/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 18:53:02,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 18:53:02,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 18:53:02,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 18:53:02,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 18:53:02,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 18:53:02,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 18:53:02,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 18:53:02,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 18:53:02,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 18:53:02,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 18:53:02,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 18:53:02,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 18:53:02,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 18:53:02,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 18:53:02,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 18:53:02,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 18:53:02,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 18:53:02,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 18:53:02,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 18:53:02,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 18:53:02,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 18:53:02,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 18:53:02,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 18:53:02,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 18:53:02,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 18:53:02,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 18:53:02,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 18:53:02,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 18:53:02,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-15 18:53:02,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 18:53:02,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 18:53:02,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 18:53:02,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 18:53:02,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 18:53:02,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 18:53:02,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 18:53:02,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 18:53:02,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 18:53:02,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 18:53:02,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 18:53:02,650 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 18:53:02,663 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 18:53:02,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 18:53:02,666 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 18:53:02,666 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 18:53:02,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 18:53:02,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 18:53:02,666 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 18:53:02,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 18:53:02,667 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 18:53:02,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 18:53:02,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 18:53:02,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 18:53:02,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 18:53:02,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 18:53:02,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 18:53:02,667 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 18:53:02,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 18:53:02,668 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 18:53:02,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 18:53:02,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 18:53:02,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 18:53:02,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 18:53:02,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 18:53:02,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:53:02,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 18:53:02,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 18:53:02,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 18:53:02,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 18:53:02,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 18:53:02,669 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 18:53:02,669 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 18:53:02,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 18:53:02,669 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 18:53:02,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 18:53:02,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 18:53:02,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 18:53:02,850 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 18:53:02,851 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 18:53:02,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2022-03-15 18:53:02,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a164923f/e766e540fc664d1f8fb747971fb73e8b/FLAGb54f91453 [2022-03-15 18:53:03,280 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 18:53:03,281 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2022-03-15 18:53:03,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a164923f/e766e540fc664d1f8fb747971fb73e8b/FLAGb54f91453 [2022-03-15 18:53:03,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a164923f/e766e540fc664d1f8fb747971fb73e8b [2022-03-15 18:53:03,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 18:53:03,297 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 18:53:03,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 18:53:03,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 18:53:03,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 18:53:03,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:53:03" (1/1) ... [2022-03-15 18:53:03,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b466e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:53:03, skipping insertion in model container [2022-03-15 18:53:03,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:53:03" (1/1) ... [2022-03-15 18:53:03,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 18:53:03,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 18:53:03,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c[3134,3147] [2022-03-15 18:53:03,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:53:03,454 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 18:53:03,468 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c[3134,3147] [2022-03-15 18:53:03,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:53:03,478 INFO L208 MainTranslator]: Completed translation [2022-03-15 18:53:03,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:53:03 WrapperNode [2022-03-15 18:53:03,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 18:53:03,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 18:53:03,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 18:53:03,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 18:53:03,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:53:03" (1/1) ... [2022-03-15 18:53:03,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:53:03" (1/1) ... [2022-03-15 18:53:03,504 INFO L137 Inliner]: procedures = 21, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 119 [2022-03-15 18:53:03,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 18:53:03,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 18:53:03,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 18:53:03,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 18:53:03,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:53:03" (1/1) ... [2022-03-15 18:53:03,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:53:03" (1/1) ... [2022-03-15 18:53:03,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:53:03" (1/1) ... [2022-03-15 18:53:03,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:53:03" (1/1) ... [2022-03-15 18:53:03,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:53:03" (1/1) ... [2022-03-15 18:53:03,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:53:03" (1/1) ... [2022-03-15 18:53:03,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:53:03" (1/1) ... [2022-03-15 18:53:03,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 18:53:03,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 18:53:03,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 18:53:03,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 18:53:03,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:53:03" (1/1) ... [2022-03-15 18:53:03,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:53:03,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:53:03,555 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 18:53:03,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 18:53:03,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 18:53:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 18:53:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 18:53:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 18:53:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 18:53:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 18:53:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 18:53:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 18:53:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 18:53:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 18:53:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 18:53:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 18:53:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 18:53:03,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 18:53:03,589 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 18:53:03,661 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 18:53:03,663 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 18:53:03,901 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 18:53:03,961 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 18:53:03,961 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 18:53:03,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:53:03 BoogieIcfgContainer [2022-03-15 18:53:03,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 18:53:03,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 18:53:03,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 18:53:03,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 18:53:03,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 06:53:03" (1/3) ... [2022-03-15 18:53:03,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9d721d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:53:03, skipping insertion in model container [2022-03-15 18:53:03,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:53:03" (2/3) ... [2022-03-15 18:53:03,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9d721d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:53:03, skipping insertion in model container [2022-03-15 18:53:03,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:53:03" (3/3) ... [2022-03-15 18:53:03,968 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2022-03-15 18:53:03,971 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 18:53:03,971 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 18:53:03,972 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 18:53:03,972 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 18:53:03,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:03,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:03,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:03,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:03,999 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,000 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,000 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,000 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,000 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,001 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,005 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,005 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,007 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,007 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,008 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,008 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,008 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:53:04,012 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-15 18:53:04,059 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 18:53:04,065 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 18:53:04,066 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-15 18:53:04,082 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 18:53:04,091 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 139 transitions, 294 flow [2022-03-15 18:53:04,093 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 139 transitions, 294 flow [2022-03-15 18:53:04,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 137 places, 139 transitions, 294 flow [2022-03-15 18:53:04,149 INFO L129 PetriNetUnfolder]: 9/137 cut-off events. [2022-03-15 18:53:04,149 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-03-15 18:53:04,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 137 events. 9/137 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2022-03-15 18:53:04,153 INFO L116 LiptonReduction]: Number of co-enabled transitions 452 [2022-03-15 18:53:07,135 INFO L131 LiptonReduction]: Checked pairs total: 2460 [2022-03-15 18:53:07,136 INFO L133 LiptonReduction]: Total number of compositions: 140 [2022-03-15 18:53:07,151 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 25 transitions, 66 flow [2022-03-15 18:53:07,173 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 110 states, 109 states have (on average 2.3486238532110093) internal successors, (256), 109 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:07,175 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 109 states have (on average 2.3486238532110093) internal successors, (256), 109 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:07,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-03-15 18:53:07,181 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:53:07,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:53:07,182 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 18:53:07,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:53:07,186 INFO L85 PathProgramCache]: Analyzing trace with hash -15375327, now seen corresponding path program 1 times [2022-03-15 18:53:07,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:53:07,212 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093833063] [2022-03-15 18:53:07,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:53:07,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:53:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:53:07,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:53:07,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:53:07,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093833063] [2022-03-15 18:53:07,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093833063] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:53:07,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:53:07,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 18:53:07,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1169305461] [2022-03-15 18:53:07,474 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:53:07,480 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:53:07,500 INFO L252 McrAutomatonBuilder]: Finished intersection with 50 states and 82 transitions. [2022-03-15 18:53:07,501 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:53:07,846 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:53:07,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 18:53:07,847 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:53:07,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 18:53:07,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:53:07,863 INFO L87 Difference]: Start difference. First operand has 110 states, 109 states have (on average 2.3486238532110093) internal successors, (256), 109 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:07,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:53:07,907 INFO L93 Difference]: Finished difference Result 144 states and 314 transitions. [2022-03-15 18:53:07,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 18:53:07,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-03-15 18:53:07,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:53:07,916 INFO L225 Difference]: With dead ends: 144 [2022-03-15 18:53:07,916 INFO L226 Difference]: Without dead ends: 140 [2022-03-15 18:53:07,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:53:07,919 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:53:07,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 5 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:53:07,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-03-15 18:53:07,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 136. [2022-03-15 18:53:07,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 2.2074074074074073) internal successors, (298), 135 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:07,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 298 transitions. [2022-03-15 18:53:07,950 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 298 transitions. Word has length 18 [2022-03-15 18:53:07,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:53:07,950 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 298 transitions. [2022-03-15 18:53:07,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:07,950 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 298 transitions. [2022-03-15 18:53:07,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 18:53:07,951 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:53:07,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:53:07,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 18:53:07,952 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 18:53:07,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:53:07,952 INFO L85 PathProgramCache]: Analyzing trace with hash -450844244, now seen corresponding path program 1 times [2022-03-15 18:53:07,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:53:07,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517613932] [2022-03-15 18:53:07,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:53:07,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:53:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:53:08,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:53:08,026 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:53:08,026 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517613932] [2022-03-15 18:53:08,026 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517613932] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:53:08,026 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:53:08,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 18:53:08,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1389064101] [2022-03-15 18:53:08,027 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:53:08,028 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:53:08,032 INFO L252 McrAutomatonBuilder]: Finished intersection with 54 states and 89 transitions. [2022-03-15 18:53:08,032 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:53:08,333 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [786#(and (or (<= ~count~0 1) (not (= (mod ~sFlag~0 256) 0))) (<= ~count~0 2))] [2022-03-15 18:53:08,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 18:53:08,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:53:08,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 18:53:08,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2022-03-15 18:53:08,334 INFO L87 Difference]: Start difference. First operand 136 states and 298 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:08,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:53:08,447 INFO L93 Difference]: Finished difference Result 136 states and 281 transitions. [2022-03-15 18:53:08,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 18:53:08,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 18:53:08,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:53:08,449 INFO L225 Difference]: With dead ends: 136 [2022-03-15 18:53:08,449 INFO L226 Difference]: Without dead ends: 114 [2022-03-15 18:53:08,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2022-03-15 18:53:08,450 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 40 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:53:08,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 8 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:53:08,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-03-15 18:53:08,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 110. [2022-03-15 18:53:08,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 2.110091743119266) internal successors, (230), 109 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:08,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 230 transitions. [2022-03-15 18:53:08,456 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 230 transitions. Word has length 19 [2022-03-15 18:53:08,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:53:08,456 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 230 transitions. [2022-03-15 18:53:08,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:08,456 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 230 transitions. [2022-03-15 18:53:08,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 18:53:08,457 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:53:08,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:53:08,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 18:53:08,458 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 18:53:08,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:53:08,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1267813244, now seen corresponding path program 1 times [2022-03-15 18:53:08,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:53:08,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279241496] [2022-03-15 18:53:08,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:53:08,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:53:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:53:08,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:53:08,528 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:53:08,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279241496] [2022-03-15 18:53:08,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279241496] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:53:08,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:53:08,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 18:53:08,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1408433895] [2022-03-15 18:53:08,528 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:53:08,530 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:53:08,536 INFO L252 McrAutomatonBuilder]: Finished intersection with 62 states and 109 transitions. [2022-03-15 18:53:08,537 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:53:08,902 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [1149#(= (mod thread1Thread1of1ForFork0_~cond~0 256) 0), 1151#(not (= (+ (- 1) ~count~0) 0)), 1152#(and (or (not (= (+ ~count~0 1) 1)) (not (= (mod ~sFlag~0 256) 0))) (or (= (mod ~sFlag~0 256) 0) (not (= ~count~0 1)))), 1150#(not (= ~count~0 0))] [2022-03-15 18:53:08,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 18:53:08,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:53:08,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 18:53:08,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-03-15 18:53:08,904 INFO L87 Difference]: Start difference. First operand 110 states and 230 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:09,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:53:09,067 INFO L93 Difference]: Finished difference Result 154 states and 282 transitions. [2022-03-15 18:53:09,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 18:53:09,067 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 18:53:09,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:53:09,068 INFO L225 Difference]: With dead ends: 154 [2022-03-15 18:53:09,068 INFO L226 Difference]: Without dead ends: 130 [2022-03-15 18:53:09,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-03-15 18:53:09,069 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 52 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:53:09,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 26 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:53:09,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-03-15 18:53:09,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 96. [2022-03-15 18:53:09,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.9789473684210526) internal successors, (188), 95 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:09,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 188 transitions. [2022-03-15 18:53:09,075 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 188 transitions. Word has length 19 [2022-03-15 18:53:09,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:53:09,075 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 188 transitions. [2022-03-15 18:53:09,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:09,075 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 188 transitions. [2022-03-15 18:53:09,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 18:53:09,076 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:53:09,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:53:09,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 18:53:09,077 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 18:53:09,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:53:09,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1317109124, now seen corresponding path program 2 times [2022-03-15 18:53:09,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:53:09,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683458424] [2022-03-15 18:53:09,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:53:09,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:53:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:53:09,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:53:09,142 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:53:09,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683458424] [2022-03-15 18:53:09,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683458424] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:53:09,142 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:53:09,142 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 18:53:09,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1570982980] [2022-03-15 18:53:09,143 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:53:09,144 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:53:09,149 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 74 transitions. [2022-03-15 18:53:09,149 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:53:09,284 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [1507#(= (mod thread1Thread1of1ForFork0_~cond~0 256) 0), 1508#(not (= ~count~0 0))] [2022-03-15 18:53:09,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 18:53:09,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:53:09,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 18:53:09,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-15 18:53:09,286 INFO L87 Difference]: Start difference. First operand 96 states and 188 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:09,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:53:09,427 INFO L93 Difference]: Finished difference Result 150 states and 267 transitions. [2022-03-15 18:53:09,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 18:53:09,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 18:53:09,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:53:09,428 INFO L225 Difference]: With dead ends: 150 [2022-03-15 18:53:09,428 INFO L226 Difference]: Without dead ends: 140 [2022-03-15 18:53:09,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-03-15 18:53:09,430 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 40 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:53:09,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 16 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:53:09,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-03-15 18:53:09,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 94. [2022-03-15 18:53:09,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.946236559139785) internal successors, (181), 93 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:09,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 181 transitions. [2022-03-15 18:53:09,435 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 181 transitions. Word has length 19 [2022-03-15 18:53:09,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:53:09,436 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 181 transitions. [2022-03-15 18:53:09,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:09,436 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 181 transitions. [2022-03-15 18:53:09,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 18:53:09,437 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:53:09,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:53:09,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 18:53:09,437 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 18:53:09,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:53:09,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1314483348, now seen corresponding path program 3 times [2022-03-15 18:53:09,438 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:53:09,438 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949977589] [2022-03-15 18:53:09,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:53:09,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:53:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:53:09,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:53:09,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:53:09,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949977589] [2022-03-15 18:53:09,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949977589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:53:09,507 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:53:09,508 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 18:53:09,508 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [598599868] [2022-03-15 18:53:09,508 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:53:09,510 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:53:09,514 INFO L252 McrAutomatonBuilder]: Finished intersection with 48 states and 78 transitions. [2022-03-15 18:53:09,514 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:53:09,840 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:53:09,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 18:53:09,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:53:09,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 18:53:09,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 18:53:09,841 INFO L87 Difference]: Start difference. First operand 94 states and 181 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:09,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:53:09,886 INFO L93 Difference]: Finished difference Result 93 states and 180 transitions. [2022-03-15 18:53:09,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 18:53:09,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 18:53:09,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:53:09,887 INFO L225 Difference]: With dead ends: 93 [2022-03-15 18:53:09,887 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 18:53:09,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 18:53:09,887 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:53:09,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 5 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:53:09,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 18:53:09,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 18:53:09,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:09,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 18:53:09,888 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2022-03-15 18:53:09,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:53:09,888 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 18:53:09,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:53:09,889 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 18:53:09,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 18:53:09,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-15 18:53:09,891 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-15 18:53:09,891 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-15 18:53:09,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 18:53:09,893 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2022-03-15 18:53:09,895 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 18:53:09,895 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 18:53:09,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 06:53:09 BasicIcfg [2022-03-15 18:53:09,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 18:53:09,898 INFO L158 Benchmark]: Toolchain (without parser) took 6600.72ms. Allocated memory was 194.0MB in the beginning and 232.8MB in the end (delta: 38.8MB). Free memory was 142.8MB in the beginning and 134.6MB in the end (delta: 8.2MB). Peak memory consumption was 47.8MB. Max. memory is 8.0GB. [2022-03-15 18:53:09,898 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory is still 159.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 18:53:09,898 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.17ms. Allocated memory is still 194.0MB. Free memory was 142.5MB in the beginning and 169.4MB in the end (delta: -26.9MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. [2022-03-15 18:53:09,899 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.73ms. Allocated memory is still 194.0MB. Free memory was 169.4MB in the beginning and 167.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 18:53:09,899 INFO L158 Benchmark]: Boogie Preprocessor took 18.54ms. Allocated memory is still 194.0MB. Free memory was 167.3MB in the beginning and 166.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 18:53:09,899 INFO L158 Benchmark]: RCFGBuilder took 438.46ms. Allocated memory is still 194.0MB. Free memory was 166.2MB in the beginning and 150.0MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-03-15 18:53:09,899 INFO L158 Benchmark]: TraceAbstraction took 5933.82ms. Allocated memory was 194.0MB in the beginning and 232.8MB in the end (delta: 38.8MB). Free memory was 149.5MB in the beginning and 134.6MB in the end (delta: 14.9MB). Peak memory consumption was 54.7MB. Max. memory is 8.0GB. [2022-03-15 18:53:09,901 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory is still 159.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 180.17ms. Allocated memory is still 194.0MB. Free memory was 142.5MB in the beginning and 169.4MB in the end (delta: -26.9MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.73ms. Allocated memory is still 194.0MB. Free memory was 169.4MB in the beginning and 167.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.54ms. Allocated memory is still 194.0MB. Free memory was 167.3MB in the beginning and 166.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 438.46ms. Allocated memory is still 194.0MB. Free memory was 166.2MB in the beginning and 150.0MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 5933.82ms. Allocated memory was 194.0MB in the beginning and 232.8MB in the end (delta: 38.8MB). Free memory was 149.5MB in the beginning and 134.6MB in the end (delta: 14.9MB). Peak memory consumption was 54.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 137 PlacesBefore, 30 PlacesAfterwards, 139 TransitionsBefore, 25 TransitionsAfterwards, 452 CoEnabledTransitionPairs, 8 FixpointIterations, 96 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 4 ConcurrentYvCompositions, 7 ChoiceCompositions, 140 TotalNumberOfCompositions, 2460 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1109, positive: 913, positive conditional: 0, positive unconditional: 913, negative: 196, negative conditional: 0, negative unconditional: 196, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 267, positive: 243, positive conditional: 0, positive unconditional: 243, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1109, positive: 670, positive conditional: 0, positive unconditional: 670, negative: 172, negative conditional: 0, negative unconditional: 172, unknown: 267, unknown conditional: 0, unknown unconditional: 267] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 115]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 152 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 151 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 151 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 302 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 612 IncrementalHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 21 mSDtfsCounter, 612 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 152 SyntacticMatches, 9 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=1, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 88 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 449 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 18:53:09,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...