/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 13:12:50,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 13:12:50,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 13:12:50,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 13:12:50,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 13:12:50,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 13:12:50,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 13:12:50,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 13:12:50,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 13:12:50,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 13:12:50,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 13:12:50,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 13:12:50,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 13:12:50,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 13:12:50,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 13:12:50,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 13:12:50,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 13:12:50,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 13:12:50,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 13:12:50,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 13:12:50,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 13:12:50,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 13:12:50,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 13:12:50,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 13:12:50,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 13:12:50,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 13:12:50,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 13:12:50,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 13:12:50,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 13:12:50,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 13:12:50,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 13:12:50,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 13:12:50,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 13:12:50,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 13:12:50,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 13:12:50,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 13:12:50,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 13:12:50,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 13:12:50,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 13:12:50,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 13:12:50,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 13:12:50,816 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-11 13:12:50,857 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 13:12:50,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 13:12:50,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 13:12:50,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 13:12:50,859 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 13:12:50,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 13:12:50,860 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 13:12:50,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 13:12:50,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 13:12:50,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 13:12:50,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 13:12:50,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 13:12:50,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 13:12:50,863 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 13:12:50,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 13:12:50,863 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 13:12:50,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 13:12:50,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 13:12:50,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 13:12:50,864 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 13:12:50,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 13:12:50,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 13:12:50,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 13:12:50,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 13:12:50,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 13:12:50,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 13:12:50,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 13:12:50,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 13:12:50,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 13:12:50,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 13:12:51,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 13:12:51,183 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 13:12:51,187 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 13:12:51,188 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 13:12:51,189 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 13:12:51,190 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2020-10-11 13:12:51,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee17287e5/d4ee657fe886445680ef00f702cc5565/FLAGe5024b5f1 [2020-10-11 13:12:51,804 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 13:12:51,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2020-10-11 13:12:51,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee17287e5/d4ee657fe886445680ef00f702cc5565/FLAGe5024b5f1 [2020-10-11 13:12:52,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee17287e5/d4ee657fe886445680ef00f702cc5565 [2020-10-11 13:12:52,097 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 13:12:52,099 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 13:12:52,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 13:12:52,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 13:12:52,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 13:12:52,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:12:52" (1/1) ... [2020-10-11 13:12:52,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6330fec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:12:52, skipping insertion in model container [2020-10-11 13:12:52,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:12:52" (1/1) ... [2020-10-11 13:12:52,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 13:12:52,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 13:12:52,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 13:12:52,754 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 13:12:52,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 13:12:52,978 INFO L208 MainTranslator]: Completed translation [2020-10-11 13:12:52,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:12:52 WrapperNode [2020-10-11 13:12:52,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 13:12:52,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 13:12:52,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 13:12:52,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 13:12:52,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:12:52" (1/1) ... [2020-10-11 13:12:53,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:12:52" (1/1) ... [2020-10-11 13:12:53,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 13:12:53,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 13:12:53,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 13:12:53,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 13:12:53,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:12:52" (1/1) ... [2020-10-11 13:12:53,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:12:52" (1/1) ... [2020-10-11 13:12:53,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:12:52" (1/1) ... [2020-10-11 13:12:53,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:12:52" (1/1) ... [2020-10-11 13:12:53,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:12:52" (1/1) ... [2020-10-11 13:12:53,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:12:52" (1/1) ... [2020-10-11 13:12:53,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:12:52" (1/1) ... [2020-10-11 13:12:53,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 13:12:53,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 13:12:53,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 13:12:53,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 13:12:53,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:12:52" (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 [2020-10-11 13:12:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 13:12:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 13:12:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-11 13:12:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-11 13:12:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-11 13:12:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-11 13:12:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-11 13:12:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 13:12:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-11 13:12:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-11 13:12:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 13:12:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 13:12:53,162 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 13:12:53,572 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 13:12:53,572 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-11 13:12:53,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:12:53 BoogieIcfgContainer [2020-10-11 13:12:53,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 13:12:53,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 13:12:53,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 13:12:53,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 13:12:53,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 01:12:52" (1/3) ... [2020-10-11 13:12:53,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2b6b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:12:53, skipping insertion in model container [2020-10-11 13:12:53,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:12:52" (2/3) ... [2020-10-11 13:12:53,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2b6b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:12:53, skipping insertion in model container [2020-10-11 13:12:53,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:12:53" (3/3) ... [2020-10-11 13:12:53,584 INFO L111 eAbstractionObserver]: Analyzing ICFG sync01.i [2020-10-11 13:12:53,595 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 13:12:53,596 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 13:12:53,603 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 13:12:53,605 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 13:12:53,633 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,633 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,634 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,634 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,634 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,635 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,635 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,635 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,636 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,636 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,636 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,637 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,637 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,637 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,638 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,638 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,638 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,638 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,639 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,639 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,639 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,640 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,640 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,640 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,640 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,641 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,644 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,645 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,645 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,645 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,646 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,646 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,646 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,653 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,654 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,655 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,655 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,655 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:12:53,678 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-11 13:12:53,698 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 13:12:53,698 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 13:12:53,698 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 13:12:53,699 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 13:12:53,699 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 13:12:53,699 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 13:12:53,699 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 13:12:53,699 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 13:12:53,714 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 13:12:53,717 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 91 transitions, 204 flow [2020-10-11 13:12:53,720 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 91 transitions, 204 flow [2020-10-11 13:12:53,723 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 204 flow [2020-10-11 13:12:53,782 INFO L129 PetriNetUnfolder]: 6/91 cut-off events. [2020-10-11 13:12:53,782 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-11 13:12:53,791 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 91 events. 6/91 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2020-10-11 13:12:53,795 INFO L117 LiptonReduction]: Number of co-enabled transitions 840 [2020-10-11 13:12:55,556 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-11 13:12:55,660 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-11 13:12:55,841 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-11 13:12:56,576 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 147 [2020-10-11 13:12:56,873 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-11 13:12:56,883 INFO L132 LiptonReduction]: Checked pairs total: 3301 [2020-10-11 13:12:56,883 INFO L134 LiptonReduction]: Total number of compositions: 68 [2020-10-11 13:12:56,890 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 34 transitions, 90 flow [2020-10-11 13:12:56,909 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2020-10-11 13:12:56,912 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-10-11 13:12:56,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 13:12:56,924 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:12:56,925 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:12:56,925 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:12:56,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:12:56,933 INFO L82 PathProgramCache]: Analyzing trace with hash -495198352, now seen corresponding path program 1 times [2020-10-11 13:12:56,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:12:56,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135140809] [2020-10-11 13:12:56,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:12:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:12:57,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:12:57,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135140809] [2020-10-11 13:12:57,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:12:57,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 13:12:57,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979970635] [2020-10-11 13:12:57,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-11 13:12:57,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:12:57,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-11 13:12:57,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 13:12:57,148 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 2 states. [2020-10-11 13:12:57,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:12:57,173 INFO L93 Difference]: Finished difference Result 198 states and 455 transitions. [2020-10-11 13:12:57,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-11 13:12:57,175 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-10-11 13:12:57,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:12:57,191 INFO L225 Difference]: With dead ends: 198 [2020-10-11 13:12:57,191 INFO L226 Difference]: Without dead ends: 197 [2020-10-11 13:12:57,192 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 13:12:57,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-11 13:12:57,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-10-11 13:12:57,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-11 13:12:57,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 454 transitions. [2020-10-11 13:12:57,247 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 454 transitions. Word has length 15 [2020-10-11 13:12:57,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:12:57,248 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 454 transitions. [2020-10-11 13:12:57,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-11 13:12:57,249 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 454 transitions. [2020-10-11 13:12:57,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-11 13:12:57,254 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:12:57,254 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:12:57,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 13:12:57,255 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:12:57,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:12:57,255 INFO L82 PathProgramCache]: Analyzing trace with hash 279879984, now seen corresponding path program 1 times [2020-10-11 13:12:57,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:12:57,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886433746] [2020-10-11 13:12:57,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:12:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:12:57,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:12:57,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886433746] [2020-10-11 13:12:57,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:12:57,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 13:12:57,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825222495] [2020-10-11 13:12:57,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 13:12:57,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:12:57,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 13:12:57,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:12:57,369 INFO L87 Difference]: Start difference. First operand 197 states and 454 transitions. Second operand 3 states. [2020-10-11 13:12:57,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:12:57,424 INFO L93 Difference]: Finished difference Result 107 states and 223 transitions. [2020-10-11 13:12:57,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 13:12:57,425 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-10-11 13:12:57,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:12:57,426 INFO L225 Difference]: With dead ends: 107 [2020-10-11 13:12:57,426 INFO L226 Difference]: Without dead ends: 107 [2020-10-11 13:12:57,427 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:12:57,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-11 13:12:57,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-10-11 13:12:57,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-11 13:12:57,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 223 transitions. [2020-10-11 13:12:57,453 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 223 transitions. Word has length 21 [2020-10-11 13:12:57,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:12:57,454 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 223 transitions. [2020-10-11 13:12:57,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 13:12:57,454 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 223 transitions. [2020-10-11 13:12:57,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-11 13:12:57,455 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:12:57,456 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:12:57,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 13:12:57,457 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:12:57,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:12:57,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1077149356, now seen corresponding path program 2 times [2020-10-11 13:12:57,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:12:57,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843624281] [2020-10-11 13:12:57,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:12:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:12:57,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:12:57,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843624281] [2020-10-11 13:12:57,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:12:57,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 13:12:57,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167503319] [2020-10-11 13:12:57,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 13:12:57,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:12:57,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 13:12:57,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 13:12:57,587 INFO L87 Difference]: Start difference. First operand 107 states and 223 transitions. Second operand 5 states. [2020-10-11 13:12:57,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:12:57,679 INFO L93 Difference]: Finished difference Result 80 states and 137 transitions. [2020-10-11 13:12:57,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 13:12:57,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-11 13:12:57,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:12:57,681 INFO L225 Difference]: With dead ends: 80 [2020-10-11 13:12:57,681 INFO L226 Difference]: Without dead ends: 80 [2020-10-11 13:12:57,681 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 13:12:57,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-11 13:12:57,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-11 13:12:57,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-11 13:12:57,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 137 transitions. [2020-10-11 13:12:57,691 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 137 transitions. Word has length 21 [2020-10-11 13:12:57,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:12:57,691 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 137 transitions. [2020-10-11 13:12:57,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 13:12:57,691 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 137 transitions. [2020-10-11 13:12:57,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-11 13:12:57,693 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:12:57,693 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:12:57,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 13:12:57,693 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:12:57,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:12:57,694 INFO L82 PathProgramCache]: Analyzing trace with hash 2113878624, now seen corresponding path program 3 times [2020-10-11 13:12:57,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:12:57,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758549474] [2020-10-11 13:12:57,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:12:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:12:57,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:12:57,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758549474] [2020-10-11 13:12:57,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:12:57,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 13:12:57,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37122277] [2020-10-11 13:12:57,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 13:12:57,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:12:57,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 13:12:57,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-11 13:12:57,765 INFO L87 Difference]: Start difference. First operand 80 states and 137 transitions. Second operand 7 states. [2020-10-11 13:12:57,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:12:57,876 INFO L93 Difference]: Finished difference Result 80 states and 136 transitions. [2020-10-11 13:12:57,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 13:12:57,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-10-11 13:12:57,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:12:57,878 INFO L225 Difference]: With dead ends: 80 [2020-10-11 13:12:57,878 INFO L226 Difference]: Without dead ends: 56 [2020-10-11 13:12:57,879 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-11 13:12:57,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-11 13:12:57,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-11 13:12:57,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-11 13:12:57,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 88 transitions. [2020-10-11 13:12:57,883 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 88 transitions. Word has length 21 [2020-10-11 13:12:57,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:12:57,883 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 88 transitions. [2020-10-11 13:12:57,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 13:12:57,884 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 88 transitions. [2020-10-11 13:12:57,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-11 13:12:57,885 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:12:57,885 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:12:57,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 13:12:57,885 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:12:57,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:12:57,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1774524060, now seen corresponding path program 1 times [2020-10-11 13:12:57,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:12:57,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073219327] [2020-10-11 13:12:57,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:12:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:12:57,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:12:57,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073219327] [2020-10-11 13:12:57,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:12:57,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 13:12:57,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796048000] [2020-10-11 13:12:57,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 13:12:57,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:12:57,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 13:12:57,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-11 13:12:57,999 INFO L87 Difference]: Start difference. First operand 56 states and 88 transitions. Second operand 7 states. [2020-10-11 13:12:58,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:12:58,073 INFO L93 Difference]: Finished difference Result 53 states and 82 transitions. [2020-10-11 13:12:58,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 13:12:58,074 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-10-11 13:12:58,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:12:58,074 INFO L225 Difference]: With dead ends: 53 [2020-10-11 13:12:58,074 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 13:12:58,075 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-11 13:12:58,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 13:12:58,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 13:12:58,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 13:12:58,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 13:12:58,076 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-11 13:12:58,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:12:58,076 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 13:12:58,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 13:12:58,077 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 13:12:58,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 13:12:58,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 13:12:58,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 01:12:58 BasicIcfg [2020-10-11 13:12:58,081 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 13:12:58,083 INFO L168 Benchmark]: Toolchain (without parser) took 5984.66 ms. Allocated memory was 251.7 MB in the beginning and 424.7 MB in the end (delta: 173.0 MB). Free memory was 206.8 MB in the beginning and 274.8 MB in the end (delta: -68.0 MB). Peak memory consumption was 105.0 MB. Max. memory is 14.2 GB. [2020-10-11 13:12:58,084 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 251.7 MB. Free memory is still 228.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 13:12:58,085 INFO L168 Benchmark]: CACSL2BoogieTranslator took 879.28 ms. Allocated memory was 251.7 MB in the beginning and 315.1 MB in the end (delta: 63.4 MB). Free memory was 206.8 MB in the beginning and 245.5 MB in the end (delta: -38.7 MB). Peak memory consumption was 34.9 MB. Max. memory is 14.2 GB. [2020-10-11 13:12:58,086 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.09 ms. Allocated memory is still 315.1 MB. Free memory was 245.5 MB in the beginning and 242.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 13:12:58,087 INFO L168 Benchmark]: Boogie Preprocessor took 33.05 ms. Allocated memory is still 315.1 MB. Free memory is still 242.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 13:12:58,087 INFO L168 Benchmark]: RCFGBuilder took 482.09 ms. Allocated memory is still 315.1 MB. Free memory was 242.9 MB in the beginning and 216.1 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-11 13:12:58,088 INFO L168 Benchmark]: TraceAbstraction took 4505.57 ms. Allocated memory was 315.1 MB in the beginning and 424.7 MB in the end (delta: 109.6 MB). Free memory was 213.6 MB in the beginning and 274.8 MB in the end (delta: -61.2 MB). Peak memory consumption was 48.3 MB. Max. memory is 14.2 GB. [2020-10-11 13:12:58,092 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 251.7 MB. Free memory is still 228.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 879.28 ms. Allocated memory was 251.7 MB in the beginning and 315.1 MB in the end (delta: 63.4 MB). Free memory was 206.8 MB in the beginning and 245.5 MB in the end (delta: -38.7 MB). Peak memory consumption was 34.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 79.09 ms. Allocated memory is still 315.1 MB. Free memory was 245.5 MB in the beginning and 242.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 33.05 ms. Allocated memory is still 315.1 MB. Free memory is still 242.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 482.09 ms. Allocated memory is still 315.1 MB. Free memory was 242.9 MB in the beginning and 216.1 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4505.57 ms. Allocated memory was 315.1 MB in the beginning and 424.7 MB in the end (delta: 109.6 MB). Free memory was 213.6 MB in the beginning and 274.8 MB in the end (delta: -61.2 MB). Peak memory consumption was 48.3 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 630 VarBasedMoverChecksPositive, 55 VarBasedMoverChecksNegative, 24 SemBasedMoverChecksPositive, 31 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 222 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.1s, 91 PlacesBefore, 35 PlacesAfterwards, 91 TransitionsBefore, 34 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 6 FixpointIterations, 43 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 68 TotalNumberOfCompositions, 3301 MoverChecksTotal - PositiveResult [Line: 947]: 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, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 130 SDtfs, 112 SDslu, 159 SDs, 0 SdLazy, 121 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 5876 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...