/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/stateful_check.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:21:09,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:21:09,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:21:09,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:21:09,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:21:09,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:21:09,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:21:09,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:21:09,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:21:09,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:21:09,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:21:09,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:21:09,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:21:09,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:21:09,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:21:09,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:21:09,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:21:09,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:21:09,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:21:09,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:21:09,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:21:09,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:21:09,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:21:09,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:21:09,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:21:09,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:21:09,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:21:09,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:21:09,987 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:21:09,996 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:21:09,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:21:09,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:21:09,997 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:21:09,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:21:09,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:21:09,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:21:09,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:21:09,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:21:09,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:21:09,999 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:21:09,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:21:09,999 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:21:09,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:21:10,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:21:10,000 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:21:10,000 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:21:10,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:21:10,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:21:10,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:21:10,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:21:10,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:21:10,001 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:21:10,285 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:21:10,298 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:21:10,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:21:10,303 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:21:10,304 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:21:10,304 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/stateful_check.c [2020-07-18 00:21:10,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/819be7b2f/13e25f5c6808432fb0decba1307478eb/FLAG9c2471982 [2020-07-18 00:21:10,832 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:21:10,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/stateful_check.c [2020-07-18 00:21:10,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/819be7b2f/13e25f5c6808432fb0decba1307478eb/FLAG9c2471982 [2020-07-18 00:21:11,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/819be7b2f/13e25f5c6808432fb0decba1307478eb [2020-07-18 00:21:11,182 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:21:11,185 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:21:11,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:21:11,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:21:11,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:21:11,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:21:11" (1/1) ... [2020-07-18 00:21:11,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@454834c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:11, skipping insertion in model container [2020-07-18 00:21:11,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:21:11" (1/1) ... [2020-07-18 00:21:11,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:21:11,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:21:11,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:21:11,433 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:21:11,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:21:11,472 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:21:11,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:11 WrapperNode [2020-07-18 00:21:11,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:21:11,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:21:11,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:21:11,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:21:11,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:11" (1/1) ... [2020-07-18 00:21:11,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:11" (1/1) ... [2020-07-18 00:21:11,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:11" (1/1) ... [2020-07-18 00:21:11,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:11" (1/1) ... [2020-07-18 00:21:11,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:11" (1/1) ... [2020-07-18 00:21:11,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:11" (1/1) ... [2020-07-18 00:21:11,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:11" (1/1) ... [2020-07-18 00:21:11,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:21:11,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:21:11,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:21:11,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:21:11,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:11" (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 [2020-07-18 00:21:11,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:21:11,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:21:11,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-18 00:21:11,655 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-07-18 00:21:11,655 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-07-18 00:21:11,655 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2020-07-18 00:21:11,655 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2020-07-18 00:21:11,656 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2020-07-18 00:21:11,656 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2020-07-18 00:21:11,656 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2020-07-18 00:21:11,656 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2020-07-18 00:21:11,656 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:21:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:21:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-18 00:21:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 00:21:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-07-18 00:21:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-07-18 00:21:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2020-07-18 00:21:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2020-07-18 00:21:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2020-07-18 00:21:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2020-07-18 00:21:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2020-07-18 00:21:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2020-07-18 00:21:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:21:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:21:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:21:12,174 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:21:12,174 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-18 00:21:12,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:21:12 BoogieIcfgContainer [2020-07-18 00:21:12,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:21:12,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:21:12,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:21:12,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:21:12,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:21:11" (1/3) ... [2020-07-18 00:21:12,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34bf06a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:21:12, skipping insertion in model container [2020-07-18 00:21:12,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:11" (2/3) ... [2020-07-18 00:21:12,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34bf06a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:21:12, skipping insertion in model container [2020-07-18 00:21:12,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:21:12" (3/3) ... [2020-07-18 00:21:12,189 INFO L109 eAbstractionObserver]: Analyzing ICFG stateful_check.c [2020-07-18 00:21:12,201 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:21:12,209 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:21:12,224 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:21:12,247 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:21:12,248 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:21:12,248 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:21:12,248 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:21:12,248 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:21:12,249 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:21:12,249 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:21:12,249 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:21:12,268 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-07-18 00:21:12,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-18 00:21:12,280 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:21:12,281 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:21:12,281 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:21:12,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:21:12,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1008214113, now seen corresponding path program 1 times [2020-07-18 00:21:12,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:21:12,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682906942] [2020-07-18 00:21:12,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:21:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:21:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:21:12,501 INFO L280 TraceCheckUtils]: 0: Hoare triple {118#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {108#true} is VALID [2020-07-18 00:21:12,502 INFO L280 TraceCheckUtils]: 1: Hoare triple {108#true} ~open_called~0 := 0; {108#true} is VALID [2020-07-18 00:21:12,502 INFO L280 TraceCheckUtils]: 2: Hoare triple {108#true} assume true; {108#true} is VALID [2020-07-18 00:21:12,503 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {108#true} {108#true} #195#return; {108#true} is VALID [2020-07-18 00:21:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:21:12,537 INFO L280 TraceCheckUtils]: 0: Hoare triple {119#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {108#true} is VALID [2020-07-18 00:21:12,537 INFO L280 TraceCheckUtils]: 1: Hoare triple {108#true} #res := 0; {108#true} is VALID [2020-07-18 00:21:12,538 INFO L280 TraceCheckUtils]: 2: Hoare triple {108#true} assume true; {108#true} is VALID [2020-07-18 00:21:12,538 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {108#true} {108#true} #179#return; {108#true} is VALID [2020-07-18 00:21:12,540 INFO L263 TraceCheckUtils]: 0: Hoare triple {108#true} call ULTIMATE.init(); {118#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} is VALID [2020-07-18 00:21:12,541 INFO L280 TraceCheckUtils]: 1: Hoare triple {118#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {108#true} is VALID [2020-07-18 00:21:12,541 INFO L280 TraceCheckUtils]: 2: Hoare triple {108#true} ~open_called~0 := 0; {108#true} is VALID [2020-07-18 00:21:12,542 INFO L280 TraceCheckUtils]: 3: Hoare triple {108#true} assume true; {108#true} is VALID [2020-07-18 00:21:12,542 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {108#true} {108#true} #195#return; {108#true} is VALID [2020-07-18 00:21:12,543 INFO L263 TraceCheckUtils]: 5: Hoare triple {108#true} call #t~ret12 := main(); {108#true} is VALID [2020-07-18 00:21:12,543 INFO L280 TraceCheckUtils]: 6: Hoare triple {108#true} ~ldv_s_misc_fops_file_operations~0 := 0; {108#true} is VALID [2020-07-18 00:21:12,546 INFO L263 TraceCheckUtils]: 7: Hoare triple {108#true} call #t~ret1 := my_init(); {119#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-18 00:21:12,547 INFO L280 TraceCheckUtils]: 8: Hoare triple {119#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {108#true} is VALID [2020-07-18 00:21:12,548 INFO L280 TraceCheckUtils]: 9: Hoare triple {108#true} #res := 0; {108#true} is VALID [2020-07-18 00:21:12,549 INFO L280 TraceCheckUtils]: 10: Hoare triple {108#true} assume true; {108#true} is VALID [2020-07-18 00:21:12,549 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {108#true} {108#true} #179#return; {108#true} is VALID [2020-07-18 00:21:12,550 INFO L280 TraceCheckUtils]: 12: Hoare triple {108#true} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {108#true} is VALID [2020-07-18 00:21:12,552 INFO L280 TraceCheckUtils]: 13: Hoare triple {108#true} havoc #t~ret1; {108#true} is VALID [2020-07-18 00:21:12,554 INFO L280 TraceCheckUtils]: 14: Hoare triple {108#true} assume !true; {109#false} is VALID [2020-07-18 00:21:12,554 INFO L263 TraceCheckUtils]: 15: Hoare triple {109#false} call check_final_state(); {109#false} is VALID [2020-07-18 00:21:12,555 INFO L280 TraceCheckUtils]: 16: Hoare triple {109#false} assume !(1 == ~ldv_mutex~0); {109#false} is VALID [2020-07-18 00:21:12,555 INFO L263 TraceCheckUtils]: 17: Hoare triple {109#false} call __blast_assert(); {109#false} is VALID [2020-07-18 00:21:12,556 INFO L280 TraceCheckUtils]: 18: Hoare triple {109#false} assume !false; {109#false} is VALID [2020-07-18 00:21:12,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:21:12,563 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:21:12,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682906942] [2020-07-18 00:21:12,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:21:12,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-18 00:21:12,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29140349] [2020-07-18 00:21:12,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-07-18 00:21:12,577 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:21:12,581 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-18 00:21:12,622 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:21:12,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-18 00:21:12,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:21:12,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-18 00:21:12,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-18 00:21:12,632 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 4 states. [2020-07-18 00:21:13,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:21:13,333 INFO L93 Difference]: Finished difference Result 199 states and 244 transitions. [2020-07-18 00:21:13,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-18 00:21:13,334 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-07-18 00:21:13,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:21:13,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 00:21:13,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 244 transitions. [2020-07-18 00:21:13,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 00:21:13,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 244 transitions. [2020-07-18 00:21:13,379 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 244 transitions. [2020-07-18 00:21:13,692 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 244 edges. 244 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:21:13,733 INFO L225 Difference]: With dead ends: 199 [2020-07-18 00:21:13,733 INFO L226 Difference]: Without dead ends: 101 [2020-07-18 00:21:13,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-18 00:21:13,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-07-18 00:21:13,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2020-07-18 00:21:13,880 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:21:13,881 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 96 states. [2020-07-18 00:21:13,882 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 96 states. [2020-07-18 00:21:13,882 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 96 states. [2020-07-18 00:21:13,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:21:13,893 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2020-07-18 00:21:13,894 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-07-18 00:21:13,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:21:13,896 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:21:13,896 INFO L74 IsIncluded]: Start isIncluded. First operand 96 states. Second operand 101 states. [2020-07-18 00:21:13,896 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 101 states. [2020-07-18 00:21:13,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:21:13,906 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2020-07-18 00:21:13,906 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-07-18 00:21:13,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:21:13,908 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:21:13,908 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:21:13,909 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:21:13,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-07-18 00:21:13,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-07-18 00:21:13,917 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 19 [2020-07-18 00:21:13,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:21:13,918 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-07-18 00:21:13,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-18 00:21:13,918 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 96 states and 111 transitions. [2020-07-18 00:21:14,052 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:21:14,052 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-07-18 00:21:14,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-18 00:21:14,053 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:21:14,053 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:21:14,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:21:14,054 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:21:14,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:21:14,054 INFO L82 PathProgramCache]: Analyzing trace with hash 837576233, now seen corresponding path program 1 times [2020-07-18 00:21:14,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:21:14,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96795234] [2020-07-18 00:21:14,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:21:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:21:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:21:14,156 INFO L280 TraceCheckUtils]: 0: Hoare triple {925#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,157 INFO L280 TraceCheckUtils]: 1: Hoare triple {920#(= 1 ~ldv_mutex~0)} ~open_called~0 := 0; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,157 INFO L280 TraceCheckUtils]: 2: Hoare triple {920#(= 1 ~ldv_mutex~0)} assume true; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,158 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {920#(= 1 ~ldv_mutex~0)} {914#true} #195#return; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:21:14,174 INFO L280 TraceCheckUtils]: 0: Hoare triple {926#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {914#true} is VALID [2020-07-18 00:21:14,175 INFO L280 TraceCheckUtils]: 1: Hoare triple {914#true} #res := 0; {914#true} is VALID [2020-07-18 00:21:14,175 INFO L280 TraceCheckUtils]: 2: Hoare triple {914#true} assume true; {914#true} is VALID [2020-07-18 00:21:14,176 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {914#true} {920#(= 1 ~ldv_mutex~0)} #179#return; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,177 INFO L263 TraceCheckUtils]: 0: Hoare triple {914#true} call ULTIMATE.init(); {925#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} is VALID [2020-07-18 00:21:14,178 INFO L280 TraceCheckUtils]: 1: Hoare triple {925#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,178 INFO L280 TraceCheckUtils]: 2: Hoare triple {920#(= 1 ~ldv_mutex~0)} ~open_called~0 := 0; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,179 INFO L280 TraceCheckUtils]: 3: Hoare triple {920#(= 1 ~ldv_mutex~0)} assume true; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,180 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {920#(= 1 ~ldv_mutex~0)} {914#true} #195#return; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,181 INFO L263 TraceCheckUtils]: 5: Hoare triple {920#(= 1 ~ldv_mutex~0)} call #t~ret12 := main(); {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,181 INFO L280 TraceCheckUtils]: 6: Hoare triple {920#(= 1 ~ldv_mutex~0)} ~ldv_s_misc_fops_file_operations~0 := 0; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,182 INFO L263 TraceCheckUtils]: 7: Hoare triple {920#(= 1 ~ldv_mutex~0)} call #t~ret1 := my_init(); {926#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-18 00:21:14,182 INFO L280 TraceCheckUtils]: 8: Hoare triple {926#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {914#true} is VALID [2020-07-18 00:21:14,183 INFO L280 TraceCheckUtils]: 9: Hoare triple {914#true} #res := 0; {914#true} is VALID [2020-07-18 00:21:14,183 INFO L280 TraceCheckUtils]: 10: Hoare triple {914#true} assume true; {914#true} is VALID [2020-07-18 00:21:14,184 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {914#true} {920#(= 1 ~ldv_mutex~0)} #179#return; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,185 INFO L280 TraceCheckUtils]: 12: Hoare triple {920#(= 1 ~ldv_mutex~0)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,185 INFO L280 TraceCheckUtils]: 13: Hoare triple {920#(= 1 ~ldv_mutex~0)} havoc #t~ret1; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,186 INFO L280 TraceCheckUtils]: 14: Hoare triple {920#(= 1 ~ldv_mutex~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,187 INFO L280 TraceCheckUtils]: 15: Hoare triple {920#(= 1 ~ldv_mutex~0)} assume !(0 != #t~nondet2); {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,187 INFO L280 TraceCheckUtils]: 16: Hoare triple {920#(= 1 ~ldv_mutex~0)} havoc #t~nondet2; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,188 INFO L263 TraceCheckUtils]: 17: Hoare triple {920#(= 1 ~ldv_mutex~0)} call check_final_state(); {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-18 00:21:14,189 INFO L280 TraceCheckUtils]: 18: Hoare triple {920#(= 1 ~ldv_mutex~0)} assume !(1 == ~ldv_mutex~0); {915#false} is VALID [2020-07-18 00:21:14,189 INFO L263 TraceCheckUtils]: 19: Hoare triple {915#false} call __blast_assert(); {915#false} is VALID [2020-07-18 00:21:14,189 INFO L280 TraceCheckUtils]: 20: Hoare triple {915#false} assume !false; {915#false} is VALID [2020-07-18 00:21:14,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:21:14,191 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:21:14,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96795234] [2020-07-18 00:21:14,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:21:14,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-18 00:21:14,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178795851] [2020-07-18 00:21:14,193 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-07-18 00:21:14,194 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:21:14,194 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-18 00:21:14,215 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:21:14,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-18 00:21:14,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:21:14,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-18 00:21:14,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-18 00:21:14,216 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 5 states. [2020-07-18 00:21:15,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:21:15,049 INFO L93 Difference]: Finished difference Result 171 states and 202 transitions. [2020-07-18 00:21:15,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-18 00:21:15,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-07-18 00:21:15,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:21:15,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 00:21:15,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 202 transitions. [2020-07-18 00:21:15,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 00:21:15,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 202 transitions. [2020-07-18 00:21:15,061 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 202 transitions. [2020-07-18 00:21:15,288 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 202 edges. 202 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:21:15,296 INFO L225 Difference]: With dead ends: 171 [2020-07-18 00:21:15,296 INFO L226 Difference]: Without dead ends: 164 [2020-07-18 00:21:15,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-18 00:21:15,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-07-18 00:21:15,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 160. [2020-07-18 00:21:15,469 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:21:15,469 INFO L82 GeneralOperation]: Start isEquivalent. First operand 164 states. Second operand 160 states. [2020-07-18 00:21:15,469 INFO L74 IsIncluded]: Start isIncluded. First operand 164 states. Second operand 160 states. [2020-07-18 00:21:15,470 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 160 states. [2020-07-18 00:21:15,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:21:15,480 INFO L93 Difference]: Finished difference Result 164 states and 194 transitions. [2020-07-18 00:21:15,481 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 194 transitions. [2020-07-18 00:21:15,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:21:15,483 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:21:15,483 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 164 states. [2020-07-18 00:21:15,483 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 164 states. [2020-07-18 00:21:15,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:21:15,493 INFO L93 Difference]: Finished difference Result 164 states and 194 transitions. [2020-07-18 00:21:15,494 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 194 transitions. [2020-07-18 00:21:15,495 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:21:15,496 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:21:15,496 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:21:15,496 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:21:15,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-07-18 00:21:15,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 190 transitions. [2020-07-18 00:21:15,505 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 190 transitions. Word has length 21 [2020-07-18 00:21:15,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:21:15,505 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 190 transitions. [2020-07-18 00:21:15,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-18 00:21:15,505 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 160 states and 190 transitions. [2020-07-18 00:21:15,711 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 190 edges. 190 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:21:15,711 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 190 transitions. [2020-07-18 00:21:15,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-18 00:21:15,712 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:21:15,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:21:15,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:21:15,713 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:21:15,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:21:15,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1006142192, now seen corresponding path program 1 times [2020-07-18 00:21:15,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:21:15,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [566142757] [2020-07-18 00:21:15,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:21:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:21:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:21:15,815 INFO L280 TraceCheckUtils]: 0: Hoare triple {1938#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {1923#true} is VALID [2020-07-18 00:21:15,815 INFO L280 TraceCheckUtils]: 1: Hoare triple {1923#true} ~open_called~0 := 0; {1923#true} is VALID [2020-07-18 00:21:15,816 INFO L280 TraceCheckUtils]: 2: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-18 00:21:15,816 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1923#true} {1923#true} #195#return; {1923#true} is VALID [2020-07-18 00:21:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:21:15,829 INFO L280 TraceCheckUtils]: 0: Hoare triple {1939#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {1923#true} is VALID [2020-07-18 00:21:15,830 INFO L280 TraceCheckUtils]: 1: Hoare triple {1923#true} #res := 0; {1923#true} is VALID [2020-07-18 00:21:15,830 INFO L280 TraceCheckUtils]: 2: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-18 00:21:15,831 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1923#true} {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} #179#return; {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:21:15,845 INFO L280 TraceCheckUtils]: 0: Hoare triple {1940#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {1923#true} is VALID [2020-07-18 00:21:15,845 INFO L280 TraceCheckUtils]: 1: Hoare triple {1923#true} ~ldv_mutex~0 := 2; {1923#true} is VALID [2020-07-18 00:21:15,845 INFO L280 TraceCheckUtils]: 2: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-18 00:21:15,846 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1923#true} {1924#false} #169#return; {1924#false} is VALID [2020-07-18 00:21:15,847 INFO L263 TraceCheckUtils]: 0: Hoare triple {1923#true} call ULTIMATE.init(); {1938#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} is VALID [2020-07-18 00:21:15,847 INFO L280 TraceCheckUtils]: 1: Hoare triple {1938#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {1923#true} is VALID [2020-07-18 00:21:15,847 INFO L280 TraceCheckUtils]: 2: Hoare triple {1923#true} ~open_called~0 := 0; {1923#true} is VALID [2020-07-18 00:21:15,848 INFO L280 TraceCheckUtils]: 3: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-18 00:21:15,848 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1923#true} {1923#true} #195#return; {1923#true} is VALID [2020-07-18 00:21:15,848 INFO L263 TraceCheckUtils]: 5: Hoare triple {1923#true} call #t~ret12 := main(); {1923#true} is VALID [2020-07-18 00:21:15,849 INFO L280 TraceCheckUtils]: 6: Hoare triple {1923#true} ~ldv_s_misc_fops_file_operations~0 := 0; {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,850 INFO L263 TraceCheckUtils]: 7: Hoare triple {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} call #t~ret1 := my_init(); {1939#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-18 00:21:15,850 INFO L280 TraceCheckUtils]: 8: Hoare triple {1939#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {1923#true} is VALID [2020-07-18 00:21:15,851 INFO L280 TraceCheckUtils]: 9: Hoare triple {1923#true} #res := 0; {1923#true} is VALID [2020-07-18 00:21:15,851 INFO L280 TraceCheckUtils]: 10: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-18 00:21:15,852 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {1923#true} {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} #179#return; {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,853 INFO L280 TraceCheckUtils]: 12: Hoare triple {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,853 INFO L280 TraceCheckUtils]: 13: Hoare triple {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} havoc #t~ret1; {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,854 INFO L280 TraceCheckUtils]: 14: Hoare triple {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,855 INFO L280 TraceCheckUtils]: 15: Hoare triple {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume !!(0 != #t~nondet2); {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,855 INFO L280 TraceCheckUtils]: 16: Hoare triple {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} havoc #t~nondet2; {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,859 INFO L280 TraceCheckUtils]: 17: Hoare triple {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,860 INFO L280 TraceCheckUtils]: 18: Hoare triple {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} #t~switch4 := 0 == #t~nondet3; {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,861 INFO L280 TraceCheckUtils]: 19: Hoare triple {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume !#t~switch4; {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,861 INFO L280 TraceCheckUtils]: 20: Hoare triple {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} #t~switch4 := #t~switch4 || 1 == #t~nondet3; {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,862 INFO L280 TraceCheckUtils]: 21: Hoare triple {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume !#t~switch4; {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,863 INFO L280 TraceCheckUtils]: 22: Hoare triple {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} #t~switch4 := #t~switch4 || 2 == #t~nondet3; {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,863 INFO L280 TraceCheckUtils]: 23: Hoare triple {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume !#t~switch4; {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,864 INFO L280 TraceCheckUtils]: 24: Hoare triple {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} #t~switch4 := #t~switch4 || 3 == #t~nondet3; {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,865 INFO L280 TraceCheckUtils]: 25: Hoare triple {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume #t~switch4; {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-18 00:21:15,866 INFO L280 TraceCheckUtils]: 26: Hoare triple {1929#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume 3 == ~ldv_s_misc_fops_file_operations~0; {1924#false} is VALID [2020-07-18 00:21:15,866 INFO L263 TraceCheckUtils]: 27: Hoare triple {1924#false} call #t~ret11 := misc_release(); {1924#false} is VALID [2020-07-18 00:21:15,866 INFO L280 TraceCheckUtils]: 28: Hoare triple {1924#false} assume 0 != ~open_called~0; {1924#false} is VALID [2020-07-18 00:21:15,866 INFO L263 TraceCheckUtils]: 29: Hoare triple {1924#false} call mutex_lock(); {1940#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} is VALID [2020-07-18 00:21:15,867 INFO L280 TraceCheckUtils]: 30: Hoare triple {1940#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {1923#true} is VALID [2020-07-18 00:21:15,867 INFO L280 TraceCheckUtils]: 31: Hoare triple {1923#true} ~ldv_mutex~0 := 2; {1923#true} is VALID [2020-07-18 00:21:15,867 INFO L280 TraceCheckUtils]: 32: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-18 00:21:15,868 INFO L275 TraceCheckUtils]: 33: Hoare quadruple {1923#true} {1924#false} #169#return; {1924#false} is VALID [2020-07-18 00:21:15,868 INFO L263 TraceCheckUtils]: 34: Hoare triple {1924#false} call mutex_unlock(); {1924#false} is VALID [2020-07-18 00:21:15,868 INFO L280 TraceCheckUtils]: 35: Hoare triple {1924#false} assume !(2 == ~ldv_mutex~0); {1924#false} is VALID [2020-07-18 00:21:15,869 INFO L263 TraceCheckUtils]: 36: Hoare triple {1924#false} call __blast_assert(); {1924#false} is VALID [2020-07-18 00:21:15,869 INFO L280 TraceCheckUtils]: 37: Hoare triple {1924#false} assume !false; {1924#false} is VALID [2020-07-18 00:21:15,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:21:15,883 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:21:15,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [566142757] [2020-07-18 00:21:15,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:21:15,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-18 00:21:15,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545694746] [2020-07-18 00:21:15,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-07-18 00:21:15,885 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:21:15,885 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-18 00:21:15,906 WARN L140 InductivityCheck]: Transition 1941#(not (= 2 ~ldv_mutex~0)) ( _ , assume !false; , 1924#false ) not inductive [2020-07-18 00:21:15,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-18 00:21:15,907 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inductivity failed at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.checkInductivity(InductivityCheck.java:103) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.(InductivityCheck.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.constructInterpolantAutomaton(BasicCegarLoop.java:583) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:455) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) 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:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 00:21:15,913 INFO L168 Benchmark]: Toolchain (without parser) took 4728.73 ms. Allocated memory was 142.1 MB in the beginning and 297.3 MB in the end (delta: 155.2 MB). Free memory was 100.2 MB in the beginning and 252.3 MB in the end (delta: -152.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-07-18 00:21:15,914 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 142.1 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 00:21:15,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.35 ms. Allocated memory is still 142.1 MB. Free memory was 99.8 MB in the beginning and 88.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-07-18 00:21:15,916 INFO L168 Benchmark]: Boogie Preprocessor took 120.17 ms. Allocated memory was 142.1 MB in the beginning and 199.2 MB in the end (delta: 57.1 MB). Free memory was 88.7 MB in the beginning and 177.2 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-18 00:21:15,917 INFO L168 Benchmark]: RCFGBuilder took 586.70 ms. Allocated memory is still 199.2 MB. Free memory was 177.2 MB in the beginning and 140.7 MB in the end (delta: 36.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. [2020-07-18 00:21:15,918 INFO L168 Benchmark]: TraceAbstraction took 3728.82 ms. Allocated memory was 199.2 MB in the beginning and 297.3 MB in the end (delta: 98.0 MB). Free memory was 140.7 MB in the beginning and 252.3 MB in the end (delta: -111.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-18 00:21:15,922 INFO L336 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 0.19 ms. Allocated memory is still 142.1 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 286.35 ms. Allocated memory is still 142.1 MB. Free memory was 99.8 MB in the beginning and 88.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.17 ms. Allocated memory was 142.1 MB in the beginning and 199.2 MB in the end (delta: 57.1 MB). Free memory was 88.7 MB in the beginning and 177.2 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 586.70 ms. Allocated memory is still 199.2 MB. Free memory was 177.2 MB in the beginning and 140.7 MB in the end (delta: 36.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3728.82 ms. Allocated memory was 199.2 MB in the beginning and 297.3 MB in the end (delta: 98.0 MB). Free memory was 140.7 MB in the beginning and 252.3 MB in the end (delta: -111.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inductivity failed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inductivity failed: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:142) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...