/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/concurrent/pthreads/pthreadMutex01-safe.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c1f4b5c [2019-12-17 10:50:01,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-17 10:50:01,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-17 10:50:01,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-17 10:50:01,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-17 10:50:01,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-17 10:50:01,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-17 10:50:01,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-17 10:50:01,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-17 10:50:01,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-17 10:50:01,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-17 10:50:01,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-17 10:50:01,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-17 10:50:01,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-17 10:50:01,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-17 10:50:01,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-17 10:50:01,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-17 10:50:01,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-17 10:50:01,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-17 10:50:01,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-17 10:50:01,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-17 10:50:01,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-17 10:50:01,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-17 10:50:01,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-17 10:50:01,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-17 10:50:01,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-17 10:50:01,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-17 10:50:01,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-17 10:50:01,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-17 10:50:02,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-17 10:50:02,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-17 10:50:02,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-17 10:50:02,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-17 10:50:02,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-17 10:50:02,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-17 10:50:02,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-17 10:50:02,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-17 10:50:02,027 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-17 10:50:02,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-17 10:50:02,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-17 10:50:02,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-17 10:50:02,029 INFO L138 SettingsManager]: * Use SBE=true [2019-12-17 10:50:02,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-17 10:50:02,030 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-17 10:50:02,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-17 10:50:02,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-17 10:50:02,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-17 10:50:02,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-17 10:50:02,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-17 10:50:02,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-17 10:50:02,031 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-17 10:50:02,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-17 10:50:02,031 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-17 10:50:02,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-17 10:50:02,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-17 10:50:02,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-17 10:50:02,032 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-17 10:50:02,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-17 10:50:02,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-17 10:50:02,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-17 10:50:02,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-17 10:50:02,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-17 10:50:02,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-17 10:50:02,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-17 10:50:02,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-17 10:50:02,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-17 10:50:02,034 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-17 10:50:02,314 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-17 10:50:02,333 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-17 10:50:02,336 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-17 10:50:02,338 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-17 10:50:02,338 INFO L275 PluginConnector]: CDTParser initialized [2019-12-17 10:50:02,339 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/pthreadMutex01-safe.c [2019-12-17 10:50:02,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f635e8ab2/018be74ec526489cb45595b8b67158d7/FLAG4a8bef997 [2019-12-17 10:50:02,873 INFO L306 CDTParser]: Found 1 translation units. [2019-12-17 10:50:02,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/pthreadMutex01-safe.c [2019-12-17 10:50:02,874 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2019-12-17 10:50:02,874 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2019-12-17 10:50:02,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f635e8ab2/018be74ec526489cb45595b8b67158d7/FLAG4a8bef997 [2019-12-17 10:50:03,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f635e8ab2/018be74ec526489cb45595b8b67158d7 [2019-12-17 10:50:03,263 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-17 10:50:03,265 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-17 10:50:03,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-17 10:50:03,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-17 10:50:03,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-17 10:50:03,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:50:03" (1/1) ... [2019-12-17 10:50:03,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b0e7abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:03, skipping insertion in model container [2019-12-17 10:50:03,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:50:03" (1/1) ... [2019-12-17 10:50:03,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-17 10:50:03,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-17 10:50:03,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-17 10:50:03,582 INFO L203 MainTranslator]: Completed pre-run [2019-12-17 10:50:03,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-17 10:50:03,613 INFO L208 MainTranslator]: Completed translation [2019-12-17 10:50:03,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:03 WrapperNode [2019-12-17 10:50:03,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-17 10:50:03,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-17 10:50:03,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-17 10:50:03,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-17 10:50:03,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:03" (1/1) ... [2019-12-17 10:50:03,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:03" (1/1) ... [2019-12-17 10:50:03,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-17 10:50:03,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-17 10:50:03,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-17 10:50:03,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-17 10:50:03,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:03" (1/1) ... [2019-12-17 10:50:03,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:03" (1/1) ... [2019-12-17 10:50:03,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:03" (1/1) ... [2019-12-17 10:50:03,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:03" (1/1) ... [2019-12-17 10:50:03,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:03" (1/1) ... [2019-12-17 10:50:03,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:03" (1/1) ... [2019-12-17 10:50:03,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:03" (1/1) ... [2019-12-17 10:50:03,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-17 10:50:03,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-17 10:50:03,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-17 10:50:03,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-17 10:50:03,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-17 10:50:03,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-17 10:50:03,719 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-12-17 10:50:03,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-17 10:50:03,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-17 10:50:03,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-17 10:50:03,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-17 10:50:03,886 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-17 10:50:03,887 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-17 10:50:03,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:50:03 BoogieIcfgContainer [2019-12-17 10:50:03,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-17 10:50:03,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-17 10:50:03,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-17 10:50:03,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-17 10:50:03,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 10:50:03" (1/3) ... [2019-12-17 10:50:03,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52375982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:50:03, skipping insertion in model container [2019-12-17 10:50:03,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:03" (2/3) ... [2019-12-17 10:50:03,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52375982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:50:03, skipping insertion in model container [2019-12-17 10:50:03,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:50:03" (3/3) ... [2019-12-17 10:50:03,895 INFO L109 eAbstractionObserver]: Analyzing ICFG pthreadMutex01-safe.c [2019-12-17 10:50:03,905 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-17 10:50:03,912 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-17 10:50:03,924 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-17 10:50:03,944 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-17 10:50:03,944 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-17 10:50:03,944 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-17 10:50:03,944 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-17 10:50:03,944 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-17 10:50:03,944 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-17 10:50:03,945 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-17 10:50:03,945 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-17 10:50:03,956 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-12-17 10:50:03,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-17 10:50:03,962 INFO L403 BasicCegarLoop]: Found error trace [2019-12-17 10:50:03,963 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-17 10:50:03,963 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2019-12-17 10:50:03,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-17 10:50:03,969 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-12-17 10:50:03,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-17 10:50:03,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809170582] [2019-12-17 10:50:03,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-17 10:50:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-17 10:50:04,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-17 10:50:04,124 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809170582] [2019-12-17 10:50:04,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-17 10:50:04,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-17 10:50:04,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945796042] [2019-12-17 10:50:04,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-17 10:50:04,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-17 10:50:04,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-17 10:50:04,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-17 10:50:04,170 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2019-12-17 10:50:04,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-17 10:50:04,208 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-12-17 10:50:04,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-17 10:50:04,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-17 10:50:04,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-17 10:50:04,241 INFO L225 Difference]: With dead ends: 14 [2019-12-17 10:50:04,241 INFO L226 Difference]: Without dead ends: 6 [2019-12-17 10:50:04,248 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-17 10:50:04,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-12-17 10:50:04,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-12-17 10:50:04,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-17 10:50:04,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2019-12-17 10:50:04,276 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 4 [2019-12-17 10:50:04,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-17 10:50:04,276 INFO L462 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2019-12-17 10:50:04,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-17 10:50:04,277 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2019-12-17 10:50:04,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-17 10:50:04,277 INFO L403 BasicCegarLoop]: Found error trace [2019-12-17 10:50:04,277 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-17 10:50:04,278 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2019-12-17 10:50:04,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-17 10:50:04,278 INFO L82 PathProgramCache]: Analyzing trace with hash 28697735, now seen corresponding path program 1 times [2019-12-17 10:50:04,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-17 10:50:04,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080228923] [2019-12-17 10:50:04,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-17 10:50:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-17 10:50:04,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-17 10:50:04,341 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080228923] [2019-12-17 10:50:04,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-17 10:50:04,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-17 10:50:04,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291791472] [2019-12-17 10:50:04,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-17 10:50:04,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-17 10:50:04,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-17 10:50:04,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-17 10:50:04,346 INFO L87 Difference]: Start difference. First operand 6 states and 5 transitions. Second operand 3 states. [2019-12-17 10:50:04,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-17 10:50:04,352 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-12-17 10:50:04,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-17 10:50:04,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-17 10:50:04,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-17 10:50:04,353 INFO L225 Difference]: With dead ends: 6 [2019-12-17 10:50:04,353 INFO L226 Difference]: Without dead ends: 0 [2019-12-17 10:50:04,354 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-17 10:50:04,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-17 10:50:04,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-17 10:50:04,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-17 10:50:04,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-17 10:50:04,356 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-12-17 10:50:04,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-17 10:50:04,356 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-17 10:50:04,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-17 10:50:04,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-17 10:50:04,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-17 10:50:04,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-17 10:50:04,369 INFO L250 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-17 10:50:04,369 INFO L250 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-17 10:50:04,370 INFO L250 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-17 10:50:04,370 INFO L250 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-17 10:50:04,370 INFO L250 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 43) no Hoare annotation was computed. [2019-12-17 10:50:04,370 INFO L250 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONASSERT(line 47) no Hoare annotation was computed. [2019-12-17 10:50:04,371 INFO L246 CegarLoopResult]: At program point L49(lines 38 50) the Hoare annotation is: false [2019-12-17 10:50:04,371 INFO L250 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2019-12-17 10:50:04,371 INFO L250 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2019-12-17 10:50:04,371 INFO L250 CegarLoopResult]: For program point L42(lines 42 44) no Hoare annotation was computed. [2019-12-17 10:50:04,372 INFO L250 CegarLoopResult]: For program point L42-2(lines 42 44) no Hoare annotation was computed. [2019-12-17 10:50:04,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 10:50:04 BoogieIcfgContainer [2019-12-17 10:50:04,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-17 10:50:04,383 INFO L168 Benchmark]: Toolchain (without parser) took 1117.60 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 101.3 MB in the beginning and 139.8 MB in the end (delta: -38.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2019-12-17 10:50:04,384 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-17 10:50:04,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.14 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 101.1 MB in the beginning and 179.6 MB in the end (delta: -78.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. [2019-12-17 10:50:04,386 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.48 ms. Allocated memory is still 202.9 MB. Free memory was 179.6 MB in the beginning and 178.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-17 10:50:04,387 INFO L168 Benchmark]: Boogie Preprocessor took 20.56 ms. Allocated memory is still 202.9 MB. Free memory was 178.3 MB in the beginning and 176.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-17 10:50:04,388 INFO L168 Benchmark]: RCFGBuilder took 218.47 ms. Allocated memory is still 202.9 MB. Free memory was 176.9 MB in the beginning and 165.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-12-17 10:50:04,389 INFO L168 Benchmark]: TraceAbstraction took 491.78 ms. Allocated memory is still 202.9 MB. Free memory was 165.1 MB in the beginning and 139.8 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-12-17 10:50:04,394 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 344.14 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 101.1 MB in the beginning and 179.6 MB in the end (delta: -78.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 34.48 ms. Allocated memory is still 202.9 MB. Free memory was 179.6 MB in the beginning and 178.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.56 ms. Allocated memory is still 202.9 MB. Free memory was 178.3 MB in the beginning and 176.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 218.47 ms. Allocated memory is still 202.9 MB. Free memory was 176.9 MB in the beginning and 165.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 491.78 ms. Allocated memory is still 202.9 MB. Free memory was 165.1 MB in the beginning and 139.8 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 47]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 2 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 79 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...