/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/stateful_check.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 22:21:55,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 22:21:55,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 22:21:55,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 22:21:55,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 22:21:55,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 22:21:55,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 22:21:55,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 22:21:55,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 22:21:55,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 22:21:55,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 22:21:55,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 22:21:55,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 22:21:55,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 22:21:55,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 22:21:55,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 22:21:55,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 22:21:55,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 22:21:55,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 22:21:55,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 22:21:55,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 22:21:55,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 22:21:55,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 22:21:55,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 22:21:55,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 22:21:55,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 22:21:55,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 22:21:55,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 22:21:55,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 22:21:55,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 22:21:55,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 22:21:55,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 22:21:55,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 22:21:55,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 22:21:55,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 22:21:55,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 22:21:55,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 22:21:55,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 22:21:55,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 22:21:55,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 22:21:55,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 22:21:55,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 22:21:55,212 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 22:21:55,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 22:21:55,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 22:21:55,214 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 22:21:55,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 22:21:55,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 22:21:55,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 22:21:55,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 22:21:55,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 22:21:55,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 22:21:55,215 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 22:21:55,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 22:21:55,215 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 22:21:55,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 22:21:55,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 22:21:55,216 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 22:21:55,216 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 22:21:55,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 22:21:55,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 22:21:55,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 22:21:55,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 22:21:55,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 22:21:55,218 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-08 22:21:55,482 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 22:21:55,502 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 22:21:55,505 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 22:21:55,507 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 22:21:55,507 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 22:21:55,508 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/stateful_check.c [2020-07-08 22:21:55,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/448f01cd8/0194d5693173478f9b68d4a30960a29e/FLAG1171a7455 [2020-07-08 22:21:56,125 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 22:21:56,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/stateful_check.c [2020-07-08 22:21:56,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/448f01cd8/0194d5693173478f9b68d4a30960a29e/FLAG1171a7455 [2020-07-08 22:21:56,456 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/448f01cd8/0194d5693173478f9b68d4a30960a29e [2020-07-08 22:21:56,468 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 22:21:56,472 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 22:21:56,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 22:21:56,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 22:21:56,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 22:21:56,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 10:21:56" (1/1) ... [2020-07-08 22:21:56,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ecdb234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:56, skipping insertion in model container [2020-07-08 22:21:56,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 10:21:56" (1/1) ... [2020-07-08 22:21:56,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 22:21:56,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 22:21:56,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 22:21:56,722 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 22:21:56,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 22:21:56,765 INFO L208 MainTranslator]: Completed translation [2020-07-08 22:21:56,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:56 WrapperNode [2020-07-08 22:21:56,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 22:21:56,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 22:21:56,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 22:21:56,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 22:21:56,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:56" (1/1) ... [2020-07-08 22:21:56,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:56" (1/1) ... [2020-07-08 22:21:56,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:56" (1/1) ... [2020-07-08 22:21:56,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:56" (1/1) ... [2020-07-08 22:21:56,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:56" (1/1) ... [2020-07-08 22:21:56,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:56" (1/1) ... [2020-07-08 22:21:56,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:56" (1/1) ... [2020-07-08 22:21:56,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 22:21:56,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 22:21:56,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 22:21:56,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 22:21:56,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:56" (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 [2020-07-08 22:21:56,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 22:21:56,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 22:21:56,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-08 22:21:56,965 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-07-08 22:21:56,965 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-07-08 22:21:56,965 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2020-07-08 22:21:56,965 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2020-07-08 22:21:56,965 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2020-07-08 22:21:56,966 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2020-07-08 22:21:56,966 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2020-07-08 22:21:56,966 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2020-07-08 22:21:56,966 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 22:21:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 22:21:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-08 22:21:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 22:21:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-07-08 22:21:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-07-08 22:21:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2020-07-08 22:21:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2020-07-08 22:21:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2020-07-08 22:21:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2020-07-08 22:21:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2020-07-08 22:21:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2020-07-08 22:21:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 22:21:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 22:21:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 22:21:57,496 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 22:21:57,497 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-08 22:21:57,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 10:21:57 BoogieIcfgContainer [2020-07-08 22:21:57,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 22:21:57,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 22:21:57,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 22:21:57,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 22:21:57,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 10:21:56" (1/3) ... [2020-07-08 22:21:57,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65373745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 10:21:57, skipping insertion in model container [2020-07-08 22:21:57,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:56" (2/3) ... [2020-07-08 22:21:57,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65373745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 10:21:57, skipping insertion in model container [2020-07-08 22:21:57,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 10:21:57" (3/3) ... [2020-07-08 22:21:57,512 INFO L109 eAbstractionObserver]: Analyzing ICFG stateful_check.c [2020-07-08 22:21:57,524 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 22:21:57,533 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 22:21:57,548 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 22:21:57,573 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 22:21:57,573 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 22:21:57,573 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-08 22:21:57,573 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 22:21:57,574 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 22:21:57,574 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 22:21:57,574 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 22:21:57,574 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 22:21:57,595 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-07-08 22:21:57,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-08 22:21:57,607 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:21:57,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:21:57,609 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:21:57,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:21:57,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1008214113, now seen corresponding path program 1 times [2020-07-08 22:21:57,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:21:57,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652193098] [2020-07-08 22:21:57,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:21:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:21:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:21:57,822 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 [2020-07-08 22:21:57,823 INFO L280 TraceCheckUtils]: 1: Hoare triple {108#true} ~open_called~0 := 0; {108#true} is VALID [2020-07-08 22:21:57,823 INFO L280 TraceCheckUtils]: 2: Hoare triple {108#true} assume true; {108#true} is VALID [2020-07-08 22:21:57,824 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {108#true} {108#true} #195#return; {108#true} is VALID [2020-07-08 22:21:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:21:57,846 INFO L280 TraceCheckUtils]: 0: Hoare triple {119#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {108#true} is VALID [2020-07-08 22:21:57,846 INFO L280 TraceCheckUtils]: 1: Hoare triple {108#true} #res := 0; {108#true} is VALID [2020-07-08 22:21:57,847 INFO L280 TraceCheckUtils]: 2: Hoare triple {108#true} assume true; {108#true} is VALID [2020-07-08 22:21:57,847 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {108#true} {108#true} #179#return; {108#true} is VALID [2020-07-08 22:21:57,849 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 [2020-07-08 22:21:57,850 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 [2020-07-08 22:21:57,850 INFO L280 TraceCheckUtils]: 2: Hoare triple {108#true} ~open_called~0 := 0; {108#true} is VALID [2020-07-08 22:21:57,851 INFO L280 TraceCheckUtils]: 3: Hoare triple {108#true} assume true; {108#true} is VALID [2020-07-08 22:21:57,851 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {108#true} {108#true} #195#return; {108#true} is VALID [2020-07-08 22:21:57,851 INFO L263 TraceCheckUtils]: 5: Hoare triple {108#true} call #t~ret12 := main(); {108#true} is VALID [2020-07-08 22:21:57,852 INFO L280 TraceCheckUtils]: 6: Hoare triple {108#true} ~ldv_s_misc_fops_file_operations~0 := 0; {108#true} is VALID [2020-07-08 22:21:57,853 INFO L263 TraceCheckUtils]: 7: Hoare triple {108#true} call #t~ret1 := my_init(); {119#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-08 22:21:57,854 INFO L280 TraceCheckUtils]: 8: Hoare triple {119#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {108#true} is VALID [2020-07-08 22:21:57,854 INFO L280 TraceCheckUtils]: 9: Hoare triple {108#true} #res := 0; {108#true} is VALID [2020-07-08 22:21:57,855 INFO L280 TraceCheckUtils]: 10: Hoare triple {108#true} assume true; {108#true} is VALID [2020-07-08 22:21:57,855 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {108#true} {108#true} #179#return; {108#true} is VALID [2020-07-08 22:21:57,855 INFO L280 TraceCheckUtils]: 12: Hoare triple {108#true} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {108#true} is VALID [2020-07-08 22:21:57,856 INFO L280 TraceCheckUtils]: 13: Hoare triple {108#true} havoc #t~ret1; {108#true} is VALID [2020-07-08 22:21:57,857 INFO L280 TraceCheckUtils]: 14: Hoare triple {108#true} assume !true; {109#false} is VALID [2020-07-08 22:21:57,858 INFO L263 TraceCheckUtils]: 15: Hoare triple {109#false} call check_final_state(); {109#false} is VALID [2020-07-08 22:21:57,858 INFO L280 TraceCheckUtils]: 16: Hoare triple {109#false} assume !(1 == ~ldv_mutex~0); {109#false} is VALID [2020-07-08 22:21:57,859 INFO L263 TraceCheckUtils]: 17: Hoare triple {109#false} call __blast_assert(); {109#false} is VALID [2020-07-08 22:21:57,859 INFO L280 TraceCheckUtils]: 18: Hoare triple {109#false} assume !false; {109#false} is VALID [2020-07-08 22:21:57,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:21:57,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652193098] [2020-07-08 22:21:57,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:21:57,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-08 22:21:57,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253864049] [2020-07-08 22:21:57,874 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-07-08 22:21:57,877 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:21:57,881 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-08 22:21:57,933 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:21:57,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-08 22:21:57,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:21:57,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-08 22:21:57,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-08 22:21:57,944 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 4 states. [2020-07-08 22:21:58,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:21:58,757 INFO L93 Difference]: Finished difference Result 199 states and 244 transitions. [2020-07-08 22:21:58,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-08 22:21:58,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-07-08 22:21:58,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:21:58,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 22:21:58,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 244 transitions. [2020-07-08 22:21:58,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 22:21:58,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 244 transitions. [2020-07-08 22:21:58,811 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 244 transitions. [2020-07-08 22:21:59,105 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 244 edges. 244 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:21:59,130 INFO L225 Difference]: With dead ends: 199 [2020-07-08 22:21:59,130 INFO L226 Difference]: Without dead ends: 101 [2020-07-08 22:21:59,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-08 22:21:59,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-07-08 22:21:59,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2020-07-08 22:21:59,298 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:21:59,299 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 96 states. [2020-07-08 22:21:59,300 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 96 states. [2020-07-08 22:21:59,300 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 96 states. [2020-07-08 22:21:59,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:21:59,311 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2020-07-08 22:21:59,311 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-07-08 22:21:59,313 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:21:59,314 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:21:59,314 INFO L74 IsIncluded]: Start isIncluded. First operand 96 states. Second operand 101 states. [2020-07-08 22:21:59,314 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 101 states. [2020-07-08 22:21:59,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:21:59,324 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2020-07-08 22:21:59,324 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-07-08 22:21:59,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:21:59,326 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:21:59,326 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:21:59,326 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:21:59,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-07-08 22:21:59,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-07-08 22:21:59,335 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 19 [2020-07-08 22:21:59,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:21:59,336 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-07-08 22:21:59,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-08 22:21:59,336 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 96 states and 111 transitions. [2020-07-08 22:21:59,463 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:21:59,464 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-07-08 22:21:59,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-08 22:21:59,465 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:21:59,465 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] [2020-07-08 22:21:59,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 22:21:59,466 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:21:59,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:21:59,466 INFO L82 PathProgramCache]: Analyzing trace with hash 837576233, now seen corresponding path program 1 times [2020-07-08 22:21:59,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:21:59,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109368008] [2020-07-08 22:21:59,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:21:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:21:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:21:59,550 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 [2020-07-08 22:21:59,551 INFO L280 TraceCheckUtils]: 1: Hoare triple {920#(= 1 ~ldv_mutex~0)} ~open_called~0 := 0; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-08 22:21:59,552 INFO L280 TraceCheckUtils]: 2: Hoare triple {920#(= 1 ~ldv_mutex~0)} assume true; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-08 22:21:59,553 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {920#(= 1 ~ldv_mutex~0)} {914#true} #195#return; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-08 22:21:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:21:59,567 INFO L280 TraceCheckUtils]: 0: Hoare triple {926#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {914#true} is VALID [2020-07-08 22:21:59,567 INFO L280 TraceCheckUtils]: 1: Hoare triple {914#true} #res := 0; {914#true} is VALID [2020-07-08 22:21:59,567 INFO L280 TraceCheckUtils]: 2: Hoare triple {914#true} assume true; {914#true} is VALID [2020-07-08 22:21:59,568 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {914#true} {920#(= 1 ~ldv_mutex~0)} #179#return; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-08 22:21:59,569 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 [2020-07-08 22:21:59,570 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 [2020-07-08 22:21:59,571 INFO L280 TraceCheckUtils]: 2: Hoare triple {920#(= 1 ~ldv_mutex~0)} ~open_called~0 := 0; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-08 22:21:59,571 INFO L280 TraceCheckUtils]: 3: Hoare triple {920#(= 1 ~ldv_mutex~0)} assume true; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-08 22:21:59,572 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {920#(= 1 ~ldv_mutex~0)} {914#true} #195#return; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-08 22:21:59,573 INFO L263 TraceCheckUtils]: 5: Hoare triple {920#(= 1 ~ldv_mutex~0)} call #t~ret12 := main(); {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-08 22:21:59,574 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 [2020-07-08 22:21:59,575 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 [2020-07-08 22:21:59,575 INFO L280 TraceCheckUtils]: 8: Hoare triple {926#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {914#true} is VALID [2020-07-08 22:21:59,575 INFO L280 TraceCheckUtils]: 9: Hoare triple {914#true} #res := 0; {914#true} is VALID [2020-07-08 22:21:59,575 INFO L280 TraceCheckUtils]: 10: Hoare triple {914#true} assume true; {914#true} is VALID [2020-07-08 22:21:59,576 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {914#true} {920#(= 1 ~ldv_mutex~0)} #179#return; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-08 22:21:59,577 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 [2020-07-08 22:21:59,578 INFO L280 TraceCheckUtils]: 13: Hoare triple {920#(= 1 ~ldv_mutex~0)} havoc #t~ret1; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-08 22:21:59,578 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 [2020-07-08 22:21:59,579 INFO L280 TraceCheckUtils]: 15: Hoare triple {920#(= 1 ~ldv_mutex~0)} assume !(0 != #t~nondet2); {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-08 22:21:59,580 INFO L280 TraceCheckUtils]: 16: Hoare triple {920#(= 1 ~ldv_mutex~0)} havoc #t~nondet2; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-08 22:21:59,580 INFO L263 TraceCheckUtils]: 17: Hoare triple {920#(= 1 ~ldv_mutex~0)} call check_final_state(); {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-08 22:21:59,581 INFO L280 TraceCheckUtils]: 18: Hoare triple {920#(= 1 ~ldv_mutex~0)} assume !(1 == ~ldv_mutex~0); {915#false} is VALID [2020-07-08 22:21:59,581 INFO L263 TraceCheckUtils]: 19: Hoare triple {915#false} call __blast_assert(); {915#false} is VALID [2020-07-08 22:21:59,582 INFO L280 TraceCheckUtils]: 20: Hoare triple {915#false} assume !false; {915#false} is VALID [2020-07-08 22:21:59,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:21:59,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109368008] [2020-07-08 22:21:59,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:21:59,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 22:21:59,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435174010] [2020-07-08 22:21:59,586 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-07-08 22:21:59,586 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:21:59,586 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 22:21:59,617 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:21:59,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 22:21:59,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:21:59,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 22:21:59,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-08 22:21:59,618 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 5 states. [2020-07-08 22:22:00,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:22:00,445 INFO L93 Difference]: Finished difference Result 171 states and 202 transitions. [2020-07-08 22:22:00,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-08 22:22:00,446 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-07-08 22:22:00,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:22:00,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 22:22:00,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 202 transitions. [2020-07-08 22:22:00,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 22:22:00,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 202 transitions. [2020-07-08 22:22:00,457 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 202 transitions. [2020-07-08 22:22:00,695 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 202 edges. 202 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:22:00,704 INFO L225 Difference]: With dead ends: 171 [2020-07-08 22:22:00,704 INFO L226 Difference]: Without dead ends: 164 [2020-07-08 22:22:00,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-08 22:22:00,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-07-08 22:22:00,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 160. [2020-07-08 22:22:00,885 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:22:00,885 INFO L82 GeneralOperation]: Start isEquivalent. First operand 164 states. Second operand 160 states. [2020-07-08 22:22:00,885 INFO L74 IsIncluded]: Start isIncluded. First operand 164 states. Second operand 160 states. [2020-07-08 22:22:00,885 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 160 states. [2020-07-08 22:22:00,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:22:00,898 INFO L93 Difference]: Finished difference Result 164 states and 194 transitions. [2020-07-08 22:22:00,898 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 194 transitions. [2020-07-08 22:22:00,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:22:00,901 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:22:00,901 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 164 states. [2020-07-08 22:22:00,901 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 164 states. [2020-07-08 22:22:00,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:22:00,912 INFO L93 Difference]: Finished difference Result 164 states and 194 transitions. [2020-07-08 22:22:00,912 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 194 transitions. [2020-07-08 22:22:00,913 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:22:00,914 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:22:00,914 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:22:00,914 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:22:00,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-07-08 22:22:00,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 190 transitions. [2020-07-08 22:22:00,923 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 190 transitions. Word has length 21 [2020-07-08 22:22:00,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:22:00,923 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 190 transitions. [2020-07-08 22:22:00,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 22:22:00,924 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 160 states and 190 transitions. [2020-07-08 22:22:01,141 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 190 edges. 190 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:22:01,141 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 190 transitions. [2020-07-08 22:22:01,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-08 22:22:01,143 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:22:01,143 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] [2020-07-08 22:22:01,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 22:22:01,144 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:22:01,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:22:01,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1006142192, now seen corresponding path program 1 times [2020-07-08 22:22:01,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:22:01,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050439890] [2020-07-08 22:22:01,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:22:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:01,249 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 [2020-07-08 22:22:01,249 INFO L280 TraceCheckUtils]: 1: Hoare triple {1923#true} ~open_called~0 := 0; {1923#true} is VALID [2020-07-08 22:22:01,249 INFO L280 TraceCheckUtils]: 2: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-08 22:22:01,250 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1923#true} {1923#true} #195#return; {1923#true} is VALID [2020-07-08 22:22:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:01,266 INFO L280 TraceCheckUtils]: 0: Hoare triple {1939#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {1923#true} is VALID [2020-07-08 22:22:01,267 INFO L280 TraceCheckUtils]: 1: Hoare triple {1923#true} #res := 0; {1923#true} is VALID [2020-07-08 22:22:01,267 INFO L280 TraceCheckUtils]: 2: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-08 22:22:01,268 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 [2020-07-08 22:22:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:01,298 INFO L280 TraceCheckUtils]: 0: Hoare triple {1940#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {1923#true} is VALID [2020-07-08 22:22:01,298 INFO L280 TraceCheckUtils]: 1: Hoare triple {1923#true} ~ldv_mutex~0 := 2; {1923#true} is VALID [2020-07-08 22:22:01,299 INFO L280 TraceCheckUtils]: 2: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-08 22:22:01,299 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1923#true} {1924#false} #169#return; {1924#false} is VALID [2020-07-08 22:22:01,302 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 [2020-07-08 22:22:01,303 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 [2020-07-08 22:22:01,303 INFO L280 TraceCheckUtils]: 2: Hoare triple {1923#true} ~open_called~0 := 0; {1923#true} is VALID [2020-07-08 22:22:01,303 INFO L280 TraceCheckUtils]: 3: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-08 22:22:01,304 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1923#true} {1923#true} #195#return; {1923#true} is VALID [2020-07-08 22:22:01,304 INFO L263 TraceCheckUtils]: 5: Hoare triple {1923#true} call #t~ret12 := main(); {1923#true} is VALID [2020-07-08 22:22:01,306 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 [2020-07-08 22:22:01,307 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 [2020-07-08 22:22:01,307 INFO L280 TraceCheckUtils]: 8: Hoare triple {1939#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {1923#true} is VALID [2020-07-08 22:22:01,307 INFO L280 TraceCheckUtils]: 9: Hoare triple {1923#true} #res := 0; {1923#true} is VALID [2020-07-08 22:22:01,308 INFO L280 TraceCheckUtils]: 10: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-08 22:22:01,309 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 [2020-07-08 22:22:01,310 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 [2020-07-08 22:22:01,310 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 [2020-07-08 22:22:01,311 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 [2020-07-08 22:22:01,312 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 [2020-07-08 22:22:01,313 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 [2020-07-08 22:22:01,313 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 [2020-07-08 22:22:01,314 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 [2020-07-08 22:22:01,315 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 [2020-07-08 22:22:01,317 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 [2020-07-08 22:22:01,317 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 [2020-07-08 22:22:01,318 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 [2020-07-08 22:22:01,319 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 [2020-07-08 22:22:01,319 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 [2020-07-08 22:22:01,320 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 [2020-07-08 22:22:01,322 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 [2020-07-08 22:22:01,322 INFO L263 TraceCheckUtils]: 27: Hoare triple {1924#false} call #t~ret11 := misc_release(); {1924#false} is VALID [2020-07-08 22:22:01,322 INFO L280 TraceCheckUtils]: 28: Hoare triple {1924#false} assume 0 != ~open_called~0; {1924#false} is VALID [2020-07-08 22:22:01,323 INFO L263 TraceCheckUtils]: 29: Hoare triple {1924#false} call mutex_lock(); {1940#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} is VALID [2020-07-08 22:22:01,323 INFO L280 TraceCheckUtils]: 30: Hoare triple {1940#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {1923#true} is VALID [2020-07-08 22:22:01,323 INFO L280 TraceCheckUtils]: 31: Hoare triple {1923#true} ~ldv_mutex~0 := 2; {1923#true} is VALID [2020-07-08 22:22:01,323 INFO L280 TraceCheckUtils]: 32: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-08 22:22:01,323 INFO L275 TraceCheckUtils]: 33: Hoare quadruple {1923#true} {1924#false} #169#return; {1924#false} is VALID [2020-07-08 22:22:01,324 INFO L263 TraceCheckUtils]: 34: Hoare triple {1924#false} call mutex_unlock(); {1924#false} is VALID [2020-07-08 22:22:01,324 INFO L280 TraceCheckUtils]: 35: Hoare triple {1924#false} assume !(2 == ~ldv_mutex~0); {1924#false} is VALID [2020-07-08 22:22:01,324 INFO L263 TraceCheckUtils]: 36: Hoare triple {1924#false} call __blast_assert(); {1924#false} is VALID [2020-07-08 22:22:01,325 INFO L280 TraceCheckUtils]: 37: Hoare triple {1924#false} assume !false; {1924#false} is VALID [2020-07-08 22:22:01,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:22:01,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050439890] [2020-07-08 22:22:01,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:22:01,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-08 22:22:01,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900570060] [2020-07-08 22:22:01,329 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-08 22:22:01,329 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:22:01,329 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-08 22:22:01,380 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:22:01,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-08 22:22:01,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:22:01,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-08 22:22:01,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 22:22:01,382 INFO L87 Difference]: Start difference. First operand 160 states and 190 transitions. Second operand 6 states. [2020-07-08 22:22:02,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:22:02,502 INFO L93 Difference]: Finished difference Result 411 states and 514 transitions. [2020-07-08 22:22:02,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-08 22:22:02,502 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-08 22:22:02,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:22:02,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 22:22:02,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 328 transitions. [2020-07-08 22:22:02,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 22:22:02,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 328 transitions. [2020-07-08 22:22:02,516 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 328 transitions. [2020-07-08 22:22:02,847 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 328 edges. 328 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:22:02,864 INFO L225 Difference]: With dead ends: 411 [2020-07-08 22:22:02,864 INFO L226 Difference]: Without dead ends: 265 [2020-07-08 22:22:02,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-08 22:22:02,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-07-08 22:22:03,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 200. [2020-07-08 22:22:03,158 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:22:03,158 INFO L82 GeneralOperation]: Start isEquivalent. First operand 265 states. Second operand 200 states. [2020-07-08 22:22:03,158 INFO L74 IsIncluded]: Start isIncluded. First operand 265 states. Second operand 200 states. [2020-07-08 22:22:03,158 INFO L87 Difference]: Start difference. First operand 265 states. Second operand 200 states. [2020-07-08 22:22:03,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:22:03,172 INFO L93 Difference]: Finished difference Result 265 states and 329 transitions. [2020-07-08 22:22:03,173 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 329 transitions. [2020-07-08 22:22:03,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:22:03,174 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:22:03,174 INFO L74 IsIncluded]: Start isIncluded. First operand 200 states. Second operand 265 states. [2020-07-08 22:22:03,175 INFO L87 Difference]: Start difference. First operand 200 states. Second operand 265 states. [2020-07-08 22:22:03,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:22:03,188 INFO L93 Difference]: Finished difference Result 265 states and 329 transitions. [2020-07-08 22:22:03,188 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 329 transitions. [2020-07-08 22:22:03,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:22:03,190 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:22:03,190 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:22:03,190 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:22:03,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-07-08 22:22:03,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 243 transitions. [2020-07-08 22:22:03,199 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 243 transitions. Word has length 38 [2020-07-08 22:22:03,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:22:03,199 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 243 transitions. [2020-07-08 22:22:03,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-08 22:22:03,200 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 200 states and 243 transitions. [2020-07-08 22:22:03,500 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 243 edges. 243 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:22:03,500 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 243 transitions. [2020-07-08 22:22:03,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-08 22:22:03,502 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:22:03,503 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:22:03,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 22:22:03,503 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:22:03,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:22:03,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1762986505, now seen corresponding path program 1 times [2020-07-08 22:22:03,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:22:03,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154106890] [2020-07-08 22:22:03,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:22:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:03,614 INFO L280 TraceCheckUtils]: 0: Hoare triple {3723#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {3699#true} is VALID [2020-07-08 22:22:03,614 INFO L280 TraceCheckUtils]: 1: Hoare triple {3699#true} ~open_called~0 := 0; {3699#true} is VALID [2020-07-08 22:22:03,614 INFO L280 TraceCheckUtils]: 2: Hoare triple {3699#true} assume true; {3699#true} is VALID [2020-07-08 22:22:03,615 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3699#true} {3699#true} #195#return; {3699#true} is VALID [2020-07-08 22:22:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:03,630 INFO L280 TraceCheckUtils]: 0: Hoare triple {3724#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {3699#true} is VALID [2020-07-08 22:22:03,631 INFO L280 TraceCheckUtils]: 1: Hoare triple {3699#true} #res := 0; {3699#true} is VALID [2020-07-08 22:22:03,631 INFO L280 TraceCheckUtils]: 2: Hoare triple {3699#true} assume true; {3699#true} is VALID [2020-07-08 22:22:03,632 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3699#true} {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} #179#return; {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} is VALID [2020-07-08 22:22:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:03,639 INFO L280 TraceCheckUtils]: 0: Hoare triple {3724#(= ~open_called~0 |old(~open_called~0)|)} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {3699#true} is VALID [2020-07-08 22:22:03,640 INFO L280 TraceCheckUtils]: 1: Hoare triple {3699#true} assume 0 != #t~nondet0; {3699#true} is VALID [2020-07-08 22:22:03,640 INFO L280 TraceCheckUtils]: 2: Hoare triple {3699#true} havoc #t~nondet0; {3699#true} is VALID [2020-07-08 22:22:03,640 INFO L280 TraceCheckUtils]: 3: Hoare triple {3699#true} #res := 1; {3699#true} is VALID [2020-07-08 22:22:03,640 INFO L280 TraceCheckUtils]: 4: Hoare triple {3699#true} assume true; {3699#true} is VALID [2020-07-08 22:22:03,641 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {3699#true} {3710#(<= main_~ldv_s_misc_fops_file_operations~0 0)} #181#return; {3710#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-08 22:22:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:03,657 INFO L280 TraceCheckUtils]: 0: Hoare triple {3725#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {3699#true} is VALID [2020-07-08 22:22:03,657 INFO L280 TraceCheckUtils]: 1: Hoare triple {3699#true} ~ldv_mutex~0 := 2; {3699#true} is VALID [2020-07-08 22:22:03,658 INFO L280 TraceCheckUtils]: 2: Hoare triple {3699#true} assume true; {3699#true} is VALID [2020-07-08 22:22:03,658 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3699#true} {3700#false} #169#return; {3700#false} is VALID [2020-07-08 22:22:03,667 INFO L263 TraceCheckUtils]: 0: Hoare triple {3699#true} call ULTIMATE.init(); {3723#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} is VALID [2020-07-08 22:22:03,668 INFO L280 TraceCheckUtils]: 1: Hoare triple {3723#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {3699#true} is VALID [2020-07-08 22:22:03,668 INFO L280 TraceCheckUtils]: 2: Hoare triple {3699#true} ~open_called~0 := 0; {3699#true} is VALID [2020-07-08 22:22:03,669 INFO L280 TraceCheckUtils]: 3: Hoare triple {3699#true} assume true; {3699#true} is VALID [2020-07-08 22:22:03,669 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3699#true} {3699#true} #195#return; {3699#true} is VALID [2020-07-08 22:22:03,669 INFO L263 TraceCheckUtils]: 5: Hoare triple {3699#true} call #t~ret12 := main(); {3699#true} is VALID [2020-07-08 22:22:03,674 INFO L280 TraceCheckUtils]: 6: Hoare triple {3699#true} ~ldv_s_misc_fops_file_operations~0 := 0; {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} is VALID [2020-07-08 22:22:03,675 INFO L263 TraceCheckUtils]: 7: Hoare triple {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} call #t~ret1 := my_init(); {3724#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-08 22:22:03,676 INFO L280 TraceCheckUtils]: 8: Hoare triple {3724#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {3699#true} is VALID [2020-07-08 22:22:03,676 INFO L280 TraceCheckUtils]: 9: Hoare triple {3699#true} #res := 0; {3699#true} is VALID [2020-07-08 22:22:03,676 INFO L280 TraceCheckUtils]: 10: Hoare triple {3699#true} assume true; {3699#true} is VALID [2020-07-08 22:22:03,679 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {3699#true} {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} #179#return; {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} is VALID [2020-07-08 22:22:03,680 INFO L280 TraceCheckUtils]: 12: Hoare triple {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} is VALID [2020-07-08 22:22:03,681 INFO L280 TraceCheckUtils]: 13: Hoare triple {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} havoc #t~ret1; {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} is VALID [2020-07-08 22:22:03,681 INFO L280 TraceCheckUtils]: 14: Hoare triple {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} is VALID [2020-07-08 22:22:03,682 INFO L280 TraceCheckUtils]: 15: Hoare triple {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} assume !!(0 != #t~nondet2); {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} is VALID [2020-07-08 22:22:03,683 INFO L280 TraceCheckUtils]: 16: Hoare triple {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} havoc #t~nondet2; {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} is VALID [2020-07-08 22:22:03,683 INFO L280 TraceCheckUtils]: 17: Hoare triple {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} is VALID [2020-07-08 22:22:03,684 INFO L280 TraceCheckUtils]: 18: Hoare triple {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} #t~switch4 := 0 == #t~nondet3; {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} is VALID [2020-07-08 22:22:03,684 INFO L280 TraceCheckUtils]: 19: Hoare triple {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} assume #t~switch4; {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} is VALID [2020-07-08 22:22:03,685 INFO L280 TraceCheckUtils]: 20: Hoare triple {3705#(= 0 main_~ldv_s_misc_fops_file_operations~0)} assume 0 == ~ldv_s_misc_fops_file_operations~0; {3710#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-08 22:22:03,686 INFO L263 TraceCheckUtils]: 21: Hoare triple {3710#(<= main_~ldv_s_misc_fops_file_operations~0 0)} call #t~ret5 := misc_open(); {3724#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-08 22:22:03,686 INFO L280 TraceCheckUtils]: 22: Hoare triple {3724#(= ~open_called~0 |old(~open_called~0)|)} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {3699#true} is VALID [2020-07-08 22:22:03,686 INFO L280 TraceCheckUtils]: 23: Hoare triple {3699#true} assume 0 != #t~nondet0; {3699#true} is VALID [2020-07-08 22:22:03,687 INFO L280 TraceCheckUtils]: 24: Hoare triple {3699#true} havoc #t~nondet0; {3699#true} is VALID [2020-07-08 22:22:03,687 INFO L280 TraceCheckUtils]: 25: Hoare triple {3699#true} #res := 1; {3699#true} is VALID [2020-07-08 22:22:03,687 INFO L280 TraceCheckUtils]: 26: Hoare triple {3699#true} assume true; {3699#true} is VALID [2020-07-08 22:22:03,688 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {3699#true} {3710#(<= main_~ldv_s_misc_fops_file_operations~0 0)} #181#return; {3710#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-08 22:22:03,689 INFO L280 TraceCheckUtils]: 28: Hoare triple {3710#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; {3710#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-08 22:22:03,689 INFO L280 TraceCheckUtils]: 29: Hoare triple {3710#(<= main_~ldv_s_misc_fops_file_operations~0 0)} havoc #t~ret5; {3710#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-08 22:22:03,690 INFO L280 TraceCheckUtils]: 30: Hoare triple {3710#(<= main_~ldv_s_misc_fops_file_operations~0 0)} #t~post6 := ~ldv_s_misc_fops_file_operations~0; {3717#(<= |main_#t~post6| 0)} is VALID [2020-07-08 22:22:03,690 INFO L280 TraceCheckUtils]: 31: Hoare triple {3717#(<= |main_#t~post6| 0)} ~ldv_s_misc_fops_file_operations~0 := 1 + #t~post6; {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:03,691 INFO L280 TraceCheckUtils]: 32: Hoare triple {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} havoc #t~post6; {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:03,691 INFO L280 TraceCheckUtils]: 33: Hoare triple {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} havoc #t~switch4; {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:03,692 INFO L280 TraceCheckUtils]: 34: Hoare triple {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} havoc #t~nondet3; {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:03,692 INFO L280 TraceCheckUtils]: 35: Hoare triple {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:03,693 INFO L280 TraceCheckUtils]: 36: Hoare triple {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume !!(0 != #t~nondet2); {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:03,693 INFO L280 TraceCheckUtils]: 37: Hoare triple {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} havoc #t~nondet2; {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:03,693 INFO L280 TraceCheckUtils]: 38: Hoare triple {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:03,694 INFO L280 TraceCheckUtils]: 39: Hoare triple {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} #t~switch4 := 0 == #t~nondet3; {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:03,694 INFO L280 TraceCheckUtils]: 40: Hoare triple {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume !#t~switch4; {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:03,695 INFO L280 TraceCheckUtils]: 41: Hoare triple {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} #t~switch4 := #t~switch4 || 1 == #t~nondet3; {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:03,695 INFO L280 TraceCheckUtils]: 42: Hoare triple {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume !#t~switch4; {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:03,696 INFO L280 TraceCheckUtils]: 43: Hoare triple {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} #t~switch4 := #t~switch4 || 2 == #t~nondet3; {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:03,696 INFO L280 TraceCheckUtils]: 44: Hoare triple {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume !#t~switch4; {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:03,696 INFO L280 TraceCheckUtils]: 45: Hoare triple {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} #t~switch4 := #t~switch4 || 3 == #t~nondet3; {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:03,697 INFO L280 TraceCheckUtils]: 46: Hoare triple {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume #t~switch4; {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:03,697 INFO L280 TraceCheckUtils]: 47: Hoare triple {3718#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume 3 == ~ldv_s_misc_fops_file_operations~0; {3700#false} is VALID [2020-07-08 22:22:03,698 INFO L263 TraceCheckUtils]: 48: Hoare triple {3700#false} call #t~ret11 := misc_release(); {3700#false} is VALID [2020-07-08 22:22:03,698 INFO L280 TraceCheckUtils]: 49: Hoare triple {3700#false} assume 0 != ~open_called~0; {3700#false} is VALID [2020-07-08 22:22:03,698 INFO L263 TraceCheckUtils]: 50: Hoare triple {3700#false} call mutex_lock(); {3725#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} is VALID [2020-07-08 22:22:03,698 INFO L280 TraceCheckUtils]: 51: Hoare triple {3725#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {3699#true} is VALID [2020-07-08 22:22:03,698 INFO L280 TraceCheckUtils]: 52: Hoare triple {3699#true} ~ldv_mutex~0 := 2; {3699#true} is VALID [2020-07-08 22:22:03,698 INFO L280 TraceCheckUtils]: 53: Hoare triple {3699#true} assume true; {3699#true} is VALID [2020-07-08 22:22:03,699 INFO L275 TraceCheckUtils]: 54: Hoare quadruple {3699#true} {3700#false} #169#return; {3700#false} is VALID [2020-07-08 22:22:03,699 INFO L263 TraceCheckUtils]: 55: Hoare triple {3700#false} call mutex_unlock(); {3700#false} is VALID [2020-07-08 22:22:03,699 INFO L280 TraceCheckUtils]: 56: Hoare triple {3700#false} assume !(2 == ~ldv_mutex~0); {3700#false} is VALID [2020-07-08 22:22:03,699 INFO L263 TraceCheckUtils]: 57: Hoare triple {3700#false} call __blast_assert(); {3700#false} is VALID [2020-07-08 22:22:03,700 INFO L280 TraceCheckUtils]: 58: Hoare triple {3700#false} assume !false; {3700#false} is VALID [2020-07-08 22:22:03,705 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:22:03,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154106890] [2020-07-08 22:22:03,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:22:03,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-08 22:22:03,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61896519] [2020-07-08 22:22:03,706 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 59 [2020-07-08 22:22:03,707 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:22:03,707 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-08 22:22:03,777 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 59 edges. 59 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:22:03,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-08 22:22:03,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:22:03,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-08 22:22:03,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-08 22:22:03,778 INFO L87 Difference]: Start difference. First operand 200 states and 243 transitions. Second operand 9 states. [2020-07-08 22:22:05,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:22:05,552 INFO L93 Difference]: Finished difference Result 575 states and 738 transitions. [2020-07-08 22:22:05,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-08 22:22:05,553 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 59 [2020-07-08 22:22:05,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:22:05,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 22:22:05,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 444 transitions. [2020-07-08 22:22:05,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 22:22:05,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 444 transitions. [2020-07-08 22:22:05,569 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 444 transitions. [2020-07-08 22:22:06,056 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 444 edges. 444 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:22:06,069 INFO L225 Difference]: With dead ends: 575 [2020-07-08 22:22:06,070 INFO L226 Difference]: Without dead ends: 389 [2020-07-08 22:22:06,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2020-07-08 22:22:06,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-07-08 22:22:06,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 280. [2020-07-08 22:22:06,494 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:22:06,494 INFO L82 GeneralOperation]: Start isEquivalent. First operand 389 states. Second operand 280 states. [2020-07-08 22:22:06,494 INFO L74 IsIncluded]: Start isIncluded. First operand 389 states. Second operand 280 states. [2020-07-08 22:22:06,494 INFO L87 Difference]: Start difference. First operand 389 states. Second operand 280 states. [2020-07-08 22:22:06,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:22:06,514 INFO L93 Difference]: Finished difference Result 389 states and 491 transitions. [2020-07-08 22:22:06,515 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 491 transitions. [2020-07-08 22:22:06,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:22:06,516 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:22:06,517 INFO L74 IsIncluded]: Start isIncluded. First operand 280 states. Second operand 389 states. [2020-07-08 22:22:06,517 INFO L87 Difference]: Start difference. First operand 280 states. Second operand 389 states. [2020-07-08 22:22:06,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:22:06,536 INFO L93 Difference]: Finished difference Result 389 states and 491 transitions. [2020-07-08 22:22:06,537 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 491 transitions. [2020-07-08 22:22:06,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:22:06,538 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:22:06,539 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:22:06,539 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:22:06,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-07-08 22:22:06,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 349 transitions. [2020-07-08 22:22:06,552 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 349 transitions. Word has length 59 [2020-07-08 22:22:06,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:22:06,552 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 349 transitions. [2020-07-08 22:22:06,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-08 22:22:06,553 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 280 states and 349 transitions. [2020-07-08 22:22:06,988 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 349 edges. 349 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:22:06,989 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 349 transitions. [2020-07-08 22:22:06,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-08 22:22:06,991 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:22:06,991 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:22:06,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-08 22:22:06,992 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:22:06,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:22:06,993 INFO L82 PathProgramCache]: Analyzing trace with hash -586168855, now seen corresponding path program 1 times [2020-07-08 22:22:06,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:22:06,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155903584] [2020-07-08 22:22:06,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:22:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:07,137 INFO L280 TraceCheckUtils]: 0: Hoare triple {6258#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {6232#true} is VALID [2020-07-08 22:22:07,137 INFO L280 TraceCheckUtils]: 1: Hoare triple {6232#true} ~open_called~0 := 0; {6232#true} is VALID [2020-07-08 22:22:07,137 INFO L280 TraceCheckUtils]: 2: Hoare triple {6232#true} assume true; {6232#true} is VALID [2020-07-08 22:22:07,138 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6232#true} {6232#true} #195#return; {6232#true} is VALID [2020-07-08 22:22:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:07,150 INFO L280 TraceCheckUtils]: 0: Hoare triple {6259#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {6232#true} is VALID [2020-07-08 22:22:07,151 INFO L280 TraceCheckUtils]: 1: Hoare triple {6232#true} #res := 0; {6232#true} is VALID [2020-07-08 22:22:07,151 INFO L280 TraceCheckUtils]: 2: Hoare triple {6232#true} assume true; {6232#true} is VALID [2020-07-08 22:22:07,151 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6232#true} {6232#true} #179#return; {6232#true} is VALID [2020-07-08 22:22:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:07,156 INFO L280 TraceCheckUtils]: 0: Hoare triple {6259#(= ~open_called~0 |old(~open_called~0)|)} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {6232#true} is VALID [2020-07-08 22:22:07,157 INFO L280 TraceCheckUtils]: 1: Hoare triple {6232#true} assume 0 != #t~nondet0; {6232#true} is VALID [2020-07-08 22:22:07,157 INFO L280 TraceCheckUtils]: 2: Hoare triple {6232#true} havoc #t~nondet0; {6232#true} is VALID [2020-07-08 22:22:07,157 INFO L280 TraceCheckUtils]: 3: Hoare triple {6232#true} #res := 1; {6232#true} is VALID [2020-07-08 22:22:07,158 INFO L280 TraceCheckUtils]: 4: Hoare triple {6232#true} assume true; {6232#true} is VALID [2020-07-08 22:22:07,158 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {6232#true} {6232#true} #181#return; {6232#true} is VALID [2020-07-08 22:22:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:07,163 INFO L280 TraceCheckUtils]: 0: Hoare triple {6232#true} #res := 0; {6232#true} is VALID [2020-07-08 22:22:07,164 INFO L280 TraceCheckUtils]: 1: Hoare triple {6232#true} assume true; {6232#true} is VALID [2020-07-08 22:22:07,165 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6232#true} {6248#(<= main_~ldv_s_misc_fops_file_operations~0 1)} #183#return; {6248#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:07,178 INFO L280 TraceCheckUtils]: 0: Hoare triple {6260#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {6232#true} is VALID [2020-07-08 22:22:07,179 INFO L280 TraceCheckUtils]: 1: Hoare triple {6232#true} ~ldv_mutex~0 := 2; {6232#true} is VALID [2020-07-08 22:22:07,179 INFO L280 TraceCheckUtils]: 2: Hoare triple {6232#true} assume true; {6232#true} is VALID [2020-07-08 22:22:07,179 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6232#true} {6233#false} #169#return; {6233#false} is VALID [2020-07-08 22:22:07,180 INFO L263 TraceCheckUtils]: 0: Hoare triple {6232#true} call ULTIMATE.init(); {6258#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} is VALID [2020-07-08 22:22:07,181 INFO L280 TraceCheckUtils]: 1: Hoare triple {6258#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {6232#true} is VALID [2020-07-08 22:22:07,181 INFO L280 TraceCheckUtils]: 2: Hoare triple {6232#true} ~open_called~0 := 0; {6232#true} is VALID [2020-07-08 22:22:07,181 INFO L280 TraceCheckUtils]: 3: Hoare triple {6232#true} assume true; {6232#true} is VALID [2020-07-08 22:22:07,181 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6232#true} {6232#true} #195#return; {6232#true} is VALID [2020-07-08 22:22:07,182 INFO L263 TraceCheckUtils]: 5: Hoare triple {6232#true} call #t~ret12 := main(); {6232#true} is VALID [2020-07-08 22:22:07,182 INFO L280 TraceCheckUtils]: 6: Hoare triple {6232#true} ~ldv_s_misc_fops_file_operations~0 := 0; {6232#true} is VALID [2020-07-08 22:22:07,183 INFO L263 TraceCheckUtils]: 7: Hoare triple {6232#true} call #t~ret1 := my_init(); {6259#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-08 22:22:07,183 INFO L280 TraceCheckUtils]: 8: Hoare triple {6259#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {6232#true} is VALID [2020-07-08 22:22:07,183 INFO L280 TraceCheckUtils]: 9: Hoare triple {6232#true} #res := 0; {6232#true} is VALID [2020-07-08 22:22:07,184 INFO L280 TraceCheckUtils]: 10: Hoare triple {6232#true} assume true; {6232#true} is VALID [2020-07-08 22:22:07,184 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {6232#true} {6232#true} #179#return; {6232#true} is VALID [2020-07-08 22:22:07,184 INFO L280 TraceCheckUtils]: 12: Hoare triple {6232#true} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {6232#true} is VALID [2020-07-08 22:22:07,184 INFO L280 TraceCheckUtils]: 13: Hoare triple {6232#true} havoc #t~ret1; {6232#true} is VALID [2020-07-08 22:22:07,185 INFO L280 TraceCheckUtils]: 14: Hoare triple {6232#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {6232#true} is VALID [2020-07-08 22:22:07,185 INFO L280 TraceCheckUtils]: 15: Hoare triple {6232#true} assume !!(0 != #t~nondet2); {6232#true} is VALID [2020-07-08 22:22:07,185 INFO L280 TraceCheckUtils]: 16: Hoare triple {6232#true} havoc #t~nondet2; {6232#true} is VALID [2020-07-08 22:22:07,185 INFO L280 TraceCheckUtils]: 17: Hoare triple {6232#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {6232#true} is VALID [2020-07-08 22:22:07,185 INFO L280 TraceCheckUtils]: 18: Hoare triple {6232#true} #t~switch4 := 0 == #t~nondet3; {6232#true} is VALID [2020-07-08 22:22:07,186 INFO L280 TraceCheckUtils]: 19: Hoare triple {6232#true} assume #t~switch4; {6232#true} is VALID [2020-07-08 22:22:07,186 INFO L280 TraceCheckUtils]: 20: Hoare triple {6232#true} assume 0 == ~ldv_s_misc_fops_file_operations~0; {6232#true} is VALID [2020-07-08 22:22:07,187 INFO L263 TraceCheckUtils]: 21: Hoare triple {6232#true} call #t~ret5 := misc_open(); {6259#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-08 22:22:07,187 INFO L280 TraceCheckUtils]: 22: Hoare triple {6259#(= ~open_called~0 |old(~open_called~0)|)} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {6232#true} is VALID [2020-07-08 22:22:07,187 INFO L280 TraceCheckUtils]: 23: Hoare triple {6232#true} assume 0 != #t~nondet0; {6232#true} is VALID [2020-07-08 22:22:07,188 INFO L280 TraceCheckUtils]: 24: Hoare triple {6232#true} havoc #t~nondet0; {6232#true} is VALID [2020-07-08 22:22:07,188 INFO L280 TraceCheckUtils]: 25: Hoare triple {6232#true} #res := 1; {6232#true} is VALID [2020-07-08 22:22:07,188 INFO L280 TraceCheckUtils]: 26: Hoare triple {6232#true} assume true; {6232#true} is VALID [2020-07-08 22:22:07,188 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {6232#true} {6232#true} #181#return; {6232#true} is VALID [2020-07-08 22:22:07,188 INFO L280 TraceCheckUtils]: 28: Hoare triple {6232#true} assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; {6232#true} is VALID [2020-07-08 22:22:07,189 INFO L280 TraceCheckUtils]: 29: Hoare triple {6232#true} havoc #t~ret5; {6232#true} is VALID [2020-07-08 22:22:07,189 INFO L280 TraceCheckUtils]: 30: Hoare triple {6232#true} #t~post6 := ~ldv_s_misc_fops_file_operations~0; {6232#true} is VALID [2020-07-08 22:22:07,189 INFO L280 TraceCheckUtils]: 31: Hoare triple {6232#true} ~ldv_s_misc_fops_file_operations~0 := 1 + #t~post6; {6232#true} is VALID [2020-07-08 22:22:07,189 INFO L280 TraceCheckUtils]: 32: Hoare triple {6232#true} havoc #t~post6; {6232#true} is VALID [2020-07-08 22:22:07,190 INFO L280 TraceCheckUtils]: 33: Hoare triple {6232#true} havoc #t~switch4; {6232#true} is VALID [2020-07-08 22:22:07,190 INFO L280 TraceCheckUtils]: 34: Hoare triple {6232#true} havoc #t~nondet3; {6232#true} is VALID [2020-07-08 22:22:07,190 INFO L280 TraceCheckUtils]: 35: Hoare triple {6232#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {6232#true} is VALID [2020-07-08 22:22:07,190 INFO L280 TraceCheckUtils]: 36: Hoare triple {6232#true} assume !!(0 != #t~nondet2); {6232#true} is VALID [2020-07-08 22:22:07,191 INFO L280 TraceCheckUtils]: 37: Hoare triple {6232#true} havoc #t~nondet2; {6232#true} is VALID [2020-07-08 22:22:07,191 INFO L280 TraceCheckUtils]: 38: Hoare triple {6232#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {6232#true} is VALID [2020-07-08 22:22:07,191 INFO L280 TraceCheckUtils]: 39: Hoare triple {6232#true} #t~switch4 := 0 == #t~nondet3; {6232#true} is VALID [2020-07-08 22:22:07,191 INFO L280 TraceCheckUtils]: 40: Hoare triple {6232#true} assume !#t~switch4; {6232#true} is VALID [2020-07-08 22:22:07,192 INFO L280 TraceCheckUtils]: 41: Hoare triple {6232#true} #t~switch4 := #t~switch4 || 1 == #t~nondet3; {6232#true} is VALID [2020-07-08 22:22:07,192 INFO L280 TraceCheckUtils]: 42: Hoare triple {6232#true} assume #t~switch4; {6232#true} is VALID [2020-07-08 22:22:07,193 INFO L280 TraceCheckUtils]: 43: Hoare triple {6232#true} assume 1 == ~ldv_s_misc_fops_file_operations~0; {6248#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:07,193 INFO L263 TraceCheckUtils]: 44: Hoare triple {6248#(<= main_~ldv_s_misc_fops_file_operations~0 1)} call #t~ret7 := misc_read(); {6232#true} is VALID [2020-07-08 22:22:07,193 INFO L280 TraceCheckUtils]: 45: Hoare triple {6232#true} #res := 0; {6232#true} is VALID [2020-07-08 22:22:07,193 INFO L280 TraceCheckUtils]: 46: Hoare triple {6232#true} assume true; {6232#true} is VALID [2020-07-08 22:22:07,194 INFO L275 TraceCheckUtils]: 47: Hoare quadruple {6232#true} {6248#(<= main_~ldv_s_misc_fops_file_operations~0 1)} #183#return; {6248#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:07,195 INFO L280 TraceCheckUtils]: 48: Hoare triple {6248#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume -2147483648 <= #t~ret7 && #t~ret7 <= 2147483647; {6248#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:07,196 INFO L280 TraceCheckUtils]: 49: Hoare triple {6248#(<= main_~ldv_s_misc_fops_file_operations~0 1)} havoc #t~ret7; {6248#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-08 22:22:07,196 INFO L280 TraceCheckUtils]: 50: Hoare triple {6248#(<= main_~ldv_s_misc_fops_file_operations~0 1)} #t~post8 := ~ldv_s_misc_fops_file_operations~0; {6252#(<= |main_#t~post8| 1)} is VALID [2020-07-08 22:22:07,197 INFO L280 TraceCheckUtils]: 51: Hoare triple {6252#(<= |main_#t~post8| 1)} ~ldv_s_misc_fops_file_operations~0 := 1 + #t~post8; {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-08 22:22:07,198 INFO L280 TraceCheckUtils]: 52: Hoare triple {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} havoc #t~post8; {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-08 22:22:07,199 INFO L280 TraceCheckUtils]: 53: Hoare triple {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} havoc #t~switch4; {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-08 22:22:07,201 INFO L280 TraceCheckUtils]: 54: Hoare triple {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} havoc #t~nondet3; {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-08 22:22:07,202 INFO L280 TraceCheckUtils]: 55: Hoare triple {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-08 22:22:07,203 INFO L280 TraceCheckUtils]: 56: Hoare triple {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} assume !!(0 != #t~nondet2); {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-08 22:22:07,204 INFO L280 TraceCheckUtils]: 57: Hoare triple {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} havoc #t~nondet2; {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-08 22:22:07,204 INFO L280 TraceCheckUtils]: 58: Hoare triple {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-08 22:22:07,205 INFO L280 TraceCheckUtils]: 59: Hoare triple {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} #t~switch4 := 0 == #t~nondet3; {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-08 22:22:07,206 INFO L280 TraceCheckUtils]: 60: Hoare triple {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} assume !#t~switch4; {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-08 22:22:07,206 INFO L280 TraceCheckUtils]: 61: Hoare triple {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} #t~switch4 := #t~switch4 || 1 == #t~nondet3; {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-08 22:22:07,207 INFO L280 TraceCheckUtils]: 62: Hoare triple {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} assume !#t~switch4; {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-08 22:22:07,207 INFO L280 TraceCheckUtils]: 63: Hoare triple {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} #t~switch4 := #t~switch4 || 2 == #t~nondet3; {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-08 22:22:07,208 INFO L280 TraceCheckUtils]: 64: Hoare triple {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} assume !#t~switch4; {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-08 22:22:07,209 INFO L280 TraceCheckUtils]: 65: Hoare triple {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} #t~switch4 := #t~switch4 || 3 == #t~nondet3; {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-08 22:22:07,209 INFO L280 TraceCheckUtils]: 66: Hoare triple {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} assume #t~switch4; {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-08 22:22:07,210 INFO L280 TraceCheckUtils]: 67: Hoare triple {6253#(<= main_~ldv_s_misc_fops_file_operations~0 2)} assume 3 == ~ldv_s_misc_fops_file_operations~0; {6233#false} is VALID [2020-07-08 22:22:07,210 INFO L263 TraceCheckUtils]: 68: Hoare triple {6233#false} call #t~ret11 := misc_release(); {6233#false} is VALID [2020-07-08 22:22:07,210 INFO L280 TraceCheckUtils]: 69: Hoare triple {6233#false} assume 0 != ~open_called~0; {6233#false} is VALID [2020-07-08 22:22:07,211 INFO L263 TraceCheckUtils]: 70: Hoare triple {6233#false} call mutex_lock(); {6260#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} is VALID [2020-07-08 22:22:07,211 INFO L280 TraceCheckUtils]: 71: Hoare triple {6260#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {6232#true} is VALID [2020-07-08 22:22:07,211 INFO L280 TraceCheckUtils]: 72: Hoare triple {6232#true} ~ldv_mutex~0 := 2; {6232#true} is VALID [2020-07-08 22:22:07,211 INFO L280 TraceCheckUtils]: 73: Hoare triple {6232#true} assume true; {6232#true} is VALID [2020-07-08 22:22:07,212 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {6232#true} {6233#false} #169#return; {6233#false} is VALID [2020-07-08 22:22:07,212 INFO L263 TraceCheckUtils]: 75: Hoare triple {6233#false} call mutex_unlock(); {6233#false} is VALID [2020-07-08 22:22:07,212 INFO L280 TraceCheckUtils]: 76: Hoare triple {6233#false} assume !(2 == ~ldv_mutex~0); {6233#false} is VALID [2020-07-08 22:22:07,212 INFO L263 TraceCheckUtils]: 77: Hoare triple {6233#false} call __blast_assert(); {6233#false} is VALID [2020-07-08 22:22:07,213 INFO L280 TraceCheckUtils]: 78: Hoare triple {6233#false} assume !false; {6233#false} is VALID [2020-07-08 22:22:07,217 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-08 22:22:07,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155903584] [2020-07-08 22:22:07,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:22:07,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-08 22:22:07,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139137060] [2020-07-08 22:22:07,219 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-07-08 22:22:07,220 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:22:07,220 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-08 22:22:07,291 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:22:07,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-08 22:22:07,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:22:07,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-08 22:22:07,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-08 22:22:07,292 INFO L87 Difference]: Start difference. First operand 280 states and 349 transitions. Second operand 8 states. [2020-07-08 22:22:09,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:22:09,443 INFO L93 Difference]: Finished difference Result 773 states and 1000 transitions. [2020-07-08 22:22:09,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-08 22:22:09,444 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-07-08 22:22:09,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:22:09,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 22:22:09,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 389 transitions. [2020-07-08 22:22:09,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 22:22:09,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 389 transitions. [2020-07-08 22:22:09,458 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 389 transitions. [2020-07-08 22:22:09,870 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 389 edges. 389 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:22:09,897 INFO L225 Difference]: With dead ends: 773 [2020-07-08 22:22:09,897 INFO L226 Difference]: Without dead ends: 507 [2020-07-08 22:22:09,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-07-08 22:22:09,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-07-08 22:22:10,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 360. [2020-07-08 22:22:10,451 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:22:10,451 INFO L82 GeneralOperation]: Start isEquivalent. First operand 507 states. Second operand 360 states. [2020-07-08 22:22:10,452 INFO L74 IsIncluded]: Start isIncluded. First operand 507 states. Second operand 360 states. [2020-07-08 22:22:10,453 INFO L87 Difference]: Start difference. First operand 507 states. Second operand 360 states. [2020-07-08 22:22:10,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:22:10,476 INFO L93 Difference]: Finished difference Result 507 states and 656 transitions. [2020-07-08 22:22:10,476 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 656 transitions. [2020-07-08 22:22:10,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:22:10,481 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:22:10,481 INFO L74 IsIncluded]: Start isIncluded. First operand 360 states. Second operand 507 states. [2020-07-08 22:22:10,481 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 507 states. [2020-07-08 22:22:10,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:22:10,505 INFO L93 Difference]: Finished difference Result 507 states and 656 transitions. [2020-07-08 22:22:10,505 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 656 transitions. [2020-07-08 22:22:10,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:22:10,508 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:22:10,508 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:22:10,508 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:22:10,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-07-08 22:22:10,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 461 transitions. [2020-07-08 22:22:10,521 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 461 transitions. Word has length 79 [2020-07-08 22:22:10,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:22:10,522 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 461 transitions. [2020-07-08 22:22:10,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-08 22:22:10,522 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 360 states and 461 transitions. [2020-07-08 22:22:11,135 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 461 edges. 461 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:22:11,136 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 461 transitions. [2020-07-08 22:22:11,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-07-08 22:22:11,140 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:22:11,140 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 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, 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] [2020-07-08 22:22:11,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-08 22:22:11,140 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:22:11,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:22:11,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1731656998, now seen corresponding path program 1 times [2020-07-08 22:22:11,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:22:11,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366219919] [2020-07-08 22:22:11,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:22:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:11,225 INFO L280 TraceCheckUtils]: 0: Hoare triple {9586#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {9559#true} is VALID [2020-07-08 22:22:11,225 INFO L280 TraceCheckUtils]: 1: Hoare triple {9559#true} ~open_called~0 := 0; {9559#true} is VALID [2020-07-08 22:22:11,226 INFO L280 TraceCheckUtils]: 2: Hoare triple {9559#true} assume true; {9559#true} is VALID [2020-07-08 22:22:11,226 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9559#true} {9559#true} #195#return; {9559#true} is VALID [2020-07-08 22:22:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:11,237 INFO L280 TraceCheckUtils]: 0: Hoare triple {9587#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {9559#true} is VALID [2020-07-08 22:22:11,238 INFO L280 TraceCheckUtils]: 1: Hoare triple {9559#true} #res := 0; {9559#true} is VALID [2020-07-08 22:22:11,238 INFO L280 TraceCheckUtils]: 2: Hoare triple {9559#true} assume true; {9559#true} is VALID [2020-07-08 22:22:11,238 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9559#true} {9559#true} #179#return; {9559#true} is VALID [2020-07-08 22:22:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:11,243 INFO L280 TraceCheckUtils]: 0: Hoare triple {9587#(= ~open_called~0 |old(~open_called~0)|)} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {9559#true} is VALID [2020-07-08 22:22:11,243 INFO L280 TraceCheckUtils]: 1: Hoare triple {9559#true} assume 0 != #t~nondet0; {9559#true} is VALID [2020-07-08 22:22:11,243 INFO L280 TraceCheckUtils]: 2: Hoare triple {9559#true} havoc #t~nondet0; {9559#true} is VALID [2020-07-08 22:22:11,244 INFO L280 TraceCheckUtils]: 3: Hoare triple {9559#true} #res := 1; {9559#true} is VALID [2020-07-08 22:22:11,244 INFO L280 TraceCheckUtils]: 4: Hoare triple {9559#true} assume true; {9559#true} is VALID [2020-07-08 22:22:11,244 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {9559#true} {9559#true} #181#return; {9559#true} is VALID [2020-07-08 22:22:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:11,248 INFO L280 TraceCheckUtils]: 0: Hoare triple {9559#true} #res := 0; {9559#true} is VALID [2020-07-08 22:22:11,249 INFO L280 TraceCheckUtils]: 1: Hoare triple {9559#true} assume true; {9559#true} is VALID [2020-07-08 22:22:11,249 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {9559#true} {9559#true} #183#return; {9559#true} is VALID [2020-07-08 22:22:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:11,252 INFO L280 TraceCheckUtils]: 0: Hoare triple {9559#true} #res := 0; {9559#true} is VALID [2020-07-08 22:22:11,253 INFO L280 TraceCheckUtils]: 1: Hoare triple {9559#true} assume true; {9559#true} is VALID [2020-07-08 22:22:11,253 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {9559#true} {9559#true} #185#return; {9559#true} is VALID [2020-07-08 22:22:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:22:11,279 INFO L280 TraceCheckUtils]: 0: Hoare triple {9588#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {9559#true} is VALID [2020-07-08 22:22:11,280 INFO L280 TraceCheckUtils]: 1: Hoare triple {9559#true} ~ldv_mutex~0 := 2; {9585#(= 2 ~ldv_mutex~0)} is VALID [2020-07-08 22:22:11,281 INFO L280 TraceCheckUtils]: 2: Hoare triple {9585#(= 2 ~ldv_mutex~0)} assume true; {9585#(= 2 ~ldv_mutex~0)} is VALID [2020-07-08 22:22:11,282 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9585#(= 2 ~ldv_mutex~0)} {9559#true} #169#return; {9585#(= 2 ~ldv_mutex~0)} is VALID [2020-07-08 22:22:11,283 INFO L263 TraceCheckUtils]: 0: Hoare triple {9559#true} call ULTIMATE.init(); {9586#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} is VALID [2020-07-08 22:22:11,283 INFO L280 TraceCheckUtils]: 1: Hoare triple {9586#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {9559#true} is VALID [2020-07-08 22:22:11,284 INFO L280 TraceCheckUtils]: 2: Hoare triple {9559#true} ~open_called~0 := 0; {9559#true} is VALID [2020-07-08 22:22:11,284 INFO L280 TraceCheckUtils]: 3: Hoare triple {9559#true} assume true; {9559#true} is VALID [2020-07-08 22:22:11,286 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {9559#true} {9559#true} #195#return; {9559#true} is VALID [2020-07-08 22:22:11,287 INFO L263 TraceCheckUtils]: 5: Hoare triple {9559#true} call #t~ret12 := main(); {9559#true} is VALID [2020-07-08 22:22:11,288 INFO L280 TraceCheckUtils]: 6: Hoare triple {9559#true} ~ldv_s_misc_fops_file_operations~0 := 0; {9559#true} is VALID [2020-07-08 22:22:11,289 INFO L263 TraceCheckUtils]: 7: Hoare triple {9559#true} call #t~ret1 := my_init(); {9587#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-08 22:22:11,289 INFO L280 TraceCheckUtils]: 8: Hoare triple {9587#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {9559#true} is VALID [2020-07-08 22:22:11,290 INFO L280 TraceCheckUtils]: 9: Hoare triple {9559#true} #res := 0; {9559#true} is VALID [2020-07-08 22:22:11,290 INFO L280 TraceCheckUtils]: 10: Hoare triple {9559#true} assume true; {9559#true} is VALID [2020-07-08 22:22:11,290 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {9559#true} {9559#true} #179#return; {9559#true} is VALID [2020-07-08 22:22:11,291 INFO L280 TraceCheckUtils]: 12: Hoare triple {9559#true} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {9559#true} is VALID [2020-07-08 22:22:11,291 INFO L280 TraceCheckUtils]: 13: Hoare triple {9559#true} havoc #t~ret1; {9559#true} is VALID [2020-07-08 22:22:11,296 INFO L280 TraceCheckUtils]: 14: Hoare triple {9559#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {9559#true} is VALID [2020-07-08 22:22:11,296 INFO L280 TraceCheckUtils]: 15: Hoare triple {9559#true} assume !!(0 != #t~nondet2); {9559#true} is VALID [2020-07-08 22:22:11,296 INFO L280 TraceCheckUtils]: 16: Hoare triple {9559#true} havoc #t~nondet2; {9559#true} is VALID [2020-07-08 22:22:11,296 INFO L280 TraceCheckUtils]: 17: Hoare triple {9559#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {9559#true} is VALID [2020-07-08 22:22:11,297 INFO L280 TraceCheckUtils]: 18: Hoare triple {9559#true} #t~switch4 := 0 == #t~nondet3; {9559#true} is VALID [2020-07-08 22:22:11,297 INFO L280 TraceCheckUtils]: 19: Hoare triple {9559#true} assume #t~switch4; {9559#true} is VALID [2020-07-08 22:22:11,300 INFO L280 TraceCheckUtils]: 20: Hoare triple {9559#true} assume 0 == ~ldv_s_misc_fops_file_operations~0; {9559#true} is VALID [2020-07-08 22:22:11,302 INFO L263 TraceCheckUtils]: 21: Hoare triple {9559#true} call #t~ret5 := misc_open(); {9587#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-08 22:22:11,302 INFO L280 TraceCheckUtils]: 22: Hoare triple {9587#(= ~open_called~0 |old(~open_called~0)|)} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {9559#true} is VALID [2020-07-08 22:22:11,303 INFO L280 TraceCheckUtils]: 23: Hoare triple {9559#true} assume 0 != #t~nondet0; {9559#true} is VALID [2020-07-08 22:22:11,303 INFO L280 TraceCheckUtils]: 24: Hoare triple {9559#true} havoc #t~nondet0; {9559#true} is VALID [2020-07-08 22:22:11,303 INFO L280 TraceCheckUtils]: 25: Hoare triple {9559#true} #res := 1; {9559#true} is VALID [2020-07-08 22:22:11,304 INFO L280 TraceCheckUtils]: 26: Hoare triple {9559#true} assume true; {9559#true} is VALID [2020-07-08 22:22:11,304 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {9559#true} {9559#true} #181#return; {9559#true} is VALID [2020-07-08 22:22:11,304 INFO L280 TraceCheckUtils]: 28: Hoare triple {9559#true} assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; {9559#true} is VALID [2020-07-08 22:22:11,305 INFO L280 TraceCheckUtils]: 29: Hoare triple {9559#true} havoc #t~ret5; {9559#true} is VALID [2020-07-08 22:22:11,307 INFO L280 TraceCheckUtils]: 30: Hoare triple {9559#true} #t~post6 := ~ldv_s_misc_fops_file_operations~0; {9559#true} is VALID [2020-07-08 22:22:11,308 INFO L280 TraceCheckUtils]: 31: Hoare triple {9559#true} ~ldv_s_misc_fops_file_operations~0 := 1 + #t~post6; {9559#true} is VALID [2020-07-08 22:22:11,308 INFO L280 TraceCheckUtils]: 32: Hoare triple {9559#true} havoc #t~post6; {9559#true} is VALID [2020-07-08 22:22:11,308 INFO L280 TraceCheckUtils]: 33: Hoare triple {9559#true} havoc #t~switch4; {9559#true} is VALID [2020-07-08 22:22:11,309 INFO L280 TraceCheckUtils]: 34: Hoare triple {9559#true} havoc #t~nondet3; {9559#true} is VALID [2020-07-08 22:22:11,309 INFO L280 TraceCheckUtils]: 35: Hoare triple {9559#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {9559#true} is VALID [2020-07-08 22:22:11,312 INFO L280 TraceCheckUtils]: 36: Hoare triple {9559#true} assume !!(0 != #t~nondet2); {9559#true} is VALID [2020-07-08 22:22:11,312 INFO L280 TraceCheckUtils]: 37: Hoare triple {9559#true} havoc #t~nondet2; {9559#true} is VALID [2020-07-08 22:22:11,313 INFO L280 TraceCheckUtils]: 38: Hoare triple {9559#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {9559#true} is VALID [2020-07-08 22:22:11,313 INFO L280 TraceCheckUtils]: 39: Hoare triple {9559#true} #t~switch4 := 0 == #t~nondet3; {9559#true} is VALID [2020-07-08 22:22:11,313 INFO L280 TraceCheckUtils]: 40: Hoare triple {9559#true} assume !#t~switch4; {9559#true} is VALID [2020-07-08 22:22:11,314 INFO L280 TraceCheckUtils]: 41: Hoare triple {9559#true} #t~switch4 := #t~switch4 || 1 == #t~nondet3; {9559#true} is VALID [2020-07-08 22:22:11,314 INFO L280 TraceCheckUtils]: 42: Hoare triple {9559#true} assume #t~switch4; {9559#true} is VALID [2020-07-08 22:22:11,314 INFO L280 TraceCheckUtils]: 43: Hoare triple {9559#true} assume 1 == ~ldv_s_misc_fops_file_operations~0; {9559#true} is VALID [2020-07-08 22:22:11,315 INFO L263 TraceCheckUtils]: 44: Hoare triple {9559#true} call #t~ret7 := misc_read(); {9559#true} is VALID [2020-07-08 22:22:11,315 INFO L280 TraceCheckUtils]: 45: Hoare triple {9559#true} #res := 0; {9559#true} is VALID [2020-07-08 22:22:11,315 INFO L280 TraceCheckUtils]: 46: Hoare triple {9559#true} assume true; {9559#true} is VALID [2020-07-08 22:22:11,316 INFO L275 TraceCheckUtils]: 47: Hoare quadruple {9559#true} {9559#true} #183#return; {9559#true} is VALID [2020-07-08 22:22:11,316 INFO L280 TraceCheckUtils]: 48: Hoare triple {9559#true} assume -2147483648 <= #t~ret7 && #t~ret7 <= 2147483647; {9559#true} is VALID [2020-07-08 22:22:11,316 INFO L280 TraceCheckUtils]: 49: Hoare triple {9559#true} havoc #t~ret7; {9559#true} is VALID [2020-07-08 22:22:11,316 INFO L280 TraceCheckUtils]: 50: Hoare triple {9559#true} #t~post8 := ~ldv_s_misc_fops_file_operations~0; {9559#true} is VALID [2020-07-08 22:22:11,317 INFO L280 TraceCheckUtils]: 51: Hoare triple {9559#true} ~ldv_s_misc_fops_file_operations~0 := 1 + #t~post8; {9559#true} is VALID [2020-07-08 22:22:11,317 INFO L280 TraceCheckUtils]: 52: Hoare triple {9559#true} havoc #t~post8; {9559#true} is VALID [2020-07-08 22:22:11,317 INFO L280 TraceCheckUtils]: 53: Hoare triple {9559#true} havoc #t~switch4; {9559#true} is VALID [2020-07-08 22:22:11,318 INFO L280 TraceCheckUtils]: 54: Hoare triple {9559#true} havoc #t~nondet3; {9559#true} is VALID [2020-07-08 22:22:11,318 INFO L280 TraceCheckUtils]: 55: Hoare triple {9559#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {9559#true} is VALID [2020-07-08 22:22:11,318 INFO L280 TraceCheckUtils]: 56: Hoare triple {9559#true} assume !!(0 != #t~nondet2); {9559#true} is VALID [2020-07-08 22:22:11,318 INFO L280 TraceCheckUtils]: 57: Hoare triple {9559#true} havoc #t~nondet2; {9559#true} is VALID [2020-07-08 22:22:11,319 INFO L280 TraceCheckUtils]: 58: Hoare triple {9559#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {9559#true} is VALID [2020-07-08 22:22:11,319 INFO L280 TraceCheckUtils]: 59: Hoare triple {9559#true} #t~switch4 := 0 == #t~nondet3; {9559#true} is VALID [2020-07-08 22:22:11,319 INFO L280 TraceCheckUtils]: 60: Hoare triple {9559#true} assume !#t~switch4; {9559#true} is VALID [2020-07-08 22:22:11,319 INFO L280 TraceCheckUtils]: 61: Hoare triple {9559#true} #t~switch4 := #t~switch4 || 1 == #t~nondet3; {9559#true} is VALID [2020-07-08 22:22:11,320 INFO L280 TraceCheckUtils]: 62: Hoare triple {9559#true} assume !#t~switch4; {9559#true} is VALID [2020-07-08 22:22:11,320 INFO L280 TraceCheckUtils]: 63: Hoare triple {9559#true} #t~switch4 := #t~switch4 || 2 == #t~nondet3; {9559#true} is VALID [2020-07-08 22:22:11,320 INFO L280 TraceCheckUtils]: 64: Hoare triple {9559#true} assume #t~switch4; {9559#true} is VALID [2020-07-08 22:22:11,321 INFO L280 TraceCheckUtils]: 65: Hoare triple {9559#true} assume 2 == ~ldv_s_misc_fops_file_operations~0; {9559#true} is VALID [2020-07-08 22:22:11,321 INFO L263 TraceCheckUtils]: 66: Hoare triple {9559#true} call #t~ret9 := misc_llseek(); {9559#true} is VALID [2020-07-08 22:22:11,321 INFO L280 TraceCheckUtils]: 67: Hoare triple {9559#true} #res := 0; {9559#true} is VALID [2020-07-08 22:22:11,322 INFO L280 TraceCheckUtils]: 68: Hoare triple {9559#true} assume true; {9559#true} is VALID [2020-07-08 22:22:11,323 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {9559#true} {9559#true} #185#return; {9559#true} is VALID [2020-07-08 22:22:11,323 INFO L280 TraceCheckUtils]: 70: Hoare triple {9559#true} assume -2147483648 <= #t~ret9 && #t~ret9 <= 2147483647; {9559#true} is VALID [2020-07-08 22:22:11,323 INFO L280 TraceCheckUtils]: 71: Hoare triple {9559#true} havoc #t~ret9; {9559#true} is VALID [2020-07-08 22:22:11,328 INFO L280 TraceCheckUtils]: 72: Hoare triple {9559#true} #t~post10 := ~ldv_s_misc_fops_file_operations~0; {9559#true} is VALID [2020-07-08 22:22:11,329 INFO L280 TraceCheckUtils]: 73: Hoare triple {9559#true} ~ldv_s_misc_fops_file_operations~0 := 1 + #t~post10; {9559#true} is VALID [2020-07-08 22:22:11,331 INFO L280 TraceCheckUtils]: 74: Hoare triple {9559#true} havoc #t~post10; {9559#true} is VALID [2020-07-08 22:22:11,332 INFO L280 TraceCheckUtils]: 75: Hoare triple {9559#true} havoc #t~switch4; {9559#true} is VALID [2020-07-08 22:22:11,336 INFO L280 TraceCheckUtils]: 76: Hoare triple {9559#true} havoc #t~nondet3; {9559#true} is VALID [2020-07-08 22:22:11,337 INFO L280 TraceCheckUtils]: 77: Hoare triple {9559#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {9559#true} is VALID [2020-07-08 22:22:11,337 INFO L280 TraceCheckUtils]: 78: Hoare triple {9559#true} assume !!(0 != #t~nondet2); {9559#true} is VALID [2020-07-08 22:22:11,337 INFO L280 TraceCheckUtils]: 79: Hoare triple {9559#true} havoc #t~nondet2; {9559#true} is VALID [2020-07-08 22:22:11,337 INFO L280 TraceCheckUtils]: 80: Hoare triple {9559#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {9559#true} is VALID [2020-07-08 22:22:11,338 INFO L280 TraceCheckUtils]: 81: Hoare triple {9559#true} #t~switch4 := 0 == #t~nondet3; {9559#true} is VALID [2020-07-08 22:22:11,338 INFO L280 TraceCheckUtils]: 82: Hoare triple {9559#true} assume !#t~switch4; {9559#true} is VALID [2020-07-08 22:22:11,338 INFO L280 TraceCheckUtils]: 83: Hoare triple {9559#true} #t~switch4 := #t~switch4 || 1 == #t~nondet3; {9559#true} is VALID [2020-07-08 22:22:11,341 INFO L280 TraceCheckUtils]: 84: Hoare triple {9559#true} assume !#t~switch4; {9559#true} is VALID [2020-07-08 22:22:11,341 INFO L280 TraceCheckUtils]: 85: Hoare triple {9559#true} #t~switch4 := #t~switch4 || 2 == #t~nondet3; {9559#true} is VALID [2020-07-08 22:22:11,341 INFO L280 TraceCheckUtils]: 86: Hoare triple {9559#true} assume !#t~switch4; {9559#true} is VALID [2020-07-08 22:22:11,341 INFO L280 TraceCheckUtils]: 87: Hoare triple {9559#true} #t~switch4 := #t~switch4 || 3 == #t~nondet3; {9559#true} is VALID [2020-07-08 22:22:11,342 INFO L280 TraceCheckUtils]: 88: Hoare triple {9559#true} assume #t~switch4; {9559#true} is VALID [2020-07-08 22:22:11,342 INFO L280 TraceCheckUtils]: 89: Hoare triple {9559#true} assume 3 == ~ldv_s_misc_fops_file_operations~0; {9559#true} is VALID [2020-07-08 22:22:11,342 INFO L263 TraceCheckUtils]: 90: Hoare triple {9559#true} call #t~ret11 := misc_release(); {9559#true} is VALID [2020-07-08 22:22:11,343 INFO L280 TraceCheckUtils]: 91: Hoare triple {9559#true} assume 0 != ~open_called~0; {9559#true} is VALID [2020-07-08 22:22:11,347 INFO L263 TraceCheckUtils]: 92: Hoare triple {9559#true} call mutex_lock(); {9588#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} is VALID [2020-07-08 22:22:11,347 INFO L280 TraceCheckUtils]: 93: Hoare triple {9588#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {9559#true} is VALID [2020-07-08 22:22:11,348 INFO L280 TraceCheckUtils]: 94: Hoare triple {9559#true} ~ldv_mutex~0 := 2; {9585#(= 2 ~ldv_mutex~0)} is VALID [2020-07-08 22:22:11,349 INFO L280 TraceCheckUtils]: 95: Hoare triple {9585#(= 2 ~ldv_mutex~0)} assume true; {9585#(= 2 ~ldv_mutex~0)} is VALID [2020-07-08 22:22:11,350 INFO L275 TraceCheckUtils]: 96: Hoare quadruple {9585#(= 2 ~ldv_mutex~0)} {9559#true} #169#return; {9585#(= 2 ~ldv_mutex~0)} is VALID [2020-07-08 22:22:11,354 INFO L263 TraceCheckUtils]: 97: Hoare triple {9585#(= 2 ~ldv_mutex~0)} call mutex_unlock(); {9585#(= 2 ~ldv_mutex~0)} is VALID [2020-07-08 22:22:11,355 INFO L280 TraceCheckUtils]: 98: Hoare triple {9585#(= 2 ~ldv_mutex~0)} assume !(2 == ~ldv_mutex~0); {9560#false} is VALID [2020-07-08 22:22:11,356 INFO L263 TraceCheckUtils]: 99: Hoare triple {9560#false} call __blast_assert(); {9560#false} is VALID [2020-07-08 22:22:11,356 INFO L280 TraceCheckUtils]: 100: Hoare triple {9560#false} assume !false; {9560#false} is VALID [2020-07-08 22:22:11,364 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-08 22:22:11,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366219919] [2020-07-08 22:22:11,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:22:11,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-08 22:22:11,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292289238] [2020-07-08 22:22:11,369 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2020-07-08 22:22:11,370 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:22:11,370 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-08 22:22:11,449 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 76 edges. 76 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:22:11,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-08 22:22:11,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:22:11,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-08 22:22:11,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 22:22:11,450 INFO L87 Difference]: Start difference. First operand 360 states and 461 transitions. Second operand 6 states. [2020-07-08 22:22:12,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:22:12,745 INFO L93 Difference]: Finished difference Result 679 states and 876 transitions. [2020-07-08 22:22:12,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-08 22:22:12,745 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2020-07-08 22:22:12,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:22:12,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 22:22:12,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 260 transitions. [2020-07-08 22:22:12,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 22:22:12,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 260 transitions. [2020-07-08 22:22:12,754 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 260 transitions. [2020-07-08 22:22:13,035 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 260 edges. 260 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:22:13,049 INFO L225 Difference]: With dead ends: 679 [2020-07-08 22:22:13,049 INFO L226 Difference]: Without dead ends: 333 [2020-07-08 22:22:13,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-08 22:22:13,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-07-08 22:22:13,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 192. [2020-07-08 22:22:13,435 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:22:13,435 INFO L82 GeneralOperation]: Start isEquivalent. First operand 333 states. Second operand 192 states. [2020-07-08 22:22:13,435 INFO L74 IsIncluded]: Start isIncluded. First operand 333 states. Second operand 192 states. [2020-07-08 22:22:13,435 INFO L87 Difference]: Start difference. First operand 333 states. Second operand 192 states. [2020-07-08 22:22:13,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:22:13,447 INFO L93 Difference]: Finished difference Result 333 states and 424 transitions. [2020-07-08 22:22:13,447 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 424 transitions. [2020-07-08 22:22:13,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:22:13,449 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:22:13,449 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 333 states. [2020-07-08 22:22:13,449 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 333 states. [2020-07-08 22:22:13,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:22:13,463 INFO L93 Difference]: Finished difference Result 333 states and 424 transitions. [2020-07-08 22:22:13,463 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 424 transitions. [2020-07-08 22:22:13,464 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:22:13,464 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:22:13,464 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:22:13,464 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:22:13,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-07-08 22:22:13,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 236 transitions. [2020-07-08 22:22:13,470 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 236 transitions. Word has length 101 [2020-07-08 22:22:13,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:22:13,470 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 236 transitions. [2020-07-08 22:22:13,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-08 22:22:13,471 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 192 states and 236 transitions. [2020-07-08 22:22:13,857 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 236 edges. 236 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:22:13,857 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 236 transitions. [2020-07-08 22:22:13,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-07-08 22:22:13,859 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:22:13,859 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 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, 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] [2020-07-08 22:22:13,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-08 22:22:13,860 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:22:13,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:22:13,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1350272370, now seen corresponding path program 1 times [2020-07-08 22:22:13,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:22:13,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754458959] [2020-07-08 22:22:13,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:22:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 22:22:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 22:22:13,990 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-08 22:22:13,990 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 22:22:13,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-08 22:22:14,059 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,061 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,062 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,062 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,063 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,063 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,065 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,066 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,066 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,068 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,068 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,069 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,070 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,072 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,073 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,074 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,074 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,074 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,075 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,075 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-07-08 22:22:14,089 WARN L170 areAnnotationChecker]: mutex_unlockENTRY has no Hoare annotation [2020-07-08 22:22:14,089 WARN L170 areAnnotationChecker]: mutex_unlockENTRY has no Hoare annotation [2020-07-08 22:22:14,089 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-08 22:22:14,089 WARN L170 areAnnotationChecker]: misc_releaseENTRY has no Hoare annotation [2020-07-08 22:22:14,089 WARN L170 areAnnotationChecker]: misc_releaseENTRY has no Hoare annotation [2020-07-08 22:22:14,089 WARN L170 areAnnotationChecker]: misc_readENTRY has no Hoare annotation [2020-07-08 22:22:14,089 WARN L170 areAnnotationChecker]: misc_openENTRY has no Hoare annotation [2020-07-08 22:22:14,090 WARN L170 areAnnotationChecker]: mutex_lockENTRY has no Hoare annotation [2020-07-08 22:22:14,090 WARN L170 areAnnotationChecker]: mutex_lockENTRY has no Hoare annotation [2020-07-08 22:22:14,090 WARN L170 areAnnotationChecker]: check_final_stateENTRY has no Hoare annotation [2020-07-08 22:22:14,090 WARN L170 areAnnotationChecker]: check_final_stateENTRY has no Hoare annotation [2020-07-08 22:22:14,090 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 22:22:14,090 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 22:22:14,090 WARN L170 areAnnotationChecker]: __blast_assertENTRY has no Hoare annotation [2020-07-08 22:22:14,090 WARN L170 areAnnotationChecker]: __blast_assertENTRY has no Hoare annotation [2020-07-08 22:22:14,090 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 22:22:14,091 WARN L170 areAnnotationChecker]: my_initENTRY has no Hoare annotation [2020-07-08 22:22:14,091 WARN L170 areAnnotationChecker]: misc_llseekENTRY has no Hoare annotation [2020-07-08 22:22:14,091 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-08 22:22:14,091 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-08 22:22:14,091 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-08 22:22:14,091 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-08 22:22:14,091 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-08 22:22:14,091 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-08 22:22:14,091 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-08 22:22:14,091 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-08 22:22:14,092 WARN L170 areAnnotationChecker]: misc_readFINAL has no Hoare annotation [2020-07-08 22:22:14,092 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-08 22:22:14,092 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-08 22:22:14,092 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-08 22:22:14,092 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-08 22:22:14,092 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-08 22:22:14,092 WARN L170 areAnnotationChecker]: L28-2 has no Hoare annotation [2020-07-08 22:22:14,092 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2020-07-08 22:22:14,093 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2020-07-08 22:22:14,093 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 22:22:14,093 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 22:22:14,093 WARN L170 areAnnotationChecker]: __blast_assertFINAL has no Hoare annotation [2020-07-08 22:22:14,093 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2020-07-08 22:22:14,093 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2020-07-08 22:22:14,093 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-08 22:22:14,093 WARN L170 areAnnotationChecker]: misc_llseekFINAL has no Hoare annotation [2020-07-08 22:22:14,093 WARN L170 areAnnotationChecker]: mutex_unlockFINAL has no Hoare annotation [2020-07-08 22:22:14,093 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 22:22:14,094 WARN L170 areAnnotationChecker]: L36-1 has no Hoare annotation [2020-07-08 22:22:14,094 WARN L170 areAnnotationChecker]: L36-1 has no Hoare annotation [2020-07-08 22:22:14,094 WARN L170 areAnnotationChecker]: L41-1 has no Hoare annotation [2020-07-08 22:22:14,094 WARN L170 areAnnotationChecker]: L41-1 has no Hoare annotation [2020-07-08 22:22:14,094 WARN L170 areAnnotationChecker]: misc_readEXIT has no Hoare annotation [2020-07-08 22:22:14,094 WARN L170 areAnnotationChecker]: L57-1 has no Hoare annotation [2020-07-08 22:22:14,094 WARN L170 areAnnotationChecker]: L57-2 has no Hoare annotation [2020-07-08 22:22:14,094 WARN L170 areAnnotationChecker]: mutex_lockFINAL has no Hoare annotation [2020-07-08 22:22:14,094 WARN L170 areAnnotationChecker]: check_final_stateEXIT has no Hoare annotation [2020-07-08 22:22:14,095 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 22:22:14,095 WARN L170 areAnnotationChecker]: __blast_assertEXIT has no Hoare annotation [2020-07-08 22:22:14,095 WARN L170 areAnnotationChecker]: __blast_assertEXIT has no Hoare annotation [2020-07-08 22:22:14,095 WARN L170 areAnnotationChecker]: __blast_assertEXIT has no Hoare annotation [2020-07-08 22:22:14,095 WARN L170 areAnnotationChecker]: L75-1 has no Hoare annotation [2020-07-08 22:22:14,095 WARN L170 areAnnotationChecker]: my_initFINAL has no Hoare annotation [2020-07-08 22:22:14,095 WARN L170 areAnnotationChecker]: misc_llseekEXIT has no Hoare annotation [2020-07-08 22:22:14,095 WARN L170 areAnnotationChecker]: mutex_unlockEXIT has no Hoare annotation [2020-07-08 22:22:14,095 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 22:22:14,096 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-08 22:22:14,096 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-08 22:22:14,096 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2020-07-08 22:22:14,096 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2020-07-08 22:22:14,096 WARN L170 areAnnotationChecker]: L61 has no Hoare annotation [2020-07-08 22:22:14,096 WARN L170 areAnnotationChecker]: mutex_lockEXIT has no Hoare annotation [2020-07-08 22:22:14,096 WARN L170 areAnnotationChecker]: mutex_lockEXIT has no Hoare annotation [2020-07-08 22:22:14,096 WARN L170 areAnnotationChecker]: mutex_lockEXIT has no Hoare annotation [2020-07-08 22:22:14,096 WARN L170 areAnnotationChecker]: L115 has no Hoare annotation [2020-07-08 22:22:14,097 WARN L170 areAnnotationChecker]: L75-2 has no Hoare annotation [2020-07-08 22:22:14,097 WARN L170 areAnnotationChecker]: my_initEXIT has no Hoare annotation [2020-07-08 22:22:14,097 WARN L170 areAnnotationChecker]: L98-1 has no Hoare annotation [2020-07-08 22:22:14,097 WARN L170 areAnnotationChecker]: misc_releaseFINAL has no Hoare annotation [2020-07-08 22:22:14,097 WARN L170 areAnnotationChecker]: L90-2 has no Hoare annotation [2020-07-08 22:22:14,097 WARN L170 areAnnotationChecker]: misc_openFINAL has no Hoare annotation [2020-07-08 22:22:14,097 WARN L170 areAnnotationChecker]: L62 has no Hoare annotation [2020-07-08 22:22:14,097 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 22:22:14,098 WARN L170 areAnnotationChecker]: L76-5 has no Hoare annotation [2020-07-08 22:22:14,098 WARN L170 areAnnotationChecker]: L76-5 has no Hoare annotation [2020-07-08 22:22:14,098 WARN L170 areAnnotationChecker]: L98-2 has no Hoare annotation [2020-07-08 22:22:14,098 WARN L170 areAnnotationChecker]: misc_releaseEXIT has no Hoare annotation [2020-07-08 22:22:14,098 WARN L170 areAnnotationChecker]: L91 has no Hoare annotation [2020-07-08 22:22:14,098 WARN L170 areAnnotationChecker]: misc_openEXIT has no Hoare annotation [2020-07-08 22:22:14,098 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 22:22:14,098 WARN L170 areAnnotationChecker]: L76-6 has no Hoare annotation [2020-07-08 22:22:14,098 WARN L170 areAnnotationChecker]: L76-6 has no Hoare annotation [2020-07-08 22:22:14,099 WARN L170 areAnnotationChecker]: L76-1 has no Hoare annotation [2020-07-08 22:22:14,099 WARN L170 areAnnotationChecker]: L76-1 has no Hoare annotation [2020-07-08 22:22:14,099 WARN L170 areAnnotationChecker]: L99 has no Hoare annotation [2020-07-08 22:22:14,099 WARN L170 areAnnotationChecker]: L106-1 has no Hoare annotation [2020-07-08 22:22:14,099 WARN L170 areAnnotationChecker]: L91-1 has no Hoare annotation [2020-07-08 22:22:14,099 WARN L170 areAnnotationChecker]: L82-1 has no Hoare annotation [2020-07-08 22:22:14,099 WARN L170 areAnnotationChecker]: L76-2 has no Hoare annotation [2020-07-08 22:22:14,099 WARN L170 areAnnotationChecker]: L76-4 has no Hoare annotation [2020-07-08 22:22:14,099 WARN L170 areAnnotationChecker]: L99-1 has no Hoare annotation [2020-07-08 22:22:14,100 WARN L170 areAnnotationChecker]: L106-2 has no Hoare annotation [2020-07-08 22:22:14,100 WARN L170 areAnnotationChecker]: L91-2 has no Hoare annotation [2020-07-08 22:22:14,100 WARN L170 areAnnotationChecker]: L82-2 has no Hoare annotation [2020-07-08 22:22:14,100 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2020-07-08 22:22:14,100 WARN L170 areAnnotationChecker]: L99-2 has no Hoare annotation [2020-07-08 22:22:14,100 WARN L170 areAnnotationChecker]: L107 has no Hoare annotation [2020-07-08 22:22:14,100 WARN L170 areAnnotationChecker]: L78-1 has no Hoare annotation [2020-07-08 22:22:14,100 WARN L170 areAnnotationChecker]: L83 has no Hoare annotation [2020-07-08 22:22:14,100 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-08 22:22:14,101 WARN L170 areAnnotationChecker]: L78-2 has no Hoare annotation [2020-07-08 22:22:14,101 WARN L170 areAnnotationChecker]: L83-1 has no Hoare annotation [2020-07-08 22:22:14,101 WARN L170 areAnnotationChecker]: L80-1 has no Hoare annotation [2020-07-08 22:22:14,101 WARN L170 areAnnotationChecker]: L80-1 has no Hoare annotation [2020-07-08 22:22:14,101 WARN L170 areAnnotationChecker]: L83-2 has no Hoare annotation [2020-07-08 22:22:14,101 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2020-07-08 22:22:14,101 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2020-07-08 22:22:14,101 WARN L170 areAnnotationChecker]: L88 has no Hoare annotation [2020-07-08 22:22:14,102 WARN L170 areAnnotationChecker]: L82 has no Hoare annotation [2020-07-08 22:22:14,102 WARN L170 areAnnotationChecker]: L82 has no Hoare annotation [2020-07-08 22:22:14,102 WARN L170 areAnnotationChecker]: L88-1 has no Hoare annotation [2020-07-08 22:22:14,102 WARN L170 areAnnotationChecker]: L88-1 has no Hoare annotation [2020-07-08 22:22:14,102 WARN L170 areAnnotationChecker]: L89 has no Hoare annotation [2020-07-08 22:22:14,102 WARN L170 areAnnotationChecker]: L89 has no Hoare annotation [2020-07-08 22:22:14,102 WARN L170 areAnnotationChecker]: L96 has no Hoare annotation [2020-07-08 22:22:14,102 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2020-07-08 22:22:14,102 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2020-07-08 22:22:14,103 WARN L170 areAnnotationChecker]: L96-1 has no Hoare annotation [2020-07-08 22:22:14,103 WARN L170 areAnnotationChecker]: L96-1 has no Hoare annotation [2020-07-08 22:22:14,103 WARN L170 areAnnotationChecker]: L97 has no Hoare annotation [2020-07-08 22:22:14,103 WARN L170 areAnnotationChecker]: L97 has no Hoare annotation [2020-07-08 22:22:14,103 WARN L170 areAnnotationChecker]: L104 has no Hoare annotation [2020-07-08 22:22:14,103 WARN L170 areAnnotationChecker]: L98 has no Hoare annotation [2020-07-08 22:22:14,103 WARN L170 areAnnotationChecker]: L98 has no Hoare annotation [2020-07-08 22:22:14,103 WARN L170 areAnnotationChecker]: L104-1 has no Hoare annotation [2020-07-08 22:22:14,104 WARN L170 areAnnotationChecker]: L104-1 has no Hoare annotation [2020-07-08 22:22:14,104 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-08 22:22:14,104 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-08 22:22:14,104 WARN L170 areAnnotationChecker]: L112 has no Hoare annotation [2020-07-08 22:22:14,104 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2020-07-08 22:22:14,104 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2020-07-08 22:22:14,104 WARN L170 areAnnotationChecker]: L112-1 has no Hoare annotation [2020-07-08 22:22:14,105 WARN L170 areAnnotationChecker]: L112-1 has no Hoare annotation [2020-07-08 22:22:14,105 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 22:22:14,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 10:22:14 BoogieIcfgContainer [2020-07-08 22:22:14,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 22:22:14,113 INFO L168 Benchmark]: Toolchain (without parser) took 17640.56 ms. Allocated memory was 137.9 MB in the beginning and 400.0 MB in the end (delta: 262.1 MB). Free memory was 102.5 MB in the beginning and 227.4 MB in the end (delta: -124.9 MB). Peak memory consumption was 137.2 MB. Max. memory is 7.1 GB. [2020-07-08 22:22:14,114 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-08 22:22:14,115 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.42 ms. Allocated memory is still 137.9 MB. Free memory was 102.3 MB in the beginning and 91.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-07-08 22:22:14,115 INFO L168 Benchmark]: Boogie Preprocessor took 130.25 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 91.1 MB in the beginning and 179.9 MB in the end (delta: -88.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-08 22:22:14,116 INFO L168 Benchmark]: RCFGBuilder took 605.26 ms. Allocated memory is still 202.4 MB. Free memory was 179.9 MB in the beginning and 144.3 MB in the end (delta: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2020-07-08 22:22:14,117 INFO L168 Benchmark]: TraceAbstraction took 16606.04 ms. Allocated memory was 202.4 MB in the beginning and 400.0 MB in the end (delta: 197.7 MB). Free memory was 143.7 MB in the beginning and 227.4 MB in the end (delta: -83.7 MB). Peak memory consumption was 113.9 MB. Max. memory is 7.1 GB. [2020-07-08 22:22:14,120 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 0.17 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 290.42 ms. Allocated memory is still 137.9 MB. Free memory was 102.3 MB in the beginning and 91.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.25 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 91.1 MB in the beginning and 179.9 MB in the end (delta: -88.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 605.26 ms. Allocated memory is still 202.4 MB. Free memory was 179.9 MB in the beginning and 144.3 MB in the end (delta: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16606.04 ms. Allocated memory was 202.4 MB in the beginning and 400.0 MB in the end (delta: 197.7 MB). Free memory was 143.7 MB in the beginning and 227.4 MB in the end (delta: -83.7 MB). Peak memory consumption was 113.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int ldv_mutex = 1; VAL [\old(ldv_mutex)=5, \old(open_called)=4, ldv_mutex=1, open_called=4] [L11] int open_called = 0; VAL [\old(ldv_mutex)=5, \old(open_called)=4, ldv_mutex=1, open_called=0] [L74] int ldv_s_misc_fops_file_operations = 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L75] CALL my_init() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L69] open_called = 0 VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L70] return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L75] RET my_init() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, my_init()=0, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L80] case 0: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L81] COND TRUE ldv_s_misc_fops_file_operations==0 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L82] CALL misc_open() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L57] COND TRUE __VERIFIER_nondet_int() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, open_called=0] [L59] return 1; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=1, ldv_mutex=1, open_called=0] [L82] RET misc_open() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, misc_open()=1, open_called=0] [L83] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L80] case 0: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L88] case 1: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L89] COND TRUE ldv_s_misc_fops_file_operations==1 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L90] CALL misc_read() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L52] return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L90] RET misc_read() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, misc_read()=0, open_called=0] [L91] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L80] case 0: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L88] case 1: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L96] case 2: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L97] COND TRUE ldv_s_misc_fops_file_operations==2 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L98] CALL misc_llseek() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L48] return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L98] RET misc_llseek() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, misc_llseek()=0, open_called=0] [L99] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L80] case 0: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L88] case 1: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L96] case 2: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L104] case 3: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L105] COND TRUE ldv_s_misc_fops_file_operations==3 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L106] CALL misc_release() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L34] COND FALSE !(\read(open_called)) VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L41] CALL mutex_lock() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L16] (ldv_mutex == 1) ? 0 : __blast_assert() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L17] ldv_mutex = 2 VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=2, open_called=0] [L41] RET mutex_lock() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=2, open_called=0] [L42] CALL mutex_lock() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L16] (ldv_mutex == 1) ? 0 : __blast_assert() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L16] CALL __blast_assert() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L4] __VERIFIER_error() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.4s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 593 SDtfs, 874 SDslu, 1440 SDs, 0 SdLazy, 863 SolverSat, 219 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=360occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 471 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 418 NumberOfCodeBlocks, 418 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 34423 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 72/78 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...