/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-wmm/mix040_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 14:51:00,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 14:51:00,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 14:51:00,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 14:51:00,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 14:51:00,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 14:51:00,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 14:51:00,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 14:51:00,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 14:51:00,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 14:51:00,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 14:51:00,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 14:51:00,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 14:51:00,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 14:51:00,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 14:51:00,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 14:51:00,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 14:51:00,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 14:51:00,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 14:51:00,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 14:51:00,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 14:51:00,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 14:51:00,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 14:51:00,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 14:51:00,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 14:51:00,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 14:51:00,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 14:51:00,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 14:51:00,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 14:51:00,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 14:51:00,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 14:51:00,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 14:51:00,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 14:51:00,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 14:51:00,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 14:51:00,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 14:51:00,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 14:51:00,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 14:51:00,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 14:51:00,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 14:51:00,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 14:51:00,880 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 14:51:00,902 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 14:51:00,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 14:51:00,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 14:51:00,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 14:51:00,904 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 14:51:00,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 14:51:00,904 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 14:51:00,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 14:51:00,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 14:51:00,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 14:51:00,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 14:51:00,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 14:51:00,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 14:51:00,905 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 14:51:00,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 14:51:00,906 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 14:51:00,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 14:51:00,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 14:51:00,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 14:51:00,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 14:51:00,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 14:51:00,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 14:51:00,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 14:51:00,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 14:51:00,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 14:51:00,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 14:51:00,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 14:51:00,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 14:51:00,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 14:51:00,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 14:51:01,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 14:51:01,208 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 14:51:01,214 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 14:51:01,216 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 14:51:01,218 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 14:51:01,219 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix040_power.opt.i [2020-10-11 14:51:01,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0eb4ce949/ecf010805091450999158368e1379e12/FLAGfee86d1c2 [2020-10-11 14:51:01,733 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 14:51:01,734 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_power.opt.i [2020-10-11 14:51:01,751 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0eb4ce949/ecf010805091450999158368e1379e12/FLAGfee86d1c2 [2020-10-11 14:51:02,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0eb4ce949/ecf010805091450999158368e1379e12 [2020-10-11 14:51:02,057 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 14:51:02,059 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 14:51:02,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 14:51:02,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 14:51:02,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 14:51:02,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:51:02" (1/1) ... [2020-10-11 14:51:02,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d22ae64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:02, skipping insertion in model container [2020-10-11 14:51:02,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:51:02" (1/1) ... [2020-10-11 14:51:02,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 14:51:02,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 14:51:02,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 14:51:02,677 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 14:51:02,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 14:51:02,837 INFO L208 MainTranslator]: Completed translation [2020-10-11 14:51:02,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:02 WrapperNode [2020-10-11 14:51:02,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 14:51:02,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 14:51:02,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 14:51:02,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 14:51:02,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:02" (1/1) ... [2020-10-11 14:51:02,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:02" (1/1) ... [2020-10-11 14:51:02,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 14:51:02,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 14:51:02,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 14:51:02,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 14:51:02,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:02" (1/1) ... [2020-10-11 14:51:02,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:02" (1/1) ... [2020-10-11 14:51:02,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:02" (1/1) ... [2020-10-11 14:51:02,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:02" (1/1) ... [2020-10-11 14:51:02,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:02" (1/1) ... [2020-10-11 14:51:02,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:02" (1/1) ... [2020-10-11 14:51:02,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:02" (1/1) ... [2020-10-11 14:51:02,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 14:51:02,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 14:51:02,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 14:51:02,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 14:51:02,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:02" (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 14:51:03,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 14:51:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 14:51:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 14:51:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 14:51:03,052 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 14:51:03,052 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 14:51:03,052 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 14:51:03,053 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 14:51:03,053 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 14:51:03,054 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 14:51:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-11 14:51:03,055 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-11 14:51:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 14:51:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 14:51:03,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 14:51:03,057 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 14:51:04,900 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 14:51:04,901 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-11 14:51:04,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:51:04 BoogieIcfgContainer [2020-10-11 14:51:04,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 14:51:04,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 14:51:04,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 14:51:04,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 14:51:04,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:51:02" (1/3) ... [2020-10-11 14:51:04,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8615fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:51:04, skipping insertion in model container [2020-10-11 14:51:04,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:51:02" (2/3) ... [2020-10-11 14:51:04,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8615fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:51:04, skipping insertion in model container [2020-10-11 14:51:04,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:51:04" (3/3) ... [2020-10-11 14:51:04,913 INFO L111 eAbstractionObserver]: Analyzing ICFG mix040_power.opt.i [2020-10-11 14:51:04,924 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 14:51:04,925 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 14:51:04,936 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-11 14:51:04,937 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 14:51:04,976 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,976 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,976 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,976 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,977 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,977 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,978 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,978 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,978 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,978 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,979 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,979 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,979 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,979 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,980 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,980 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,980 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,980 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,980 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,981 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,981 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,981 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,981 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,981 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,982 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,982 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,982 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,982 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,982 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,987 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,987 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,987 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,987 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,987 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,987 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,988 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,988 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,988 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,990 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,991 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,991 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,991 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,991 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,991 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,992 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,992 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,994 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,995 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,995 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,995 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,995 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,996 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,996 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,997 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:04,997 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,002 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,003 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,007 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,008 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,009 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,009 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,010 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,010 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,010 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,010 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,014 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,015 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,015 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,015 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,015 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,015 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,016 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,016 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,016 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,016 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,016 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,017 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,020 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,020 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,021 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,021 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 14:51:05,037 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-11 14:51:05,058 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 14:51:05,058 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 14:51:05,059 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 14:51:05,059 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 14:51:05,059 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 14:51:05,060 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 14:51:05,060 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 14:51:05,060 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 14:51:05,081 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 14:51:05,084 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 111 transitions, 242 flow [2020-10-11 14:51:05,086 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 111 transitions, 242 flow [2020-10-11 14:51:05,088 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 122 places, 111 transitions, 242 flow [2020-10-11 14:51:05,136 INFO L129 PetriNetUnfolder]: 2/107 cut-off events. [2020-10-11 14:51:05,137 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 14:51:05,142 INFO L80 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 107 events. 2/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2020-10-11 14:51:05,146 INFO L117 LiptonReduction]: Number of co-enabled transitions 2432 [2020-10-11 14:51:05,303 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-11 14:51:05,304 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-10-11 14:51:05,312 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 2, 5, 3, 5, 3, 3, 2, 1] term [2020-10-11 14:51:05,313 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:05,381 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:05,382 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:05,386 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-11 14:51:05,386 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-11 14:51:05,388 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-11 14:51:05,389 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-11 14:51:05,391 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-11 14:51:05,391 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-11 14:51:05,395 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-11 14:51:05,396 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:05,398 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-11 14:51:05,398 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:05,400 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 2, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-11 14:51:05,401 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:05,884 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-11 14:51:05,995 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-11 14:51:06,266 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:06,267 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:06,268 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:06,271 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:06,279 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:06,281 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-11 14:51:06,287 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-11 14:51:06,288 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-11 14:51:06,316 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-11 14:51:06,317 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:06,318 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:06,318 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:06,324 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:06,325 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-11 14:51:06,328 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-11 14:51:06,328 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-11 14:51:06,478 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2020-10-11 14:51:06,478 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:07,004 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-11 14:51:07,004 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-10-11 14:51:07,028 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 2, 5, 3, 5, 3, 3, 2, 1] term [2020-10-11 14:51:07,029 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:07,080 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-11 14:51:07,080 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:07,083 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-11 14:51:07,084 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-11 14:51:07,087 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-11 14:51:07,089 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-11 14:51:07,090 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-11 14:51:07,091 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-11 14:51:07,094 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-11 14:51:07,094 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:07,098 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-11 14:51:07,099 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:07,100 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-11 14:51:07,101 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:07,418 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-11 14:51:07,418 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:07,419 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 4, 4, 3, 3, 2, 1] term [2020-10-11 14:51:07,420 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:07,420 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 4, 4, 3, 3, 2, 1] term [2020-10-11 14:51:07,421 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:07,623 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-11 14:51:07,624 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-11 14:51:07,630 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-11 14:51:07,630 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-11 14:51:07,632 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-11 14:51:07,633 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-11 14:51:07,636 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-11 14:51:07,636 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-11 14:51:07,638 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-11 14:51:07,639 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:07,642 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-11 14:51:07,642 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:07,644 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 2, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-11 14:51:07,645 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:07,691 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-11 14:51:07,692 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-10-11 14:51:07,694 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 2, 5, 3, 5, 3, 3, 2, 1] term [2020-10-11 14:51:07,695 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:08,077 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-11 14:51:08,077 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:08,078 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 4, 4, 3, 3, 2, 1] term [2020-10-11 14:51:08,079 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:08,080 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 4, 4, 3, 3, 2, 1] term [2020-10-11 14:51:08,080 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-11 14:51:08,983 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-10-11 14:51:09,116 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-11 14:51:09,127 INFO L132 LiptonReduction]: Checked pairs total: 5758 [2020-10-11 14:51:09,127 INFO L134 LiptonReduction]: Total number of compositions: 88 [2020-10-11 14:51:09,134 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 33 transitions, 86 flow [2020-10-11 14:51:09,301 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2858 states. [2020-10-11 14:51:09,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2858 states. [2020-10-11 14:51:09,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 14:51:09,312 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:51:09,313 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:51:09,313 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:51:09,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:51:09,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1119963166, now seen corresponding path program 1 times [2020-10-11 14:51:09,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:51:09,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895296947] [2020-10-11 14:51:09,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:51:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:51:09,631 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 14:51:09,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895296947] [2020-10-11 14:51:09,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:51:09,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 14:51:09,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147707103] [2020-10-11 14:51:09,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 14:51:09,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:51:09,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 14:51:09,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 14:51:09,656 INFO L87 Difference]: Start difference. First operand 2858 states. Second operand 3 states. [2020-10-11 14:51:09,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:51:09,751 INFO L93 Difference]: Finished difference Result 2474 states and 9536 transitions. [2020-10-11 14:51:09,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 14:51:09,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-11 14:51:09,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:51:09,790 INFO L225 Difference]: With dead ends: 2474 [2020-10-11 14:51:09,791 INFO L226 Difference]: Without dead ends: 2090 [2020-10-11 14:51:09,792 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 14:51:09,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2020-10-11 14:51:09,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 2090. [2020-10-11 14:51:09,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2090 states. [2020-10-11 14:51:09,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 7968 transitions. [2020-10-11 14:51:09,995 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 7968 transitions. Word has length 9 [2020-10-11 14:51:09,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:51:09,996 INFO L481 AbstractCegarLoop]: Abstraction has 2090 states and 7968 transitions. [2020-10-11 14:51:09,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 14:51:09,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 7968 transitions. [2020-10-11 14:51:10,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 14:51:10,007 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:51:10,008 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:51:10,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 14:51:10,008 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:51:10,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:51:10,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1515313116, now seen corresponding path program 1 times [2020-10-11 14:51:10,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:51:10,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288250074] [2020-10-11 14:51:10,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:51:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:51:10,161 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 14:51:10,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288250074] [2020-10-11 14:51:10,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:51:10,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 14:51:10,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762104321] [2020-10-11 14:51:10,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 14:51:10,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:51:10,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 14:51:10,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 14:51:10,215 INFO L87 Difference]: Start difference. First operand 2090 states and 7968 transitions. Second operand 4 states. [2020-10-11 14:51:10,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:51:10,275 INFO L93 Difference]: Finished difference Result 2378 states and 8760 transitions. [2020-10-11 14:51:10,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 14:51:10,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-11 14:51:10,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:51:10,293 INFO L225 Difference]: With dead ends: 2378 [2020-10-11 14:51:10,293 INFO L226 Difference]: Without dead ends: 1994 [2020-10-11 14:51:10,294 INFO L673 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 [2020-10-11 14:51:10,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2020-10-11 14:51:10,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1994. [2020-10-11 14:51:10,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2020-10-11 14:51:10,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 7528 transitions. [2020-10-11 14:51:10,373 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 7528 transitions. Word has length 12 [2020-10-11 14:51:10,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:51:10,373 INFO L481 AbstractCegarLoop]: Abstraction has 1994 states and 7528 transitions. [2020-10-11 14:51:10,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 14:51:10,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 7528 transitions. [2020-10-11 14:51:10,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-11 14:51:10,376 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:51:10,376 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:51:10,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 14:51:10,376 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:51:10,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:51:10,377 INFO L82 PathProgramCache]: Analyzing trace with hash -211490932, now seen corresponding path program 1 times [2020-10-11 14:51:10,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:51:10,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582005198] [2020-10-11 14:51:10,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:51:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:51:10,453 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 14:51:10,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582005198] [2020-10-11 14:51:10,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:51:10,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 14:51:10,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229009020] [2020-10-11 14:51:10,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 14:51:10,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:51:10,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 14:51:10,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 14:51:10,456 INFO L87 Difference]: Start difference. First operand 1994 states and 7528 transitions. Second operand 4 states. [2020-10-11 14:51:10,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:51:10,499 INFO L93 Difference]: Finished difference Result 2106 states and 7716 transitions. [2020-10-11 14:51:10,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 14:51:10,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-11 14:51:10,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:51:10,515 INFO L225 Difference]: With dead ends: 2106 [2020-10-11 14:51:10,515 INFO L226 Difference]: Without dead ends: 1770 [2020-10-11 14:51:10,516 INFO L673 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 [2020-10-11 14:51:10,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2020-10-11 14:51:10,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1770. [2020-10-11 14:51:10,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1770 states. [2020-10-11 14:51:10,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 6592 transitions. [2020-10-11 14:51:10,578 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 6592 transitions. Word has length 13 [2020-10-11 14:51:10,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:51:10,579 INFO L481 AbstractCegarLoop]: Abstraction has 1770 states and 6592 transitions. [2020-10-11 14:51:10,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 14:51:10,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 6592 transitions. [2020-10-11 14:51:10,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 14:51:10,582 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:51:10,582 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:51:10,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 14:51:10,582 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:51:10,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:51:10,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1375717954, now seen corresponding path program 1 times [2020-10-11 14:51:10,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:51:10,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495069537] [2020-10-11 14:51:10,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:51:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:51:10,685 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 14:51:10,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495069537] [2020-10-11 14:51:10,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:51:10,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 14:51:10,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394021837] [2020-10-11 14:51:10,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 14:51:10,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:51:10,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 14:51:10,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 14:51:10,688 INFO L87 Difference]: Start difference. First operand 1770 states and 6592 transitions. Second operand 4 states. [2020-10-11 14:51:10,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:51:10,738 INFO L93 Difference]: Finished difference Result 1914 states and 6964 transitions. [2020-10-11 14:51:10,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 14:51:10,738 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-11 14:51:10,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:51:10,753 INFO L225 Difference]: With dead ends: 1914 [2020-10-11 14:51:10,753 INFO L226 Difference]: Without dead ends: 1722 [2020-10-11 14:51:10,754 INFO L673 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 [2020-10-11 14:51:10,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2020-10-11 14:51:10,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1722. [2020-10-11 14:51:10,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1722 states. [2020-10-11 14:51:10,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 6380 transitions. [2020-10-11 14:51:10,812 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 6380 transitions. Word has length 15 [2020-10-11 14:51:10,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:51:10,812 INFO L481 AbstractCegarLoop]: Abstraction has 1722 states and 6380 transitions. [2020-10-11 14:51:10,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 14:51:10,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 6380 transitions. [2020-10-11 14:51:10,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-11 14:51:10,816 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:51:10,816 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:51:10,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 14:51:10,817 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:51:10,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:51:10,817 INFO L82 PathProgramCache]: Analyzing trace with hash 302507353, now seen corresponding path program 1 times [2020-10-11 14:51:10,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:51:10,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071380076] [2020-10-11 14:51:10,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:51:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:51:10,893 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 14:51:10,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071380076] [2020-10-11 14:51:10,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:51:10,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 14:51:10,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110024226] [2020-10-11 14:51:10,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 14:51:10,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:51:10,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 14:51:10,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 14:51:10,896 INFO L87 Difference]: Start difference. First operand 1722 states and 6380 transitions. Second operand 4 states. [2020-10-11 14:51:10,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:51:10,948 INFO L93 Difference]: Finished difference Result 1734 states and 5839 transitions. [2020-10-11 14:51:10,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 14:51:10,948 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-11 14:51:10,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:51:10,959 INFO L225 Difference]: With dead ends: 1734 [2020-10-11 14:51:10,959 INFO L226 Difference]: Without dead ends: 1350 [2020-10-11 14:51:10,959 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 14:51:10,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2020-10-11 14:51:10,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1350. [2020-10-11 14:51:10,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1350 states. [2020-10-11 14:51:11,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 4520 transitions. [2020-10-11 14:51:11,000 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 4520 transitions. Word has length 16 [2020-10-11 14:51:11,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:51:11,001 INFO L481 AbstractCegarLoop]: Abstraction has 1350 states and 4520 transitions. [2020-10-11 14:51:11,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 14:51:11,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 4520 transitions. [2020-10-11 14:51:11,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 14:51:11,004 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:51:11,004 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:51:11,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 14:51:11,005 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:51:11,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:51:11,005 INFO L82 PathProgramCache]: Analyzing trace with hash -263809405, now seen corresponding path program 1 times [2020-10-11 14:51:11,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:51:11,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688243596] [2020-10-11 14:51:11,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:51:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:51:11,064 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 14:51:11,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688243596] [2020-10-11 14:51:11,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:51:11,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 14:51:11,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741868272] [2020-10-11 14:51:11,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 14:51:11,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:51:11,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 14:51:11,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 14:51:11,067 INFO L87 Difference]: Start difference. First operand 1350 states and 4520 transitions. Second operand 4 states. [2020-10-11 14:51:11,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:51:11,114 INFO L93 Difference]: Finished difference Result 2014 states and 6492 transitions. [2020-10-11 14:51:11,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 14:51:11,114 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 14:51:11,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:51:11,124 INFO L225 Difference]: With dead ends: 2014 [2020-10-11 14:51:11,125 INFO L226 Difference]: Without dead ends: 1424 [2020-10-11 14:51:11,125 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 14:51:11,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2020-10-11 14:51:11,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1304. [2020-10-11 14:51:11,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1304 states. [2020-10-11 14:51:11,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 4174 transitions. [2020-10-11 14:51:11,164 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 4174 transitions. Word has length 17 [2020-10-11 14:51:11,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:51:11,165 INFO L481 AbstractCegarLoop]: Abstraction has 1304 states and 4174 transitions. [2020-10-11 14:51:11,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 14:51:11,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 4174 transitions. [2020-10-11 14:51:11,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-11 14:51:11,168 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:51:11,168 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 14:51:11,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 14:51:11,168 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:51:11,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:51:11,169 INFO L82 PathProgramCache]: Analyzing trace with hash -2129023803, now seen corresponding path program 1 times [2020-10-11 14:51:11,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:51:11,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339713075] [2020-10-11 14:51:11,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:51:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:51:11,319 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 14:51:11,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339713075] [2020-10-11 14:51:11,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:51:11,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 14:51:11,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848344638] [2020-10-11 14:51:11,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 14:51:11,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:51:11,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 14:51:11,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 14:51:11,322 INFO L87 Difference]: Start difference. First operand 1304 states and 4174 transitions. Second operand 5 states. [2020-10-11 14:51:11,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:51:11,392 INFO L93 Difference]: Finished difference Result 1087 states and 3136 transitions. [2020-10-11 14:51:11,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 14:51:11,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-11 14:51:11,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:51:11,399 INFO L225 Difference]: With dead ends: 1087 [2020-10-11 14:51:11,400 INFO L226 Difference]: Without dead ends: 838 [2020-10-11 14:51:11,400 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 14:51:11,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-10-11 14:51:11,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-10-11 14:51:11,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-10-11 14:51:11,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 2372 transitions. [2020-10-11 14:51:11,429 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 2372 transitions. Word has length 18 [2020-10-11 14:51:11,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:51:11,430 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 2372 transitions. [2020-10-11 14:51:11,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 14:51:11,430 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 2372 transitions. [2020-10-11 14:51:11,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-11 14:51:11,432 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:51:11,432 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] [2020-10-11 14:51:11,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 14:51:11,433 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:51:11,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:51:11,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1324875424, now seen corresponding path program 1 times [2020-10-11 14:51:11,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:51:11,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582374925] [2020-10-11 14:51:11,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:51:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:51:11,546 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 14:51:11,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582374925] [2020-10-11 14:51:11,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:51:11,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 14:51:11,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023201645] [2020-10-11 14:51:11,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 14:51:11,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:51:11,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 14:51:11,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 14:51:11,548 INFO L87 Difference]: Start difference. First operand 838 states and 2372 transitions. Second operand 4 states. [2020-10-11 14:51:11,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:51:11,579 INFO L93 Difference]: Finished difference Result 1226 states and 3318 transitions. [2020-10-11 14:51:11,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 14:51:11,580 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-11 14:51:11,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:51:11,585 INFO L225 Difference]: With dead ends: 1226 [2020-10-11 14:51:11,585 INFO L226 Difference]: Without dead ends: 856 [2020-10-11 14:51:11,586 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 14:51:11,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2020-10-11 14:51:11,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 824. [2020-10-11 14:51:11,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2020-10-11 14:51:11,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 2208 transitions. [2020-10-11 14:51:11,610 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 2208 transitions. Word has length 20 [2020-10-11 14:51:11,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:51:11,611 INFO L481 AbstractCegarLoop]: Abstraction has 824 states and 2208 transitions. [2020-10-11 14:51:11,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 14:51:11,611 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 2208 transitions. [2020-10-11 14:51:11,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-11 14:51:11,614 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:51:11,614 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] [2020-10-11 14:51:11,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 14:51:11,615 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:51:11,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:51:11,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1544069227, now seen corresponding path program 1 times [2020-10-11 14:51:11,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:51:11,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812175683] [2020-10-11 14:51:11,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:51:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:51:11,752 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 14:51:11,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812175683] [2020-10-11 14:51:11,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:51:11,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 14:51:11,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735763719] [2020-10-11 14:51:11,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 14:51:11,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:51:11,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 14:51:11,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 14:51:11,754 INFO L87 Difference]: Start difference. First operand 824 states and 2208 transitions. Second operand 6 states. [2020-10-11 14:51:11,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:51:11,829 INFO L93 Difference]: Finished difference Result 693 states and 1802 transitions. [2020-10-11 14:51:11,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 14:51:11,830 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-10-11 14:51:11,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:51:11,833 INFO L225 Difference]: With dead ends: 693 [2020-10-11 14:51:11,834 INFO L226 Difference]: Without dead ends: 558 [2020-10-11 14:51:11,834 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-11 14:51:11,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2020-10-11 14:51:11,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2020-10-11 14:51:11,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-10-11 14:51:11,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 1432 transitions. [2020-10-11 14:51:11,847 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 1432 transitions. Word has length 20 [2020-10-11 14:51:11,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:51:11,848 INFO L481 AbstractCegarLoop]: Abstraction has 558 states and 1432 transitions. [2020-10-11 14:51:11,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 14:51:11,848 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 1432 transitions. [2020-10-11 14:51:11,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-11 14:51:11,850 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:51:11,850 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, 1, 1] [2020-10-11 14:51:11,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 14:51:11,850 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:51:11,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:51:11,851 INFO L82 PathProgramCache]: Analyzing trace with hash 913348123, now seen corresponding path program 1 times [2020-10-11 14:51:11,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:51:11,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286000589] [2020-10-11 14:51:11,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:51:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:51:11,943 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 14:51:11,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286000589] [2020-10-11 14:51:11,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:51:11,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 14:51:11,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993835441] [2020-10-11 14:51:11,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 14:51:11,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:51:11,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 14:51:11,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-11 14:51:11,946 INFO L87 Difference]: Start difference. First operand 558 states and 1432 transitions. Second operand 7 states. [2020-10-11 14:51:12,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:51:12,025 INFO L93 Difference]: Finished difference Result 525 states and 1366 transitions. [2020-10-11 14:51:12,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 14:51:12,025 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-11 14:51:12,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:51:12,028 INFO L225 Difference]: With dead ends: 525 [2020-10-11 14:51:12,028 INFO L226 Difference]: Without dead ends: 210 [2020-10-11 14:51:12,030 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-11 14:51:12,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-10-11 14:51:12,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2020-10-11 14:51:12,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-10-11 14:51:12,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 506 transitions. [2020-10-11 14:51:12,035 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 506 transitions. Word has length 23 [2020-10-11 14:51:12,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:51:12,036 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 506 transitions. [2020-10-11 14:51:12,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 14:51:12,036 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 506 transitions. [2020-10-11 14:51:12,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-11 14:51:12,037 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:51:12,037 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, 1, 1, 1, 1, 1] [2020-10-11 14:51:12,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 14:51:12,038 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:51:12,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:51:12,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1499132745, now seen corresponding path program 1 times [2020-10-11 14:51:12,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:51:12,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702404746] [2020-10-11 14:51:12,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:51:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:51:12,126 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 14:51:12,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702404746] [2020-10-11 14:51:12,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:51:12,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 14:51:12,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117503534] [2020-10-11 14:51:12,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 14:51:12,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:51:12,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 14:51:12,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 14:51:12,129 INFO L87 Difference]: Start difference. First operand 210 states and 506 transitions. Second operand 5 states. [2020-10-11 14:51:12,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:51:12,158 INFO L93 Difference]: Finished difference Result 276 states and 656 transitions. [2020-10-11 14:51:12,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 14:51:12,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-11 14:51:12,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:51:12,160 INFO L225 Difference]: With dead ends: 276 [2020-10-11 14:51:12,160 INFO L226 Difference]: Without dead ends: 81 [2020-10-11 14:51:12,160 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-11 14:51:12,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-11 14:51:12,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-10-11 14:51:12,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-11 14:51:12,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 167 transitions. [2020-10-11 14:51:12,163 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 167 transitions. Word has length 26 [2020-10-11 14:51:12,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:51:12,163 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 167 transitions. [2020-10-11 14:51:12,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 14:51:12,164 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 167 transitions. [2020-10-11 14:51:12,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-11 14:51:12,164 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:51:12,165 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, 1, 1, 1, 1, 1] [2020-10-11 14:51:12,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-11 14:51:12,165 INFO L429 AbstractCegarLoop]: === Iteration 12 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:51:12,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:51:12,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1092784959, now seen corresponding path program 2 times [2020-10-11 14:51:12,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:51:12,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391516571] [2020-10-11 14:51:12,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:51:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 14:51:12,304 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 14:51:12,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391516571] [2020-10-11 14:51:12,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 14:51:12,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 14:51:12,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660877338] [2020-10-11 14:51:12,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 14:51:12,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 14:51:12,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 14:51:12,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 14:51:12,306 INFO L87 Difference]: Start difference. First operand 81 states and 167 transitions. Second operand 6 states. [2020-10-11 14:51:12,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 14:51:12,394 INFO L93 Difference]: Finished difference Result 100 states and 202 transitions. [2020-10-11 14:51:12,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 14:51:12,394 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-10-11 14:51:12,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 14:51:12,395 INFO L225 Difference]: With dead ends: 100 [2020-10-11 14:51:12,395 INFO L226 Difference]: Without dead ends: 53 [2020-10-11 14:51:12,396 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-11 14:51:12,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-11 14:51:12,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-11 14:51:12,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-11 14:51:12,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 91 transitions. [2020-10-11 14:51:12,398 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 91 transitions. Word has length 26 [2020-10-11 14:51:12,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 14:51:12,398 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 91 transitions. [2020-10-11 14:51:12,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 14:51:12,398 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 91 transitions. [2020-10-11 14:51:12,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-11 14:51:12,399 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 14:51:12,399 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, 1, 1, 1, 1, 1] [2020-10-11 14:51:12,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-11 14:51:12,401 INFO L429 AbstractCegarLoop]: === Iteration 13 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 14:51:12,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 14:51:12,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1325537017, now seen corresponding path program 3 times [2020-10-11 14:51:12,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 14:51:12,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734707435] [2020-10-11 14:51:12,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 14:51:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 14:51:12,477 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 14:51:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 14:51:12,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 14:51:12,614 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 14:51:12,614 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 14:51:12,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-11 14:51:12,661 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,661 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,663 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,664 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,664 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,664 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,665 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,665 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,665 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,665 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,666 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,666 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,667 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,667 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,667 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,667 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,668 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,668 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,668 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,668 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,668 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,668 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,669 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,669 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,669 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,669 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,670 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,670 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,671 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,671 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,672 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,672 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,676 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,676 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,676 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,677 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,677 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,677 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,677 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,677 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,678 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,678 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,678 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,678 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,678 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,678 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,678 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,678 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,678 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 14:51:12,679 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 14:51:12,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:51:12 BasicIcfg [2020-10-11 14:51:12,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 14:51:12,800 INFO L168 Benchmark]: Toolchain (without parser) took 10741.17 ms. Allocated memory was 250.1 MB in the beginning and 502.8 MB in the end (delta: 252.7 MB). Free memory was 205.4 MB in the beginning and 297.6 MB in the end (delta: -92.1 MB). Peak memory consumption was 160.6 MB. Max. memory is 14.2 GB. [2020-10-11 14:51:12,800 INFO L168 Benchmark]: CDTParser took 1.11 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 14:51:12,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.53 ms. Allocated memory was 250.1 MB in the beginning and 310.9 MB in the end (delta: 60.8 MB). Free memory was 205.4 MB in the beginning and 260.8 MB in the end (delta: -55.4 MB). Peak memory consumption was 30.6 MB. Max. memory is 14.2 GB. [2020-10-11 14:51:12,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.66 ms. Allocated memory is still 310.9 MB. Free memory was 260.8 MB in the beginning and 258.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 14:51:12,802 INFO L168 Benchmark]: Boogie Preprocessor took 37.59 ms. Allocated memory is still 310.9 MB. Free memory was 258.3 MB in the beginning and 255.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 14:51:12,803 INFO L168 Benchmark]: RCFGBuilder took 1955.63 ms. Allocated memory was 310.9 MB in the beginning and 356.0 MB in the end (delta: 45.1 MB). Free memory was 255.8 MB in the beginning and 230.5 MB in the end (delta: 25.3 MB). Peak memory consumption was 99.0 MB. Max. memory is 14.2 GB. [2020-10-11 14:51:12,804 INFO L168 Benchmark]: TraceAbstraction took 7893.33 ms. Allocated memory was 356.0 MB in the beginning and 502.8 MB in the end (delta: 146.8 MB). Free memory was 230.5 MB in the beginning and 297.6 MB in the end (delta: -67.1 MB). Peak memory consumption was 79.7 MB. Max. memory is 14.2 GB. [2020-10-11 14:51:12,808 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.11 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 778.53 ms. Allocated memory was 250.1 MB in the beginning and 310.9 MB in the end (delta: 60.8 MB). Free memory was 205.4 MB in the beginning and 260.8 MB in the end (delta: -55.4 MB). Peak memory consumption was 30.6 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 70.66 ms. Allocated memory is still 310.9 MB. Free memory was 260.8 MB in the beginning and 258.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 37.59 ms. Allocated memory is still 310.9 MB. Free memory was 258.3 MB in the beginning and 255.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 1955.63 ms. Allocated memory was 310.9 MB in the beginning and 356.0 MB in the end (delta: 45.1 MB). Free memory was 255.8 MB in the beginning and 230.5 MB in the end (delta: 25.3 MB). Peak memory consumption was 99.0 MB. Max. memory is 14.2 GB. * TraceAbstraction took 7893.33 ms. Allocated memory was 356.0 MB in the beginning and 502.8 MB in the end (delta: 146.8 MB). Free memory was 230.5 MB in the beginning and 297.6 MB in the end (delta: -67.1 MB). Peak memory consumption was 79.7 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1520 VarBasedMoverChecksPositive, 60 VarBasedMoverChecksNegative, 20 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.0s, 184 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.0s, 122 PlacesBefore, 45 PlacesAfterwards, 111 TransitionsBefore, 33 TransitionsAfterwards, 2432 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 88 TotalNumberOfCompositions, 5758 MoverChecksTotal - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L699] 0 int __unbuffered_cnt = 0; [L701] 0 int __unbuffered_p2_EAX = 0; [L703] 0 int __unbuffered_p3_EAX = 0; [L705] 0 int __unbuffered_p3_EBX = 0; [L707] 0 int a = 0; [L709] 0 int b = 0; [L710] 0 _Bool main$tmp_guard0; [L711] 0 _Bool main$tmp_guard1; [L713] 0 int x = 0; [L715] 0 int y = 0; [L717] 0 int z = 0; [L718] 0 _Bool z$flush_delayed; [L719] 0 int z$mem_tmp; [L720] 0 _Bool z$r_buff0_thd0; [L721] 0 _Bool z$r_buff0_thd1; [L722] 0 _Bool z$r_buff0_thd2; [L723] 0 _Bool z$r_buff0_thd3; [L724] 0 _Bool z$r_buff0_thd4; [L725] 0 _Bool z$r_buff1_thd0; [L726] 0 _Bool z$r_buff1_thd1; [L727] 0 _Bool z$r_buff1_thd2; [L728] 0 _Bool z$r_buff1_thd3; [L729] 0 _Bool z$r_buff1_thd4; [L730] 0 _Bool z$read_delayed; [L731] 0 int *z$read_delayed_var; [L732] 0 int z$w_buff0; [L733] 0 _Bool z$w_buff0_used; [L734] 0 int z$w_buff1; [L735] 0 _Bool z$w_buff1_used; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L843] 0 pthread_t t1061; [L844] FCALL, FORK 0 pthread_create(&t1061, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L845] 0 pthread_t t1062; [L846] FCALL, FORK 0 pthread_create(&t1062, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L847] 0 pthread_t t1063; [L848] FCALL, FORK 0 pthread_create(&t1063, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L849] 0 pthread_t t1064; [L850] FCALL, FORK 0 pthread_create(&t1064, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L799] 4 z$w_buff1 = z$w_buff0 [L800] 4 z$w_buff0 = 1 [L801] 4 z$w_buff1_used = z$w_buff0_used [L802] 4 z$w_buff0_used = (_Bool)1 [L7] COND TRUE 4 !expression [L7] 4 __VERIFIER_error() [L804] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L805] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L806] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L807] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L808] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L809] 4 z$r_buff0_thd4 = (_Bool)1 [L812] 4 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L815] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L818] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L741] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L744] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L749] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L751] 1 return 0; [L756] 2 x = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L759] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L771] 3 y = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L774] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L775] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L776] 3 z$flush_delayed = weak$$choice2 [L777] 3 z$mem_tmp = z [L778] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L778] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L779] EXPR 3 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L779] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0) [L779] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0 [L779] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0) [L779] EXPR 3 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L779] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L780] EXPR 3 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L780] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L781] EXPR 3 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L781] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used) [L781] EXPR 3 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L781] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L782] EXPR 3 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L782] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0) [L782] EXPR 3 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L782] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L783] EXPR 3 weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L783] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L784] EXPR 3 weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L784] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0) [L784] EXPR 3 weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L784] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L785] 3 __unbuffered_p2_EAX = z [L786] EXPR 3 z$flush_delayed ? z$mem_tmp : z [L786] 3 z = z$flush_delayed ? z$mem_tmp : z [L787] 3 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=9, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L792] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L794] 3 return 0; [L764] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L766] 2 return 0; [L821] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L821] EXPR 4 z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z [L821] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L821] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L822] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L822] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L823] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L823] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L824] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L824] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L825] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L825] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L828] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L830] 4 return 0; [L852] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L856] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L856] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L857] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L857] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L858] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L858] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L859] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L859] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L860] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L860] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L863] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=9, weak$$choice2=0, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L7] COND TRUE 0 !expression [L7] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=9, weak$$choice2=0, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 110 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.5s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 443 SDtfs, 438 SDslu, 807 SDs, 0 SdLazy, 236 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2858occurred 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: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 152 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 241 NumberOfCodeBlocks, 241 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 203 ConstructedInterpolants, 0 QuantifiedInterpolants, 13886 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 incorrect! Received shutdown request...