/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-lit/qw2004-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 15:49:37,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 15:49:37,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 15:49:37,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 15:49:37,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 15:49:37,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 15:49:37,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 15:49:37,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 15:49:37,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 15:49:37,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 15:49:37,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 15:49:37,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 15:49:37,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 15:49:37,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 15:49:37,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 15:49:37,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 15:49:37,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 15:49:37,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 15:49:37,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 15:49:37,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 15:49:37,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 15:49:37,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 15:49:37,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 15:49:37,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 15:49:37,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 15:49:37,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 15:49:37,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 15:49:37,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 15:49:37,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 15:49:37,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 15:49:37,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 15:49:37,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 15:49:37,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 15:49:37,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 15:49:37,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 15:49:37,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 15:49:37,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 15:49:37,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 15:49:37,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 15:49:37,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 15:49:37,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 15:49:37,649 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf [2020-04-18 15:49:37,672 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 15:49:37,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 15:49:37,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 15:49:37,675 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 15:49:37,675 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 15:49:37,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 15:49:37,676 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 15:49:37,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 15:49:37,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 15:49:37,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 15:49:37,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 15:49:37,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 15:49:37,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 15:49:37,678 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 15:49:37,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 15:49:37,679 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 15:49:37,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 15:49:37,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 15:49:37,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 15:49:37,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 15:49:37,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 15:49:37,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:49:37,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 15:49:37,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 15:49:37,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 15:49:37,681 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 15:49:37,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 15:49:37,682 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 15:49:37,682 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 15:49:37,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 15:49:37,683 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 15:49:37,979 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 15:49:37,998 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 15:49:38,002 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 15:49:38,003 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 15:49:38,004 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 15:49:38,005 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-1.i [2020-04-18 15:49:38,070 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbbbdc4ac/688d6d81647a406793a73ca4e739869d/FLAGc7850dfe7 [2020-04-18 15:49:38,671 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 15:49:38,672 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-1.i [2020-04-18 15:49:38,687 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbbbdc4ac/688d6d81647a406793a73ca4e739869d/FLAGc7850dfe7 [2020-04-18 15:49:38,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbbbdc4ac/688d6d81647a406793a73ca4e739869d [2020-04-18 15:49:38,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 15:49:38,966 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 15:49:38,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 15:49:38,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 15:49:38,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 15:49:38,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:49:38" (1/1) ... [2020-04-18 15:49:38,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3550ea4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:38, skipping insertion in model container [2020-04-18 15:49:38,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:49:38" (1/1) ... [2020-04-18 15:49:38,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 15:49:39,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 15:49:39,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:49:39,531 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 15:49:39,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:49:39,658 INFO L208 MainTranslator]: Completed translation [2020-04-18 15:49:39,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:39 WrapperNode [2020-04-18 15:49:39,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 15:49:39,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 15:49:39,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 15:49:39,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 15:49:39,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:39" (1/1) ... [2020-04-18 15:49:39,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:39" (1/1) ... [2020-04-18 15:49:39,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 15:49:39,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 15:49:39,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 15:49:39,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 15:49:39,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:39" (1/1) ... [2020-04-18 15:49:39,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:39" (1/1) ... [2020-04-18 15:49:39,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:39" (1/1) ... [2020-04-18 15:49:39,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:39" (1/1) ... [2020-04-18 15:49:39,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:39" (1/1) ... [2020-04-18 15:49:39,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:39" (1/1) ... [2020-04-18 15:49:39,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:39" (1/1) ... [2020-04-18 15:49:39,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 15:49:39,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 15:49:39,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 15:49:39,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 15:49:39,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:39" (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 [2020-04-18 15:49:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2020-04-18 15:49:39,810 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2020-04-18 15:49:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 15:49:39,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 15:49:39,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 15:49:39,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 15:49:39,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 15:49:39,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 15:49:39,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 15:49:39,813 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 15:49:40,321 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 15:49:40,321 INFO L295 CfgBuilder]: Removed 20 assume(true) statements. [2020-04-18 15:49:40,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:49:40 BoogieIcfgContainer [2020-04-18 15:49:40,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 15:49:40,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 15:49:40,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 15:49:40,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 15:49:40,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:49:38" (1/3) ... [2020-04-18 15:49:40,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de7f4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:49:40, skipping insertion in model container [2020-04-18 15:49:40,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:49:39" (2/3) ... [2020-04-18 15:49:40,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de7f4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:49:40, skipping insertion in model container [2020-04-18 15:49:40,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:49:40" (3/3) ... [2020-04-18 15:49:40,334 INFO L109 eAbstractionObserver]: Analyzing ICFG qw2004-1.i [2020-04-18 15:49:40,345 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 15:49:40,345 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 15:49:40,353 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 15:49:40,354 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 15:49:40,383 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,383 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,383 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,384 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,384 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,384 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,384 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,385 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,385 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,385 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,385 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,386 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,386 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,386 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,386 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,386 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,386 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,387 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,387 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,387 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,387 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,388 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,388 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,389 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,389 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,389 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,389 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,390 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,390 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,390 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,395 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,395 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,395 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,396 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,396 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,396 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,396 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,396 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,397 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,397 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,397 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:49:40,413 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-04-18 15:49:40,434 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:49:40,435 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:49:40,435 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:49:40,435 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:49:40,435 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:49:40,435 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:49:40,436 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:49:40,436 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:49:40,451 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 86 transitions, 177 flow [2020-04-18 15:49:40,453 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 86 transitions, 177 flow [2020-04-18 15:49:40,493 INFO L129 PetriNetUnfolder]: 6/85 cut-off events. [2020-04-18 15:49:40,494 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:49:40,500 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 6/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 69. Up to 3 conditions per place. [2020-04-18 15:49:40,504 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 86 transitions, 177 flow [2020-04-18 15:49:40,527 INFO L129 PetriNetUnfolder]: 6/85 cut-off events. [2020-04-18 15:49:40,527 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:49:40,528 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 6/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 69. Up to 3 conditions per place. [2020-04-18 15:49:40,531 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2160 [2020-04-18 15:49:40,532 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:49:42,362 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3001 [2020-04-18 15:49:42,362 INFO L214 etLargeBlockEncoding]: Total number of compositions: 94 [2020-04-18 15:49:42,366 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 15 transitions, 35 flow [2020-04-18 15:49:42,379 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 38 states. [2020-04-18 15:49:42,381 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-04-18 15:49:42,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-18 15:49:42,389 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:42,390 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-04-18 15:49:42,391 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:42,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:42,402 INFO L82 PathProgramCache]: Analyzing trace with hash 11115006, now seen corresponding path program 1 times [2020-04-18 15:49:42,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:42,412 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1472724571] [2020-04-18 15:49:42,436 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:42,451 INFO L259 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-04-18 15:49:42,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-04-18 15:49:42,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-18 15:49:42,453 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:42,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:42,456 INFO L82 PathProgramCache]: Analyzing trace with hash 11115006, now seen corresponding path program 2 times [2020-04-18 15:49:42,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:42,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400736722] [2020-04-18 15:49:42,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:42,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:49:42,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400736722] [2020-04-18 15:49:42,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:42,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 15:49:42,710 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:42,710 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:42,711 INFO L259 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-04-18 15:49:42,711 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:42,716 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:49:42,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:49:42,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:49:42,723 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2020-04-18 15:49:42,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:42,728 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2020-04-18 15:49:42,728 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2020-04-18 15:49:42,728 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:49:42,730 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1472724571] [2020-04-18 15:49:42,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:49:42,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 15:49:42,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1472724571] [2020-04-18 15:49:42,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 15:49:42,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:49:42,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:49:42,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:49:42,750 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2020-04-18 15:49:42,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:42,773 INFO L93 Difference]: Finished difference Result 36 states and 65 transitions. [2020-04-18 15:49:42,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 15:49:42,775 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-04-18 15:49:42,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:49:42,786 INFO L225 Difference]: With dead ends: 36 [2020-04-18 15:49:42,786 INFO L226 Difference]: Without dead ends: 15 [2020-04-18 15:49:42,789 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:49:42,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-04-18 15:49:42,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-04-18 15:49:42,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-04-18 15:49:42,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2020-04-18 15:49:42,829 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 21 transitions. Word has length 4 [2020-04-18 15:49:42,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:49:42,830 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 21 transitions. [2020-04-18 15:49:42,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 15:49:42,830 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 21 transitions. [2020-04-18 15:49:42,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:49:42,830 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:42,830 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:49:42,831 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:42,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:42,831 INFO L82 PathProgramCache]: Analyzing trace with hash -642058695, now seen corresponding path program 1 times [2020-04-18 15:49:42,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:42,832 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [819633070] [2020-04-18 15:49:42,832 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:42,834 INFO L259 McrAutomatonBuilder]: Finished intersection with 17 states and 24 transitions. [2020-04-18 15:49:42,834 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-04-18 15:49:42,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:49:42,835 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:42,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:42,835 INFO L82 PathProgramCache]: Analyzing trace with hash -642058695, now seen corresponding path program 2 times [2020-04-18 15:49:42,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:42,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594856905] [2020-04-18 15:49:42,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:42,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:49:42,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594856905] [2020-04-18 15:49:42,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:42,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:49:42,980 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:42,982 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:42,989 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 12 transitions. [2020-04-18 15:49:42,989 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:43,038 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:49:43,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:49:43,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:49:43,040 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 7 states. [2020-04-18 15:49:43,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:43,218 INFO L93 Difference]: Finished difference Result 23 states and 33 transitions. [2020-04-18 15:49:43,218 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2020-04-18 15:49:43,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:49:43,219 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:49:43,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:43,220 INFO L82 PathProgramCache]: Analyzing trace with hash -617542035, now seen corresponding path program 3 times [2020-04-18 15:49:43,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:43,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383308868] [2020-04-18 15:49:43,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:43,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:49:43,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383308868] [2020-04-18 15:49:43,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:43,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:49:43,300 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:43,301 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:43,302 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 15:49:43,305 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:43,318 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:49:43,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:49:43,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-04-18 15:49:43,319 INFO L87 Difference]: Start difference. First operand 23 states and 33 transitions. Second operand 5 states. [2020-04-18 15:49:43,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:43,348 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2020-04-18 15:49:43,348 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2020-04-18 15:49:43,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:49:43,349 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 15:49:43,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:43,349 INFO L82 PathProgramCache]: Analyzing trace with hash -35723805, now seen corresponding path program 4 times [2020-04-18 15:49:43,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:43,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459748693] [2020-04-18 15:49:43,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:43,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:49:43,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459748693] [2020-04-18 15:49:43,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:43,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:49:43,426 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:43,426 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:43,427 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 15:49:43,427 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:43,460 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:49:43,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:49:43,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2020-04-18 15:49:43,462 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand 4 states. [2020-04-18 15:49:43,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:43,489 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2020-04-18 15:49:43,489 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2020-04-18 15:49:43,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:49:43,491 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [819633070] [2020-04-18 15:49:43,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:49:43,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:49:43,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [819633070] [2020-04-18 15:49:43,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-04-18 15:49:43,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:49:43,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-18 15:49:43,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2020-04-18 15:49:43,495 INFO L87 Difference]: Start difference. First operand 15 states and 21 transitions. Second operand 10 states. [2020-04-18 15:49:43,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:43,648 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2020-04-18 15:49:43,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 15:49:43,648 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 8 [2020-04-18 15:49:43,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:49:43,648 INFO L225 Difference]: With dead ends: 23 [2020-04-18 15:49:43,649 INFO L226 Difference]: Without dead ends: 10 [2020-04-18 15:49:43,650 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2020-04-18 15:49:43,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-04-18 15:49:43,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-04-18 15:49:43,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-04-18 15:49:43,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2020-04-18 15:49:43,652 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 8 [2020-04-18 15:49:43,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:49:43,653 INFO L479 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2020-04-18 15:49:43,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-04-18 15:49:43,653 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-04-18 15:49:43,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:49:43,654 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:49:43,654 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:49:43,654 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:49:43,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:43,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1108178775, now seen corresponding path program 1 times [2020-04-18 15:49:43,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:49:43,655 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1186354507] [2020-04-18 15:49:43,655 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:43,656 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 29 transitions. [2020-04-18 15:49:43,656 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-04-18 15:49:43,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:49:43,657 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:49:43,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:43,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1548037025, now seen corresponding path program 2 times [2020-04-18 15:49:43,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:43,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513641603] [2020-04-18 15:49:43,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:43,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:49:43,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513641603] [2020-04-18 15:49:43,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:43,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 15:49:43,717 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:43,718 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:43,719 INFO L259 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-04-18 15:49:43,719 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:43,788 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 15:49:43,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-18 15:49:43,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-04-18 15:49:43,790 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 10 states. [2020-04-18 15:49:43,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:43,940 INFO L93 Difference]: Finished difference Result 30 states and 42 transitions. [2020-04-18 15:49:43,940 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2020-04-18 15:49:43,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:49:43,941 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:49:43,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:49:43,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1108178775, now seen corresponding path program 3 times [2020-04-18 15:49:43,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:49:43,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247378243] [2020-04-18 15:49:43,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:49:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:49:43,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:49:43,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247378243] [2020-04-18 15:49:43,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:49:43,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:49:43,985 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:49:43,986 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:49:43,987 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 15:49:43,987 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:49:44,028 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:49:44,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:49:44,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-04-18 15:49:44,029 INFO L87 Difference]: Start difference. First operand 30 states and 42 transitions. Second operand 5 states. [2020-04-18 15:49:44,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:44,047 INFO L93 Difference]: Finished difference Result 30 states and 42 transitions. [2020-04-18 15:49:44,047 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2020-04-18 15:49:44,048 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:49:44,048 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1186354507] [2020-04-18 15:49:44,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:49:44,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 15:49:44,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1186354507] [2020-04-18 15:49:44,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 15:49:44,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:49:44,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 15:49:44,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-04-18 15:49:44,050 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand 13 states. [2020-04-18 15:49:44,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:49:44,168 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-04-18 15:49:44,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 15:49:44,169 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 9 [2020-04-18 15:49:44,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:49:44,169 INFO L225 Difference]: With dead ends: 6 [2020-04-18 15:49:44,169 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 15:49:44,170 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2020-04-18 15:49:44,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 15:49:44,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 15:49:44,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 15:49:44,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 15:49:44,171 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-04-18 15:49:44,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:49:44,171 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 15:49:44,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 15:49:44,171 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 15:49:44,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:49:44,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:49:44 BasicIcfg [2020-04-18 15:49:44,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 15:49:44,177 INFO L168 Benchmark]: Toolchain (without parser) took 5232.00 ms. Allocated memory was 136.3 MB in the beginning and 253.8 MB in the end (delta: 117.4 MB). Free memory was 99.3 MB in the beginning and 107.8 MB in the end (delta: -8.5 MB). Peak memory consumption was 108.9 MB. Max. memory is 7.1 GB. [2020-04-18 15:49:44,178 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 15:49:44,179 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.89 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 97.4 MB in the beginning and 158.8 MB in the end (delta: -61.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-04-18 15:49:44,180 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.99 ms. Allocated memory is still 201.3 MB. Free memory was 158.8 MB in the beginning and 156.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-04-18 15:49:44,180 INFO L168 Benchmark]: Boogie Preprocessor took 27.63 ms. Allocated memory is still 201.3 MB. Free memory was 156.6 MB in the beginning and 155.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-04-18 15:49:44,181 INFO L168 Benchmark]: RCFGBuilder took 585.30 ms. Allocated memory is still 201.3 MB. Free memory was 155.2 MB in the beginning and 128.7 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-04-18 15:49:44,182 INFO L168 Benchmark]: TraceAbstraction took 3847.50 ms. Allocated memory was 201.3 MB in the beginning and 253.8 MB in the end (delta: 52.4 MB). Free memory was 128.7 MB in the beginning and 107.8 MB in the end (delta: 20.9 MB). Peak memory consumption was 73.3 MB. Max. memory is 7.1 GB. [2020-04-18 15:49:44,186 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 691.89 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 97.4 MB in the beginning and 158.8 MB in the end (delta: -61.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.99 ms. Allocated memory is still 201.3 MB. Free memory was 158.8 MB in the beginning and 156.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.63 ms. Allocated memory is still 201.3 MB. Free memory was 156.6 MB in the beginning and 155.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 585.30 ms. Allocated memory is still 201.3 MB. Free memory was 155.2 MB in the beginning and 128.7 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3847.50 ms. Allocated memory was 201.3 MB in the beginning and 253.8 MB in the end (delta: 52.4 MB). Free memory was 128.7 MB in the beginning and 107.8 MB in the end (delta: 20.9 MB). Peak memory consumption was 73.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 84 ProgramPointsBefore, 17 ProgramPointsAfterwards, 86 TransitionsBefore, 15 TransitionsAfterwards, 2160 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 4 ChoiceCompositions, 1321 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 3001 CheckedPairsTotal, 94 TotalNumberOfCompositions - PositiveResult [Line: 679]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 27 SDtfs, 38 SDslu, 30 SDs, 0 SdLazy, 69 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 correct! Received shutdown request...