/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops/matrix-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-08 03:35:09,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-08 03:35:09,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-08 03:35:09,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-08 03:35:09,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-08 03:35:09,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-08 03:35:09,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-08 03:35:09,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-08 03:35:09,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-08 03:35:09,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-08 03:35:09,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-08 03:35:09,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-08 03:35:09,928 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-08 03:35:09,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-08 03:35:09,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-08 03:35:09,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-08 03:35:09,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-08 03:35:09,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-08 03:35:09,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-08 03:35:09,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-08 03:35:09,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-08 03:35:09,949 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-08 03:35:09,961 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-08 03:35:09,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-08 03:35:09,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-08 03:35:09,962 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-08 03:35:09,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-08 03:35:09,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-08 03:35:09,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-08 03:35:09,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-08 03:35:09,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-08 03:35:09,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-08 03:35:09,964 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-08 03:35:09,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-08 03:35:09,964 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-08 03:35:09,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-08 03:35:09,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-08 03:35:09,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-08 03:35:09,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-08 03:35:09,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-08 03:35:09,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 03:35:09,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-08 03:35:09,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-08 03:35:09,965 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-08 03:35:09,965 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-08 03:35:09,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-08 03:35:09,965 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-08 03:35:09,965 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-08 03:35:10,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-08 03:35:10,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-08 03:35:10,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-08 03:35:10,284 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-08 03:35:10,285 INFO L275 PluginConnector]: CDTParser initialized [2022-04-08 03:35:10,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix-2.c [2022-04-08 03:35:10,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9bbb1e7f/c7098110139942e5bcf6335dcf227253/FLAG15d085f4b [2022-04-08 03:35:10,842 INFO L306 CDTParser]: Found 1 translation units. [2022-04-08 03:35:10,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/matrix-2.c [2022-04-08 03:35:10,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9bbb1e7f/c7098110139942e5bcf6335dcf227253/FLAG15d085f4b [2022-04-08 03:35:11,232 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9bbb1e7f/c7098110139942e5bcf6335dcf227253 [2022-04-08 03:35:11,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-08 03:35:11,236 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-08 03:35:11,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-08 03:35:11,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-08 03:35:11,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-08 03:35:11,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 03:35:11" (1/1) ... [2022-04-08 03:35:11,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d1bb18b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:11, skipping insertion in model container [2022-04-08 03:35:11,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 03:35:11" (1/1) ... [2022-04-08 03:35:11,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-08 03:35:11,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-08 03:35:11,454 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/matrix-2.c[320,333] [2022-04-08 03:35:11,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 03:35:11,496 INFO L203 MainTranslator]: Completed pre-run [2022-04-08 03:35:11,506 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/matrix-2.c[320,333] [2022-04-08 03:35:11,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 03:35:11,528 INFO L208 MainTranslator]: Completed translation [2022-04-08 03:35:11,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:11 WrapperNode [2022-04-08 03:35:11,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-08 03:35:11,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-08 03:35:11,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-08 03:35:11,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-08 03:35:11,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:11" (1/1) ... [2022-04-08 03:35:11,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:11" (1/1) ... [2022-04-08 03:35:11,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:11" (1/1) ... [2022-04-08 03:35:11,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:11" (1/1) ... [2022-04-08 03:35:11,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:11" (1/1) ... [2022-04-08 03:35:11,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:11" (1/1) ... [2022-04-08 03:35:11,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:11" (1/1) ... [2022-04-08 03:35:11,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-08 03:35:11,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-08 03:35:11,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-08 03:35:11,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-08 03:35:11,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:11" (1/1) ... [2022-04-08 03:35:11,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 03:35:11,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 03:35:11,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-08 03:35:11,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-08 03:35:11,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-08 03:35:11,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-08 03:35:11,675 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-08 03:35:11,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-08 03:35:11,675 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-08 03:35:11,675 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-08 03:35:11,676 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-08 03:35:11,676 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-08 03:35:11,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-08 03:35:11,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-08 03:35:11,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-04-08 03:35:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-08 03:35:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-08 03:35:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-08 03:35:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-08 03:35:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-08 03:35:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-08 03:35:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-08 03:35:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-08 03:35:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-08 03:35:11,773 INFO L234 CfgBuilder]: Building ICFG [2022-04-08 03:35:11,775 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-08 03:35:12,122 INFO L275 CfgBuilder]: Performing block encoding [2022-04-08 03:35:12,129 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-08 03:35:12,129 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-04-08 03:35:12,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 03:35:12 BoogieIcfgContainer [2022-04-08 03:35:12,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-08 03:35:12,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-08 03:35:12,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-08 03:35:12,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-08 03:35:12,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.04 03:35:11" (1/3) ... [2022-04-08 03:35:12,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299dc7c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 03:35:12, skipping insertion in model container [2022-04-08 03:35:12,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:11" (2/3) ... [2022-04-08 03:35:12,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299dc7c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 03:35:12, skipping insertion in model container [2022-04-08 03:35:12,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 03:35:12" (3/3) ... [2022-04-08 03:35:12,147 INFO L111 eAbstractionObserver]: Analyzing ICFG matrix-2.c [2022-04-08 03:35:12,153 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-08 03:35:12,154 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-08 03:35:12,209 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-08 03:35:12,218 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-08 03:35:12,218 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-08 03:35:12,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 22 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 03:35:12,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-08 03:35:12,256 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 03:35:12,256 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 03:35:12,257 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 03:35:12,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 03:35:12,262 INFO L85 PathProgramCache]: Analyzing trace with hash -691068696, now seen corresponding path program 1 times [2022-04-08 03:35:12,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 03:35:12,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1732067287] [2022-04-08 03:35:12,284 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 03:35:12,285 INFO L85 PathProgramCache]: Analyzing trace with hash -691068696, now seen corresponding path program 2 times [2022-04-08 03:35:12,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 03:35:12,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139994141] [2022-04-08 03:35:12,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 03:35:12,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 03:35:12,384 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 03:35:12,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1779674403] [2022-04-08 03:35:12,385 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-08 03:35:12,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 03:35:12,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 03:35:12,388 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 03:35:12,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-08 03:35:12,479 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-04-08 03:35:12,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 03:35:12,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2022-04-08 03:35:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:35:12,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 03:35:12,718 INFO L272 TraceCheckUtils]: 0: Hoare triple {32#true} call ULTIMATE.init(); {32#true} is VALID [2022-04-08 03:35:12,719 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); {32#true} is VALID [2022-04-08 03:35:12,719 INFO L290 TraceCheckUtils]: 2: Hoare triple {32#true} assume true; {32#true} is VALID [2022-04-08 03:35:12,719 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {32#true} {32#true} #82#return; {32#true} is VALID [2022-04-08 03:35:12,720 INFO L272 TraceCheckUtils]: 4: Hoare triple {32#true} call #t~ret15 := main(); {32#true} is VALID [2022-04-08 03:35:12,736 INFO L290 TraceCheckUtils]: 5: Hoare triple {32#true} ~N_LIN~0 := #t~nondet4;havoc #t~nondet4;~N_COL~0 := #t~nondet5;havoc #t~nondet5;havoc ~j~0;havoc ~k~0;call ~#matriz~0.base, ~#matriz~0.offset := #Ultimate.allocOnStack(4 * (if ~N_LIN~0 % 4294967296 % 4294967296 <= 2147483647 then ~N_LIN~0 % 4294967296 % 4294967296 else ~N_LIN~0 % 4294967296 % 4294967296 - 4294967296) * (if ~N_COL~0 % 4294967296 % 4294967296 <= 2147483647 then ~N_COL~0 % 4294967296 % 4294967296 else ~N_COL~0 % 4294967296 % 4294967296 - 4294967296));havoc ~maior~0;assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647;~maior~0 := #t~nondet6;havoc #t~nondet6;~j~0 := 0; {52#(= main_~j~0 0)} is VALID [2022-04-08 03:35:12,737 INFO L290 TraceCheckUtils]: 6: Hoare triple {52#(= main_~j~0 0)} assume !(~j~0 % 4294967296 < ~N_COL~0 % 4294967296); {56#(not (< 0 (mod main_~N_COL~0 4294967296)))} is VALID [2022-04-08 03:35:12,738 INFO L290 TraceCheckUtils]: 7: Hoare triple {56#(not (< 0 (mod main_~N_COL~0 4294967296)))} ~j~0 := 0; {60#(and (= main_~j~0 0) (not (< 0 (mod main_~N_COL~0 4294967296))))} is VALID [2022-04-08 03:35:12,739 INFO L290 TraceCheckUtils]: 8: Hoare triple {60#(and (= main_~j~0 0) (not (< 0 (mod main_~N_COL~0 4294967296))))} assume !!(~j~0 % 4294967296 < ~N_COL~0 % 4294967296);~k~0 := 0; {33#false} is VALID [2022-04-08 03:35:12,739 INFO L290 TraceCheckUtils]: 9: Hoare triple {33#false} assume !!(~k~0 % 4294967296 < ~N_LIN~0 % 4294967296);call #t~mem14 := read~int(~#matriz~0.base, ~#matriz~0.offset + (if ~j~0 % 4294967296 % 4294967296 <= 2147483647 then ~j~0 % 4294967296 % 4294967296 else ~j~0 % 4294967296 % 4294967296 - 4294967296) * (4 * (if ~N_LIN~0 % 4294967296 % 4294967296 <= 2147483647 then ~N_LIN~0 % 4294967296 % 4294967296 else ~N_LIN~0 % 4294967296 % 4294967296 - 4294967296)) + 4 * (if ~k~0 % 4294967296 % 4294967296 <= 2147483647 then ~k~0 % 4294967296 % 4294967296 else ~k~0 % 4294967296 % 4294967296 - 4294967296), 4); {33#false} is VALID [2022-04-08 03:35:12,739 INFO L272 TraceCheckUtils]: 10: Hoare triple {33#false} call __VERIFIER_assert((if #t~mem14 < ~maior~0 then 1 else 0)); {33#false} is VALID [2022-04-08 03:35:12,740 INFO L290 TraceCheckUtils]: 11: Hoare triple {33#false} ~cond := #in~cond; {33#false} is VALID [2022-04-08 03:35:12,740 INFO L290 TraceCheckUtils]: 12: Hoare triple {33#false} assume 0 == ~cond; {33#false} is VALID [2022-04-08 03:35:12,740 INFO L290 TraceCheckUtils]: 13: Hoare triple {33#false} assume !false; {33#false} is VALID [2022-04-08 03:35:12,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 03:35:12,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-08 03:35:12,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 03:35:12,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139994141] [2022-04-08 03:35:12,743 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 03:35:12,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779674403] [2022-04-08 03:35:12,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779674403] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 03:35:12,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 03:35:12,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-08 03:35:12,747 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 03:35:12,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1732067287] [2022-04-08 03:35:12,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1732067287] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 03:35:12,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 03:35:12,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-08 03:35:12,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094224131] [2022-04-08 03:35:12,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 03:35:12,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-08 03:35:12,768 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 03:35:12,771 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-08 03:35:12,798 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:12,799 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-08 03:35:12,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 03:35:12,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-08 03:35:12,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-08 03:35:12,835 INFO L87 Difference]: Start difference. First operand has 29 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 22 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-08 03:35:13,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:13,142 INFO L93 Difference]: Finished difference Result 68 states and 100 transitions. [2022-04-08 03:35:13,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-08 03:35:13,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-08 03:35:13,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 03:35:13,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-08 03:35:13,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 100 transitions. [2022-04-08 03:35:13,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-08 03:35:13,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 100 transitions. [2022-04-08 03:35:13,170 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 100 transitions. [2022-04-08 03:35:13,287 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 100 edges. 100 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:13,297 INFO L225 Difference]: With dead ends: 68 [2022-04-08 03:35:13,297 INFO L226 Difference]: Without dead ends: 35 [2022-04-08 03:35:13,301 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-08 03:35:13,307 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 15 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 03:35:13,308 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 93 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 03:35:13,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-04-08 03:35:13,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 25. [2022-04-08 03:35:13,338 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 03:35:13,339 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand has 25 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 03:35:13,340 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand has 25 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 03:35:13,340 INFO L87 Difference]: Start difference. First operand 35 states. Second operand has 25 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 03:35:13,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:13,344 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2022-04-08 03:35:13,344 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2022-04-08 03:35:13,345 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:35:13,345 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:35:13,345 INFO L74 IsIncluded]: Start isIncluded. First operand has 25 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 35 states. [2022-04-08 03:35:13,346 INFO L87 Difference]: Start difference. First operand has 25 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 35 states. [2022-04-08 03:35:13,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:13,349 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2022-04-08 03:35:13,349 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2022-04-08 03:35:13,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:35:13,350 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:35:13,350 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 03:35:13,350 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 03:35:13,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 03:35:13,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2022-04-08 03:35:13,354 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 14 [2022-04-08 03:35:13,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 03:35:13,354 INFO L478 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2022-04-08 03:35:13,354 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-08 03:35:13,355 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 25 states and 29 transitions. [2022-04-08 03:35:13,382 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:13,382 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2022-04-08 03:35:13,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-08 03:35:13,383 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 03:35:13,383 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 03:35:13,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-08 03:35:13,606 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-04-08 03:35:13,607 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 03:35:13,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 03:35:13,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1002836895, now seen corresponding path program 1 times [2022-04-08 03:35:13,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 03:35:13,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1430042545] [2022-04-08 03:35:17,175 WARN L977 rdanLoopAcceleration]: Unable to prove correctness of quantifier elimination. [2022-04-08 03:35:17,537 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-04-08 03:35:17,540 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: free variables [v_main_~k~0_14, |v_main_#t~post7_4|] at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.(UnmodifiableTransFormula.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:324) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.PredicateHelper.normalizeTerm(PredicateHelper.java:201) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:254) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAcceleratedInterpolation.construct(IpTcStrategyModuleAcceleratedInterpolation.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:412) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-04-08 03:35:17,544 INFO L158 Benchmark]: Toolchain (without parser) took 6307.24ms. Allocated memory was 211.8MB in the beginning and 336.6MB in the end (delta: 124.8MB). Free memory was 160.1MB in the beginning and 269.4MB in the end (delta: -109.3MB). Peak memory consumption was 16.7MB. Max. memory is 8.0GB. [2022-04-08 03:35:17,544 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 211.8MB. Free memory is still 176.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-08 03:35:17,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.72ms. Allocated memory was 211.8MB in the beginning and 336.6MB in the end (delta: 124.8MB). Free memory was 159.9MB in the beginning and 311.7MB in the end (delta: -151.8MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. [2022-04-08 03:35:17,545 INFO L158 Benchmark]: Boogie Preprocessor took 34.05ms. Allocated memory is still 336.6MB. Free memory was 311.7MB in the beginning and 310.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-08 03:35:17,545 INFO L158 Benchmark]: RCFGBuilder took 566.49ms. Allocated memory is still 336.6MB. Free memory was 310.0MB in the beginning and 295.5MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-04-08 03:35:17,546 INFO L158 Benchmark]: TraceAbstraction took 5409.81ms. Allocated memory is still 336.6MB. Free memory was 295.0MB in the beginning and 269.4MB in the end (delta: 25.7MB). Peak memory consumption was 26.5MB. Max. memory is 8.0GB. [2022-04-08 03:35:17,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 211.8MB. Free memory is still 176.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 289.72ms. Allocated memory was 211.8MB in the beginning and 336.6MB in the end (delta: 124.8MB). Free memory was 159.9MB in the beginning and 311.7MB in the end (delta: -151.8MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.05ms. Allocated memory is still 336.6MB. Free memory was 311.7MB in the beginning and 310.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 566.49ms. Allocated memory is still 336.6MB. Free memory was 310.0MB in the beginning and 295.5MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 5409.81ms. Allocated memory is still 336.6MB. Free memory was 295.0MB in the beginning and 269.4MB in the end (delta: 25.7MB). Peak memory consumption was 26.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: free variables [v_main_~k~0_14, |v_main_#t~post7_4|] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: free variables [v_main_~k~0_14, |v_main_#t~post7_4|]: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.(UnmodifiableTransFormula.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-04-08 03:35:17,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...