/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/safe016_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:34:01,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:34:01,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:34:01,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:34:01,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:34:01,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:34:01,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:34:01,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:34:01,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:34:01,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:34:01,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:34:01,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:34:01,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:34:01,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:34:01,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:34:01,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:34:01,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:34:01,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:34:01,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:34:01,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:34:01,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:34:01,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:34:01,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:34:01,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:34:01,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:34:01,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:34:01,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:34:01,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:34:01,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:34:01,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:34:01,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:34:01,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:34:01,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:34:01,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:34:01,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:34:01,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:34:01,986 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 [2020-10-15 18:34:02,025 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:34:02,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:34:02,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:34:02,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:34:02,028 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:34:02,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:34:02,028 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:34:02,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:34:02,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:34:02,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:34:02,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:34:02,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:34:02,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:34:02,031 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:34:02,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:34:02,031 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:34:02,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:34:02,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:34:02,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:34:02,032 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:34:02,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:34:02,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:34:02,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:34:02,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:34:02,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:34:02,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:34:02,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:34:02,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:34:02,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:34:02,034 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:34:02,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:34:02,386 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:34:02,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:34:02,392 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:34:02,394 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:34:02,395 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2020-10-15 18:34:02,472 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c26348e5/f07e6bd046904694a4c56cce15fed9ef/FLAGc4dcec4a3 [2020-10-15 18:34:03,060 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:34:03,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2020-10-15 18:34:03,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c26348e5/f07e6bd046904694a4c56cce15fed9ef/FLAGc4dcec4a3 [2020-10-15 18:34:03,298 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c26348e5/f07e6bd046904694a4c56cce15fed9ef [2020-10-15 18:34:03,306 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:34:03,308 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:34:03,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:34:03,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:34:03,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:34:03,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:34:03" (1/1) ... [2020-10-15 18:34:03,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d189d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:03, skipping insertion in model container [2020-10-15 18:34:03,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:34:03" (1/1) ... [2020-10-15 18:34:03,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:34:03,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:34:03,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:34:03,838 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:34:03,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:34:03,975 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:34:03,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:03 WrapperNode [2020-10-15 18:34:03,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:34:03,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:34:03,979 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:34:03,979 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:34:03,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:03" (1/1) ... [2020-10-15 18:34:04,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:03" (1/1) ... [2020-10-15 18:34:04,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:34:04,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:34:04,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:34:04,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:34:04,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:03" (1/1) ... [2020-10-15 18:34:04,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:03" (1/1) ... [2020-10-15 18:34:04,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:03" (1/1) ... [2020-10-15 18:34:04,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:03" (1/1) ... [2020-10-15 18:34:04,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:03" (1/1) ... [2020-10-15 18:34:04,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:03" (1/1) ... [2020-10-15 18:34:04,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:03" (1/1) ... [2020-10-15 18:34:04,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:34:04,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:34:04,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:34:04,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:34:04,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:03" (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 [2020-10-15 18:34:04,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:34:04,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:34:04,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:34:04,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:34:04,120 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:34:04,121 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:34:04,121 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:34:04,121 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:34:04,121 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:34:04,121 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:34:04,121 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-15 18:34:04,126 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-15 18:34:04,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:34:04,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:34:04,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:34:04,128 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:34:04,507 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:34:04,507 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:34:04,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:34:04 BoogieIcfgContainer [2020-10-15 18:34:04,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:34:04,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:34:04,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:34:04,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:34:04,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:34:03" (1/3) ... [2020-10-15 18:34:04,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d3eff51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:34:04, skipping insertion in model container [2020-10-15 18:34:04,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:03" (2/3) ... [2020-10-15 18:34:04,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d3eff51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:34:04, skipping insertion in model container [2020-10-15 18:34:04,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:34:04" (3/3) ... [2020-10-15 18:34:04,519 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2020-10-15 18:34:04,530 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:34:04,531 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:34:04,539 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:34:04,540 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:34:04,569 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,569 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,570 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,570 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,571 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,571 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,572 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,572 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,573 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,573 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,573 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,574 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,574 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,574 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,575 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,575 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,575 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,575 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,576 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,576 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,580 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,580 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,580 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,580 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,589 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,589 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,589 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,590 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,593 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,594 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,596 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,597 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,597 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,597 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:04,610 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 18:34:04,628 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:34:04,628 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:34:04,628 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:34:04,628 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:34:04,629 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:34:04,629 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:34:04,629 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:34:04,629 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:34:04,643 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:34:04,645 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 80 transitions, 180 flow [2020-10-15 18:34:04,648 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 80 transitions, 180 flow [2020-10-15 18:34:04,650 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-10-15 18:34:04,696 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-15 18:34:04,696 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:34:04,702 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-15 18:34:04,705 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-15 18:34:06,246 INFO L132 LiptonReduction]: Checked pairs total: 3057 [2020-10-15 18:34:06,246 INFO L134 LiptonReduction]: Total number of compositions: 63 [2020-10-15 18:34:06,253 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-15 18:34:06,314 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-15 18:34:06,317 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-15 18:34:06,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:34:06,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:06,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:06,330 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:06,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:06,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1118879254, now seen corresponding path program 1 times [2020-10-15 18:34:06,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:06,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319407108] [2020-10-15 18:34:06,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:06,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:06,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319407108] [2020-10-15 18:34:06,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:06,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:34:06,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494336117] [2020-10-15 18:34:06,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 18:34:06,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:06,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 18:34:06,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:34:06,558 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-15 18:34:06,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:06,609 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-15 18:34:06,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 18:34:06,610 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-15 18:34:06,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:06,643 INFO L225 Difference]: With dead ends: 850 [2020-10-15 18:34:06,644 INFO L226 Difference]: Without dead ends: 706 [2020-10-15 18:34:06,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:34:06,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-15 18:34:06,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-15 18:34:06,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-15 18:34:06,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-15 18:34:06,816 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-15 18:34:06,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:06,820 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-15 18:34:06,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 18:34:06,821 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-15 18:34:06,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:34:06,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:06,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:06,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:34:06,825 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:06,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:06,826 INFO L82 PathProgramCache]: Analyzing trace with hash -325524913, now seen corresponding path program 1 times [2020-10-15 18:34:06,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:06,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300241818] [2020-10-15 18:34:06,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:06,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:06,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300241818] [2020-10-15 18:34:06,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:06,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:34:06,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503024095] [2020-10-15 18:34:06,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:34:06,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:06,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:34:06,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:34:06,993 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-15 18:34:07,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:07,056 INFO L93 Difference]: Finished difference Result 802 states and 2662 transitions. [2020-10-15 18:34:07,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:07,057 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 18:34:07,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:07,063 INFO L225 Difference]: With dead ends: 802 [2020-10-15 18:34:07,064 INFO L226 Difference]: Without dead ends: 658 [2020-10-15 18:34:07,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:07,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-10-15 18:34:07,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2020-10-15 18:34:07,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-10-15 18:34:07,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 2230 transitions. [2020-10-15 18:34:07,102 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 2230 transitions. Word has length 11 [2020-10-15 18:34:07,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:07,103 INFO L481 AbstractCegarLoop]: Abstraction has 658 states and 2230 transitions. [2020-10-15 18:34:07,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:34:07,103 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 2230 transitions. [2020-10-15 18:34:07,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:34:07,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:07,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:07,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:34:07,110 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:07,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:07,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1501347001, now seen corresponding path program 1 times [2020-10-15 18:34:07,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:07,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291071550] [2020-10-15 18:34:07,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:07,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:07,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291071550] [2020-10-15 18:34:07,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:07,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:34:07,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069800460] [2020-10-15 18:34:07,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:34:07,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:07,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:34:07,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:34:07,250 INFO L87 Difference]: Start difference. First operand 658 states and 2230 transitions. Second operand 4 states. [2020-10-15 18:34:07,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:07,281 INFO L93 Difference]: Finished difference Result 718 states and 2348 transitions. [2020-10-15 18:34:07,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:07,282 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 18:34:07,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:07,287 INFO L225 Difference]: With dead ends: 718 [2020-10-15 18:34:07,287 INFO L226 Difference]: Without dead ends: 598 [2020-10-15 18:34:07,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:07,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-10-15 18:34:07,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2020-10-15 18:34:07,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2020-10-15 18:34:07,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1992 transitions. [2020-10-15 18:34:07,310 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1992 transitions. Word has length 12 [2020-10-15 18:34:07,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:07,311 INFO L481 AbstractCegarLoop]: Abstraction has 598 states and 1992 transitions. [2020-10-15 18:34:07,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:34:07,311 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1992 transitions. [2020-10-15 18:34:07,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:34:07,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:07,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:07,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:34:07,313 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:07,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:07,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1422147839, now seen corresponding path program 1 times [2020-10-15 18:34:07,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:07,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057211596] [2020-10-15 18:34:07,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:07,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:07,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057211596] [2020-10-15 18:34:07,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:07,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:34:07,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117289468] [2020-10-15 18:34:07,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:34:07,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:07,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:34:07,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:07,370 INFO L87 Difference]: Start difference. First operand 598 states and 1992 transitions. Second operand 5 states. [2020-10-15 18:34:07,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:07,414 INFO L93 Difference]: Finished difference Result 928 states and 3061 transitions. [2020-10-15 18:34:07,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:07,414 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 18:34:07,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:07,419 INFO L225 Difference]: With dead ends: 928 [2020-10-15 18:34:07,419 INFO L226 Difference]: Without dead ends: 550 [2020-10-15 18:34:07,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:34:07,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-10-15 18:34:07,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2020-10-15 18:34:07,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-10-15 18:34:07,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 1794 transitions. [2020-10-15 18:34:07,440 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 1794 transitions. Word has length 13 [2020-10-15 18:34:07,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:07,440 INFO L481 AbstractCegarLoop]: Abstraction has 550 states and 1794 transitions. [2020-10-15 18:34:07,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:34:07,441 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 1794 transitions. [2020-10-15 18:34:07,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:34:07,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:07,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:07,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:34:07,442 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:07,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:07,443 INFO L82 PathProgramCache]: Analyzing trace with hash 702868169, now seen corresponding path program 2 times [2020-10-15 18:34:07,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:07,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124593974] [2020-10-15 18:34:07,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:07,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:07,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124593974] [2020-10-15 18:34:07,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:07,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:34:07,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964461177] [2020-10-15 18:34:07,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:34:07,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:07,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:34:07,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:34:07,489 INFO L87 Difference]: Start difference. First operand 550 states and 1794 transitions. Second operand 4 states. [2020-10-15 18:34:07,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:07,513 INFO L93 Difference]: Finished difference Result 586 states and 1860 transitions. [2020-10-15 18:34:07,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:07,514 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 18:34:07,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:07,518 INFO L225 Difference]: With dead ends: 586 [2020-10-15 18:34:07,518 INFO L226 Difference]: Without dead ends: 514 [2020-10-15 18:34:07,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:07,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-15 18:34:07,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-10-15 18:34:07,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-15 18:34:07,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 1656 transitions. [2020-10-15 18:34:07,537 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 1656 transitions. Word has length 13 [2020-10-15 18:34:07,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:07,537 INFO L481 AbstractCegarLoop]: Abstraction has 514 states and 1656 transitions. [2020-10-15 18:34:07,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:34:07,537 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 1656 transitions. [2020-10-15 18:34:07,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:34:07,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:07,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:07,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:34:07,539 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:07,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:07,540 INFO L82 PathProgramCache]: Analyzing trace with hash -464753782, now seen corresponding path program 1 times [2020-10-15 18:34:07,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:07,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595002762] [2020-10-15 18:34:07,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:07,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:07,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595002762] [2020-10-15 18:34:07,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:07,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:34:07,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818275202] [2020-10-15 18:34:07,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:34:07,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:07,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:34:07,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:34:07,628 INFO L87 Difference]: Start difference. First operand 514 states and 1656 transitions. Second operand 4 states. [2020-10-15 18:34:07,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:07,667 INFO L93 Difference]: Finished difference Result 776 states and 2379 transitions. [2020-10-15 18:34:07,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:07,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-15 18:34:07,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:07,672 INFO L225 Difference]: With dead ends: 776 [2020-10-15 18:34:07,672 INFO L226 Difference]: Without dead ends: 550 [2020-10-15 18:34:07,672 INFO L677 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 [2020-10-15 18:34:07,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-10-15 18:34:07,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 478. [2020-10-15 18:34:07,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-10-15 18:34:07,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 1450 transitions. [2020-10-15 18:34:07,689 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 1450 transitions. Word has length 14 [2020-10-15 18:34:07,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:07,689 INFO L481 AbstractCegarLoop]: Abstraction has 478 states and 1450 transitions. [2020-10-15 18:34:07,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:34:07,690 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 1450 transitions. [2020-10-15 18:34:07,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:34:07,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:07,691 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:07,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:34:07,691 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:07,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:07,692 INFO L82 PathProgramCache]: Analyzing trace with hash -281370534, now seen corresponding path program 1 times [2020-10-15 18:34:07,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:07,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768399846] [2020-10-15 18:34:07,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:07,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:07,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768399846] [2020-10-15 18:34:07,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:07,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:34:07,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10954883] [2020-10-15 18:34:07,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:34:07,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:07,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:34:07,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:07,741 INFO L87 Difference]: Start difference. First operand 478 states and 1450 transitions. Second operand 5 states. [2020-10-15 18:34:07,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:07,790 INFO L93 Difference]: Finished difference Result 668 states and 1981 transitions. [2020-10-15 18:34:07,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:34:07,790 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-15 18:34:07,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:07,793 INFO L225 Difference]: With dead ends: 668 [2020-10-15 18:34:07,793 INFO L226 Difference]: Without dead ends: 326 [2020-10-15 18:34:07,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:34:07,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-15 18:34:07,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2020-10-15 18:34:07,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-10-15 18:34:07,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 955 transitions. [2020-10-15 18:34:07,804 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 955 transitions. Word has length 14 [2020-10-15 18:34:07,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:07,804 INFO L481 AbstractCegarLoop]: Abstraction has 326 states and 955 transitions. [2020-10-15 18:34:07,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:34:07,805 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 955 transitions. [2020-10-15 18:34:07,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:34:07,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:07,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:07,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:34:07,806 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:07,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:07,807 INFO L82 PathProgramCache]: Analyzing trace with hash 807678122, now seen corresponding path program 1 times [2020-10-15 18:34:07,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:07,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514967820] [2020-10-15 18:34:07,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:07,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:07,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514967820] [2020-10-15 18:34:07,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:07,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:34:07,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170430887] [2020-10-15 18:34:07,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:34:07,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:07,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:34:07,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:34:07,859 INFO L87 Difference]: Start difference. First operand 326 states and 955 transitions. Second operand 4 states. [2020-10-15 18:34:07,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:07,897 INFO L93 Difference]: Finished difference Result 390 states and 1053 transitions. [2020-10-15 18:34:07,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:07,897 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 18:34:07,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:07,900 INFO L225 Difference]: With dead ends: 390 [2020-10-15 18:34:07,900 INFO L226 Difference]: Without dead ends: 293 [2020-10-15 18:34:07,900 INFO L677 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 [2020-10-15 18:34:07,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-15 18:34:07,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2020-10-15 18:34:07,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-10-15 18:34:07,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 804 transitions. [2020-10-15 18:34:07,910 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 804 transitions. Word has length 15 [2020-10-15 18:34:07,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:07,910 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 804 transitions. [2020-10-15 18:34:07,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:34:07,911 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 804 transitions. [2020-10-15 18:34:07,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 18:34:07,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:07,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:07,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:34:07,912 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:07,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:07,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1481069530, now seen corresponding path program 1 times [2020-10-15 18:34:07,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:07,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782460482] [2020-10-15 18:34:07,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:07,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:07,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782460482] [2020-10-15 18:34:07,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:07,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:34:07,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67533850] [2020-10-15 18:34:07,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:34:07,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:07,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:34:07,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:07,969 INFO L87 Difference]: Start difference. First operand 293 states and 804 transitions. Second operand 5 states. [2020-10-15 18:34:08,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:08,016 INFO L93 Difference]: Finished difference Result 296 states and 728 transitions. [2020-10-15 18:34:08,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:34:08,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-15 18:34:08,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:08,018 INFO L225 Difference]: With dead ends: 296 [2020-10-15 18:34:08,018 INFO L226 Difference]: Without dead ends: 218 [2020-10-15 18:34:08,019 INFO L677 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 [2020-10-15 18:34:08,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-15 18:34:08,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-15 18:34:08,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-15 18:34:08,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 525 transitions. [2020-10-15 18:34:08,027 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 525 transitions. Word has length 16 [2020-10-15 18:34:08,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:08,027 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 525 transitions. [2020-10-15 18:34:08,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:34:08,027 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 525 transitions. [2020-10-15 18:34:08,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:34:08,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:08,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:08,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 18:34:08,029 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:08,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:08,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1331262194, now seen corresponding path program 1 times [2020-10-15 18:34:08,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:08,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483431661] [2020-10-15 18:34:08,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:08,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:08,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483431661] [2020-10-15 18:34:08,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:08,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:34:08,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189011555] [2020-10-15 18:34:08,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:34:08,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:08,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:34:08,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:34:08,109 INFO L87 Difference]: Start difference. First operand 218 states and 525 transitions. Second operand 6 states. [2020-10-15 18:34:08,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:08,174 INFO L93 Difference]: Finished difference Result 196 states and 441 transitions. [2020-10-15 18:34:08,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:34:08,175 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-15 18:34:08,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:08,176 INFO L225 Difference]: With dead ends: 196 [2020-10-15 18:34:08,176 INFO L226 Difference]: Without dead ends: 157 [2020-10-15 18:34:08,177 INFO L677 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 [2020-10-15 18:34:08,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-15 18:34:08,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2020-10-15 18:34:08,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-15 18:34:08,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 352 transitions. [2020-10-15 18:34:08,182 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 352 transitions. Word has length 17 [2020-10-15 18:34:08,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:08,183 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 352 transitions. [2020-10-15 18:34:08,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:34:08,184 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 352 transitions. [2020-10-15 18:34:08,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:34:08,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:08,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:08,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 18:34:08,185 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:08,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:08,185 INFO L82 PathProgramCache]: Analyzing trace with hash 461519417, now seen corresponding path program 1 times [2020-10-15 18:34:08,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:08,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745649426] [2020-10-15 18:34:08,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:08,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:08,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745649426] [2020-10-15 18:34:08,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:08,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:34:08,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614793224] [2020-10-15 18:34:08,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:34:08,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:08,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:34:08,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:08,237 INFO L87 Difference]: Start difference. First operand 157 states and 352 transitions. Second operand 5 states. [2020-10-15 18:34:08,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:08,269 INFO L93 Difference]: Finished difference Result 197 states and 430 transitions. [2020-10-15 18:34:08,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:34:08,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-15 18:34:08,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:08,270 INFO L225 Difference]: With dead ends: 197 [2020-10-15 18:34:08,271 INFO L226 Difference]: Without dead ends: 148 [2020-10-15 18:34:08,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:34:08,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-15 18:34:08,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2020-10-15 18:34:08,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-15 18:34:08,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 314 transitions. [2020-10-15 18:34:08,276 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 314 transitions. Word has length 19 [2020-10-15 18:34:08,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:08,277 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 314 transitions. [2020-10-15 18:34:08,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:34:08,277 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 314 transitions. [2020-10-15 18:34:08,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:34:08,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:08,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:08,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 18:34:08,278 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:08,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:08,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1319799301, now seen corresponding path program 2 times [2020-10-15 18:34:08,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:08,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054592583] [2020-10-15 18:34:08,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:08,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:08,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054592583] [2020-10-15 18:34:08,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:08,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 18:34:08,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993737536] [2020-10-15 18:34:08,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:34:08,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:08,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:34:08,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:34:08,391 INFO L87 Difference]: Start difference. First operand 144 states and 314 transitions. Second operand 7 states. [2020-10-15 18:34:08,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:08,462 INFO L93 Difference]: Finished difference Result 133 states and 290 transitions. [2020-10-15 18:34:08,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 18:34:08,462 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 18:34:08,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:08,463 INFO L225 Difference]: With dead ends: 133 [2020-10-15 18:34:08,463 INFO L226 Difference]: Without dead ends: 52 [2020-10-15 18:34:08,463 INFO L677 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 [2020-10-15 18:34:08,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-15 18:34:08,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-15 18:34:08,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-15 18:34:08,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-10-15 18:34:08,465 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 19 [2020-10-15 18:34:08,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:08,466 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-10-15 18:34:08,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:34:08,466 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-10-15 18:34:08,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:34:08,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:08,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:08,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 18:34:08,467 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:08,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:08,467 INFO L82 PathProgramCache]: Analyzing trace with hash 2139262285, now seen corresponding path program 1 times [2020-10-15 18:34:08,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:08,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316077992] [2020-10-15 18:34:08,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:08,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:08,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316077992] [2020-10-15 18:34:08,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:08,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:34:08,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645724239] [2020-10-15 18:34:08,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:34:08,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:08,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:34:08,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:34:08,525 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 4 states. [2020-10-15 18:34:08,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:08,539 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-10-15 18:34:08,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:34:08,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-15 18:34:08,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:08,540 INFO L225 Difference]: With dead ends: 51 [2020-10-15 18:34:08,540 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:34:08,540 INFO L677 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 [2020-10-15 18:34:08,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:34:08,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:34:08,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:34:08,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:34:08,541 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-15 18:34:08,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:08,541 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:34:08,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:34:08,541 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:34:08,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:34:08,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 18:34:08,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:34:08 BasicIcfg [2020-10-15 18:34:08,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:34:08,547 INFO L168 Benchmark]: Toolchain (without parser) took 5239.15 ms. Allocated memory was 247.5 MB in the beginning and 433.1 MB in the end (delta: 185.6 MB). Free memory was 199.2 MB in the beginning and 333.7 MB in the end (delta: -134.5 MB). Peak memory consumption was 51.1 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:08,548 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 247.5 MB. Free memory is still 221.3 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:34:08,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.27 ms. Allocated memory was 247.5 MB in the beginning and 301.5 MB in the end (delta: 54.0 MB). Free memory was 199.2 MB in the beginning and 254.8 MB in the end (delta: -55.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:08,550 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.69 ms. Allocated memory is still 301.5 MB. Free memory was 254.8 MB in the beginning and 252.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:08,551 INFO L168 Benchmark]: Boogie Preprocessor took 26.60 ms. Allocated memory is still 301.5 MB. Free memory was 252.3 MB in the beginning and 249.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:08,551 INFO L168 Benchmark]: RCFGBuilder took 456.86 ms. Allocated memory is still 301.5 MB. Free memory was 249.8 MB in the beginning and 225.4 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:08,552 INFO L168 Benchmark]: TraceAbstraction took 4033.53 ms. Allocated memory was 301.5 MB in the beginning and 433.1 MB in the end (delta: 131.6 MB). Free memory was 225.4 MB in the beginning and 333.7 MB in the end (delta: -108.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:08,556 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 247.5 MB. Free memory is still 221.3 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 669.27 ms. Allocated memory was 247.5 MB in the beginning and 301.5 MB in the end (delta: 54.0 MB). Free memory was 199.2 MB in the beginning and 254.8 MB in the end (delta: -55.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.69 ms. Allocated memory is still 301.5 MB. Free memory was 254.8 MB in the beginning and 252.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.60 ms. Allocated memory is still 301.5 MB. Free memory was 252.3 MB in the beginning and 249.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 456.86 ms. Allocated memory is still 301.5 MB. Free memory was 249.8 MB in the beginning and 225.4 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4033.53 ms. Allocated memory was 301.5 MB in the beginning and 433.1 MB in the end (delta: 131.6 MB). Free memory was 225.4 MB in the beginning and 333.7 MB in the end (delta: -108.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1223 VarBasedMoverChecksPositive, 53 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 103 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 91 PlacesBefore, 39 PlacesAfterwards, 80 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 63 TotalNumberOfCompositions, 3057 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 345 SDtfs, 327 SDslu, 580 SDs, 0 SdLazy, 232 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 76 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 7691 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...