/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-atomic/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:41:46,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:41:46,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:41:46,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:41:46,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:41:46,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:41:46,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:41:46,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:41:46,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:41:46,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:41:46,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:41:46,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:41:46,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:41:46,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:41:46,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:41:46,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:41:46,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:41:46,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:41:46,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:41:46,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:41:46,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:41:46,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:41:46,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:41:46,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:41:46,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:41:46,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:41:46,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:41:46,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:41:46,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:41:46,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:41:46,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:41:46,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:41:46,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:41:46,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:41:46,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:41:46,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:41:46,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:41:46,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:41:46,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:41:46,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:41:46,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:41:46,124 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 11:41:46,175 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:41:46,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:41:46,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:41:46,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:41:46,178 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:41:46,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:41:46,179 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:41:46,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:41:46,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:41:46,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:41:46,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:41:46,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:41:46,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:41:46,181 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:41:46,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:41:46,182 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:41:46,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:41:46,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:41:46,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:41:46,182 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:41:46,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:41:46,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:41:46,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:41:46,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 11:41:46,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:41:46,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:41:46,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:41:46,184 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 11:41:46,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:41:46,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:41:46,538 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:41:46,542 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:41:46,544 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:41:46,544 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:41:46,545 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2020-10-16 11:41:46,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e94a4e8f8/190e98eb92af4ec3bca7d8ae6f66c927/FLAGdb0ca7c8e [2020-10-16 11:41:47,126 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:41:47,128 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-atomic/peterson.i [2020-10-16 11:41:47,142 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e94a4e8f8/190e98eb92af4ec3bca7d8ae6f66c927/FLAGdb0ca7c8e [2020-10-16 11:41:47,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e94a4e8f8/190e98eb92af4ec3bca7d8ae6f66c927 [2020-10-16 11:41:47,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:41:47,432 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:41:47,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:41:47,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:41:47,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:41:47,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:41:47" (1/1) ... [2020-10-16 11:41:47,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9a274ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:47, skipping insertion in model container [2020-10-16 11:41:47,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:41:47" (1/1) ... [2020-10-16 11:41:47,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:41:47,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:41:47,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:41:47,918 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:41:48,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:41:48,071 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:41:48,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:48 WrapperNode [2020-10-16 11:41:48,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:41:48,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:41:48,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:41:48,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:41:48,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:48" (1/1) ... [2020-10-16 11:41:48,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:48" (1/1) ... [2020-10-16 11:41:48,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:41:48,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:41:48,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:41:48,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:41:48,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:48" (1/1) ... [2020-10-16 11:41:48,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:48" (1/1) ... [2020-10-16 11:41:48,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:48" (1/1) ... [2020-10-16 11:41:48,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:48" (1/1) ... [2020-10-16 11:41:48,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:48" (1/1) ... [2020-10-16 11:41:48,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:48" (1/1) ... [2020-10-16 11:41:48,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:48" (1/1) ... [2020-10-16 11:41:48,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:41:48,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:41:48,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:41:48,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:41:48,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 11:41:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 11:41:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-16 11:41:48,223 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-16 11:41:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-16 11:41:48,224 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-16 11:41:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:41:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:41:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:41:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:41:48,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:41:48,226 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:41:48,537 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:41:48,537 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-16 11:41:48,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:41:48 BoogieIcfgContainer [2020-10-16 11:41:48,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:41:48,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:41:48,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:41:48,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:41:48,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:41:47" (1/3) ... [2020-10-16 11:41:48,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433f21cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:41:48, skipping insertion in model container [2020-10-16 11:41:48,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:48" (2/3) ... [2020-10-16 11:41:48,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433f21cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:41:48, skipping insertion in model container [2020-10-16 11:41:48,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:41:48" (3/3) ... [2020-10-16 11:41:48,550 INFO L111 eAbstractionObserver]: Analyzing ICFG peterson.i [2020-10-16 11:41:48,568 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:41:48,571 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:41:48,585 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 11:41:48,587 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:41:48,616 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,617 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,617 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,617 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,619 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,619 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,627 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,627 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,627 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,633 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,633 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,633 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,634 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:48,646 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 11:41:48,658 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 11:41:48,677 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:41:48,677 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:41:48,678 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 11:41:48,678 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:41:48,678 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:41:48,678 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:41:48,678 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:41:48,679 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:41:48,691 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 11:41:48,692 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 62 transitions, 146 flow [2020-10-16 11:41:48,695 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 62 transitions, 146 flow [2020-10-16 11:41:48,697 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 62 transitions, 146 flow [2020-10-16 11:41:48,738 INFO L129 PetriNetUnfolder]: 7/62 cut-off events. [2020-10-16 11:41:48,739 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 11:41:48,744 INFO L80 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 62 events. 7/62 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 39. Up to 3 conditions per place. [2020-10-16 11:41:48,748 INFO L117 LiptonReduction]: Number of co-enabled transitions 756 [2020-10-16 11:41:49,580 INFO L132 LiptonReduction]: Checked pairs total: 2556 [2020-10-16 11:41:49,581 INFO L134 LiptonReduction]: Total number of compositions: 33 [2020-10-16 11:41:49,589 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 35 transitions, 92 flow [2020-10-16 11:41:49,612 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 216 states. [2020-10-16 11:41:49,615 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-10-16 11:41:49,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 11:41:49,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:49,623 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 11:41:49,623 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:49,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:49,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1408592637, now seen corresponding path program 1 times [2020-10-16 11:41:49,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:49,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514927917] [2020-10-16 11:41:49,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:49,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:49,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514927917] [2020-10-16 11:41:49,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:49,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:41:49,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275347680] [2020-10-16 11:41:49,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 11:41:49,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:49,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 11:41:49,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 11:41:49,838 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 2 states. [2020-10-16 11:41:49,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:49,870 INFO L93 Difference]: Finished difference Result 216 states and 500 transitions. [2020-10-16 11:41:49,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 11:41:49,872 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-10-16 11:41:49,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:49,887 INFO L225 Difference]: With dead ends: 216 [2020-10-16 11:41:49,887 INFO L226 Difference]: Without dead ends: 186 [2020-10-16 11:41:49,888 INFO L677 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 [2020-10-16 11:41:49,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-10-16 11:41:49,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2020-10-16 11:41:49,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-16 11:41:49,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 436 transitions. [2020-10-16 11:41:49,953 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 436 transitions. Word has length 6 [2020-10-16 11:41:49,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:49,954 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 436 transitions. [2020-10-16 11:41:49,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 11:41:49,954 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 436 transitions. [2020-10-16 11:41:49,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 11:41:49,955 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:49,955 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:49,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:41:49,956 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:49,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:49,956 INFO L82 PathProgramCache]: Analyzing trace with hash -716726219, now seen corresponding path program 1 times [2020-10-16 11:41:49,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:49,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383505397] [2020-10-16 11:41:49,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:50,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:50,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383505397] [2020-10-16 11:41:50,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:50,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:41:50,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916903158] [2020-10-16 11:41:50,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:41:50,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:50,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:41:50,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:50,020 INFO L87 Difference]: Start difference. First operand 186 states and 436 transitions. Second operand 3 states. [2020-10-16 11:41:50,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:50,057 INFO L93 Difference]: Finished difference Result 203 states and 449 transitions. [2020-10-16 11:41:50,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:41:50,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-16 11:41:50,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:50,059 INFO L225 Difference]: With dead ends: 203 [2020-10-16 11:41:50,060 INFO L226 Difference]: Without dead ends: 158 [2020-10-16 11:41:50,060 INFO L677 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 [2020-10-16 11:41:50,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-16 11:41:50,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 144. [2020-10-16 11:41:50,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-16 11:41:50,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 325 transitions. [2020-10-16 11:41:50,079 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 325 transitions. Word has length 7 [2020-10-16 11:41:50,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:50,080 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 325 transitions. [2020-10-16 11:41:50,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:41:50,080 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 325 transitions. [2020-10-16 11:41:50,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:41:50,081 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:50,081 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:50,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:41:50,082 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:50,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:50,082 INFO L82 PathProgramCache]: Analyzing trace with hash 188907911, now seen corresponding path program 1 times [2020-10-16 11:41:50,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:50,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595316072] [2020-10-16 11:41:50,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:50,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:50,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595316072] [2020-10-16 11:41:50,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:50,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:41:50,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294638723] [2020-10-16 11:41:50,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:41:50,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:50,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:41:50,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:50,128 INFO L87 Difference]: Start difference. First operand 144 states and 325 transitions. Second operand 3 states. [2020-10-16 11:41:50,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:50,148 INFO L93 Difference]: Finished difference Result 135 states and 290 transitions. [2020-10-16 11:41:50,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:41:50,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 11:41:50,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:50,150 INFO L225 Difference]: With dead ends: 135 [2020-10-16 11:41:50,150 INFO L226 Difference]: Without dead ends: 96 [2020-10-16 11:41:50,151 INFO L677 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 [2020-10-16 11:41:50,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-16 11:41:50,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2020-10-16 11:41:50,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-16 11:41:50,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 204 transitions. [2020-10-16 11:41:50,159 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 204 transitions. Word has length 9 [2020-10-16 11:41:50,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:50,160 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 204 transitions. [2020-10-16 11:41:50,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:41:50,160 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 204 transitions. [2020-10-16 11:41:50,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:41:50,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:50,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:50,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:41:50,162 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:50,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:50,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1905704594, now seen corresponding path program 1 times [2020-10-16 11:41:50,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:50,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182988657] [2020-10-16 11:41:50,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:50,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:50,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182988657] [2020-10-16 11:41:50,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:50,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:41:50,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650184001] [2020-10-16 11:41:50,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:41:50,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:50,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:41:50,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:41:50,214 INFO L87 Difference]: Start difference. First operand 96 states and 204 transitions. Second operand 4 states. [2020-10-16 11:41:50,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:50,241 INFO L93 Difference]: Finished difference Result 106 states and 227 transitions. [2020-10-16 11:41:50,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:41:50,241 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 11:41:50,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:50,243 INFO L225 Difference]: With dead ends: 106 [2020-10-16 11:41:50,243 INFO L226 Difference]: Without dead ends: 82 [2020-10-16 11:41:50,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:41:50,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-16 11:41:50,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-16 11:41:50,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-16 11:41:50,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 160 transitions. [2020-10-16 11:41:50,250 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 160 transitions. Word has length 13 [2020-10-16 11:41:50,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:50,251 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 160 transitions. [2020-10-16 11:41:50,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:41:50,251 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 160 transitions. [2020-10-16 11:41:50,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:41:50,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:50,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:50,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:41:50,253 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:50,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:50,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1601567116, now seen corresponding path program 2 times [2020-10-16 11:41:50,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:50,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969309523] [2020-10-16 11:41:50,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:50,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:50,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969309523] [2020-10-16 11:41:50,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:50,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:41:50,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643377179] [2020-10-16 11:41:50,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:41:50,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:50,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:41:50,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:41:50,295 INFO L87 Difference]: Start difference. First operand 82 states and 160 transitions. Second operand 4 states. [2020-10-16 11:41:50,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:50,308 INFO L93 Difference]: Finished difference Result 36 states and 77 transitions. [2020-10-16 11:41:50,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:41:50,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 11:41:50,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:50,310 INFO L225 Difference]: With dead ends: 36 [2020-10-16 11:41:50,310 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:41:50,310 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:41:50,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:41:50,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:41:50,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:41:50,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:41:50,312 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-16 11:41:50,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:50,312 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:41:50,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:41:50,312 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:41:50,312 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:41:50,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:41:50,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:41:50 BasicIcfg [2020-10-16 11:41:50,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:41:50,319 INFO L168 Benchmark]: Toolchain (without parser) took 2887.45 ms. Allocated memory was 140.0 MB in the beginning and 235.9 MB in the end (delta: 95.9 MB). Free memory was 102.0 MB in the beginning and 99.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 98.5 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:50,320 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-16 11:41:50,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.72 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 102.0 MB in the beginning and 163.3 MB in the end (delta: -61.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:50,322 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.17 ms. Allocated memory is still 201.9 MB. Free memory was 163.3 MB in the beginning and 160.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:50,323 INFO L168 Benchmark]: Boogie Preprocessor took 30.56 ms. Allocated memory is still 201.9 MB. Free memory was 160.1 MB in the beginning and 159.1 MB in the end (delta: 959.3 kB). Peak memory consumption was 959.3 kB. Max. memory is 7.1 GB. [2020-10-16 11:41:50,324 INFO L168 Benchmark]: RCFGBuilder took 389.07 ms. Allocated memory is still 201.9 MB. Free memory was 159.1 MB in the beginning and 139.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:50,325 INFO L168 Benchmark]: TraceAbstraction took 1774.87 ms. Allocated memory was 201.9 MB in the beginning and 235.9 MB in the end (delta: 34.1 MB). Free memory was 138.2 MB in the beginning and 99.5 MB in the end (delta: 38.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:50,329 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 639.72 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 102.0 MB in the beginning and 163.3 MB in the end (delta: -61.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.17 ms. Allocated memory is still 201.9 MB. Free memory was 163.3 MB in the beginning and 160.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.56 ms. Allocated memory is still 201.9 MB. Free memory was 160.1 MB in the beginning and 159.1 MB in the end (delta: 959.3 kB). Peak memory consumption was 959.3 kB. Max. memory is 7.1 GB. * RCFGBuilder took 389.07 ms. Allocated memory is still 201.9 MB. Free memory was 159.1 MB in the beginning and 139.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1774.87 ms. Allocated memory was 201.9 MB in the beginning and 235.9 MB in the end (delta: 34.1 MB). Free memory was 138.2 MB in the beginning and 99.5 MB in the end (delta: 38.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 388 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 133 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.8s, 61 PlacesBefore, 35 PlacesAfterwards, 62 TransitionsBefore, 35 TransitionsAfterwards, 756 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 33 TotalNumberOfCompositions, 2556 MoverChecksTotal - PositiveResult [Line: 690]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 681]: 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, 55 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 141 SDtfs, 61 SDslu, 60 SDs, 0 SdLazy, 35 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred 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, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 801 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...