent 1.26m on a formula simplification. DAG size of input: 93 DAG size of output: 90 (called from [L 564] de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.jordan.JordanLoopAcceleration.buildAccelerationFormula) [2022-03-20 13:28:44,998 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 13:28:44,998 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 13:28:44,999 INFO L85 PathProgramCache]: Analyzing trace with hash -881622154, now seen corresponding path program 1 times [2022-03-20 13:28:44,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:28:44,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734000884] [2022-03-20 13:28:44,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:28:44,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:28:45,006 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_v_it_5_42.0) (* (- 1) main_~l~0_9)) (- 3)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) (- 4294967296)) 3)) (- 1)) 0) [2022-03-20 13:28:45,006 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) (- 4294967295)) (- 3)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) (- 4294967296)) 3)) (- 1)) 0) [2022-03-20 13:28:45,006 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) (- 4294967295)) (- 3)) 0) [2022-03-20 13:28:45,006 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_v_it_5_42.0) (* (- 1) main_~l~0_9)) (- 3)) (* (- 1) (div (+ main_~l~0_7 (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) (* (- 4294967296) .aux_div_v_it_5_42.0) (- 4294967295)) 3)) (- 1)) 0) [2022-03-20 13:28:45,006 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) (- 4294967295)) (- 3)) (* (- 1) (div (+ main_~l~0_7 (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) (* (- 4294967296) .aux_div_v_it_5_42.0) (- 4294967295)) 3)) (- 1)) 0) [2022-03-20 13:28:45,007 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_7 (* (- 4294967296) .aux_div_v_it_5_42.0) (- 2)) 3)) 1431655765) 0) [2022-03-20 13:28:45,007 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_5_42.0) (* (- 1) main_~l~0_9) 1) 0)) [2022-03-20 13:28:45,007 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) (- 4294967295)) (- 3)) (* (- 1) (div (+ main_~l~0_7 (* (- 4294967296) .aux_div_v_it_5_42.0) (- 2)) 3)) (- 1)) 0) [2022-03-20 13:28:45,013 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) 4294967296) 0) [2022-03-20 13:28:45,014 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) (* 4294967296 .aux_div_v_it_5_42.0) (* (- 1) main_~l~0_9) 1) (- 3)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) (- 4294967296)) 3)) (- 1)) 0) [2022-03-20 13:28:45,015 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_v_it_5_42.0) (* (- 1) main_~l~0_7) 4294967295) 0) [2022-03-20 13:28:45,015 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) (* 4294967296 .aux_div_v_it_5_42.0) (* (- 1) main_~l~0_9) 1) (- 3)) (* (- 1) (div (+ main_~l~0_7 (* (- 4294967296) .aux_div_v_it_5_42.0) (- 2)) 3)) (- 1)) 0) [2022-03-20 13:28:45,015 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_v_it_5_42.0) (* (- 1) main_~l~0_9)) (- 3)) (* (- 1) (div (+ main_~l~0_7 (* (- 4294967296) .aux_div_v_it_5_42.0) (- 2)) 3)) (- 1)) 0) [2022-03-20 13:28:45,015 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) (* 4294967296 .aux_div_v_it_5_42.0) (* (- 1) main_~l~0_9) 1) (- 3)) (* (- 1) (div (+ main_~l~0_7 (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) (* (- 4294967296) .aux_div_v_it_5_42.0) (- 4294967295)) 3)) (- 1)) 0) [2022-03-20 13:28:45,015 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) (* 4294967296 .aux_div_v_it_5_42.0) (* (- 1) main_~l~0_9) 1) (- 3)) 0) [2022-03-20 13:28:45,015 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* 4294967296 .aux_div_v_it_5_42.0) (* (- 1) main_~l~0_9)) (- 3)) 0) [2022-03-20 13:28:45,015 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) 2) 0) [2022-03-20 13:28:45,015 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_7 (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) (* (- 4294967296) .aux_div_v_it_5_42.0) (- 4294967295)) 3)) 1431655765) 0) [2022-03-20 13:28:45,015 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.1) (- 4294967296)) 3)) 1431655765) 0) [2022-03-20 13:28:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:28:45,061 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_v_it_5_42.3) (* (- 1) main_~l~0_9)) (- 3)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) (- 4294967296)) 3)) (- 1)) 0) [2022-03-20 13:28:45,062 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) (- 4294967295)) (- 3)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) (- 4294967296)) 3)) (- 1)) 0) [2022-03-20 13:28:45,062 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) (- 4294967295)) (- 3)) 0) [2022-03-20 13:28:45,062 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_v_it_5_42.3) (* (- 1) main_~l~0_9)) (- 3)) (* (- 1) (div (+ main_~l~0_7 (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) (* (- 4294967296) .aux_div_v_it_5_42.3) (- 4294967295)) 3)) (- 1)) 0) [2022-03-20 13:28:45,062 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) (- 4294967295)) (- 3)) (* (- 1) (div (+ main_~l~0_7 (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) (* (- 4294967296) .aux_div_v_it_5_42.3) (- 4294967295)) 3)) (- 1)) 0) [2022-03-20 13:28:45,062 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_7 (* (- 4294967296) .aux_div_v_it_5_42.3) (- 2)) 3)) 1431655765) 0) [2022-03-20 13:28:45,062 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_5_42.3) (* (- 1) main_~l~0_9) 1) 0)) [2022-03-20 13:28:45,062 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) (- 4294967295)) (- 3)) (* (- 1) (div (+ main_~l~0_7 (* (- 4294967296) .aux_div_v_it_5_42.3) (- 2)) 3)) (- 1)) 0) [2022-03-20 13:28:45,063 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) 4294967296) 0) [2022-03-20 13:28:45,063 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) (* 4294967296 .aux_div_v_it_5_42.3) (* (- 1) main_~l~0_9) 1) (- 3)) (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) (- 4294967296)) 3)) (- 1)) 0) [2022-03-20 13:28:45,063 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* 4294967296 .aux_div_v_it_5_42.3) (* (- 1) main_~l~0_7) 4294967295) 0) [2022-03-20 13:28:45,063 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) (* 4294967296 .aux_div_v_it_5_42.3) (* (- 1) main_~l~0_9) 1) (- 3)) (* (- 1) (div (+ main_~l~0_7 (* (- 4294967296) .aux_div_v_it_5_42.3) (- 2)) 3)) (- 1)) 0) [2022-03-20 13:28:45,063 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_v_it_5_42.3) (* (- 1) main_~l~0_9)) (- 3)) (* (- 1) (div (+ main_~l~0_7 (* (- 4294967296) .aux_div_v_it_5_42.3) (- 2)) 3)) (- 1)) 0) [2022-03-20 13:28:45,063 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) (* 4294967296 .aux_div_v_it_5_42.3) (* (- 1) main_~l~0_9) 1) (- 3)) (* (- 1) (div (+ main_~l~0_7 (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) (* (- 4294967296) .aux_div_v_it_5_42.3) (- 4294967295)) 3)) (- 1)) 0) [2022-03-20 13:28:45,063 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* 4294967296 .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) (* 4294967296 .aux_div_v_it_5_42.3) (* (- 1) main_~l~0_9) 1) (- 3)) 0) [2022-03-20 13:28:45,063 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (div (+ (* 4294967296 .aux_div_v_it_5_42.3) (* (- 1) main_~l~0_9)) (- 3)) 0) [2022-03-20 13:28:45,063 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) 2) 0) [2022-03-20 13:28:45,063 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ main_~l~0_7 (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) (* (- 4294967296) .aux_div_v_it_5_42.3) (- 4294967295)) 3)) 1431655765) 0) [2022-03-20 13:28:45,064 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 1) (div (+ (* (- 4294967296) .aux_div_aux_mod_aux_mod_v_it_5_42_25_45.4) (- 4294967296)) 3)) 1431655765) 0) [2022-03-20 13:28:45,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:28:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:28:45,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:28:45,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:28:45,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734000884] [2022-03-20 13:28:45,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734000884] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:28:45,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208621123] [2022-03-20 13:28:45,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:28:45,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:28:45,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:28:45,411 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:28:45,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process