/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/stateful01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:38:38,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:38:38,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:38:38,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:38:38,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:38:38,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:38:38,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:38:38,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:38:38,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:38:38,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:38:38,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:38:38,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:38:38,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:38:38,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:38:38,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:38:38,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:38:38,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:38:38,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:38:38,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:38:38,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:38:38,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:38:38,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:38:38,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:38:38,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:38:38,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:38:38,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:38:38,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:38:38,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:38:38,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:38:38,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:38:38,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:38:38,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:38:38,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:38:38,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:38:38,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:38:38,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:38:38,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:38:38,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:38:38,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:38:38,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:38:38,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:38:38,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 22:38:38,248 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:38:38,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:38:38,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:38:38,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:38:38,251 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:38:38,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:38:38,251 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:38:38,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:38:38,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:38:38,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:38:38,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:38:38,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:38:38,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:38:38,254 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:38:38,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:38:38,254 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:38:38,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:38:38,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:38:38,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:38:38,255 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:38:38,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:38:38,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:38:38,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:38:38,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 22:38:38,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:38:38,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:38:38,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:38:38,257 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 22:38:38,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:38:38,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:38:38,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:38:38,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:38:38,607 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:38:38,609 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:38:38,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2020-10-21 22:38:38,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ee6e911b/f6ca2a072eea43058dadac4df37fa8d5/FLAGa1a68e19b [2020-10-21 22:38:39,156 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:38:39,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2020-10-21 22:38:39,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ee6e911b/f6ca2a072eea43058dadac4df37fa8d5/FLAGa1a68e19b [2020-10-21 22:38:39,472 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ee6e911b/f6ca2a072eea43058dadac4df37fa8d5 [2020-10-21 22:38:39,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:38:39,487 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:38:39,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:38:39,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:38:39,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:38:39,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:38:39" (1/1) ... [2020-10-21 22:38:39,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e0ce657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:39, skipping insertion in model container [2020-10-21 22:38:39,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:38:39" (1/1) ... [2020-10-21 22:38:39,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:38:39,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:38:40,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:38:40,025 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:38:40,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:38:40,162 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:38:40,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:40 WrapperNode [2020-10-21 22:38:40,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:38:40,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:38:40,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:38:40,164 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:38:40,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:40" (1/1) ... [2020-10-21 22:38:40,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:40" (1/1) ... [2020-10-21 22:38:40,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:38:40,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:38:40,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:38:40,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:38:40,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:40" (1/1) ... [2020-10-21 22:38:40,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:40" (1/1) ... [2020-10-21 22:38:40,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:40" (1/1) ... [2020-10-21 22:38:40,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:40" (1/1) ... [2020-10-21 22:38:40,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:40" (1/1) ... [2020-10-21 22:38:40,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:40" (1/1) ... [2020-10-21 22:38:40,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:40" (1/1) ... [2020-10-21 22:38:40,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:38:40,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:38:40,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:38:40,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:38:40,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:40" (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 [2020-10-21 22:38:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 22:38:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-21 22:38:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-21 22:38:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-21 22:38:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-21 22:38:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:38:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 22:38:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:38:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:38:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:38:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:38:40,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:38:40,321 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:38:40,741 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:38:40,741 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-21 22:38:40,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:38:40 BoogieIcfgContainer [2020-10-21 22:38:40,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:38:40,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:38:40,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:38:40,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:38:40,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:38:39" (1/3) ... [2020-10-21 22:38:40,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5751561b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:38:40, skipping insertion in model container [2020-10-21 22:38:40,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:40" (2/3) ... [2020-10-21 22:38:40,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5751561b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:38:40, skipping insertion in model container [2020-10-21 22:38:40,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:38:40" (3/3) ... [2020-10-21 22:38:40,758 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2020-10-21 22:38:40,768 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:38:40,768 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:38:40,776 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:38:40,777 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:38:40,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,807 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,807 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,808 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,808 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,812 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,812 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,815 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,815 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,816 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,816 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,816 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,817 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,817 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,818 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,818 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,818 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,824 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,824 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,824 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,825 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,825 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,825 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,825 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,826 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,834 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,834 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,834 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,835 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,835 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,835 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:40,852 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 22:38:40,863 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-21 22:38:40,880 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:38:40,880 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:38:40,880 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 22:38:40,880 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:38:40,880 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:38:40,881 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:38:40,881 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:38:40,881 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:38:40,894 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 22:38:40,895 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 87 transitions, 196 flow [2020-10-21 22:38:40,898 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 87 transitions, 196 flow [2020-10-21 22:38:40,900 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 90 places, 87 transitions, 196 flow [2020-10-21 22:38:40,952 INFO L129 PetriNetUnfolder]: 3/87 cut-off events. [2020-10-21 22:38:40,952 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-21 22:38:40,956 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 3/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 32. Up to 3 conditions per place. [2020-10-21 22:38:40,959 INFO L116 LiptonReduction]: Number of co-enabled transitions 680 [2020-10-21 22:38:42,144 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-21 22:38:42,681 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-21 22:38:43,397 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 132 [2020-10-21 22:38:43,683 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-21 22:38:43,694 INFO L131 LiptonReduction]: Checked pairs total: 3154 [2020-10-21 22:38:43,694 INFO L133 LiptonReduction]: Total number of compositions: 65 [2020-10-21 22:38:43,701 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 30 transitions, 82 flow [2020-10-21 22:38:43,719 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2020-10-21 22:38:43,722 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-10-21 22:38:43,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-21 22:38:43,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:38:43,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:38:43,735 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:38:43,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:38:43,739 INFO L82 PathProgramCache]: Analyzing trace with hash -657566232, now seen corresponding path program 1 times [2020-10-21 22:38:43,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:38:43,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225265854] [2020-10-21 22:38:43,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:38:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:38:43,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:38:43,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225265854] [2020-10-21 22:38:43,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:38:43,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:38:43,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689040345] [2020-10-21 22:38:44,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:38:44,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:38:44,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:38:44,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:38:44,020 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2020-10-21 22:38:44,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:38:44,075 INFO L93 Difference]: Finished difference Result 150 states and 254 transitions. [2020-10-21 22:38:44,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:38:44,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-21 22:38:44,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:38:44,089 INFO L225 Difference]: With dead ends: 150 [2020-10-21 22:38:44,089 INFO L226 Difference]: Without dead ends: 149 [2020-10-21 22:38:44,090 INFO L677 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 [2020-10-21 22:38:44,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-21 22:38:44,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2020-10-21 22:38:44,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-21 22:38:44,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 253 transitions. [2020-10-21 22:38:44,138 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 253 transitions. Word has length 25 [2020-10-21 22:38:44,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:38:44,138 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 253 transitions. [2020-10-21 22:38:44,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:38:44,139 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 253 transitions. [2020-10-21 22:38:44,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-21 22:38:44,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:38:44,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:38:44,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:38:44,142 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:38:44,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:38:44,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1255226036, now seen corresponding path program 2 times [2020-10-21 22:38:44,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:38:44,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473774923] [2020-10-21 22:38:44,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:38:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:38:44,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:38:44,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473774923] [2020-10-21 22:38:44,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:38:44,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:38:44,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138226904] [2020-10-21 22:38:44,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:38:44,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:38:44,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:38:44,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:38:44,324 INFO L87 Difference]: Start difference. First operand 149 states and 253 transitions. Second operand 6 states. [2020-10-21 22:38:44,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:38:44,379 INFO L93 Difference]: Finished difference Result 206 states and 346 transitions. [2020-10-21 22:38:44,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:38:44,380 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-10-21 22:38:44,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:38:44,381 INFO L225 Difference]: With dead ends: 206 [2020-10-21 22:38:44,382 INFO L226 Difference]: Without dead ends: 100 [2020-10-21 22:38:44,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:38:44,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-21 22:38:44,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-10-21 22:38:44,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-21 22:38:44,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 163 transitions. [2020-10-21 22:38:44,392 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 163 transitions. Word has length 25 [2020-10-21 22:38:44,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:38:44,392 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 163 transitions. [2020-10-21 22:38:44,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:38:44,393 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 163 transitions. [2020-10-21 22:38:44,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-21 22:38:44,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:38:44,394 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:38:44,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:38:44,395 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:38:44,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:38:44,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1830117440, now seen corresponding path program 3 times [2020-10-21 22:38:44,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:38:44,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104152530] [2020-10-21 22:38:44,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:38:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:38:44,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:38:44,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104152530] [2020-10-21 22:38:44,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:38:44,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:38:44,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833099153] [2020-10-21 22:38:44,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:38:44,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:38:44,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:38:44,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:38:44,544 INFO L87 Difference]: Start difference. First operand 100 states and 163 transitions. Second operand 6 states. [2020-10-21 22:38:44,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:38:44,578 INFO L93 Difference]: Finished difference Result 99 states and 162 transitions. [2020-10-21 22:38:44,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:38:44,579 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-10-21 22:38:44,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:38:44,580 INFO L225 Difference]: With dead ends: 99 [2020-10-21 22:38:44,580 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:38:44,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:38:44,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:38:44,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:38:44,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:38:44,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:38:44,581 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-10-21 22:38:44,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:38:44,582 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:38:44,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:38:44,582 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:38:44,582 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:38:44,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:38:44,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:38:44 BasicIcfg [2020-10-21 22:38:44,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:38:44,588 INFO L168 Benchmark]: Toolchain (without parser) took 5105.84 ms. Allocated memory was 139.5 MB in the beginning and 248.0 MB in the end (delta: 108.5 MB). Free memory was 100.0 MB in the beginning and 102.4 MB in the end (delta: -2.3 MB). Peak memory consumption was 106.2 MB. Max. memory is 7.1 GB. [2020-10-21 22:38:44,589 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-21 22:38:44,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.19 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 99.0 MB in the beginning and 157.9 MB in the end (delta: -58.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:38:44,591 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.65 ms. Allocated memory is still 200.8 MB. Free memory was 157.9 MB in the beginning and 155.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-21 22:38:44,592 INFO L168 Benchmark]: Boogie Preprocessor took 27.30 ms. Allocated memory is still 200.8 MB. Free memory was 155.2 MB in the beginning and 153.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-21 22:38:44,592 INFO L168 Benchmark]: RCFGBuilder took 497.14 ms. Allocated memory is still 200.8 MB. Free memory was 153.9 MB in the beginning and 128.3 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-10-21 22:38:44,593 INFO L168 Benchmark]: TraceAbstraction took 3836.80 ms. Allocated memory was 200.8 MB in the beginning and 248.0 MB in the end (delta: 47.2 MB). Free memory was 127.6 MB in the beginning and 102.4 MB in the end (delta: 25.2 MB). Peak memory consumption was 72.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:38:44,598 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 675.19 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 99.0 MB in the beginning and 157.9 MB in the end (delta: -58.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.65 ms. Allocated memory is still 200.8 MB. Free memory was 157.9 MB in the beginning and 155.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.30 ms. Allocated memory is still 200.8 MB. Free memory was 155.2 MB in the beginning and 153.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 497.14 ms. Allocated memory is still 200.8 MB. Free memory was 153.9 MB in the beginning and 128.3 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3836.80 ms. Allocated memory was 200.8 MB in the beginning and 248.0 MB in the end (delta: 47.2 MB). Free memory was 127.6 MB in the beginning and 102.4 MB in the end (delta: 25.2 MB). Peak memory consumption was 72.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 331 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 95 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.7s, 90 PlacesBefore, 35 PlacesAfterwards, 87 TransitionsBefore, 30 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 6 FixpointIterations, 41 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 65 TotalNumberOfCompositions, 3154 MoverChecksTotal - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 112 SDtfs, 43 SDslu, 254 SDs, 0 SdLazy, 48 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 9312 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...