/usr/bin/java -Xmx16000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 11:06:28,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 11:06:28,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 11:06:28,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 11:06:28,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 11:06:28,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 11:06:28,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 11:06:28,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 11:06:28,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 11:06:28,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 11:06:28,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 11:06:28,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 11:06:28,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 11:06:28,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 11:06:28,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 11:06:28,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 11:06:28,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 11:06:28,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 11:06:28,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 11:06:28,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 11:06:28,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 11:06:28,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 11:06:28,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 11:06:28,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 11:06:28,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 11:06:28,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 11:06:28,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 11:06:28,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 11:06:28,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 11:06:28,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 11:06:28,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 11:06:28,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 11:06:28,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 11:06:28,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 11:06:28,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 11:06:28,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 11:06:28,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 11:06:28,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 11:06:28,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 11:06:28,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 11:06:28,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 11:06:28,485 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-09 11:06:28,508 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 11:06:28,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 11:06:28,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 11:06:28,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 11:06:28,510 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 11:06:28,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 11:06:28,511 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 11:06:28,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 11:06:28,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 11:06:28,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 11:06:28,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 11:06:28,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 11:06:28,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 11:06:28,512 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 11:06:28,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 11:06:28,513 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 11:06:28,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 11:06:28,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 11:06:28,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 11:06:28,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 11:06:28,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 11:06:28,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 11:06:28,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 11:06:28,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 11:06:28,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 11:06:28,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-09 11:06:28,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 11:06:28,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-09 11:06:28,515 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-09 11:06:28,515 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 11:06:28,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 11:06:28,845 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 11:06:28,849 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 11:06:28,850 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 11:06:28,851 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 11:06:28,852 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2020-10-09 11:06:28,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a8cb25cd/08148ccbc9274df19a0be9e5d6ba4a00/FLAG40a427522 [2020-10-09 11:06:29,441 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 11:06:29,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2020-10-09 11:06:29,459 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a8cb25cd/08148ccbc9274df19a0be9e5d6ba4a00/FLAG40a427522 [2020-10-09 11:06:29,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a8cb25cd/08148ccbc9274df19a0be9e5d6ba4a00 [2020-10-09 11:06:29,773 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 11:06:29,775 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 11:06:29,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 11:06:29,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 11:06:29,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 11:06:29,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 11:06:29" (1/1) ... [2020-10-09 11:06:29,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6713cff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:06:29, skipping insertion in model container [2020-10-09 11:06:29,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 11:06:29" (1/1) ... [2020-10-09 11:06:29,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 11:06:29,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 11:06:30,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 11:06:30,344 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 11:06:30,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 11:06:30,483 INFO L208 MainTranslator]: Completed translation [2020-10-09 11:06:30,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:06:30 WrapperNode [2020-10-09 11:06:30,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 11:06:30,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 11:06:30,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 11:06:30,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 11:06:30,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:06:30" (1/1) ... [2020-10-09 11:06:30,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:06:30" (1/1) ... [2020-10-09 11:06:30,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 11:06:30,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 11:06:30,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 11:06:30,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 11:06:30,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:06:30" (1/1) ... [2020-10-09 11:06:30,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:06:30" (1/1) ... [2020-10-09 11:06:30,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:06:30" (1/1) ... [2020-10-09 11:06:30,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:06:30" (1/1) ... [2020-10-09 11:06:30,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:06:30" (1/1) ... [2020-10-09 11:06:30,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:06:30" (1/1) ... [2020-10-09 11:06:30,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:06:30" (1/1) ... [2020-10-09 11:06:30,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 11:06:30,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 11:06:30,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 11:06:30,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 11:06:30,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:06:30" (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 [2020-10-09 11:06:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-09 11:06:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-09 11:06:30,654 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-09 11:06:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-09 11:06:30,655 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-09 11:06:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 11:06:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 11:06:30,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 11:06:30,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 11:06:30,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 11:06:30,659 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 11:06:31,058 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 11:06:31,058 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-09 11:06:31,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 11:06:31 BoogieIcfgContainer [2020-10-09 11:06:31,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 11:06:31,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 11:06:31,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 11:06:31,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 11:06:31,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 11:06:29" (1/3) ... [2020-10-09 11:06:31,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dea063d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 11:06:31, skipping insertion in model container [2020-10-09 11:06:31,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:06:30" (2/3) ... [2020-10-09 11:06:31,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dea063d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 11:06:31, skipping insertion in model container [2020-10-09 11:06:31,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 11:06:31" (3/3) ... [2020-10-09 11:06:31,069 INFO L111 eAbstractionObserver]: Analyzing ICFG szymanski.i [2020-10-09 11:06:31,081 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-09 11:06:31,082 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 11:06:31,090 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-09 11:06:31,091 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 11:06:31,116 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,117 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,117 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,117 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,119 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,119 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,136 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,136 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,137 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,137 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:06:31,161 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-09 11:06:31,184 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 11:06:31,184 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 11:06:31,184 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 11:06:31,184 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 11:06:31,184 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 11:06:31,185 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 11:06:31,185 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 11:06:31,185 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 11:06:31,200 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 11:06:31,203 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 87 transitions, 196 flow [2020-10-09 11:06:31,206 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 87 transitions, 196 flow [2020-10-09 11:06:31,208 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 87 transitions, 196 flow [2020-10-09 11:06:31,258 INFO L129 PetriNetUnfolder]: 21/87 cut-off events. [2020-10-09 11:06:31,258 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-09 11:06:31,265 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 21/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 65. Up to 3 conditions per place. [2020-10-09 11:06:31,268 INFO L117 LiptonReduction]: Number of co-enabled transitions 2160 [2020-10-09 11:06:32,248 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-10-09 11:06:32,329 INFO L132 LiptonReduction]: Checked pairs total: 5431 [2020-10-09 11:06:32,330 INFO L134 LiptonReduction]: Total number of compositions: 40 [2020-10-09 11:06:32,337 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 59 transitions, 140 flow [2020-10-09 11:06:32,375 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 509 states. [2020-10-09 11:06:32,378 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states. [2020-10-09 11:06:32,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-09 11:06:32,388 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:06:32,389 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:06:32,389 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:06:32,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:06:32,397 INFO L82 PathProgramCache]: Analyzing trace with hash -223988154, now seen corresponding path program 1 times [2020-10-09 11:06:32,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:06:32,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791750059] [2020-10-09 11:06:32,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:06:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:06:32,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 11:06:32,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791750059] [2020-10-09 11:06:32,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:06:32,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 11:06:32,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857159659] [2020-10-09 11:06:32,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-09 11:06:32,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:06:32,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-09 11:06:32,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-09 11:06:32,608 INFO L87 Difference]: Start difference. First operand 509 states. Second operand 2 states. [2020-10-09 11:06:32,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:06:32,647 INFO L93 Difference]: Finished difference Result 509 states and 1466 transitions. [2020-10-09 11:06:32,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-09 11:06:32,648 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-09 11:06:32,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:06:32,669 INFO L225 Difference]: With dead ends: 509 [2020-10-09 11:06:32,670 INFO L226 Difference]: Without dead ends: 470 [2020-10-09 11:06:32,671 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-09 11:06:32,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-10-09 11:06:32,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2020-10-09 11:06:32,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-10-09 11:06:32,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 1363 transitions. [2020-10-09 11:06:32,764 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 1363 transitions. Word has length 8 [2020-10-09 11:06:32,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:06:32,765 INFO L481 AbstractCegarLoop]: Abstraction has 470 states and 1363 transitions. [2020-10-09 11:06:32,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-09 11:06:32,765 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 1363 transitions. [2020-10-09 11:06:32,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-09 11:06:32,773 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:06:32,773 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:06:32,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-09 11:06:32,774 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:06:32,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:06:32,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1417283260, now seen corresponding path program 1 times [2020-10-09 11:06:32,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:06:32,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288061517] [2020-10-09 11:06:32,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:06:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:06:32,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 11:06:32,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288061517] [2020-10-09 11:06:32,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:06:32,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 11:06:32,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957176674] [2020-10-09 11:06:32,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 11:06:32,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:06:32,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 11:06:32,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:06:32,851 INFO L87 Difference]: Start difference. First operand 470 states and 1363 transitions. Second operand 3 states. [2020-10-09 11:06:32,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:06:32,883 INFO L93 Difference]: Finished difference Result 481 states and 1359 transitions. [2020-10-09 11:06:32,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 11:06:32,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-09 11:06:32,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:06:32,888 INFO L225 Difference]: With dead ends: 481 [2020-10-09 11:06:32,888 INFO L226 Difference]: Without dead ends: 391 [2020-10-09 11:06:32,889 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:06:32,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-10-09 11:06:32,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 373. [2020-10-09 11:06:32,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-10-09 11:06:32,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 1071 transitions. [2020-10-09 11:06:32,915 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 1071 transitions. Word has length 10 [2020-10-09 11:06:32,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:06:32,916 INFO L481 AbstractCegarLoop]: Abstraction has 373 states and 1071 transitions. [2020-10-09 11:06:32,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 11:06:32,916 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 1071 transitions. [2020-10-09 11:06:32,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-09 11:06:32,918 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:06:32,918 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:06:32,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-09 11:06:32,919 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:06:32,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:06:32,919 INFO L82 PathProgramCache]: Analyzing trace with hash -2015895147, now seen corresponding path program 1 times [2020-10-09 11:06:32,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:06:32,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215271003] [2020-10-09 11:06:32,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:06:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:06:32,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 11:06:32,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215271003] [2020-10-09 11:06:32,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:06:32,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 11:06:32,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785431718] [2020-10-09 11:06:32,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 11:06:32,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:06:32,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 11:06:32,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:06:32,977 INFO L87 Difference]: Start difference. First operand 373 states and 1071 transitions. Second operand 3 states. [2020-10-09 11:06:32,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:06:32,998 INFO L93 Difference]: Finished difference Result 360 states and 1018 transitions. [2020-10-09 11:06:32,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 11:06:32,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-09 11:06:32,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:06:33,001 INFO L225 Difference]: With dead ends: 360 [2020-10-09 11:06:33,002 INFO L226 Difference]: Without dead ends: 264 [2020-10-09 11:06:33,002 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:06:33,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-09 11:06:33,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2020-10-09 11:06:33,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-10-09 11:06:33,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 749 transitions. [2020-10-09 11:06:33,018 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 749 transitions. Word has length 12 [2020-10-09 11:06:33,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:06:33,019 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 749 transitions. [2020-10-09 11:06:33,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 11:06:33,019 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 749 transitions. [2020-10-09 11:06:33,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-09 11:06:33,022 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:06:33,022 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:06:33,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-09 11:06:33,022 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:06:33,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:06:33,023 INFO L82 PathProgramCache]: Analyzing trace with hash 573136511, now seen corresponding path program 1 times [2020-10-09 11:06:33,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:06:33,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838027199] [2020-10-09 11:06:33,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:06:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:06:33,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 11:06:33,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838027199] [2020-10-09 11:06:33,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:06:33,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 11:06:33,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251023585] [2020-10-09 11:06:33,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 11:06:33,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:06:33,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 11:06:33,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:06:33,070 INFO L87 Difference]: Start difference. First operand 264 states and 749 transitions. Second operand 3 states. [2020-10-09 11:06:33,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:06:33,114 INFO L93 Difference]: Finished difference Result 292 states and 809 transitions. [2020-10-09 11:06:33,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 11:06:33,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-09 11:06:33,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:06:33,117 INFO L225 Difference]: With dead ends: 292 [2020-10-09 11:06:33,117 INFO L226 Difference]: Without dead ends: 280 [2020-10-09 11:06:33,117 INFO L673 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 [2020-10-09 11:06:33,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-09 11:06:33,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2020-10-09 11:06:33,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-09 11:06:33,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 773 transitions. [2020-10-09 11:06:33,128 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 773 transitions. Word has length 19 [2020-10-09 11:06:33,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:06:33,129 INFO L481 AbstractCegarLoop]: Abstraction has 280 states and 773 transitions. [2020-10-09 11:06:33,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 11:06:33,129 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 773 transitions. [2020-10-09 11:06:33,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-09 11:06:33,132 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:06:33,132 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:06:33,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-09 11:06:33,132 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:06:33,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:06:33,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1551241601, now seen corresponding path program 2 times [2020-10-09 11:06:33,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:06:33,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653588884] [2020-10-09 11:06:33,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:06:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:06:33,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 11:06:33,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653588884] [2020-10-09 11:06:33,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:06:33,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 11:06:33,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648557132] [2020-10-09 11:06:33,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 11:06:33,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:06:33,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 11:06:33,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:06:33,172 INFO L87 Difference]: Start difference. First operand 280 states and 773 transitions. Second operand 3 states. [2020-10-09 11:06:33,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:06:33,210 INFO L93 Difference]: Finished difference Result 312 states and 828 transitions. [2020-10-09 11:06:33,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 11:06:33,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-09 11:06:33,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:06:33,213 INFO L225 Difference]: With dead ends: 312 [2020-10-09 11:06:33,213 INFO L226 Difference]: Without dead ends: 230 [2020-10-09 11:06:33,213 INFO L673 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 [2020-10-09 11:06:33,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-09 11:06:33,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2020-10-09 11:06:33,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-09 11:06:33,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 555 transitions. [2020-10-09 11:06:33,221 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 555 transitions. Word has length 19 [2020-10-09 11:06:33,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:06:33,221 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 555 transitions. [2020-10-09 11:06:33,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 11:06:33,222 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 555 transitions. [2020-10-09 11:06:33,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-09 11:06:33,223 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:06:33,223 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:06:33,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-09 11:06:33,223 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:06:33,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:06:33,224 INFO L82 PathProgramCache]: Analyzing trace with hash 926221059, now seen corresponding path program 3 times [2020-10-09 11:06:33,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:06:33,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247709885] [2020-10-09 11:06:33,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:06:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:06:33,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 11:06:33,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247709885] [2020-10-09 11:06:33,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:06:33,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 11:06:33,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141387618] [2020-10-09 11:06:33,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 11:06:33,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:06:33,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 11:06:33,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:06:33,259 INFO L87 Difference]: Start difference. First operand 226 states and 555 transitions. Second operand 3 states. [2020-10-09 11:06:33,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:06:33,292 INFO L93 Difference]: Finished difference Result 210 states and 499 transitions. [2020-10-09 11:06:33,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 11:06:33,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-09 11:06:33,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:06:33,294 INFO L225 Difference]: With dead ends: 210 [2020-10-09 11:06:33,294 INFO L226 Difference]: Without dead ends: 210 [2020-10-09 11:06:33,295 INFO L673 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 [2020-10-09 11:06:33,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-10-09 11:06:33,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2020-10-09 11:06:33,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-10-09 11:06:33,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 499 transitions. [2020-10-09 11:06:33,301 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 499 transitions. Word has length 19 [2020-10-09 11:06:33,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:06:33,302 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 499 transitions. [2020-10-09 11:06:33,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 11:06:33,302 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 499 transitions. [2020-10-09 11:06:33,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-09 11:06:33,303 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:06:33,303 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:06:33,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-09 11:06:33,303 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:06:33,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:06:33,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1185214475, now seen corresponding path program 4 times [2020-10-09 11:06:33,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:06:33,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048885682] [2020-10-09 11:06:33,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:06:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:06:33,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 11:06:33,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048885682] [2020-10-09 11:06:33,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:06:33,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 11:06:33,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058365643] [2020-10-09 11:06:33,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 11:06:33,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:06:33,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 11:06:33,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:06:33,338 INFO L87 Difference]: Start difference. First operand 210 states and 499 transitions. Second operand 3 states. [2020-10-09 11:06:33,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:06:33,371 INFO L93 Difference]: Finished difference Result 160 states and 390 transitions. [2020-10-09 11:06:33,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 11:06:33,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-09 11:06:33,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:06:33,373 INFO L225 Difference]: With dead ends: 160 [2020-10-09 11:06:33,373 INFO L226 Difference]: Without dead ends: 0 [2020-10-09 11:06:33,373 INFO L673 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 [2020-10-09 11:06:33,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-09 11:06:33,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-09 11:06:33,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-09 11:06:33,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-09 11:06:33,374 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-09 11:06:33,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:06:33,375 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-09 11:06:33,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 11:06:33,376 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-09 11:06:33,376 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-09 11:06:33,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-09 11:06:33,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 11:06:33 BasicIcfg [2020-10-09 11:06:33,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 11:06:33,384 INFO L168 Benchmark]: Toolchain (without parser) took 3607.92 ms. Allocated memory was 252.2 MB in the beginning and 360.2 MB in the end (delta: 108.0 MB). Free memory was 208.7 MB in the beginning and 173.7 MB in the end (delta: 35.0 MB). Peak memory consumption was 143.0 MB. Max. memory is 14.2 GB. [2020-10-09 11:06:33,390 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 11:06:33,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.95 ms. Allocated memory was 252.2 MB in the beginning and 317.2 MB in the end (delta: 65.0 MB). Free memory was 208.7 MB in the beginning and 273.0 MB in the end (delta: -64.4 MB). Peak memory consumption was 29.5 MB. Max. memory is 14.2 GB. [2020-10-09 11:06:33,393 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.34 ms. Allocated memory is still 317.2 MB. Free memory was 273.0 MB in the beginning and 270.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 11:06:33,393 INFO L168 Benchmark]: Boogie Preprocessor took 31.92 ms. Allocated memory is still 317.2 MB. Free memory is still 270.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 11:06:33,394 INFO L168 Benchmark]: RCFGBuilder took 486.47 ms. Allocated memory is still 317.2 MB. Free memory was 270.5 MB in the beginning and 246.2 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-09 11:06:33,396 INFO L168 Benchmark]: TraceAbstraction took 2319.64 ms. Allocated memory was 317.2 MB in the beginning and 360.2 MB in the end (delta: 43.0 MB). Free memory was 246.2 MB in the beginning and 173.7 MB in the end (delta: 72.5 MB). Peak memory consumption was 115.5 MB. Max. memory is 14.2 GB. [2020-10-09 11:06:33,408 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 706.95 ms. Allocated memory was 252.2 MB in the beginning and 317.2 MB in the end (delta: 65.0 MB). Free memory was 208.7 MB in the beginning and 273.0 MB in the end (delta: -64.4 MB). Peak memory consumption was 29.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 56.34 ms. Allocated memory is still 317.2 MB. Free memory was 273.0 MB in the beginning and 270.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 31.92 ms. Allocated memory is still 317.2 MB. Free memory is still 270.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 486.47 ms. Allocated memory is still 317.2 MB. Free memory was 270.5 MB in the beginning and 246.2 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2319.64 ms. Allocated memory was 317.2 MB in the beginning and 360.2 MB in the end (delta: 43.0 MB). Free memory was 246.2 MB in the beginning and 173.7 MB in the end (delta: 72.5 MB). Peak memory consumption was 115.5 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 968 VarBasedMoverChecksPositive, 93 VarBasedMoverChecksNegative, 63 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 343 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 72 PlacesBefore, 46 PlacesAfterwards, 87 TransitionsBefore, 59 TransitionsAfterwards, 2160 CoEnabledTransitionPairs, 4 FixpointIterations, 16 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 40 TotalNumberOfCompositions, 5431 MoverChecksTotal - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 66 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 367 SDtfs, 133 SDslu, 141 SDs, 0 SdLazy, 82 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=509occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 2127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...