/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:23:07,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:23:07,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:23:07,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:23:07,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:23:07,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:23:07,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:23:07,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:23:07,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:23:07,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:23:07,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:23:07,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:23:07,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:23:07,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:23:07,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:23:07,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:23:07,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:23:07,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:23:07,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:23:07,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:23:07,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:23:07,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:23:07,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:23:07,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:23:07,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:23:07,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:23:07,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:23:07,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:23:07,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:23:07,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:23:07,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:23:07,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:23:07,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:23:07,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:23:07,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:23:07,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:23:07,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:23:07,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:23:07,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:23:07,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:23:07,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:23:07,966 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 11:23:08,003 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:23:08,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:23:08,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:23:08,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:23:08,006 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:23:08,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:23:08,006 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:23:08,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:23:08,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:23:08,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:23:08,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:23:08,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:23:08,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:23:08,009 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:23:08,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:23:08,009 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:23:08,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:23:08,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:23:08,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:23:08,010 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:23:08,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:23:08,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:23:08,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:23:08,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:23:08,011 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:23:08,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:23:08,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:23:08,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:23:08,012 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:23:08,012 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:23:08,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:23:08,328 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:23:08,331 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:23:08,333 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:23:08,333 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:23:08,334 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-10-16 11:23:08,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9cc72401/064aa0f7541b48099d55a381e77b9e1f/FLAG38cecfb9f [2020-10-16 11:23:08,887 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:23:08,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-10-16 11:23:08,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9cc72401/064aa0f7541b48099d55a381e77b9e1f/FLAG38cecfb9f [2020-10-16 11:23:09,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9cc72401/064aa0f7541b48099d55a381e77b9e1f [2020-10-16 11:23:09,165 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:23:09,167 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:23:09,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:23:09,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:23:09,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:23:09,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:23:09" (1/1) ... [2020-10-16 11:23:09,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e2b02d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:09, skipping insertion in model container [2020-10-16 11:23:09,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:23:09" (1/1) ... [2020-10-16 11:23:09,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:23:09,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:23:09,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:23:09,853 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:23:09,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:23:10,031 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:23:10,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:10 WrapperNode [2020-10-16 11:23:10,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:23:10,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:23:10,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:23:10,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:23:10,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:10" (1/1) ... [2020-10-16 11:23:10,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:10" (1/1) ... [2020-10-16 11:23:10,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:23:10,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:23:10,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:23:10,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:23:10,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:10" (1/1) ... [2020-10-16 11:23:10,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:10" (1/1) ... [2020-10-16 11:23:10,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:10" (1/1) ... [2020-10-16 11:23:10,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:10" (1/1) ... [2020-10-16 11:23:10,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:10" (1/1) ... [2020-10-16 11:23:10,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:10" (1/1) ... [2020-10-16 11:23:10,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:10" (1/1) ... [2020-10-16 11:23:10,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:23:10,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:23:10,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:23:10,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:23:10,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:23:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:23:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:23:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:23:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:23:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:23:10,214 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:23:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:23:10,215 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:23:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 11:23:10,217 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 11:23:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-16 11:23:10,217 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-16 11:23:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:23:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:23:10,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:23:10,220 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:23:10,775 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:23:10,775 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 11:23:10,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:23:10 BoogieIcfgContainer [2020-10-16 11:23:10,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:23:10,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:23:10,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:23:10,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:23:10,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:23:09" (1/3) ... [2020-10-16 11:23:10,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce44d9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:23:10, skipping insertion in model container [2020-10-16 11:23:10,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:10" (2/3) ... [2020-10-16 11:23:10,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce44d9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:23:10, skipping insertion in model container [2020-10-16 11:23:10,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:23:10" (3/3) ... [2020-10-16 11:23:10,789 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2020-10-16 11:23:10,803 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:23:10,803 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:23:10,812 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:23:10,814 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:23:10,846 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,846 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,847 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,847 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,848 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,848 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,848 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,849 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,849 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,849 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,850 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,850 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,850 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,851 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,851 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,851 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,852 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,852 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,852 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,853 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,853 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,853 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,853 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,854 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,857 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,858 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,858 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,858 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,866 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,866 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,867 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,867 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,870 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,870 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,870 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,871 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,875 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,876 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,876 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:10,878 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:23:10,891 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 11:23:10,913 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:23:10,913 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:23:10,913 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:23:10,914 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:23:10,914 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:23:10,914 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:23:10,914 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:23:10,914 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:23:10,930 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:23:10,932 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-10-16 11:23:10,934 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 86 transitions, 192 flow [2020-10-16 11:23:10,936 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-10-16 11:23:10,986 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-10-16 11:23:10,986 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:23:10,993 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-10-16 11:23:10,998 INFO L117 LiptonReduction]: Number of co-enabled transitions 2016 [2020-10-16 11:23:12,823 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-16 11:23:12,894 INFO L132 LiptonReduction]: Checked pairs total: 4737 [2020-10-16 11:23:12,895 INFO L134 LiptonReduction]: Total number of compositions: 68 [2020-10-16 11:23:12,902 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-10-16 11:23:13,003 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-10-16 11:23:13,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-10-16 11:23:13,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 11:23:13,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:23:13,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:23:13,019 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:23:13,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:23:13,025 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-10-16 11:23:13,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:23:13,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292755560] [2020-10-16 11:23:13,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:23:13,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:23:13,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:23:13,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292755560] [2020-10-16 11:23:13,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:23:13,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:23:13,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276563603] [2020-10-16 11:23:13,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 11:23:13,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:23:13,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 11:23:13,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 11:23:13,259 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-10-16 11:23:13,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:23:13,340 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-10-16 11:23:13,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 11:23:13,342 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-16 11:23:13,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:23:13,385 INFO L225 Difference]: With dead ends: 1450 [2020-10-16 11:23:13,385 INFO L226 Difference]: Without dead ends: 1194 [2020-10-16 11:23:13,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 11:23:13,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-10-16 11:23:13,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-10-16 11:23:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-10-16 11:23:13,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-10-16 11:23:13,532 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-10-16 11:23:13,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:23:13,533 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-10-16 11:23:13,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 11:23:13,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-10-16 11:23:13,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 11:23:13,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:23:13,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:23:13,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:23:13,546 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:23:13,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:23:13,546 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-10-16 11:23:13,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:23:13,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185262264] [2020-10-16 11:23:13,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:23:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:23:13,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:23:13,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185262264] [2020-10-16 11:23:13,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:23:13,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:23:13,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212217012] [2020-10-16 11:23:13,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:23:13,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:23:13,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:23:13,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:23:13,767 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-10-16 11:23:13,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:23:13,808 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-10-16 11:23:13,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:23:13,809 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 11:23:13,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:23:13,819 INFO L225 Difference]: With dead ends: 1322 [2020-10-16 11:23:13,819 INFO L226 Difference]: Without dead ends: 1066 [2020-10-16 11:23:13,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:23:13,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-16 11:23:13,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-10-16 11:23:13,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-16 11:23:13,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-10-16 11:23:13,858 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-10-16 11:23:13,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:23:13,858 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-10-16 11:23:13,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:23:13,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-10-16 11:23:13,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:23:13,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:23:13,861 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:23:13,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:23:13,861 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:23:13,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:23:13,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1527944373, now seen corresponding path program 1 times [2020-10-16 11:23:13,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:23:13,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174802737] [2020-10-16 11:23:13,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:23:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:23:13,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:23:13,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174802737] [2020-10-16 11:23:13,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:23:13,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:23:13,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808220002] [2020-10-16 11:23:13,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:23:13,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:23:13,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:23:13,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:23:13,929 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-10-16 11:23:13,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:23:13,963 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-10-16 11:23:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:23:13,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:23:13,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:23:13,972 INFO L225 Difference]: With dead ends: 1162 [2020-10-16 11:23:13,972 INFO L226 Difference]: Without dead ends: 970 [2020-10-16 11:23:13,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:23:13,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-16 11:23:14,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-10-16 11:23:14,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-10-16 11:23:14,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-10-16 11:23:14,010 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-10-16 11:23:14,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:23:14,010 INFO L481 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-10-16 11:23:14,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:23:14,010 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-10-16 11:23:14,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:23:14,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:23:14,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:23:14,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:23:14,013 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:23:14,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:23:14,013 INFO L82 PathProgramCache]: Analyzing trace with hash -121660302, now seen corresponding path program 1 times [2020-10-16 11:23:14,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:23:14,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802620660] [2020-10-16 11:23:14,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:23:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:23:14,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:23:14,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802620660] [2020-10-16 11:23:14,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:23:14,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:23:14,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078706006] [2020-10-16 11:23:14,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:23:14,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:23:14,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:23:14,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:23:14,077 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 5 states. [2020-10-16 11:23:14,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:23:14,126 INFO L93 Difference]: Finished difference Result 1162 states and 3980 transitions. [2020-10-16 11:23:14,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:23:14,127 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 11:23:14,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:23:14,132 INFO L225 Difference]: With dead ends: 1162 [2020-10-16 11:23:14,133 INFO L226 Difference]: Without dead ends: 634 [2020-10-16 11:23:14,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:23:14,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-10-16 11:23:14,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-10-16 11:23:14,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-10-16 11:23:14,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2052 transitions. [2020-10-16 11:23:14,155 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2052 transitions. Word has length 13 [2020-10-16 11:23:14,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:23:14,156 INFO L481 AbstractCegarLoop]: Abstraction has 634 states and 2052 transitions. [2020-10-16 11:23:14,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:23:14,156 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2052 transitions. [2020-10-16 11:23:14,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:23:14,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:23:14,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:23:14,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:23:14,158 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:23:14,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:23:14,159 INFO L82 PathProgramCache]: Analyzing trace with hash -952650144, now seen corresponding path program 1 times [2020-10-16 11:23:14,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:23:14,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006988479] [2020-10-16 11:23:14,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:23:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:23:14,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:23:14,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006988479] [2020-10-16 11:23:14,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:23:14,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:23:14,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641454662] [2020-10-16 11:23:14,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:23:14,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:23:14,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:23:14,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:23:14,221 INFO L87 Difference]: Start difference. First operand 634 states and 2052 transitions. Second operand 5 states. [2020-10-16 11:23:14,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:23:14,271 INFO L93 Difference]: Finished difference Result 850 states and 2690 transitions. [2020-10-16 11:23:14,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:23:14,272 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-16 11:23:14,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:23:14,275 INFO L225 Difference]: With dead ends: 850 [2020-10-16 11:23:14,276 INFO L226 Difference]: Without dead ends: 394 [2020-10-16 11:23:14,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:23:14,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-16 11:23:14,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-16 11:23:14,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-16 11:23:14,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1168 transitions. [2020-10-16 11:23:14,289 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1168 transitions. Word has length 15 [2020-10-16 11:23:14,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:23:14,290 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1168 transitions. [2020-10-16 11:23:14,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:23:14,290 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1168 transitions. [2020-10-16 11:23:14,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 11:23:14,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:23:14,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:23:14,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:23:14,292 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:23:14,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:23:14,292 INFO L82 PathProgramCache]: Analyzing trace with hash 120484504, now seen corresponding path program 1 times [2020-10-16 11:23:14,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:23:14,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875270996] [2020-10-16 11:23:14,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:23:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:23:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:23:14,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875270996] [2020-10-16 11:23:14,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:23:14,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:23:14,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748591432] [2020-10-16 11:23:14,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:23:14,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:23:14,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:23:14,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:23:14,343 INFO L87 Difference]: Start difference. First operand 394 states and 1168 transitions. Second operand 4 states. [2020-10-16 11:23:14,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:23:14,361 INFO L93 Difference]: Finished difference Result 418 states and 1208 transitions. [2020-10-16 11:23:14,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:23:14,362 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-16 11:23:14,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:23:14,365 INFO L225 Difference]: With dead ends: 418 [2020-10-16 11:23:14,365 INFO L226 Difference]: Without dead ends: 370 [2020-10-16 11:23:14,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:23:14,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-16 11:23:14,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2020-10-16 11:23:14,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-16 11:23:14,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1080 transitions. [2020-10-16 11:23:14,378 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1080 transitions. Word has length 16 [2020-10-16 11:23:14,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:23:14,378 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 1080 transitions. [2020-10-16 11:23:14,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:23:14,379 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1080 transitions. [2020-10-16 11:23:14,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 11:23:14,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:23:14,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:23:14,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:23:14,381 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:23:14,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:23:14,381 INFO L82 PathProgramCache]: Analyzing trace with hash 263975146, now seen corresponding path program 1 times [2020-10-16 11:23:14,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:23:14,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644858737] [2020-10-16 11:23:14,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:23:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:23:14,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:23:14,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644858737] [2020-10-16 11:23:14,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:23:14,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:23:14,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877468858] [2020-10-16 11:23:14,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:23:14,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:23:14,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:23:14,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:23:14,460 INFO L87 Difference]: Start difference. First operand 370 states and 1080 transitions. Second operand 5 states. [2020-10-16 11:23:14,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:23:14,507 INFO L93 Difference]: Finished difference Result 430 states and 1240 transitions. [2020-10-16 11:23:14,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:23:14,508 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-16 11:23:14,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:23:14,510 INFO L225 Difference]: With dead ends: 430 [2020-10-16 11:23:14,510 INFO L226 Difference]: Without dead ends: 172 [2020-10-16 11:23:14,510 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:23:14,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-16 11:23:14,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-10-16 11:23:14,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-16 11:23:14,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 452 transitions. [2020-10-16 11:23:14,541 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 452 transitions. Word has length 17 [2020-10-16 11:23:14,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:23:14,541 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 452 transitions. [2020-10-16 11:23:14,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:23:14,541 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 452 transitions. [2020-10-16 11:23:14,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:23:14,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:23:14,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:23:14,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:23:14,543 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:23:14,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:23:14,543 INFO L82 PathProgramCache]: Analyzing trace with hash -180488596, now seen corresponding path program 1 times [2020-10-16 11:23:14,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:23:14,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914240098] [2020-10-16 11:23:14,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:23:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:23:14,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:23:14,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914240098] [2020-10-16 11:23:14,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:23:14,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:23:14,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386746269] [2020-10-16 11:23:14,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:23:14,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:23:14,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:23:14,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:23:14,595 INFO L87 Difference]: Start difference. First operand 172 states and 452 transitions. Second operand 5 states. [2020-10-16 11:23:14,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:23:14,627 INFO L93 Difference]: Finished difference Result 148 states and 376 transitions. [2020-10-16 11:23:14,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:23:14,627 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 11:23:14,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:23:14,628 INFO L225 Difference]: With dead ends: 148 [2020-10-16 11:23:14,628 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:23:14,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:23:14,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:23:14,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:23:14,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:23:14,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:23:14,629 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-16 11:23:14,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:23:14,630 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:23:14,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:23:14,630 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:23:14,630 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:23:14,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 11:23:14,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:23:14 BasicIcfg [2020-10-16 11:23:14,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:23:14,636 INFO L168 Benchmark]: Toolchain (without parser) took 5469.31 ms. Allocated memory was 143.1 MB in the beginning and 305.1 MB in the end (delta: 162.0 MB). Free memory was 97.8 MB in the beginning and 252.0 MB in the end (delta: -154.1 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:23:14,637 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 143.1 MB. Free memory was 117.8 MB in the beginning and 117.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:23:14,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 864.25 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 97.4 MB in the beginning and 157.7 MB in the end (delta: -60.3 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-10-16 11:23:14,638 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.40 ms. Allocated memory is still 200.8 MB. Free memory was 157.7 MB in the beginning and 155.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-10-16 11:23:14,639 INFO L168 Benchmark]: Boogie Preprocessor took 32.07 ms. Allocated memory is still 200.8 MB. Free memory was 155.5 MB in the beginning and 154.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-10-16 11:23:14,640 INFO L168 Benchmark]: RCFGBuilder took 657.13 ms. Allocated memory is still 200.8 MB. Free memory was 154.0 MB in the beginning and 129.0 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:23:14,641 INFO L168 Benchmark]: TraceAbstraction took 3853.67 ms. Allocated memory was 200.8 MB in the beginning and 305.1 MB in the end (delta: 104.3 MB). Free memory was 128.3 MB in the beginning and 252.0 MB in the end (delta: -123.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:23:14,645 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 143.1 MB. Free memory was 117.8 MB in the beginning and 117.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 864.25 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 97.4 MB in the beginning and 157.7 MB in the end (delta: -60.3 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.40 ms. Allocated memory is still 200.8 MB. Free memory was 157.7 MB in the beginning and 155.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.07 ms. Allocated memory is still 200.8 MB. Free memory was 155.5 MB in the beginning and 154.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 657.13 ms. Allocated memory is still 200.8 MB. Free memory was 154.0 MB in the beginning and 129.0 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3853.67 ms. Allocated memory was 200.8 MB in the beginning and 305.1 MB in the end (delta: 104.3 MB). Free memory was 128.3 MB in the beginning and 252.0 MB in the end (delta: -123.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1437 VarBasedMoverChecksPositive, 59 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 188 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 97 PlacesBefore, 41 PlacesAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 68 TotalNumberOfCompositions, 4737 MoverChecksTotal - PositiveResult [Line: 7]: 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 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 232 SDtfs, 262 SDslu, 320 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred 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: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 4169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...