/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 0.1.25-8fc6572 [2020-07-11 01:05:19,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-11 01:05:19,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-11 01:05:19,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-11 01:05:19,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-11 01:05:19,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-11 01:05:19,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-11 01:05:19,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-11 01:05:19,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-11 01:05:19,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-11 01:05:19,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-11 01:05:19,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-11 01:05:19,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-11 01:05:19,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-11 01:05:19,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-11 01:05:19,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-11 01:05:19,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-11 01:05:19,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-11 01:05:19,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-11 01:05:19,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-11 01:05:19,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-11 01:05:19,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-11 01:05:19,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-11 01:05:19,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-11 01:05:19,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-11 01:05:19,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-11 01:05:19,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-11 01:05:19,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-11 01:05:19,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-11 01:05:19,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-11 01:05:19,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-11 01:05:19,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-11 01:05:19,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-11 01:05:19,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-11 01:05:19,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-11 01:05:19,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-11 01:05:19,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-11 01:05:19,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-11 01:05:19,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-11 01:05:19,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-11 01:05:19,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-11 01:05:19,364 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-11 01:05:19,374 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-11 01:05:19,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-11 01:05:19,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-11 01:05:19,376 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-11 01:05:19,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-11 01:05:19,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-11 01:05:19,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-11 01:05:19,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-11 01:05:19,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-11 01:05:19,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-11 01:05:19,377 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-11 01:05:19,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-11 01:05:19,377 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-11 01:05:19,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-11 01:05:19,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-11 01:05:19,378 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-11 01:05:19,378 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-11 01:05:19,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-11 01:05:19,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-11 01:05:19,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-11 01:05:19,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-11 01:05:19,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-11 01:05:19,379 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 [2020-07-11 01:05:19,670 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-11 01:05:19,684 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-11 01:05:19,687 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-11 01:05:19,688 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-11 01:05:19,689 INFO L275 PluginConnector]: CDTParser initialized [2020-07-11 01:05:19,689 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/stateful_check.c [2020-07-11 01:05:19,759 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ddd06b52/f4269cc6da384b3b9ca9c2e6d197c610/FLAG48fa56698 [2020-07-11 01:05:20,245 INFO L306 CDTParser]: Found 1 translation units. [2020-07-11 01:05:20,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/stateful_check.c [2020-07-11 01:05:20,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ddd06b52/f4269cc6da384b3b9ca9c2e6d197c610/FLAG48fa56698 [2020-07-11 01:05:20,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ddd06b52/f4269cc6da384b3b9ca9c2e6d197c610 [2020-07-11 01:05:20,616 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-11 01:05:20,620 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-11 01:05:20,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-11 01:05:20,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-11 01:05:20,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-11 01:05:20,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 01:05:20" (1/1) ... [2020-07-11 01:05:20,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a106e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:20, skipping insertion in model container [2020-07-11 01:05:20,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 01:05:20" (1/1) ... [2020-07-11 01:05:20,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-11 01:05:20,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-11 01:05:20,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 01:05:20,876 INFO L203 MainTranslator]: Completed pre-run [2020-07-11 01:05:20,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 01:05:20,927 INFO L208 MainTranslator]: Completed translation [2020-07-11 01:05:20,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:20 WrapperNode [2020-07-11 01:05:20,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-11 01:05:20,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-11 01:05:20,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-11 01:05:20,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-11 01:05:20,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:20" (1/1) ... [2020-07-11 01:05:20,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:20" (1/1) ... [2020-07-11 01:05:20,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:20" (1/1) ... [2020-07-11 01:05:20,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:20" (1/1) ... [2020-07-11 01:05:21,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:20" (1/1) ... [2020-07-11 01:05:21,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:20" (1/1) ... [2020-07-11 01:05:21,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:20" (1/1) ... [2020-07-11 01:05:21,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-11 01:05:21,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-11 01:05:21,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-11 01:05:21,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-11 01:05:21,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:20" (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 [2020-07-11 01:05:21,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-11 01:05:21,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-11 01:05:21,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-11 01:05:21,124 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-07-11 01:05:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-07-11 01:05:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2020-07-11 01:05:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2020-07-11 01:05:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2020-07-11 01:05:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2020-07-11 01:05:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2020-07-11 01:05:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2020-07-11 01:05:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-11 01:05:21,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-11 01:05:21,126 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-11 01:05:21,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-11 01:05:21,126 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-07-11 01:05:21,126 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-07-11 01:05:21,127 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2020-07-11 01:05:21,127 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2020-07-11 01:05:21,127 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2020-07-11 01:05:21,127 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2020-07-11 01:05:21,127 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2020-07-11 01:05:21,127 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2020-07-11 01:05:21,128 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-11 01:05:21,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-11 01:05:21,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-11 01:05:21,666 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-11 01:05:21,667 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-11 01:05:21,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 01:05:21 BoogieIcfgContainer [2020-07-11 01:05:21,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-11 01:05:21,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-11 01:05:21,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-11 01:05:21,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-11 01:05:21,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.07 01:05:20" (1/3) ... [2020-07-11 01:05:21,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c7db24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 01:05:21, skipping insertion in model container [2020-07-11 01:05:21,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:20" (2/3) ... [2020-07-11 01:05:21,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c7db24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 01:05:21, skipping insertion in model container [2020-07-11 01:05:21,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 01:05:21" (3/3) ... [2020-07-11 01:05:21,682 INFO L109 eAbstractionObserver]: Analyzing ICFG stateful_check.c [2020-07-11 01:05:21,693 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-11 01:05:21,702 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-11 01:05:21,717 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-11 01:05:21,742 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-11 01:05:21,742 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-11 01:05:21,742 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-11 01:05:21,743 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-11 01:05:21,743 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-11 01:05:21,743 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-11 01:05:21,744 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-11 01:05:21,744 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-11 01:05:21,763 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-07-11 01:05:21,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-11 01:05:21,775 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:05:21,776 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:05:21,776 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:05:21,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:05:21,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1008214113, now seen corresponding path program 1 times [2020-07-11 01:05:21,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:05:21,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717748230] [2020-07-11 01:05:21,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:05:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:21,990 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 [2020-07-11 01:05:21,990 INFO L280 TraceCheckUtils]: 1: Hoare triple {108#true} ~open_called~0 := 0; {108#true} is VALID [2020-07-11 01:05:21,991 INFO L280 TraceCheckUtils]: 2: Hoare triple {108#true} assume true; {108#true} is VALID [2020-07-11 01:05:21,991 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {108#true} {108#true} #195#return; {108#true} is VALID [2020-07-11 01:05:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:22,012 INFO L280 TraceCheckUtils]: 0: Hoare triple {119#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {108#true} is VALID [2020-07-11 01:05:22,012 INFO L280 TraceCheckUtils]: 1: Hoare triple {108#true} #res := 0; {108#true} is VALID [2020-07-11 01:05:22,013 INFO L280 TraceCheckUtils]: 2: Hoare triple {108#true} assume true; {108#true} is VALID [2020-07-11 01:05:22,013 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {108#true} {108#true} #179#return; {108#true} is VALID [2020-07-11 01:05:22,015 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 [2020-07-11 01:05:22,016 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 [2020-07-11 01:05:22,016 INFO L280 TraceCheckUtils]: 2: Hoare triple {108#true} ~open_called~0 := 0; {108#true} is VALID [2020-07-11 01:05:22,016 INFO L280 TraceCheckUtils]: 3: Hoare triple {108#true} assume true; {108#true} is VALID [2020-07-11 01:05:22,017 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {108#true} {108#true} #195#return; {108#true} is VALID [2020-07-11 01:05:22,017 INFO L263 TraceCheckUtils]: 5: Hoare triple {108#true} call #t~ret12 := main(); {108#true} is VALID [2020-07-11 01:05:22,018 INFO L280 TraceCheckUtils]: 6: Hoare triple {108#true} ~ldv_s_misc_fops_file_operations~0 := 0; {108#true} is VALID [2020-07-11 01:05:22,019 INFO L263 TraceCheckUtils]: 7: Hoare triple {108#true} call #t~ret1 := my_init(); {119#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-11 01:05:22,019 INFO L280 TraceCheckUtils]: 8: Hoare triple {119#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {108#true} is VALID [2020-07-11 01:05:22,020 INFO L280 TraceCheckUtils]: 9: Hoare triple {108#true} #res := 0; {108#true} is VALID [2020-07-11 01:05:22,020 INFO L280 TraceCheckUtils]: 10: Hoare triple {108#true} assume true; {108#true} is VALID [2020-07-11 01:05:22,021 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {108#true} {108#true} #179#return; {108#true} is VALID [2020-07-11 01:05:22,021 INFO L280 TraceCheckUtils]: 12: Hoare triple {108#true} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {108#true} is VALID [2020-07-11 01:05:22,022 INFO L280 TraceCheckUtils]: 13: Hoare triple {108#true} havoc #t~ret1; {108#true} is VALID [2020-07-11 01:05:22,023 INFO L280 TraceCheckUtils]: 14: Hoare triple {108#true} assume !true; {109#false} is VALID [2020-07-11 01:05:22,023 INFO L263 TraceCheckUtils]: 15: Hoare triple {109#false} call check_final_state(); {109#false} is VALID [2020-07-11 01:05:22,024 INFO L280 TraceCheckUtils]: 16: Hoare triple {109#false} assume !(1 == ~ldv_mutex~0); {109#false} is VALID [2020-07-11 01:05:22,024 INFO L263 TraceCheckUtils]: 17: Hoare triple {109#false} call __blast_assert(); {109#false} is VALID [2020-07-11 01:05:22,024 INFO L280 TraceCheckUtils]: 18: Hoare triple {109#false} assume !false; {109#false} is VALID [2020-07-11 01:05:22,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:05:22,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717748230] [2020-07-11 01:05:22,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:05:22,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-11 01:05:22,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573032530] [2020-07-11 01:05:22,039 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-07-11 01:05:22,042 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:05:22,046 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-11 01:05:22,082 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:22,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-11 01:05:22,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:05:22,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-11 01:05:22,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-11 01:05:22,095 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 4 states. [2020-07-11 01:05:22,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:22,833 INFO L93 Difference]: Finished difference Result 199 states and 244 transitions. [2020-07-11 01:05:22,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-11 01:05:22,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-07-11 01:05:22,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:05:22,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-11 01:05:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 244 transitions. [2020-07-11 01:05:22,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-11 01:05:22,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 244 transitions. [2020-07-11 01:05:22,894 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 244 transitions. [2020-07-11 01:05:23,196 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 244 edges. 244 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:23,214 INFO L225 Difference]: With dead ends: 199 [2020-07-11 01:05:23,215 INFO L226 Difference]: Without dead ends: 101 [2020-07-11 01:05:23,220 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 [2020-07-11 01:05:23,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-07-11 01:05:23,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2020-07-11 01:05:23,398 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:05:23,399 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 96 states. [2020-07-11 01:05:23,399 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 96 states. [2020-07-11 01:05:23,400 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 96 states. [2020-07-11 01:05:23,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:23,411 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2020-07-11 01:05:23,411 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-07-11 01:05:23,413 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:23,413 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:05:23,413 INFO L74 IsIncluded]: Start isIncluded. First operand 96 states. Second operand 101 states. [2020-07-11 01:05:23,414 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 101 states. [2020-07-11 01:05:23,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:23,424 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2020-07-11 01:05:23,424 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-07-11 01:05:23,426 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:23,426 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:05:23,426 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:05:23,426 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:05:23,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-07-11 01:05:23,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-07-11 01:05:23,435 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 19 [2020-07-11 01:05:23,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:05:23,436 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-07-11 01:05:23,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-11 01:05:23,437 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 96 states and 111 transitions. [2020-07-11 01:05:23,570 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:23,570 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-07-11 01:05:23,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-11 01:05:23,571 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:05:23,571 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] [2020-07-11 01:05:23,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-11 01:05:23,572 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:05:23,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:05:23,573 INFO L82 PathProgramCache]: Analyzing trace with hash 837576233, now seen corresponding path program 1 times [2020-07-11 01:05:23,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:05:23,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519637041] [2020-07-11 01:05:23,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:05:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:23,668 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 [2020-07-11 01:05:23,669 INFO L280 TraceCheckUtils]: 1: Hoare triple {920#(= 1 ~ldv_mutex~0)} ~open_called~0 := 0; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:23,670 INFO L280 TraceCheckUtils]: 2: Hoare triple {920#(= 1 ~ldv_mutex~0)} assume true; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:23,671 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {920#(= 1 ~ldv_mutex~0)} {914#true} #195#return; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:23,686 INFO L280 TraceCheckUtils]: 0: Hoare triple {926#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {914#true} is VALID [2020-07-11 01:05:23,686 INFO L280 TraceCheckUtils]: 1: Hoare triple {914#true} #res := 0; {914#true} is VALID [2020-07-11 01:05:23,686 INFO L280 TraceCheckUtils]: 2: Hoare triple {914#true} assume true; {914#true} is VALID [2020-07-11 01:05:23,687 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {914#true} {920#(= 1 ~ldv_mutex~0)} #179#return; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:23,689 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 [2020-07-11 01:05:23,689 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 [2020-07-11 01:05:23,690 INFO L280 TraceCheckUtils]: 2: Hoare triple {920#(= 1 ~ldv_mutex~0)} ~open_called~0 := 0; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:23,691 INFO L280 TraceCheckUtils]: 3: Hoare triple {920#(= 1 ~ldv_mutex~0)} assume true; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:23,692 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {920#(= 1 ~ldv_mutex~0)} {914#true} #195#return; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:23,692 INFO L263 TraceCheckUtils]: 5: Hoare triple {920#(= 1 ~ldv_mutex~0)} call #t~ret12 := main(); {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:23,693 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 [2020-07-11 01:05:23,694 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 [2020-07-11 01:05:23,694 INFO L280 TraceCheckUtils]: 8: Hoare triple {926#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {914#true} is VALID [2020-07-11 01:05:23,695 INFO L280 TraceCheckUtils]: 9: Hoare triple {914#true} #res := 0; {914#true} is VALID [2020-07-11 01:05:23,695 INFO L280 TraceCheckUtils]: 10: Hoare triple {914#true} assume true; {914#true} is VALID [2020-07-11 01:05:23,696 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {914#true} {920#(= 1 ~ldv_mutex~0)} #179#return; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:23,697 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 [2020-07-11 01:05:23,697 INFO L280 TraceCheckUtils]: 13: Hoare triple {920#(= 1 ~ldv_mutex~0)} havoc #t~ret1; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:23,698 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 [2020-07-11 01:05:23,699 INFO L280 TraceCheckUtils]: 15: Hoare triple {920#(= 1 ~ldv_mutex~0)} assume !(0 != #t~nondet2); {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:23,699 INFO L280 TraceCheckUtils]: 16: Hoare triple {920#(= 1 ~ldv_mutex~0)} havoc #t~nondet2; {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:23,700 INFO L263 TraceCheckUtils]: 17: Hoare triple {920#(= 1 ~ldv_mutex~0)} call check_final_state(); {920#(= 1 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:23,701 INFO L280 TraceCheckUtils]: 18: Hoare triple {920#(= 1 ~ldv_mutex~0)} assume !(1 == ~ldv_mutex~0); {915#false} is VALID [2020-07-11 01:05:23,701 INFO L263 TraceCheckUtils]: 19: Hoare triple {915#false} call __blast_assert(); {915#false} is VALID [2020-07-11 01:05:23,701 INFO L280 TraceCheckUtils]: 20: Hoare triple {915#false} assume !false; {915#false} is VALID [2020-07-11 01:05:23,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:05:23,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519637041] [2020-07-11 01:05:23,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:05:23,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-11 01:05:23,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63127109] [2020-07-11 01:05:23,706 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-07-11 01:05:23,706 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:05:23,707 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-11 01:05:23,728 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:23,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-11 01:05:23,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:05:23,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-11 01:05:23,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-11 01:05:23,730 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 5 states. [2020-07-11 01:05:24,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:24,583 INFO L93 Difference]: Finished difference Result 171 states and 202 transitions. [2020-07-11 01:05:24,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-11 01:05:24,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-07-11 01:05:24,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:05:24,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-11 01:05:24,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 202 transitions. [2020-07-11 01:05:24,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-11 01:05:24,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 202 transitions. [2020-07-11 01:05:24,593 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 202 transitions. [2020-07-11 01:05:24,819 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 202 edges. 202 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:24,827 INFO L225 Difference]: With dead ends: 171 [2020-07-11 01:05:24,828 INFO L226 Difference]: Without dead ends: 164 [2020-07-11 01:05:24,829 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 [2020-07-11 01:05:24,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-07-11 01:05:24,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 160. [2020-07-11 01:05:24,994 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:05:24,994 INFO L82 GeneralOperation]: Start isEquivalent. First operand 164 states. Second operand 160 states. [2020-07-11 01:05:24,994 INFO L74 IsIncluded]: Start isIncluded. First operand 164 states. Second operand 160 states. [2020-07-11 01:05:24,994 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 160 states. [2020-07-11 01:05:25,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:25,009 INFO L93 Difference]: Finished difference Result 164 states and 194 transitions. [2020-07-11 01:05:25,009 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 194 transitions. [2020-07-11 01:05:25,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:25,011 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:05:25,011 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 164 states. [2020-07-11 01:05:25,012 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 164 states. [2020-07-11 01:05:25,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:25,025 INFO L93 Difference]: Finished difference Result 164 states and 194 transitions. [2020-07-11 01:05:25,026 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 194 transitions. [2020-07-11 01:05:25,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:25,027 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:05:25,027 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:05:25,027 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:05:25,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-07-11 01:05:25,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 190 transitions. [2020-07-11 01:05:25,040 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 190 transitions. Word has length 21 [2020-07-11 01:05:25,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:05:25,040 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 190 transitions. [2020-07-11 01:05:25,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-11 01:05:25,041 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 160 states and 190 transitions. [2020-07-11 01:05:25,259 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 190 edges. 190 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:25,259 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 190 transitions. [2020-07-11 01:05:25,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-11 01:05:25,261 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:05:25,261 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] [2020-07-11 01:05:25,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-11 01:05:25,262 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:05:25,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:05:25,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1006142192, now seen corresponding path program 1 times [2020-07-11 01:05:25,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:05:25,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821940037] [2020-07-11 01:05:25,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:05:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:25,353 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 [2020-07-11 01:05:25,354 INFO L280 TraceCheckUtils]: 1: Hoare triple {1923#true} ~open_called~0 := 0; {1923#true} is VALID [2020-07-11 01:05:25,354 INFO L280 TraceCheckUtils]: 2: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-11 01:05:25,355 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1923#true} {1923#true} #195#return; {1923#true} is VALID [2020-07-11 01:05:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:25,368 INFO L280 TraceCheckUtils]: 0: Hoare triple {1939#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {1923#true} is VALID [2020-07-11 01:05:25,368 INFO L280 TraceCheckUtils]: 1: Hoare triple {1923#true} #res := 0; {1923#true} is VALID [2020-07-11 01:05:25,369 INFO L280 TraceCheckUtils]: 2: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-11 01:05:25,370 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 [2020-07-11 01:05:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:25,383 INFO L280 TraceCheckUtils]: 0: Hoare triple {1940#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {1923#true} is VALID [2020-07-11 01:05:25,384 INFO L280 TraceCheckUtils]: 1: Hoare triple {1923#true} ~ldv_mutex~0 := 2; {1923#true} is VALID [2020-07-11 01:05:25,384 INFO L280 TraceCheckUtils]: 2: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-11 01:05:25,384 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1923#true} {1924#false} #169#return; {1924#false} is VALID [2020-07-11 01:05:25,385 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 [2020-07-11 01:05:25,385 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 [2020-07-11 01:05:25,386 INFO L280 TraceCheckUtils]: 2: Hoare triple {1923#true} ~open_called~0 := 0; {1923#true} is VALID [2020-07-11 01:05:25,386 INFO L280 TraceCheckUtils]: 3: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-11 01:05:25,386 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1923#true} {1923#true} #195#return; {1923#true} is VALID [2020-07-11 01:05:25,387 INFO L263 TraceCheckUtils]: 5: Hoare triple {1923#true} call #t~ret12 := main(); {1923#true} is VALID [2020-07-11 01:05:25,388 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 [2020-07-11 01:05:25,388 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 [2020-07-11 01:05:25,389 INFO L280 TraceCheckUtils]: 8: Hoare triple {1939#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {1923#true} is VALID [2020-07-11 01:05:25,389 INFO L280 TraceCheckUtils]: 9: Hoare triple {1923#true} #res := 0; {1923#true} is VALID [2020-07-11 01:05:25,389 INFO L280 TraceCheckUtils]: 10: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-11 01:05:25,390 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 [2020-07-11 01:05:25,391 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 [2020-07-11 01:05:25,392 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 [2020-07-11 01:05:25,392 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 [2020-07-11 01:05:25,393 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 [2020-07-11 01:05:25,394 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 [2020-07-11 01:05:25,394 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 [2020-07-11 01:05:25,395 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 [2020-07-11 01:05:25,396 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 [2020-07-11 01:05:25,397 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 [2020-07-11 01:05:25,397 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 [2020-07-11 01:05:25,398 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 [2020-07-11 01:05:25,399 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 [2020-07-11 01:05:25,399 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 [2020-07-11 01:05:25,400 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 [2020-07-11 01:05:25,401 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 [2020-07-11 01:05:25,401 INFO L263 TraceCheckUtils]: 27: Hoare triple {1924#false} call #t~ret11 := misc_release(); {1924#false} is VALID [2020-07-11 01:05:25,401 INFO L280 TraceCheckUtils]: 28: Hoare triple {1924#false} assume 0 != ~open_called~0; {1924#false} is VALID [2020-07-11 01:05:25,402 INFO L263 TraceCheckUtils]: 29: Hoare triple {1924#false} call mutex_lock(); {1940#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} is VALID [2020-07-11 01:05:25,402 INFO L280 TraceCheckUtils]: 30: Hoare triple {1940#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {1923#true} is VALID [2020-07-11 01:05:25,402 INFO L280 TraceCheckUtils]: 31: Hoare triple {1923#true} ~ldv_mutex~0 := 2; {1923#true} is VALID [2020-07-11 01:05:25,403 INFO L280 TraceCheckUtils]: 32: Hoare triple {1923#true} assume true; {1923#true} is VALID [2020-07-11 01:05:25,403 INFO L275 TraceCheckUtils]: 33: Hoare quadruple {1923#true} {1924#false} #169#return; {1924#false} is VALID [2020-07-11 01:05:25,403 INFO L263 TraceCheckUtils]: 34: Hoare triple {1924#false} call mutex_unlock(); {1924#false} is VALID [2020-07-11 01:05:25,404 INFO L280 TraceCheckUtils]: 35: Hoare triple {1924#false} assume !(2 == ~ldv_mutex~0); {1924#false} is VALID [2020-07-11 01:05:25,404 INFO L263 TraceCheckUtils]: 36: Hoare triple {1924#false} call __blast_assert(); {1924#false} is VALID [2020-07-11 01:05:25,404 INFO L280 TraceCheckUtils]: 37: Hoare triple {1924#false} assume !false; {1924#false} is VALID [2020-07-11 01:05:25,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:05:25,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821940037] [2020-07-11 01:05:25,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:05:25,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-11 01:05:25,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14888877] [2020-07-11 01:05:25,408 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-11 01:05:25,408 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:05:25,409 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-11 01:05:25,446 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:25,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-11 01:05:25,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:05:25,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-11 01:05:25,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-11 01:05:25,447 INFO L87 Difference]: Start difference. First operand 160 states and 190 transitions. Second operand 6 states. [2020-07-11 01:05:26,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:26,509 INFO L93 Difference]: Finished difference Result 411 states and 514 transitions. [2020-07-11 01:05:26,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-11 01:05:26,510 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-11 01:05:26,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:05:26,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-11 01:05:26,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 328 transitions. [2020-07-11 01:05:26,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-11 01:05:26,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 328 transitions. [2020-07-11 01:05:26,529 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 328 transitions. [2020-07-11 01:05:26,869 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 328 edges. 328 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:26,877 INFO L225 Difference]: With dead ends: 411 [2020-07-11 01:05:26,878 INFO L226 Difference]: Without dead ends: 265 [2020-07-11 01:05:26,880 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 [2020-07-11 01:05:26,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-07-11 01:05:27,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 200. [2020-07-11 01:05:27,143 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:05:27,143 INFO L82 GeneralOperation]: Start isEquivalent. First operand 265 states. Second operand 200 states. [2020-07-11 01:05:27,143 INFO L74 IsIncluded]: Start isIncluded. First operand 265 states. Second operand 200 states. [2020-07-11 01:05:27,143 INFO L87 Difference]: Start difference. First operand 265 states. Second operand 200 states. [2020-07-11 01:05:27,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:27,156 INFO L93 Difference]: Finished difference Result 265 states and 329 transitions. [2020-07-11 01:05:27,156 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 329 transitions. [2020-07-11 01:05:27,158 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:27,158 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:05:27,158 INFO L74 IsIncluded]: Start isIncluded. First operand 200 states. Second operand 265 states. [2020-07-11 01:05:27,158 INFO L87 Difference]: Start difference. First operand 200 states. Second operand 265 states. [2020-07-11 01:05:27,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:27,172 INFO L93 Difference]: Finished difference Result 265 states and 329 transitions. [2020-07-11 01:05:27,172 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 329 transitions. [2020-07-11 01:05:27,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:27,173 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:05:27,174 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:05:27,174 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:05:27,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-07-11 01:05:27,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 243 transitions. [2020-07-11 01:05:27,183 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 243 transitions. Word has length 38 [2020-07-11 01:05:27,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:05:27,183 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 243 transitions. [2020-07-11 01:05:27,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-11 01:05:27,183 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 200 states and 243 transitions. [2020-07-11 01:05:27,471 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 243 edges. 243 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:27,471 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 243 transitions. [2020-07-11 01:05:27,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-11 01:05:27,473 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:05:27,473 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] [2020-07-11 01:05:27,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-11 01:05:27,474 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:05:27,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:05:27,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1762986505, now seen corresponding path program 1 times [2020-07-11 01:05:27,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:05:27,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291672931] [2020-07-11 01:05:27,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:05:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:27,594 INFO L280 TraceCheckUtils]: 0: Hoare triple {3722#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {3699#true} is VALID [2020-07-11 01:05:27,595 INFO L280 TraceCheckUtils]: 1: Hoare triple {3699#true} ~open_called~0 := 0; {3699#true} is VALID [2020-07-11 01:05:27,595 INFO L280 TraceCheckUtils]: 2: Hoare triple {3699#true} assume true; {3699#true} is VALID [2020-07-11 01:05:27,597 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3699#true} {3699#true} #195#return; {3699#true} is VALID [2020-07-11 01:05:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:27,614 INFO L280 TraceCheckUtils]: 0: Hoare triple {3723#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {3699#true} is VALID [2020-07-11 01:05:27,615 INFO L280 TraceCheckUtils]: 1: Hoare triple {3699#true} #res := 0; {3699#true} is VALID [2020-07-11 01:05:27,615 INFO L280 TraceCheckUtils]: 2: Hoare triple {3699#true} assume true; {3699#true} is VALID [2020-07-11 01:05:27,616 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3699#true} {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} #179#return; {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-11 01:05:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:27,624 INFO L280 TraceCheckUtils]: 0: Hoare triple {3723#(= ~open_called~0 |old(~open_called~0)|)} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {3699#true} is VALID [2020-07-11 01:05:27,624 INFO L280 TraceCheckUtils]: 1: Hoare triple {3699#true} assume 0 != #t~nondet0; {3699#true} is VALID [2020-07-11 01:05:27,625 INFO L280 TraceCheckUtils]: 2: Hoare triple {3699#true} havoc #t~nondet0; {3699#true} is VALID [2020-07-11 01:05:27,625 INFO L280 TraceCheckUtils]: 3: Hoare triple {3699#true} #res := 1; {3699#true} is VALID [2020-07-11 01:05:27,625 INFO L280 TraceCheckUtils]: 4: Hoare triple {3699#true} assume true; {3699#true} is VALID [2020-07-11 01:05:27,626 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {3699#true} {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} #181#return; {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-11 01:05:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:27,641 INFO L280 TraceCheckUtils]: 0: Hoare triple {3724#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {3699#true} is VALID [2020-07-11 01:05:27,642 INFO L280 TraceCheckUtils]: 1: Hoare triple {3699#true} ~ldv_mutex~0 := 2; {3699#true} is VALID [2020-07-11 01:05:27,642 INFO L280 TraceCheckUtils]: 2: Hoare triple {3699#true} assume true; {3699#true} is VALID [2020-07-11 01:05:27,642 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3699#true} {3700#false} #169#return; {3700#false} is VALID [2020-07-11 01:05:27,643 INFO L263 TraceCheckUtils]: 0: Hoare triple {3699#true} call ULTIMATE.init(); {3722#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} is VALID [2020-07-11 01:05:27,644 INFO L280 TraceCheckUtils]: 1: Hoare triple {3722#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {3699#true} is VALID [2020-07-11 01:05:27,644 INFO L280 TraceCheckUtils]: 2: Hoare triple {3699#true} ~open_called~0 := 0; {3699#true} is VALID [2020-07-11 01:05:27,644 INFO L280 TraceCheckUtils]: 3: Hoare triple {3699#true} assume true; {3699#true} is VALID [2020-07-11 01:05:27,645 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3699#true} {3699#true} #195#return; {3699#true} is VALID [2020-07-11 01:05:27,645 INFO L263 TraceCheckUtils]: 5: Hoare triple {3699#true} call #t~ret12 := main(); {3699#true} is VALID [2020-07-11 01:05:27,646 INFO L280 TraceCheckUtils]: 6: Hoare triple {3699#true} ~ldv_s_misc_fops_file_operations~0 := 0; {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-11 01:05:27,647 INFO L263 TraceCheckUtils]: 7: Hoare triple {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} call #t~ret1 := my_init(); {3723#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-11 01:05:27,647 INFO L280 TraceCheckUtils]: 8: Hoare triple {3723#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {3699#true} is VALID [2020-07-11 01:05:27,647 INFO L280 TraceCheckUtils]: 9: Hoare triple {3699#true} #res := 0; {3699#true} is VALID [2020-07-11 01:05:27,647 INFO L280 TraceCheckUtils]: 10: Hoare triple {3699#true} assume true; {3699#true} is VALID [2020-07-11 01:05:27,648 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {3699#true} {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} #179#return; {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-11 01:05:27,649 INFO L280 TraceCheckUtils]: 12: Hoare triple {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-11 01:05:27,649 INFO L280 TraceCheckUtils]: 13: Hoare triple {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} havoc #t~ret1; {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-11 01:05:27,650 INFO L280 TraceCheckUtils]: 14: Hoare triple {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-11 01:05:27,651 INFO L280 TraceCheckUtils]: 15: Hoare triple {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume !!(0 != #t~nondet2); {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-11 01:05:27,651 INFO L280 TraceCheckUtils]: 16: Hoare triple {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} havoc #t~nondet2; {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-11 01:05:27,652 INFO L280 TraceCheckUtils]: 17: Hoare triple {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-11 01:05:27,653 INFO L280 TraceCheckUtils]: 18: Hoare triple {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} #t~switch4 := 0 == #t~nondet3; {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-11 01:05:27,653 INFO L280 TraceCheckUtils]: 19: Hoare triple {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume #t~switch4; {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-11 01:05:27,654 INFO L280 TraceCheckUtils]: 20: Hoare triple {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume 0 == ~ldv_s_misc_fops_file_operations~0; {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-11 01:05:27,655 INFO L263 TraceCheckUtils]: 21: Hoare triple {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} call #t~ret5 := misc_open(); {3723#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-11 01:05:27,655 INFO L280 TraceCheckUtils]: 22: Hoare triple {3723#(= ~open_called~0 |old(~open_called~0)|)} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {3699#true} is VALID [2020-07-11 01:05:27,655 INFO L280 TraceCheckUtils]: 23: Hoare triple {3699#true} assume 0 != #t~nondet0; {3699#true} is VALID [2020-07-11 01:05:27,656 INFO L280 TraceCheckUtils]: 24: Hoare triple {3699#true} havoc #t~nondet0; {3699#true} is VALID [2020-07-11 01:05:27,656 INFO L280 TraceCheckUtils]: 25: Hoare triple {3699#true} #res := 1; {3699#true} is VALID [2020-07-11 01:05:27,656 INFO L280 TraceCheckUtils]: 26: Hoare triple {3699#true} assume true; {3699#true} is VALID [2020-07-11 01:05:27,657 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {3699#true} {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} #181#return; {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-11 01:05:27,658 INFO L280 TraceCheckUtils]: 28: Hoare triple {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-11 01:05:27,658 INFO L280 TraceCheckUtils]: 29: Hoare triple {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} havoc #t~ret5; {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} is VALID [2020-07-11 01:05:27,659 INFO L280 TraceCheckUtils]: 30: Hoare triple {3705#(<= main_~ldv_s_misc_fops_file_operations~0 0)} #t~post6 := ~ldv_s_misc_fops_file_operations~0; {3716#(<= |main_#t~post6| 0)} is VALID [2020-07-11 01:05:27,660 INFO L280 TraceCheckUtils]: 31: Hoare triple {3716#(<= |main_#t~post6| 0)} ~ldv_s_misc_fops_file_operations~0 := 1 + #t~post6; {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:27,661 INFO L280 TraceCheckUtils]: 32: Hoare triple {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} havoc #t~post6; {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:27,661 INFO L280 TraceCheckUtils]: 33: Hoare triple {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} havoc #t~nondet3; {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:27,662 INFO L280 TraceCheckUtils]: 34: Hoare triple {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} havoc #t~switch4; {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:27,662 INFO L280 TraceCheckUtils]: 35: Hoare triple {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:27,663 INFO L280 TraceCheckUtils]: 36: Hoare triple {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume !!(0 != #t~nondet2); {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:27,664 INFO L280 TraceCheckUtils]: 37: Hoare triple {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} havoc #t~nondet2; {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:27,664 INFO L280 TraceCheckUtils]: 38: Hoare triple {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:27,665 INFO L280 TraceCheckUtils]: 39: Hoare triple {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} #t~switch4 := 0 == #t~nondet3; {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:27,665 INFO L280 TraceCheckUtils]: 40: Hoare triple {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume !#t~switch4; {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:27,666 INFO L280 TraceCheckUtils]: 41: Hoare triple {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} #t~switch4 := #t~switch4 || 1 == #t~nondet3; {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:27,666 INFO L280 TraceCheckUtils]: 42: Hoare triple {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume !#t~switch4; {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:27,667 INFO L280 TraceCheckUtils]: 43: Hoare triple {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} #t~switch4 := #t~switch4 || 2 == #t~nondet3; {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:27,667 INFO L280 TraceCheckUtils]: 44: Hoare triple {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume !#t~switch4; {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:27,668 INFO L280 TraceCheckUtils]: 45: Hoare triple {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} #t~switch4 := #t~switch4 || 3 == #t~nondet3; {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:27,668 INFO L280 TraceCheckUtils]: 46: Hoare triple {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume #t~switch4; {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:27,668 INFO L280 TraceCheckUtils]: 47: Hoare triple {3717#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume 3 == ~ldv_s_misc_fops_file_operations~0; {3700#false} is VALID [2020-07-11 01:05:27,669 INFO L263 TraceCheckUtils]: 48: Hoare triple {3700#false} call #t~ret11 := misc_release(); {3700#false} is VALID [2020-07-11 01:05:27,669 INFO L280 TraceCheckUtils]: 49: Hoare triple {3700#false} assume 0 != ~open_called~0; {3700#false} is VALID [2020-07-11 01:05:27,669 INFO L263 TraceCheckUtils]: 50: Hoare triple {3700#false} call mutex_lock(); {3724#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} is VALID [2020-07-11 01:05:27,669 INFO L280 TraceCheckUtils]: 51: Hoare triple {3724#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {3699#true} is VALID [2020-07-11 01:05:27,669 INFO L280 TraceCheckUtils]: 52: Hoare triple {3699#true} ~ldv_mutex~0 := 2; {3699#true} is VALID [2020-07-11 01:05:27,670 INFO L280 TraceCheckUtils]: 53: Hoare triple {3699#true} assume true; {3699#true} is VALID [2020-07-11 01:05:27,670 INFO L275 TraceCheckUtils]: 54: Hoare quadruple {3699#true} {3700#false} #169#return; {3700#false} is VALID [2020-07-11 01:05:27,670 INFO L263 TraceCheckUtils]: 55: Hoare triple {3700#false} call mutex_unlock(); {3700#false} is VALID [2020-07-11 01:05:27,670 INFO L280 TraceCheckUtils]: 56: Hoare triple {3700#false} assume !(2 == ~ldv_mutex~0); {3700#false} is VALID [2020-07-11 01:05:27,671 INFO L263 TraceCheckUtils]: 57: Hoare triple {3700#false} call __blast_assert(); {3700#false} is VALID [2020-07-11 01:05:27,671 INFO L280 TraceCheckUtils]: 58: Hoare triple {3700#false} assume !false; {3700#false} is VALID [2020-07-11 01:05:27,676 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:05:27,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291672931] [2020-07-11 01:05:27,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-11 01:05:27,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-11 01:05:27,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11642161] [2020-07-11 01:05:27,677 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2020-07-11 01:05:27,678 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:05:27,678 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-11 01:05:27,728 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 59 edges. 59 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:27,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-11 01:05:27,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:05:27,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-11 01:05:27,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-11 01:05:27,729 INFO L87 Difference]: Start difference. First operand 200 states and 243 transitions. Second operand 8 states. [2020-07-11 01:05:29,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:29,382 INFO L93 Difference]: Finished difference Result 573 states and 736 transitions. [2020-07-11 01:05:29,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-11 01:05:29,382 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2020-07-11 01:05:29,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:05:29,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-11 01:05:29,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 389 transitions. [2020-07-11 01:05:29,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-11 01:05:29,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 389 transitions. [2020-07-11 01:05:29,398 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 389 transitions. [2020-07-11 01:05:29,809 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 389 edges. 389 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:29,823 INFO L225 Difference]: With dead ends: 573 [2020-07-11 01:05:29,823 INFO L226 Difference]: Without dead ends: 387 [2020-07-11 01:05:29,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-07-11 01:05:29,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2020-07-11 01:05:30,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 240. [2020-07-11 01:05:30,163 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:05:30,163 INFO L82 GeneralOperation]: Start isEquivalent. First operand 387 states. Second operand 240 states. [2020-07-11 01:05:30,164 INFO L74 IsIncluded]: Start isIncluded. First operand 387 states. Second operand 240 states. [2020-07-11 01:05:30,164 INFO L87 Difference]: Start difference. First operand 387 states. Second operand 240 states. [2020-07-11 01:05:30,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:30,183 INFO L93 Difference]: Finished difference Result 387 states and 492 transitions. [2020-07-11 01:05:30,183 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 492 transitions. [2020-07-11 01:05:30,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:30,185 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:05:30,185 INFO L74 IsIncluded]: Start isIncluded. First operand 240 states. Second operand 387 states. [2020-07-11 01:05:30,185 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 387 states. [2020-07-11 01:05:30,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:30,204 INFO L93 Difference]: Finished difference Result 387 states and 492 transitions. [2020-07-11 01:05:30,205 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 492 transitions. [2020-07-11 01:05:30,206 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:30,206 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:05:30,206 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:05:30,207 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:05:30,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-07-11 01:05:30,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 298 transitions. [2020-07-11 01:05:30,216 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 298 transitions. Word has length 59 [2020-07-11 01:05:30,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:05:30,217 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 298 transitions. [2020-07-11 01:05:30,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-11 01:05:30,217 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 240 states and 298 transitions. [2020-07-11 01:05:30,593 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 298 edges. 298 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:30,594 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 298 transitions. [2020-07-11 01:05:30,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-11 01:05:30,596 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:05:30,596 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] [2020-07-11 01:05:30,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-11 01:05:30,597 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:05:30,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:05:30,597 INFO L82 PathProgramCache]: Analyzing trace with hash -586168855, now seen corresponding path program 1 times [2020-07-11 01:05:30,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:05:30,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856168718] [2020-07-11 01:05:30,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:05:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:30,701 INFO L280 TraceCheckUtils]: 0: Hoare triple {6167#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {6141#true} is VALID [2020-07-11 01:05:30,701 INFO L280 TraceCheckUtils]: 1: Hoare triple {6141#true} ~open_called~0 := 0; {6141#true} is VALID [2020-07-11 01:05:30,702 INFO L280 TraceCheckUtils]: 2: Hoare triple {6141#true} assume true; {6141#true} is VALID [2020-07-11 01:05:30,702 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6141#true} {6141#true} #195#return; {6141#true} is VALID [2020-07-11 01:05:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:30,718 INFO L280 TraceCheckUtils]: 0: Hoare triple {6168#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {6141#true} is VALID [2020-07-11 01:05:30,719 INFO L280 TraceCheckUtils]: 1: Hoare triple {6141#true} #res := 0; {6141#true} is VALID [2020-07-11 01:05:30,719 INFO L280 TraceCheckUtils]: 2: Hoare triple {6141#true} assume true; {6141#true} is VALID [2020-07-11 01:05:30,719 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6141#true} {6141#true} #179#return; {6141#true} is VALID [2020-07-11 01:05:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:30,729 INFO L280 TraceCheckUtils]: 0: Hoare triple {6168#(= ~open_called~0 |old(~open_called~0)|)} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {6141#true} is VALID [2020-07-11 01:05:30,730 INFO L280 TraceCheckUtils]: 1: Hoare triple {6141#true} assume 0 != #t~nondet0; {6141#true} is VALID [2020-07-11 01:05:30,730 INFO L280 TraceCheckUtils]: 2: Hoare triple {6141#true} havoc #t~nondet0; {6141#true} is VALID [2020-07-11 01:05:30,730 INFO L280 TraceCheckUtils]: 3: Hoare triple {6141#true} #res := 1; {6141#true} is VALID [2020-07-11 01:05:30,730 INFO L280 TraceCheckUtils]: 4: Hoare triple {6141#true} assume true; {6141#true} is VALID [2020-07-11 01:05:30,731 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {6141#true} {6141#true} #181#return; {6141#true} is VALID [2020-07-11 01:05:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:30,745 INFO L280 TraceCheckUtils]: 0: Hoare triple {6141#true} #res := 0; {6141#true} is VALID [2020-07-11 01:05:30,746 INFO L280 TraceCheckUtils]: 1: Hoare triple {6141#true} assume true; {6141#true} is VALID [2020-07-11 01:05:30,752 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6141#true} {6157#(<= main_~ldv_s_misc_fops_file_operations~0 1)} #183#return; {6157#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:30,786 INFO L280 TraceCheckUtils]: 0: Hoare triple {6169#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {6141#true} is VALID [2020-07-11 01:05:30,786 INFO L280 TraceCheckUtils]: 1: Hoare triple {6141#true} ~ldv_mutex~0 := 2; {6141#true} is VALID [2020-07-11 01:05:30,787 INFO L280 TraceCheckUtils]: 2: Hoare triple {6141#true} assume true; {6141#true} is VALID [2020-07-11 01:05:30,787 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6141#true} {6142#false} #169#return; {6142#false} is VALID [2020-07-11 01:05:30,789 INFO L263 TraceCheckUtils]: 0: Hoare triple {6141#true} call ULTIMATE.init(); {6167#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} is VALID [2020-07-11 01:05:30,789 INFO L280 TraceCheckUtils]: 1: Hoare triple {6167#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {6141#true} is VALID [2020-07-11 01:05:30,789 INFO L280 TraceCheckUtils]: 2: Hoare triple {6141#true} ~open_called~0 := 0; {6141#true} is VALID [2020-07-11 01:05:30,789 INFO L280 TraceCheckUtils]: 3: Hoare triple {6141#true} assume true; {6141#true} is VALID [2020-07-11 01:05:30,790 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6141#true} {6141#true} #195#return; {6141#true} is VALID [2020-07-11 01:05:30,790 INFO L263 TraceCheckUtils]: 5: Hoare triple {6141#true} call #t~ret12 := main(); {6141#true} is VALID [2020-07-11 01:05:30,790 INFO L280 TraceCheckUtils]: 6: Hoare triple {6141#true} ~ldv_s_misc_fops_file_operations~0 := 0; {6141#true} is VALID [2020-07-11 01:05:30,790 INFO L263 TraceCheckUtils]: 7: Hoare triple {6141#true} call #t~ret1 := my_init(); {6168#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-11 01:05:30,791 INFO L280 TraceCheckUtils]: 8: Hoare triple {6168#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {6141#true} is VALID [2020-07-11 01:05:30,791 INFO L280 TraceCheckUtils]: 9: Hoare triple {6141#true} #res := 0; {6141#true} is VALID [2020-07-11 01:05:30,791 INFO L280 TraceCheckUtils]: 10: Hoare triple {6141#true} assume true; {6141#true} is VALID [2020-07-11 01:05:30,791 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {6141#true} {6141#true} #179#return; {6141#true} is VALID [2020-07-11 01:05:30,791 INFO L280 TraceCheckUtils]: 12: Hoare triple {6141#true} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {6141#true} is VALID [2020-07-11 01:05:30,791 INFO L280 TraceCheckUtils]: 13: Hoare triple {6141#true} havoc #t~ret1; {6141#true} is VALID [2020-07-11 01:05:30,792 INFO L280 TraceCheckUtils]: 14: Hoare triple {6141#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {6141#true} is VALID [2020-07-11 01:05:30,792 INFO L280 TraceCheckUtils]: 15: Hoare triple {6141#true} assume !!(0 != #t~nondet2); {6141#true} is VALID [2020-07-11 01:05:30,792 INFO L280 TraceCheckUtils]: 16: Hoare triple {6141#true} havoc #t~nondet2; {6141#true} is VALID [2020-07-11 01:05:30,792 INFO L280 TraceCheckUtils]: 17: Hoare triple {6141#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {6141#true} is VALID [2020-07-11 01:05:30,792 INFO L280 TraceCheckUtils]: 18: Hoare triple {6141#true} #t~switch4 := 0 == #t~nondet3; {6141#true} is VALID [2020-07-11 01:05:30,792 INFO L280 TraceCheckUtils]: 19: Hoare triple {6141#true} assume #t~switch4; {6141#true} is VALID [2020-07-11 01:05:30,793 INFO L280 TraceCheckUtils]: 20: Hoare triple {6141#true} assume 0 == ~ldv_s_misc_fops_file_operations~0; {6141#true} is VALID [2020-07-11 01:05:30,793 INFO L263 TraceCheckUtils]: 21: Hoare triple {6141#true} call #t~ret5 := misc_open(); {6168#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-11 01:05:30,793 INFO L280 TraceCheckUtils]: 22: Hoare triple {6168#(= ~open_called~0 |old(~open_called~0)|)} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {6141#true} is VALID [2020-07-11 01:05:30,794 INFO L280 TraceCheckUtils]: 23: Hoare triple {6141#true} assume 0 != #t~nondet0; {6141#true} is VALID [2020-07-11 01:05:30,794 INFO L280 TraceCheckUtils]: 24: Hoare triple {6141#true} havoc #t~nondet0; {6141#true} is VALID [2020-07-11 01:05:30,794 INFO L280 TraceCheckUtils]: 25: Hoare triple {6141#true} #res := 1; {6141#true} is VALID [2020-07-11 01:05:30,795 INFO L280 TraceCheckUtils]: 26: Hoare triple {6141#true} assume true; {6141#true} is VALID [2020-07-11 01:05:30,795 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {6141#true} {6141#true} #181#return; {6141#true} is VALID [2020-07-11 01:05:30,795 INFO L280 TraceCheckUtils]: 28: Hoare triple {6141#true} assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; {6141#true} is VALID [2020-07-11 01:05:30,795 INFO L280 TraceCheckUtils]: 29: Hoare triple {6141#true} havoc #t~ret5; {6141#true} is VALID [2020-07-11 01:05:30,795 INFO L280 TraceCheckUtils]: 30: Hoare triple {6141#true} #t~post6 := ~ldv_s_misc_fops_file_operations~0; {6141#true} is VALID [2020-07-11 01:05:30,796 INFO L280 TraceCheckUtils]: 31: Hoare triple {6141#true} ~ldv_s_misc_fops_file_operations~0 := 1 + #t~post6; {6141#true} is VALID [2020-07-11 01:05:30,796 INFO L280 TraceCheckUtils]: 32: Hoare triple {6141#true} havoc #t~post6; {6141#true} is VALID [2020-07-11 01:05:30,796 INFO L280 TraceCheckUtils]: 33: Hoare triple {6141#true} havoc #t~nondet3; {6141#true} is VALID [2020-07-11 01:05:30,796 INFO L280 TraceCheckUtils]: 34: Hoare triple {6141#true} havoc #t~switch4; {6141#true} is VALID [2020-07-11 01:05:30,797 INFO L280 TraceCheckUtils]: 35: Hoare triple {6141#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {6141#true} is VALID [2020-07-11 01:05:30,797 INFO L280 TraceCheckUtils]: 36: Hoare triple {6141#true} assume !!(0 != #t~nondet2); {6141#true} is VALID [2020-07-11 01:05:30,797 INFO L280 TraceCheckUtils]: 37: Hoare triple {6141#true} havoc #t~nondet2; {6141#true} is VALID [2020-07-11 01:05:30,797 INFO L280 TraceCheckUtils]: 38: Hoare triple {6141#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {6141#true} is VALID [2020-07-11 01:05:30,797 INFO L280 TraceCheckUtils]: 39: Hoare triple {6141#true} #t~switch4 := 0 == #t~nondet3; {6141#true} is VALID [2020-07-11 01:05:30,798 INFO L280 TraceCheckUtils]: 40: Hoare triple {6141#true} assume !#t~switch4; {6141#true} is VALID [2020-07-11 01:05:30,798 INFO L280 TraceCheckUtils]: 41: Hoare triple {6141#true} #t~switch4 := #t~switch4 || 1 == #t~nondet3; {6141#true} is VALID [2020-07-11 01:05:30,798 INFO L280 TraceCheckUtils]: 42: Hoare triple {6141#true} assume #t~switch4; {6141#true} is VALID [2020-07-11 01:05:30,799 INFO L280 TraceCheckUtils]: 43: Hoare triple {6141#true} assume 1 == ~ldv_s_misc_fops_file_operations~0; {6157#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:30,799 INFO L263 TraceCheckUtils]: 44: Hoare triple {6157#(<= main_~ldv_s_misc_fops_file_operations~0 1)} call #t~ret7 := misc_read(); {6141#true} is VALID [2020-07-11 01:05:30,799 INFO L280 TraceCheckUtils]: 45: Hoare triple {6141#true} #res := 0; {6141#true} is VALID [2020-07-11 01:05:30,799 INFO L280 TraceCheckUtils]: 46: Hoare triple {6141#true} assume true; {6141#true} is VALID [2020-07-11 01:05:30,800 INFO L275 TraceCheckUtils]: 47: Hoare quadruple {6141#true} {6157#(<= main_~ldv_s_misc_fops_file_operations~0 1)} #183#return; {6157#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:30,801 INFO L280 TraceCheckUtils]: 48: Hoare triple {6157#(<= main_~ldv_s_misc_fops_file_operations~0 1)} assume -2147483648 <= #t~ret7 && #t~ret7 <= 2147483647; {6157#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:30,801 INFO L280 TraceCheckUtils]: 49: Hoare triple {6157#(<= main_~ldv_s_misc_fops_file_operations~0 1)} havoc #t~ret7; {6157#(<= main_~ldv_s_misc_fops_file_operations~0 1)} is VALID [2020-07-11 01:05:30,804 INFO L280 TraceCheckUtils]: 50: Hoare triple {6157#(<= main_~ldv_s_misc_fops_file_operations~0 1)} #t~post8 := ~ldv_s_misc_fops_file_operations~0; {6161#(<= |main_#t~post8| 1)} is VALID [2020-07-11 01:05:30,806 INFO L280 TraceCheckUtils]: 51: Hoare triple {6161#(<= |main_#t~post8| 1)} ~ldv_s_misc_fops_file_operations~0 := 1 + #t~post8; {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-11 01:05:30,807 INFO L280 TraceCheckUtils]: 52: Hoare triple {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} havoc #t~post8; {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-11 01:05:30,808 INFO L280 TraceCheckUtils]: 53: Hoare triple {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} havoc #t~nondet3; {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-11 01:05:30,808 INFO L280 TraceCheckUtils]: 54: Hoare triple {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} havoc #t~switch4; {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-11 01:05:30,809 INFO L280 TraceCheckUtils]: 55: Hoare triple {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-11 01:05:30,809 INFO L280 TraceCheckUtils]: 56: Hoare triple {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} assume !!(0 != #t~nondet2); {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-11 01:05:30,810 INFO L280 TraceCheckUtils]: 57: Hoare triple {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} havoc #t~nondet2; {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-11 01:05:30,810 INFO L280 TraceCheckUtils]: 58: Hoare triple {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-11 01:05:30,811 INFO L280 TraceCheckUtils]: 59: Hoare triple {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} #t~switch4 := 0 == #t~nondet3; {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-11 01:05:30,811 INFO L280 TraceCheckUtils]: 60: Hoare triple {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} assume !#t~switch4; {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-11 01:05:30,811 INFO L280 TraceCheckUtils]: 61: Hoare triple {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} #t~switch4 := #t~switch4 || 1 == #t~nondet3; {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-11 01:05:30,812 INFO L280 TraceCheckUtils]: 62: Hoare triple {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} assume !#t~switch4; {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-11 01:05:30,812 INFO L280 TraceCheckUtils]: 63: Hoare triple {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} #t~switch4 := #t~switch4 || 2 == #t~nondet3; {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-11 01:05:30,813 INFO L280 TraceCheckUtils]: 64: Hoare triple {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} assume !#t~switch4; {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-11 01:05:30,813 INFO L280 TraceCheckUtils]: 65: Hoare triple {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} #t~switch4 := #t~switch4 || 3 == #t~nondet3; {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-11 01:05:30,813 INFO L280 TraceCheckUtils]: 66: Hoare triple {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} assume #t~switch4; {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} is VALID [2020-07-11 01:05:30,814 INFO L280 TraceCheckUtils]: 67: Hoare triple {6162#(<= main_~ldv_s_misc_fops_file_operations~0 2)} assume 3 == ~ldv_s_misc_fops_file_operations~0; {6142#false} is VALID [2020-07-11 01:05:30,814 INFO L263 TraceCheckUtils]: 68: Hoare triple {6142#false} call #t~ret11 := misc_release(); {6142#false} is VALID [2020-07-11 01:05:30,814 INFO L280 TraceCheckUtils]: 69: Hoare triple {6142#false} assume 0 != ~open_called~0; {6142#false} is VALID [2020-07-11 01:05:30,814 INFO L263 TraceCheckUtils]: 70: Hoare triple {6142#false} call mutex_lock(); {6169#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} is VALID [2020-07-11 01:05:30,815 INFO L280 TraceCheckUtils]: 71: Hoare triple {6169#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {6141#true} is VALID [2020-07-11 01:05:30,815 INFO L280 TraceCheckUtils]: 72: Hoare triple {6141#true} ~ldv_mutex~0 := 2; {6141#true} is VALID [2020-07-11 01:05:30,815 INFO L280 TraceCheckUtils]: 73: Hoare triple {6141#true} assume true; {6141#true} is VALID [2020-07-11 01:05:30,815 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {6141#true} {6142#false} #169#return; {6142#false} is VALID [2020-07-11 01:05:30,815 INFO L263 TraceCheckUtils]: 75: Hoare triple {6142#false} call mutex_unlock(); {6142#false} is VALID [2020-07-11 01:05:30,816 INFO L280 TraceCheckUtils]: 76: Hoare triple {6142#false} assume !(2 == ~ldv_mutex~0); {6142#false} is VALID [2020-07-11 01:05:30,816 INFO L263 TraceCheckUtils]: 77: Hoare triple {6142#false} call __blast_assert(); {6142#false} is VALID [2020-07-11 01:05:30,816 INFO L280 TraceCheckUtils]: 78: Hoare triple {6142#false} assume !false; {6142#false} is VALID [2020-07-11 01:05:30,821 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-11 01:05:30,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856168718] [2020-07-11 01:05:30,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:05:30,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-11 01:05:30,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079909000] [2020-07-11 01:05:30,823 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-07-11 01:05:30,826 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:05:30,826 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-11 01:05:30,898 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:30,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-11 01:05:30,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:05:30,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-11 01:05:30,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-11 01:05:30,899 INFO L87 Difference]: Start difference. First operand 240 states and 298 transitions. Second operand 8 states. [2020-07-11 01:05:32,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:32,783 INFO L93 Difference]: Finished difference Result 733 states and 952 transitions. [2020-07-11 01:05:32,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-11 01:05:32,783 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-07-11 01:05:32,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:05:32,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-11 01:05:32,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 389 transitions. [2020-07-11 01:05:32,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-11 01:05:32,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 389 transitions. [2020-07-11 01:05:32,796 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 389 transitions. [2020-07-11 01:05:33,197 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 389 edges. 389 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:33,224 INFO L225 Difference]: With dead ends: 733 [2020-07-11 01:05:33,224 INFO L226 Difference]: Without dead ends: 507 [2020-07-11 01:05:33,226 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 [2020-07-11 01:05:33,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-07-11 01:05:33,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 320. [2020-07-11 01:05:33,690 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:05:33,690 INFO L82 GeneralOperation]: Start isEquivalent. First operand 507 states. Second operand 320 states. [2020-07-11 01:05:33,690 INFO L74 IsIncluded]: Start isIncluded. First operand 507 states. Second operand 320 states. [2020-07-11 01:05:33,691 INFO L87 Difference]: Start difference. First operand 507 states. Second operand 320 states. [2020-07-11 01:05:33,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:33,711 INFO L93 Difference]: Finished difference Result 507 states and 659 transitions. [2020-07-11 01:05:33,712 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 659 transitions. [2020-07-11 01:05:33,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:33,713 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:05:33,714 INFO L74 IsIncluded]: Start isIncluded. First operand 320 states. Second operand 507 states. [2020-07-11 01:05:33,714 INFO L87 Difference]: Start difference. First operand 320 states. Second operand 507 states. [2020-07-11 01:05:33,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:33,734 INFO L93 Difference]: Finished difference Result 507 states and 659 transitions. [2020-07-11 01:05:33,735 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 659 transitions. [2020-07-11 01:05:33,736 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:33,737 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:05:33,737 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:05:33,737 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:05:33,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-07-11 01:05:33,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 410 transitions. [2020-07-11 01:05:33,748 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 410 transitions. Word has length 79 [2020-07-11 01:05:33,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:05:33,748 INFO L479 AbstractCegarLoop]: Abstraction has 320 states and 410 transitions. [2020-07-11 01:05:33,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-11 01:05:33,749 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 320 states and 410 transitions. [2020-07-11 01:05:34,303 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 410 edges. 410 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:34,303 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 410 transitions. [2020-07-11 01:05:34,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-07-11 01:05:34,305 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:05:34,306 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] [2020-07-11 01:05:34,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-11 01:05:34,307 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:05:34,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:05:34,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1731656998, now seen corresponding path program 1 times [2020-07-11 01:05:34,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:05:34,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628908127] [2020-07-11 01:05:34,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:05:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:34,410 INFO L280 TraceCheckUtils]: 0: Hoare triple {9335#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {9308#true} is VALID [2020-07-11 01:05:34,410 INFO L280 TraceCheckUtils]: 1: Hoare triple {9308#true} ~open_called~0 := 0; {9308#true} is VALID [2020-07-11 01:05:34,410 INFO L280 TraceCheckUtils]: 2: Hoare triple {9308#true} assume true; {9308#true} is VALID [2020-07-11 01:05:34,411 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9308#true} {9308#true} #195#return; {9308#true} is VALID [2020-07-11 01:05:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:34,424 INFO L280 TraceCheckUtils]: 0: Hoare triple {9336#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {9308#true} is VALID [2020-07-11 01:05:34,424 INFO L280 TraceCheckUtils]: 1: Hoare triple {9308#true} #res := 0; {9308#true} is VALID [2020-07-11 01:05:34,424 INFO L280 TraceCheckUtils]: 2: Hoare triple {9308#true} assume true; {9308#true} is VALID [2020-07-11 01:05:34,425 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9308#true} {9308#true} #179#return; {9308#true} is VALID [2020-07-11 01:05:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:34,429 INFO L280 TraceCheckUtils]: 0: Hoare triple {9336#(= ~open_called~0 |old(~open_called~0)|)} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {9308#true} is VALID [2020-07-11 01:05:34,429 INFO L280 TraceCheckUtils]: 1: Hoare triple {9308#true} assume 0 != #t~nondet0; {9308#true} is VALID [2020-07-11 01:05:34,430 INFO L280 TraceCheckUtils]: 2: Hoare triple {9308#true} havoc #t~nondet0; {9308#true} is VALID [2020-07-11 01:05:34,430 INFO L280 TraceCheckUtils]: 3: Hoare triple {9308#true} #res := 1; {9308#true} is VALID [2020-07-11 01:05:34,430 INFO L280 TraceCheckUtils]: 4: Hoare triple {9308#true} assume true; {9308#true} is VALID [2020-07-11 01:05:34,430 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {9308#true} {9308#true} #181#return; {9308#true} is VALID [2020-07-11 01:05:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:34,434 INFO L280 TraceCheckUtils]: 0: Hoare triple {9308#true} #res := 0; {9308#true} is VALID [2020-07-11 01:05:34,434 INFO L280 TraceCheckUtils]: 1: Hoare triple {9308#true} assume true; {9308#true} is VALID [2020-07-11 01:05:34,434 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {9308#true} {9308#true} #183#return; {9308#true} is VALID [2020-07-11 01:05:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:34,438 INFO L280 TraceCheckUtils]: 0: Hoare triple {9308#true} #res := 0; {9308#true} is VALID [2020-07-11 01:05:34,438 INFO L280 TraceCheckUtils]: 1: Hoare triple {9308#true} assume true; {9308#true} is VALID [2020-07-11 01:05:34,439 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {9308#true} {9308#true} #185#return; {9308#true} is VALID [2020-07-11 01:05:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:34,454 INFO L280 TraceCheckUtils]: 0: Hoare triple {9337#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {9308#true} is VALID [2020-07-11 01:05:34,454 INFO L280 TraceCheckUtils]: 1: Hoare triple {9308#true} ~ldv_mutex~0 := 2; {9334#(= 2 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:34,455 INFO L280 TraceCheckUtils]: 2: Hoare triple {9334#(= 2 ~ldv_mutex~0)} assume true; {9334#(= 2 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:34,456 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9334#(= 2 ~ldv_mutex~0)} {9308#true} #169#return; {9334#(= 2 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:34,457 INFO L263 TraceCheckUtils]: 0: Hoare triple {9308#true} call ULTIMATE.init(); {9335#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} is VALID [2020-07-11 01:05:34,457 INFO L280 TraceCheckUtils]: 1: Hoare triple {9335#(and (= ~open_called~0 |old(~open_called~0)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|))} ~ldv_mutex~0 := 1; {9308#true} is VALID [2020-07-11 01:05:34,457 INFO L280 TraceCheckUtils]: 2: Hoare triple {9308#true} ~open_called~0 := 0; {9308#true} is VALID [2020-07-11 01:05:34,457 INFO L280 TraceCheckUtils]: 3: Hoare triple {9308#true} assume true; {9308#true} is VALID [2020-07-11 01:05:34,458 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {9308#true} {9308#true} #195#return; {9308#true} is VALID [2020-07-11 01:05:34,458 INFO L263 TraceCheckUtils]: 5: Hoare triple {9308#true} call #t~ret12 := main(); {9308#true} is VALID [2020-07-11 01:05:34,458 INFO L280 TraceCheckUtils]: 6: Hoare triple {9308#true} ~ldv_s_misc_fops_file_operations~0 := 0; {9308#true} is VALID [2020-07-11 01:05:34,459 INFO L263 TraceCheckUtils]: 7: Hoare triple {9308#true} call #t~ret1 := my_init(); {9336#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-11 01:05:34,459 INFO L280 TraceCheckUtils]: 8: Hoare triple {9336#(= ~open_called~0 |old(~open_called~0)|)} ~open_called~0 := 0; {9308#true} is VALID [2020-07-11 01:05:34,459 INFO L280 TraceCheckUtils]: 9: Hoare triple {9308#true} #res := 0; {9308#true} is VALID [2020-07-11 01:05:34,460 INFO L280 TraceCheckUtils]: 10: Hoare triple {9308#true} assume true; {9308#true} is VALID [2020-07-11 01:05:34,460 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {9308#true} {9308#true} #179#return; {9308#true} is VALID [2020-07-11 01:05:34,460 INFO L280 TraceCheckUtils]: 12: Hoare triple {9308#true} assume -2147483648 <= #t~ret1 && #t~ret1 <= 2147483647; {9308#true} is VALID [2020-07-11 01:05:34,460 INFO L280 TraceCheckUtils]: 13: Hoare triple {9308#true} havoc #t~ret1; {9308#true} is VALID [2020-07-11 01:05:34,460 INFO L280 TraceCheckUtils]: 14: Hoare triple {9308#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {9308#true} is VALID [2020-07-11 01:05:34,461 INFO L280 TraceCheckUtils]: 15: Hoare triple {9308#true} assume !!(0 != #t~nondet2); {9308#true} is VALID [2020-07-11 01:05:34,461 INFO L280 TraceCheckUtils]: 16: Hoare triple {9308#true} havoc #t~nondet2; {9308#true} is VALID [2020-07-11 01:05:34,461 INFO L280 TraceCheckUtils]: 17: Hoare triple {9308#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {9308#true} is VALID [2020-07-11 01:05:34,461 INFO L280 TraceCheckUtils]: 18: Hoare triple {9308#true} #t~switch4 := 0 == #t~nondet3; {9308#true} is VALID [2020-07-11 01:05:34,462 INFO L280 TraceCheckUtils]: 19: Hoare triple {9308#true} assume #t~switch4; {9308#true} is VALID [2020-07-11 01:05:34,462 INFO L280 TraceCheckUtils]: 20: Hoare triple {9308#true} assume 0 == ~ldv_s_misc_fops_file_operations~0; {9308#true} is VALID [2020-07-11 01:05:34,463 INFO L263 TraceCheckUtils]: 21: Hoare triple {9308#true} call #t~ret5 := misc_open(); {9336#(= ~open_called~0 |old(~open_called~0)|)} is VALID [2020-07-11 01:05:34,463 INFO L280 TraceCheckUtils]: 22: Hoare triple {9336#(= ~open_called~0 |old(~open_called~0)|)} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {9308#true} is VALID [2020-07-11 01:05:34,463 INFO L280 TraceCheckUtils]: 23: Hoare triple {9308#true} assume 0 != #t~nondet0; {9308#true} is VALID [2020-07-11 01:05:34,463 INFO L280 TraceCheckUtils]: 24: Hoare triple {9308#true} havoc #t~nondet0; {9308#true} is VALID [2020-07-11 01:05:34,464 INFO L280 TraceCheckUtils]: 25: Hoare triple {9308#true} #res := 1; {9308#true} is VALID [2020-07-11 01:05:34,464 INFO L280 TraceCheckUtils]: 26: Hoare triple {9308#true} assume true; {9308#true} is VALID [2020-07-11 01:05:34,464 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {9308#true} {9308#true} #181#return; {9308#true} is VALID [2020-07-11 01:05:34,464 INFO L280 TraceCheckUtils]: 28: Hoare triple {9308#true} assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; {9308#true} is VALID [2020-07-11 01:05:34,464 INFO L280 TraceCheckUtils]: 29: Hoare triple {9308#true} havoc #t~ret5; {9308#true} is VALID [2020-07-11 01:05:34,465 INFO L280 TraceCheckUtils]: 30: Hoare triple {9308#true} #t~post6 := ~ldv_s_misc_fops_file_operations~0; {9308#true} is VALID [2020-07-11 01:05:34,465 INFO L280 TraceCheckUtils]: 31: Hoare triple {9308#true} ~ldv_s_misc_fops_file_operations~0 := 1 + #t~post6; {9308#true} is VALID [2020-07-11 01:05:34,465 INFO L280 TraceCheckUtils]: 32: Hoare triple {9308#true} havoc #t~post6; {9308#true} is VALID [2020-07-11 01:05:34,465 INFO L280 TraceCheckUtils]: 33: Hoare triple {9308#true} havoc #t~nondet3; {9308#true} is VALID [2020-07-11 01:05:34,466 INFO L280 TraceCheckUtils]: 34: Hoare triple {9308#true} havoc #t~switch4; {9308#true} is VALID [2020-07-11 01:05:34,466 INFO L280 TraceCheckUtils]: 35: Hoare triple {9308#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {9308#true} is VALID [2020-07-11 01:05:34,466 INFO L280 TraceCheckUtils]: 36: Hoare triple {9308#true} assume !!(0 != #t~nondet2); {9308#true} is VALID [2020-07-11 01:05:34,466 INFO L280 TraceCheckUtils]: 37: Hoare triple {9308#true} havoc #t~nondet2; {9308#true} is VALID [2020-07-11 01:05:34,466 INFO L280 TraceCheckUtils]: 38: Hoare triple {9308#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {9308#true} is VALID [2020-07-11 01:05:34,467 INFO L280 TraceCheckUtils]: 39: Hoare triple {9308#true} #t~switch4 := 0 == #t~nondet3; {9308#true} is VALID [2020-07-11 01:05:34,467 INFO L280 TraceCheckUtils]: 40: Hoare triple {9308#true} assume !#t~switch4; {9308#true} is VALID [2020-07-11 01:05:34,467 INFO L280 TraceCheckUtils]: 41: Hoare triple {9308#true} #t~switch4 := #t~switch4 || 1 == #t~nondet3; {9308#true} is VALID [2020-07-11 01:05:34,467 INFO L280 TraceCheckUtils]: 42: Hoare triple {9308#true} assume #t~switch4; {9308#true} is VALID [2020-07-11 01:05:34,468 INFO L280 TraceCheckUtils]: 43: Hoare triple {9308#true} assume 1 == ~ldv_s_misc_fops_file_operations~0; {9308#true} is VALID [2020-07-11 01:05:34,468 INFO L263 TraceCheckUtils]: 44: Hoare triple {9308#true} call #t~ret7 := misc_read(); {9308#true} is VALID [2020-07-11 01:05:34,468 INFO L280 TraceCheckUtils]: 45: Hoare triple {9308#true} #res := 0; {9308#true} is VALID [2020-07-11 01:05:34,468 INFO L280 TraceCheckUtils]: 46: Hoare triple {9308#true} assume true; {9308#true} is VALID [2020-07-11 01:05:34,468 INFO L275 TraceCheckUtils]: 47: Hoare quadruple {9308#true} {9308#true} #183#return; {9308#true} is VALID [2020-07-11 01:05:34,469 INFO L280 TraceCheckUtils]: 48: Hoare triple {9308#true} assume -2147483648 <= #t~ret7 && #t~ret7 <= 2147483647; {9308#true} is VALID [2020-07-11 01:05:34,469 INFO L280 TraceCheckUtils]: 49: Hoare triple {9308#true} havoc #t~ret7; {9308#true} is VALID [2020-07-11 01:05:34,469 INFO L280 TraceCheckUtils]: 50: Hoare triple {9308#true} #t~post8 := ~ldv_s_misc_fops_file_operations~0; {9308#true} is VALID [2020-07-11 01:05:34,469 INFO L280 TraceCheckUtils]: 51: Hoare triple {9308#true} ~ldv_s_misc_fops_file_operations~0 := 1 + #t~post8; {9308#true} is VALID [2020-07-11 01:05:34,469 INFO L280 TraceCheckUtils]: 52: Hoare triple {9308#true} havoc #t~post8; {9308#true} is VALID [2020-07-11 01:05:34,470 INFO L280 TraceCheckUtils]: 53: Hoare triple {9308#true} havoc #t~nondet3; {9308#true} is VALID [2020-07-11 01:05:34,470 INFO L280 TraceCheckUtils]: 54: Hoare triple {9308#true} havoc #t~switch4; {9308#true} is VALID [2020-07-11 01:05:34,470 INFO L280 TraceCheckUtils]: 55: Hoare triple {9308#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {9308#true} is VALID [2020-07-11 01:05:34,470 INFO L280 TraceCheckUtils]: 56: Hoare triple {9308#true} assume !!(0 != #t~nondet2); {9308#true} is VALID [2020-07-11 01:05:34,471 INFO L280 TraceCheckUtils]: 57: Hoare triple {9308#true} havoc #t~nondet2; {9308#true} is VALID [2020-07-11 01:05:34,471 INFO L280 TraceCheckUtils]: 58: Hoare triple {9308#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {9308#true} is VALID [2020-07-11 01:05:34,471 INFO L280 TraceCheckUtils]: 59: Hoare triple {9308#true} #t~switch4 := 0 == #t~nondet3; {9308#true} is VALID [2020-07-11 01:05:34,471 INFO L280 TraceCheckUtils]: 60: Hoare triple {9308#true} assume !#t~switch4; {9308#true} is VALID [2020-07-11 01:05:34,471 INFO L280 TraceCheckUtils]: 61: Hoare triple {9308#true} #t~switch4 := #t~switch4 || 1 == #t~nondet3; {9308#true} is VALID [2020-07-11 01:05:34,472 INFO L280 TraceCheckUtils]: 62: Hoare triple {9308#true} assume !#t~switch4; {9308#true} is VALID [2020-07-11 01:05:34,472 INFO L280 TraceCheckUtils]: 63: Hoare triple {9308#true} #t~switch4 := #t~switch4 || 2 == #t~nondet3; {9308#true} is VALID [2020-07-11 01:05:34,472 INFO L280 TraceCheckUtils]: 64: Hoare triple {9308#true} assume #t~switch4; {9308#true} is VALID [2020-07-11 01:05:34,472 INFO L280 TraceCheckUtils]: 65: Hoare triple {9308#true} assume 2 == ~ldv_s_misc_fops_file_operations~0; {9308#true} is VALID [2020-07-11 01:05:34,473 INFO L263 TraceCheckUtils]: 66: Hoare triple {9308#true} call #t~ret9 := misc_llseek(); {9308#true} is VALID [2020-07-11 01:05:34,473 INFO L280 TraceCheckUtils]: 67: Hoare triple {9308#true} #res := 0; {9308#true} is VALID [2020-07-11 01:05:34,473 INFO L280 TraceCheckUtils]: 68: Hoare triple {9308#true} assume true; {9308#true} is VALID [2020-07-11 01:05:34,473 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {9308#true} {9308#true} #185#return; {9308#true} is VALID [2020-07-11 01:05:34,473 INFO L280 TraceCheckUtils]: 70: Hoare triple {9308#true} assume -2147483648 <= #t~ret9 && #t~ret9 <= 2147483647; {9308#true} is VALID [2020-07-11 01:05:34,474 INFO L280 TraceCheckUtils]: 71: Hoare triple {9308#true} havoc #t~ret9; {9308#true} is VALID [2020-07-11 01:05:34,474 INFO L280 TraceCheckUtils]: 72: Hoare triple {9308#true} #t~post10 := ~ldv_s_misc_fops_file_operations~0; {9308#true} is VALID [2020-07-11 01:05:34,474 INFO L280 TraceCheckUtils]: 73: Hoare triple {9308#true} ~ldv_s_misc_fops_file_operations~0 := 1 + #t~post10; {9308#true} is VALID [2020-07-11 01:05:34,474 INFO L280 TraceCheckUtils]: 74: Hoare triple {9308#true} havoc #t~post10; {9308#true} is VALID [2020-07-11 01:05:34,474 INFO L280 TraceCheckUtils]: 75: Hoare triple {9308#true} havoc #t~nondet3; {9308#true} is VALID [2020-07-11 01:05:34,475 INFO L280 TraceCheckUtils]: 76: Hoare triple {9308#true} havoc #t~switch4; {9308#true} is VALID [2020-07-11 01:05:34,475 INFO L280 TraceCheckUtils]: 77: Hoare triple {9308#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {9308#true} is VALID [2020-07-11 01:05:34,475 INFO L280 TraceCheckUtils]: 78: Hoare triple {9308#true} assume !!(0 != #t~nondet2); {9308#true} is VALID [2020-07-11 01:05:34,475 INFO L280 TraceCheckUtils]: 79: Hoare triple {9308#true} havoc #t~nondet2; {9308#true} is VALID [2020-07-11 01:05:34,476 INFO L280 TraceCheckUtils]: 80: Hoare triple {9308#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {9308#true} is VALID [2020-07-11 01:05:34,476 INFO L280 TraceCheckUtils]: 81: Hoare triple {9308#true} #t~switch4 := 0 == #t~nondet3; {9308#true} is VALID [2020-07-11 01:05:34,476 INFO L280 TraceCheckUtils]: 82: Hoare triple {9308#true} assume !#t~switch4; {9308#true} is VALID [2020-07-11 01:05:34,476 INFO L280 TraceCheckUtils]: 83: Hoare triple {9308#true} #t~switch4 := #t~switch4 || 1 == #t~nondet3; {9308#true} is VALID [2020-07-11 01:05:34,477 INFO L280 TraceCheckUtils]: 84: Hoare triple {9308#true} assume !#t~switch4; {9308#true} is VALID [2020-07-11 01:05:34,477 INFO L280 TraceCheckUtils]: 85: Hoare triple {9308#true} #t~switch4 := #t~switch4 || 2 == #t~nondet3; {9308#true} is VALID [2020-07-11 01:05:34,477 INFO L280 TraceCheckUtils]: 86: Hoare triple {9308#true} assume !#t~switch4; {9308#true} is VALID [2020-07-11 01:05:34,477 INFO L280 TraceCheckUtils]: 87: Hoare triple {9308#true} #t~switch4 := #t~switch4 || 3 == #t~nondet3; {9308#true} is VALID [2020-07-11 01:05:34,477 INFO L280 TraceCheckUtils]: 88: Hoare triple {9308#true} assume #t~switch4; {9308#true} is VALID [2020-07-11 01:05:34,477 INFO L280 TraceCheckUtils]: 89: Hoare triple {9308#true} assume 3 == ~ldv_s_misc_fops_file_operations~0; {9308#true} is VALID [2020-07-11 01:05:34,478 INFO L263 TraceCheckUtils]: 90: Hoare triple {9308#true} call #t~ret11 := misc_release(); {9308#true} is VALID [2020-07-11 01:05:34,478 INFO L280 TraceCheckUtils]: 91: Hoare triple {9308#true} assume 0 != ~open_called~0; {9308#true} is VALID [2020-07-11 01:05:34,479 INFO L263 TraceCheckUtils]: 92: Hoare triple {9308#true} call mutex_lock(); {9337#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} is VALID [2020-07-11 01:05:34,479 INFO L280 TraceCheckUtils]: 93: Hoare triple {9337#(= ~ldv_mutex~0 |old(~ldv_mutex~0)|)} assume 1 == ~ldv_mutex~0; {9308#true} is VALID [2020-07-11 01:05:34,480 INFO L280 TraceCheckUtils]: 94: Hoare triple {9308#true} ~ldv_mutex~0 := 2; {9334#(= 2 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:34,480 INFO L280 TraceCheckUtils]: 95: Hoare triple {9334#(= 2 ~ldv_mutex~0)} assume true; {9334#(= 2 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:34,481 INFO L275 TraceCheckUtils]: 96: Hoare quadruple {9334#(= 2 ~ldv_mutex~0)} {9308#true} #169#return; {9334#(= 2 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:34,481 INFO L263 TraceCheckUtils]: 97: Hoare triple {9334#(= 2 ~ldv_mutex~0)} call mutex_unlock(); {9334#(= 2 ~ldv_mutex~0)} is VALID [2020-07-11 01:05:34,482 INFO L280 TraceCheckUtils]: 98: Hoare triple {9334#(= 2 ~ldv_mutex~0)} assume !(2 == ~ldv_mutex~0); {9309#false} is VALID [2020-07-11 01:05:34,482 INFO L263 TraceCheckUtils]: 99: Hoare triple {9309#false} call __blast_assert(); {9309#false} is VALID [2020-07-11 01:05:34,483 INFO L280 TraceCheckUtils]: 100: Hoare triple {9309#false} assume !false; {9309#false} is VALID [2020-07-11 01:05:34,488 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-11 01:05:34,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628908127] [2020-07-11 01:05:34,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:05:34,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-11 01:05:34,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956933927] [2020-07-11 01:05:34,490 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2020-07-11 01:05:34,490 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:05:34,490 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-11 01:05:34,561 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 76 edges. 76 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:34,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-11 01:05:34,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:05:34,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-11 01:05:34,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-11 01:05:34,562 INFO L87 Difference]: Start difference. First operand 320 states and 410 transitions. Second operand 6 states. [2020-07-11 01:05:35,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:35,742 INFO L93 Difference]: Finished difference Result 599 states and 775 transitions. [2020-07-11 01:05:35,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-11 01:05:35,742 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2020-07-11 01:05:35,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:05:35,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-11 01:05:35,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 260 transitions. [2020-07-11 01:05:35,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-11 01:05:35,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 260 transitions. [2020-07-11 01:05:35,757 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 260 transitions. [2020-07-11 01:05:36,015 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 260 edges. 260 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:36,023 INFO L225 Difference]: With dead ends: 599 [2020-07-11 01:05:36,023 INFO L226 Difference]: Without dead ends: 293 [2020-07-11 01:05:36,024 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 [2020-07-11 01:05:36,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-07-11 01:05:36,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 172. [2020-07-11 01:05:36,345 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:05:36,345 INFO L82 GeneralOperation]: Start isEquivalent. First operand 293 states. Second operand 172 states. [2020-07-11 01:05:36,345 INFO L74 IsIncluded]: Start isIncluded. First operand 293 states. Second operand 172 states. [2020-07-11 01:05:36,345 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 172 states. [2020-07-11 01:05:36,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:36,355 INFO L93 Difference]: Finished difference Result 293 states and 374 transitions. [2020-07-11 01:05:36,355 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 374 transitions. [2020-07-11 01:05:36,356 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:36,357 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:05:36,357 INFO L74 IsIncluded]: Start isIncluded. First operand 172 states. Second operand 293 states. [2020-07-11 01:05:36,357 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 293 states. [2020-07-11 01:05:36,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:36,367 INFO L93 Difference]: Finished difference Result 293 states and 374 transitions. [2020-07-11 01:05:36,367 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 374 transitions. [2020-07-11 01:05:36,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:36,368 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:05:36,368 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:05:36,368 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:05:36,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-07-11 01:05:36,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 211 transitions. [2020-07-11 01:05:36,373 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 211 transitions. Word has length 101 [2020-07-11 01:05:36,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:05:36,373 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 211 transitions. [2020-07-11 01:05:36,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-11 01:05:36,374 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 172 states and 211 transitions. [2020-07-11 01:05:36,740 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 211 edges. 211 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:36,740 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 211 transitions. [2020-07-11 01:05:36,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-07-11 01:05:36,742 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:05:36,742 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] [2020-07-11 01:05:36,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-11 01:05:36,744 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:05:36,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:05:36,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1350272370, now seen corresponding path program 1 times [2020-07-11 01:05:36,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:05:36,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2080279690] [2020-07-11 01:05:36,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:05:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-11 01:05:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-11 01:05:36,880 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-11 01:05:36,881 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-11 01:05:36,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-11 01:05:36,948 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 [2020-07-11 01:05:36,951 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 [2020-07-11 01:05:36,952 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 [2020-07-11 01:05:36,960 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 [2020-07-11 01:05:36,961 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 [2020-07-11 01:05:36,961 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 [2020-07-11 01:05:36,961 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 [2020-07-11 01:05:36,962 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 [2020-07-11 01:05:36,963 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 [2020-07-11 01:05:36,964 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 [2020-07-11 01:05:36,964 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 [2020-07-11 01:05:36,964 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 [2020-07-11 01:05:36,965 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 [2020-07-11 01:05:36,968 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 [2020-07-11 01:05:36,969 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 [2020-07-11 01:05:36,970 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 [2020-07-11 01:05:36,970 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 [2020-07-11 01:05:36,974 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 [2020-07-11 01:05:36,975 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 [2020-07-11 01:05:36,975 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 [2020-07-11 01:05:37,005 WARN L170 areAnnotationChecker]: mutex_unlockENTRY has no Hoare annotation [2020-07-11 01:05:37,005 WARN L170 areAnnotationChecker]: mutex_unlockENTRY has no Hoare annotation [2020-07-11 01:05:37,005 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-11 01:05:37,005 WARN L170 areAnnotationChecker]: misc_releaseENTRY has no Hoare annotation [2020-07-11 01:05:37,005 WARN L170 areAnnotationChecker]: misc_releaseENTRY has no Hoare annotation [2020-07-11 01:05:37,006 WARN L170 areAnnotationChecker]: misc_readENTRY has no Hoare annotation [2020-07-11 01:05:37,006 WARN L170 areAnnotationChecker]: misc_openENTRY has no Hoare annotation [2020-07-11 01:05:37,006 WARN L170 areAnnotationChecker]: mutex_lockENTRY has no Hoare annotation [2020-07-11 01:05:37,006 WARN L170 areAnnotationChecker]: mutex_lockENTRY has no Hoare annotation [2020-07-11 01:05:37,006 WARN L170 areAnnotationChecker]: check_final_stateENTRY has no Hoare annotation [2020-07-11 01:05:37,006 WARN L170 areAnnotationChecker]: check_final_stateENTRY has no Hoare annotation [2020-07-11 01:05:37,006 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-11 01:05:37,006 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-11 01:05:37,007 WARN L170 areAnnotationChecker]: __blast_assertENTRY has no Hoare annotation [2020-07-11 01:05:37,007 WARN L170 areAnnotationChecker]: __blast_assertENTRY has no Hoare annotation [2020-07-11 01:05:37,007 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-11 01:05:37,007 WARN L170 areAnnotationChecker]: my_initENTRY has no Hoare annotation [2020-07-11 01:05:37,007 WARN L170 areAnnotationChecker]: misc_llseekENTRY has no Hoare annotation [2020-07-11 01:05:37,008 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-11 01:05:37,008 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-11 01:05:37,008 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-11 01:05:37,008 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-11 01:05:37,008 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-11 01:05:37,008 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-11 01:05:37,008 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-11 01:05:37,008 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-11 01:05:37,009 WARN L170 areAnnotationChecker]: misc_readFINAL has no Hoare annotation [2020-07-11 01:05:37,009 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-11 01:05:37,009 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-11 01:05:37,009 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-11 01:05:37,009 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-11 01:05:37,009 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-11 01:05:37,009 WARN L170 areAnnotationChecker]: L28-2 has no Hoare annotation [2020-07-11 01:05:37,010 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2020-07-11 01:05:37,010 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2020-07-11 01:05:37,010 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-11 01:05:37,010 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-11 01:05:37,010 WARN L170 areAnnotationChecker]: __blast_assertFINAL has no Hoare annotation [2020-07-11 01:05:37,010 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2020-07-11 01:05:37,010 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2020-07-11 01:05:37,011 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-11 01:05:37,011 WARN L170 areAnnotationChecker]: misc_llseekFINAL has no Hoare annotation [2020-07-11 01:05:37,011 WARN L170 areAnnotationChecker]: mutex_unlockFINAL has no Hoare annotation [2020-07-11 01:05:37,011 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-11 01:05:37,011 WARN L170 areAnnotationChecker]: L36-1 has no Hoare annotation [2020-07-11 01:05:37,011 WARN L170 areAnnotationChecker]: L36-1 has no Hoare annotation [2020-07-11 01:05:37,011 WARN L170 areAnnotationChecker]: L41-1 has no Hoare annotation [2020-07-11 01:05:37,011 WARN L170 areAnnotationChecker]: L41-1 has no Hoare annotation [2020-07-11 01:05:37,011 WARN L170 areAnnotationChecker]: misc_readEXIT has no Hoare annotation [2020-07-11 01:05:37,011 WARN L170 areAnnotationChecker]: L57-1 has no Hoare annotation [2020-07-11 01:05:37,012 WARN L170 areAnnotationChecker]: L57-2 has no Hoare annotation [2020-07-11 01:05:37,012 WARN L170 areAnnotationChecker]: mutex_lockFINAL has no Hoare annotation [2020-07-11 01:05:37,012 WARN L170 areAnnotationChecker]: check_final_stateEXIT has no Hoare annotation [2020-07-11 01:05:37,012 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-11 01:05:37,012 WARN L170 areAnnotationChecker]: __blast_assertEXIT has no Hoare annotation [2020-07-11 01:05:37,012 WARN L170 areAnnotationChecker]: __blast_assertEXIT has no Hoare annotation [2020-07-11 01:05:37,012 WARN L170 areAnnotationChecker]: __blast_assertEXIT has no Hoare annotation [2020-07-11 01:05:37,012 WARN L170 areAnnotationChecker]: L75-1 has no Hoare annotation [2020-07-11 01:05:37,012 WARN L170 areAnnotationChecker]: my_initFINAL has no Hoare annotation [2020-07-11 01:05:37,012 WARN L170 areAnnotationChecker]: misc_llseekEXIT has no Hoare annotation [2020-07-11 01:05:37,013 WARN L170 areAnnotationChecker]: mutex_unlockEXIT has no Hoare annotation [2020-07-11 01:05:37,013 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-11 01:05:37,013 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-11 01:05:37,013 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-11 01:05:37,013 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2020-07-11 01:05:37,013 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2020-07-11 01:05:37,013 WARN L170 areAnnotationChecker]: L61 has no Hoare annotation [2020-07-11 01:05:37,013 WARN L170 areAnnotationChecker]: mutex_lockEXIT has no Hoare annotation [2020-07-11 01:05:37,013 WARN L170 areAnnotationChecker]: mutex_lockEXIT has no Hoare annotation [2020-07-11 01:05:37,013 WARN L170 areAnnotationChecker]: mutex_lockEXIT has no Hoare annotation [2020-07-11 01:05:37,014 WARN L170 areAnnotationChecker]: L115 has no Hoare annotation [2020-07-11 01:05:37,014 WARN L170 areAnnotationChecker]: L75-2 has no Hoare annotation [2020-07-11 01:05:37,014 WARN L170 areAnnotationChecker]: my_initEXIT has no Hoare annotation [2020-07-11 01:05:37,014 WARN L170 areAnnotationChecker]: L98-1 has no Hoare annotation [2020-07-11 01:05:37,014 WARN L170 areAnnotationChecker]: misc_releaseFINAL has no Hoare annotation [2020-07-11 01:05:37,014 WARN L170 areAnnotationChecker]: L90-2 has no Hoare annotation [2020-07-11 01:05:37,014 WARN L170 areAnnotationChecker]: misc_openFINAL has no Hoare annotation [2020-07-11 01:05:37,014 WARN L170 areAnnotationChecker]: L62 has no Hoare annotation [2020-07-11 01:05:37,014 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-11 01:05:37,015 WARN L170 areAnnotationChecker]: L76-5 has no Hoare annotation [2020-07-11 01:05:37,015 WARN L170 areAnnotationChecker]: L76-5 has no Hoare annotation [2020-07-11 01:05:37,015 WARN L170 areAnnotationChecker]: L98-2 has no Hoare annotation [2020-07-11 01:05:37,015 WARN L170 areAnnotationChecker]: misc_releaseEXIT has no Hoare annotation [2020-07-11 01:05:37,015 WARN L170 areAnnotationChecker]: L91 has no Hoare annotation [2020-07-11 01:05:37,015 WARN L170 areAnnotationChecker]: misc_openEXIT has no Hoare annotation [2020-07-11 01:05:37,015 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-11 01:05:37,015 WARN L170 areAnnotationChecker]: L76-6 has no Hoare annotation [2020-07-11 01:05:37,015 WARN L170 areAnnotationChecker]: L76-6 has no Hoare annotation [2020-07-11 01:05:37,015 WARN L170 areAnnotationChecker]: L76-1 has no Hoare annotation [2020-07-11 01:05:37,016 WARN L170 areAnnotationChecker]: L76-1 has no Hoare annotation [2020-07-11 01:05:37,016 WARN L170 areAnnotationChecker]: L99 has no Hoare annotation [2020-07-11 01:05:37,016 WARN L170 areAnnotationChecker]: L106-1 has no Hoare annotation [2020-07-11 01:05:37,016 WARN L170 areAnnotationChecker]: L91-1 has no Hoare annotation [2020-07-11 01:05:37,016 WARN L170 areAnnotationChecker]: L82-1 has no Hoare annotation [2020-07-11 01:05:37,016 WARN L170 areAnnotationChecker]: L76-2 has no Hoare annotation [2020-07-11 01:05:37,016 WARN L170 areAnnotationChecker]: L76-4 has no Hoare annotation [2020-07-11 01:05:37,016 WARN L170 areAnnotationChecker]: L99-1 has no Hoare annotation [2020-07-11 01:05:37,016 WARN L170 areAnnotationChecker]: L106-2 has no Hoare annotation [2020-07-11 01:05:37,017 WARN L170 areAnnotationChecker]: L91-2 has no Hoare annotation [2020-07-11 01:05:37,017 WARN L170 areAnnotationChecker]: L82-2 has no Hoare annotation [2020-07-11 01:05:37,017 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2020-07-11 01:05:37,018 WARN L170 areAnnotationChecker]: L99-2 has no Hoare annotation [2020-07-11 01:05:37,018 WARN L170 areAnnotationChecker]: L107 has no Hoare annotation [2020-07-11 01:05:37,018 WARN L170 areAnnotationChecker]: L78-1 has no Hoare annotation [2020-07-11 01:05:37,018 WARN L170 areAnnotationChecker]: L83 has no Hoare annotation [2020-07-11 01:05:37,018 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-11 01:05:37,018 WARN L170 areAnnotationChecker]: L78-2 has no Hoare annotation [2020-07-11 01:05:37,018 WARN L170 areAnnotationChecker]: L83-1 has no Hoare annotation [2020-07-11 01:05:37,018 WARN L170 areAnnotationChecker]: L80-1 has no Hoare annotation [2020-07-11 01:05:37,018 WARN L170 areAnnotationChecker]: L80-1 has no Hoare annotation [2020-07-11 01:05:37,019 WARN L170 areAnnotationChecker]: L83-2 has no Hoare annotation [2020-07-11 01:05:37,019 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2020-07-11 01:05:37,019 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2020-07-11 01:05:37,019 WARN L170 areAnnotationChecker]: L88 has no Hoare annotation [2020-07-11 01:05:37,019 WARN L170 areAnnotationChecker]: L82 has no Hoare annotation [2020-07-11 01:05:37,019 WARN L170 areAnnotationChecker]: L82 has no Hoare annotation [2020-07-11 01:05:37,019 WARN L170 areAnnotationChecker]: L88-1 has no Hoare annotation [2020-07-11 01:05:37,019 WARN L170 areAnnotationChecker]: L88-1 has no Hoare annotation [2020-07-11 01:05:37,019 WARN L170 areAnnotationChecker]: L89 has no Hoare annotation [2020-07-11 01:05:37,020 WARN L170 areAnnotationChecker]: L89 has no Hoare annotation [2020-07-11 01:05:37,020 WARN L170 areAnnotationChecker]: L96 has no Hoare annotation [2020-07-11 01:05:37,020 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2020-07-11 01:05:37,020 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2020-07-11 01:05:37,020 WARN L170 areAnnotationChecker]: L96-1 has no Hoare annotation [2020-07-11 01:05:37,020 WARN L170 areAnnotationChecker]: L96-1 has no Hoare annotation [2020-07-11 01:05:37,020 WARN L170 areAnnotationChecker]: L97 has no Hoare annotation [2020-07-11 01:05:37,020 WARN L170 areAnnotationChecker]: L97 has no Hoare annotation [2020-07-11 01:05:37,020 WARN L170 areAnnotationChecker]: L104 has no Hoare annotation [2020-07-11 01:05:37,021 WARN L170 areAnnotationChecker]: L98 has no Hoare annotation [2020-07-11 01:05:37,021 WARN L170 areAnnotationChecker]: L98 has no Hoare annotation [2020-07-11 01:05:37,021 WARN L170 areAnnotationChecker]: L104-1 has no Hoare annotation [2020-07-11 01:05:37,021 WARN L170 areAnnotationChecker]: L104-1 has no Hoare annotation [2020-07-11 01:05:37,021 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-11 01:05:37,021 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-11 01:05:37,021 WARN L170 areAnnotationChecker]: L112 has no Hoare annotation [2020-07-11 01:05:37,021 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2020-07-11 01:05:37,021 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2020-07-11 01:05:37,021 WARN L170 areAnnotationChecker]: L112-1 has no Hoare annotation [2020-07-11 01:05:37,022 WARN L170 areAnnotationChecker]: L112-1 has no Hoare annotation [2020-07-11 01:05:37,022 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. [2020-07-11 01:05:37,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.07 01:05:37 BoogieIcfgContainer [2020-07-11 01:05:37,029 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-11 01:05:37,034 INFO L168 Benchmark]: Toolchain (without parser) took 16414.08 ms. Allocated memory was 142.6 MB in the beginning and 419.4 MB in the end (delta: 276.8 MB). Free memory was 101.1 MB in the beginning and 133.9 MB in the end (delta: -32.7 MB). Peak memory consumption was 244.1 MB. Max. memory is 7.1 GB. [2020-07-11 01:05:37,035 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-11 01:05:37,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.62 ms. Allocated memory is still 142.6 MB. Free memory was 100.9 MB in the beginning and 90.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-07-11 01:05:37,042 INFO L168 Benchmark]: Boogie Preprocessor took 124.21 ms. Allocated memory was 142.6 MB in the beginning and 199.8 MB in the end (delta: 57.1 MB). Free memory was 90.1 MB in the beginning and 178.5 MB in the end (delta: -88.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-11 01:05:37,043 INFO L168 Benchmark]: RCFGBuilder took 619.66 ms. Allocated memory is still 199.8 MB. Free memory was 177.7 MB in the beginning and 141.5 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2020-07-11 01:05:37,044 INFO L168 Benchmark]: TraceAbstraction took 15355.72 ms. Allocated memory was 199.8 MB in the beginning and 419.4 MB in the end (delta: 219.7 MB). Free memory was 141.5 MB in the beginning and 133.9 MB in the end (delta: 7.7 MB). Peak memory consumption was 227.4 MB. Max. memory is 7.1 GB. [2020-07-11 01:05:37,051 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 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 304.62 ms. Allocated memory is still 142.6 MB. Free memory was 100.9 MB in the beginning and 90.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.21 ms. Allocated memory was 142.6 MB in the beginning and 199.8 MB in the end (delta: 57.1 MB). Free memory was 90.1 MB in the beginning and 178.5 MB in the end (delta: -88.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 619.66 ms. Allocated memory is still 199.8 MB. Free memory was 177.7 MB in the beginning and 141.5 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15355.72 ms. Allocated memory was 199.8 MB in the beginning and 419.4 MB in the end (delta: 219.7 MB). Free memory was 141.5 MB in the beginning and 133.9 MB in the end (delta: 7.7 MB). Peak memory consumption was 227.4 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: 15.1s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 592 SDtfs, 848 SDslu, 1333 SDs, 0 SdLazy, 801 SolverSat, 222 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=320occurred 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: 1.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 529 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s 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...