/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-17 23:16:39,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-17 23:16:39,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-17 23:16:39,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-17 23:16:39,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-17 23:16:39,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-17 23:16:39,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-17 23:16:39,253 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-17 23:16:39,282 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-17 23:16:39,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-17 23:16:39,283 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-17 23:16:39,283 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-17 23:16:39,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-17 23:16:39,284 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-17 23:16:39,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-17 23:16:39,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-17 23:16:39,285 INFO L138 SettingsManager]: * Use SBE=true [2022-01-17 23:16:39,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-17 23:16:39,286 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-17 23:16:39,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-17 23:16:39,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-17 23:16:39,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-17 23:16:39,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-17 23:16:39,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-17 23:16:39,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-17 23:16:39,287 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-17 23:16:39,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-17 23:16:39,287 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-17 23:16:39,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-17 23:16:39,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-17 23:16:39,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-17 23:16:39,287 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-17 23:16:39,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-17 23:16:39,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:16:39,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-17 23:16:39,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-17 23:16:39,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-17 23:16:39,288 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-17 23:16:39,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-17 23:16:39,288 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-17 23:16:39,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-17 23:16:39,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-17 23:16:39,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-17 23:16:39,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-17 23:16:39,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-17 23:16:39,550 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-17 23:16:39,551 INFO L275 PluginConnector]: CDTParser initialized [2022-01-17 23:16:39,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-17 23:16:39,602 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33e766d4c/7df1a0ed8c0d42f3950d86e1baba0032/FLAGb7794dd2b [2022-01-17 23:16:40,086 INFO L306 CDTParser]: Found 1 translation units. [2022-01-17 23:16:40,097 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-17 23:16:40,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33e766d4c/7df1a0ed8c0d42f3950d86e1baba0032/FLAGb7794dd2b [2022-01-17 23:16:40,403 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33e766d4c/7df1a0ed8c0d42f3950d86e1baba0032 [2022-01-17 23:16:40,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-17 23:16:40,406 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-17 23:16:40,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-17 23:16:40,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-17 23:16:40,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-17 23:16:40,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:16:40" (1/1) ... [2022-01-17 23:16:40,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e6e8f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:40, skipping insertion in model container [2022-01-17 23:16:40,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:16:40" (1/1) ... [2022-01-17 23:16:40,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-17 23:16:40,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-17 23:16:40,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-01-17 23:16:40,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:16:40,807 INFO L203 MainTranslator]: Completed pre-run [2022-01-17 23:16:40,818 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-01-17 23:16:40,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:16:40,890 INFO L208 MainTranslator]: Completed translation [2022-01-17 23:16:40,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:40 WrapperNode [2022-01-17 23:16:40,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-17 23:16:40,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-17 23:16:40,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-17 23:16:40,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-17 23:16:40,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:40" (1/1) ... [2022-01-17 23:16:40,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:40" (1/1) ... [2022-01-17 23:16:40,948 INFO L137 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-01-17 23:16:40,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-17 23:16:40,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-17 23:16:40,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-17 23:16:40,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-17 23:16:40,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:40" (1/1) ... [2022-01-17 23:16:40,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:40" (1/1) ... [2022-01-17 23:16:40,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:40" (1/1) ... [2022-01-17 23:16:40,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:40" (1/1) ... [2022-01-17 23:16:40,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:40" (1/1) ... [2022-01-17 23:16:40,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:40" (1/1) ... [2022-01-17 23:16:40,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:40" (1/1) ... [2022-01-17 23:16:40,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-17 23:16:40,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-17 23:16:40,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-17 23:16:40,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-17 23:16:40,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:40" (1/1) ... [2022-01-17 23:16:41,002 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:16:41,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:16:41,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-17 23:16:41,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-17 23:16:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-17 23:16:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-17 23:16:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-17 23:16:41,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-17 23:16:41,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-17 23:16:41,076 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-17 23:16:41,076 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-17 23:16:41,076 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-17 23:16:41,076 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-17 23:16:41,077 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-01-17 23:16:41,077 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-01-17 23:16:41,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-17 23:16:41,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-17 23:16:41,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-17 23:16:41,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-17 23:16:41,078 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-17 23:16:41,193 INFO L234 CfgBuilder]: Building ICFG [2022-01-17 23:16:41,195 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-17 23:16:41,351 INFO L275 CfgBuilder]: Performing block encoding [2022-01-17 23:16:41,356 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-17 23:16:41,357 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-17 23:16:41,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:16:41 BoogieIcfgContainer [2022-01-17 23:16:41,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-17 23:16:41,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-17 23:16:41,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-17 23:16:41,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-17 23:16:41,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.01 11:16:40" (1/3) ... [2022-01-17 23:16:41,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b352719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:16:41, skipping insertion in model container [2022-01-17 23:16:41,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:40" (2/3) ... [2022-01-17 23:16:41,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b352719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:16:41, skipping insertion in model container [2022-01-17 23:16:41,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:16:41" (3/3) ... [2022-01-17 23:16:41,367 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-17 23:16:41,372 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-17 23:16:41,372 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-17 23:16:41,372 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-17 23:16:41,372 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-17 23:16:41,400 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,400 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,400 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,401 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,401 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,401 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,401 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,401 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,402 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,402 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,402 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,402 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,402 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,402 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,403 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,403 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,403 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,403 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,403 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,403 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,404 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,404 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,404 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,404 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,404 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,405 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,405 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,405 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,405 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,405 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,405 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,405 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,406 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,406 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,406 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,406 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,409 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,409 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,410 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,410 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,412 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,412 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,412 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,412 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,413 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,413 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,413 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,414 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:41,414 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-17 23:16:41,445 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-17 23:16:41,451 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-17 23:16:41,451 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-17 23:16:41,461 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 92 transitions, 199 flow [2022-01-17 23:16:41,802 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:41,828 INFO L276 IsEmpty]: Start isEmpty. Operand has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:41,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-17 23:16:41,866 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:41,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:16:41,867 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:41,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:41,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1011825075, now seen corresponding path program 1 times [2022-01-17 23:16:41,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:41,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517580980] [2022-01-17 23:16:41,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:41,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:42,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:42,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:42,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517580980] [2022-01-17 23:16:42,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517580980] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:42,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:42,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:16:42,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71946169] [2022-01-17 23:16:42,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:42,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:16:42,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:42,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:16:42,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:16:42,442 INFO L87 Difference]: Start difference. First operand has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:42,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:42,790 INFO L93 Difference]: Finished difference Result 7620 states and 26086 transitions. [2022-01-17 23:16:42,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:16:42,793 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-17 23:16:42,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:42,853 INFO L225 Difference]: With dead ends: 7620 [2022-01-17 23:16:42,854 INFO L226 Difference]: Without dead ends: 5562 [2022-01-17 23:16:42,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:16:42,864 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 117 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:42,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 448 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:16:42,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5562 states. [2022-01-17 23:16:43,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5562 to 5562. [2022-01-17 23:16:43,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5562 states, 5561 states have (on average 3.4132350296709224) internal successors, (18981), 5561 states have internal predecessors, (18981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:43,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5562 states to 5562 states and 18981 transitions. [2022-01-17 23:16:43,246 INFO L78 Accepts]: Start accepts. Automaton has 5562 states and 18981 transitions. Word has length 55 [2022-01-17 23:16:43,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:43,248 INFO L470 AbstractCegarLoop]: Abstraction has 5562 states and 18981 transitions. [2022-01-17 23:16:43,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:43,249 INFO L276 IsEmpty]: Start isEmpty. Operand 5562 states and 18981 transitions. [2022-01-17 23:16:43,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-17 23:16:43,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:43,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:16:43,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-17 23:16:43,315 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:43,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:43,318 INFO L85 PathProgramCache]: Analyzing trace with hash -297709268, now seen corresponding path program 1 times [2022-01-17 23:16:43,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:43,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339013816] [2022-01-17 23:16:43,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:43,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:43,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:43,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:43,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339013816] [2022-01-17 23:16:43,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339013816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:43,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:43,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:16:43,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880998547] [2022-01-17 23:16:43,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:43,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:16:43,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:43,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:16:43,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:16:43,539 INFO L87 Difference]: Start difference. First operand 5562 states and 18981 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:43,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:43,803 INFO L93 Difference]: Finished difference Result 10330 states and 34747 transitions. [2022-01-17 23:16:43,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:16:43,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-01-17 23:16:43,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:43,855 INFO L225 Difference]: With dead ends: 10330 [2022-01-17 23:16:43,855 INFO L226 Difference]: Without dead ends: 7730 [2022-01-17 23:16:43,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:16:43,860 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 120 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:43,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 506 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:16:43,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7730 states. [2022-01-17 23:16:44,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7730 to 6406. [2022-01-17 23:16:44,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6406 states, 6405 states have (on average 3.3723653395784545) internal successors, (21600), 6405 states have internal predecessors, (21600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:44,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6406 states to 6406 states and 21600 transitions. [2022-01-17 23:16:44,167 INFO L78 Accepts]: Start accepts. Automaton has 6406 states and 21600 transitions. Word has length 57 [2022-01-17 23:16:44,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:44,169 INFO L470 AbstractCegarLoop]: Abstraction has 6406 states and 21600 transitions. [2022-01-17 23:16:44,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:44,170 INFO L276 IsEmpty]: Start isEmpty. Operand 6406 states and 21600 transitions. [2022-01-17 23:16:44,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-17 23:16:44,185 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:44,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:16:44,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-17 23:16:44,186 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:44,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:44,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1969054478, now seen corresponding path program 1 times [2022-01-17 23:16:44,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:44,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432173087] [2022-01-17 23:16:44,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:44,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:44,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:44,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:44,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432173087] [2022-01-17 23:16:44,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432173087] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:44,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:44,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:16:44,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123065277] [2022-01-17 23:16:44,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:44,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:16:44,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:44,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:16:44,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:16:44,335 INFO L87 Difference]: Start difference. First operand 6406 states and 21600 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:44,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:44,470 INFO L93 Difference]: Finished difference Result 6994 states and 23441 transitions. [2022-01-17 23:16:44,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:16:44,471 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-17 23:16:44,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:44,511 INFO L225 Difference]: With dead ends: 6994 [2022-01-17 23:16:44,511 INFO L226 Difference]: Without dead ends: 6014 [2022-01-17 23:16:44,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:16:44,517 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 95 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:44,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 438 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:44,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6014 states. [2022-01-17 23:16:44,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6014 to 5582. [2022-01-17 23:16:44,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5582 states, 5581 states have (on average 3.3717971689661352) internal successors, (18818), 5581 states have internal predecessors, (18818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:44,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5582 states to 5582 states and 18818 transitions. [2022-01-17 23:16:44,787 INFO L78 Accepts]: Start accepts. Automaton has 5582 states and 18818 transitions. Word has length 58 [2022-01-17 23:16:44,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:44,788 INFO L470 AbstractCegarLoop]: Abstraction has 5582 states and 18818 transitions. [2022-01-17 23:16:44,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:44,788 INFO L276 IsEmpty]: Start isEmpty. Operand 5582 states and 18818 transitions. [2022-01-17 23:16:44,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-17 23:16:44,802 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:44,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:16:44,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-17 23:16:44,803 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:44,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:44,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1126678965, now seen corresponding path program 1 times [2022-01-17 23:16:44,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:44,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369073855] [2022-01-17 23:16:44,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:44,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:45,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:45,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:45,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369073855] [2022-01-17 23:16:45,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369073855] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:45,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:45,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:16:45,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188239346] [2022-01-17 23:16:45,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:45,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:16:45,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:45,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:16:45,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:16:45,018 INFO L87 Difference]: Start difference. First operand 5582 states and 18818 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:45,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:45,263 INFO L93 Difference]: Finished difference Result 8004 states and 26563 transitions. [2022-01-17 23:16:45,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-17 23:16:45,264 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-17 23:16:45,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:45,289 INFO L225 Difference]: With dead ends: 8004 [2022-01-17 23:16:45,290 INFO L226 Difference]: Without dead ends: 6729 [2022-01-17 23:16:45,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:16:45,291 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 150 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:45,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 704 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:16:45,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6729 states. [2022-01-17 23:16:45,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6729 to 4987. [2022-01-17 23:16:45,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4987 states, 4986 states have (on average 3.344765342960289) internal successors, (16677), 4986 states have internal predecessors, (16677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:45,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4987 states to 4987 states and 16677 transitions. [2022-01-17 23:16:45,443 INFO L78 Accepts]: Start accepts. Automaton has 4987 states and 16677 transitions. Word has length 59 [2022-01-17 23:16:45,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:45,443 INFO L470 AbstractCegarLoop]: Abstraction has 4987 states and 16677 transitions. [2022-01-17 23:16:45,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:45,443 INFO L276 IsEmpty]: Start isEmpty. Operand 4987 states and 16677 transitions. [2022-01-17 23:16:45,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-17 23:16:45,456 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:45,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:16:45,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-17 23:16:45,456 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:45,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:45,457 INFO L85 PathProgramCache]: Analyzing trace with hash -315138131, now seen corresponding path program 1 times [2022-01-17 23:16:45,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:45,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927485847] [2022-01-17 23:16:45,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:45,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:45,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:45,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:45,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927485847] [2022-01-17 23:16:45,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927485847] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:45,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:45,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:16:45,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121756451] [2022-01-17 23:16:45,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:45,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:16:45,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:45,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:16:45,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:16:45,622 INFO L87 Difference]: Start difference. First operand 4987 states and 16677 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:45,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:45,746 INFO L93 Difference]: Finished difference Result 6271 states and 20671 transitions. [2022-01-17 23:16:45,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:16:45,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-17 23:16:45,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:45,762 INFO L225 Difference]: With dead ends: 6271 [2022-01-17 23:16:45,762 INFO L226 Difference]: Without dead ends: 4476 [2022-01-17 23:16:45,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:16:45,763 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 141 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:45,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 359 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:45,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4476 states. [2022-01-17 23:16:45,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4476 to 4476. [2022-01-17 23:16:45,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4476 states, 4475 states have (on average 3.2715083798882683) internal successors, (14640), 4475 states have internal predecessors, (14640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:45,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4476 states to 4476 states and 14640 transitions. [2022-01-17 23:16:45,876 INFO L78 Accepts]: Start accepts. Automaton has 4476 states and 14640 transitions. Word has length 60 [2022-01-17 23:16:45,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:45,877 INFO L470 AbstractCegarLoop]: Abstraction has 4476 states and 14640 transitions. [2022-01-17 23:16:45,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:45,877 INFO L276 IsEmpty]: Start isEmpty. Operand 4476 states and 14640 transitions. [2022-01-17 23:16:45,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-17 23:16:45,888 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:45,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:16:45,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-17 23:16:45,889 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:45,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:45,889 INFO L85 PathProgramCache]: Analyzing trace with hash -994182806, now seen corresponding path program 1 times [2022-01-17 23:16:45,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:45,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296553444] [2022-01-17 23:16:45,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:45,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:45,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:45,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:45,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296553444] [2022-01-17 23:16:45,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296553444] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:45,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:45,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:16:45,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164499257] [2022-01-17 23:16:45,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:45,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:16:45,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:45,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:16:45,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:16:45,964 INFO L87 Difference]: Start difference. First operand 4476 states and 14640 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:46,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:46,078 INFO L93 Difference]: Finished difference Result 4602 states and 14640 transitions. [2022-01-17 23:16:46,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-17 23:16:46,079 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-17 23:16:46,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:46,090 INFO L225 Difference]: With dead ends: 4602 [2022-01-17 23:16:46,090 INFO L226 Difference]: Without dead ends: 3132 [2022-01-17 23:16:46,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-17 23:16:46,091 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 233 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:46,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 429 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:46,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3132 states. [2022-01-17 23:16:46,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3132 to 3132. [2022-01-17 23:16:46,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 3.115298626636857) internal successors, (9754), 3131 states have internal predecessors, (9754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:46,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 9754 transitions. [2022-01-17 23:16:46,176 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 9754 transitions. Word has length 61 [2022-01-17 23:16:46,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:46,177 INFO L470 AbstractCegarLoop]: Abstraction has 3132 states and 9754 transitions. [2022-01-17 23:16:46,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:46,177 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 9754 transitions. [2022-01-17 23:16:46,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-17 23:16:46,184 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:46,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:16:46,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-17 23:16:46,184 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:46,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:46,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1571184457, now seen corresponding path program 1 times [2022-01-17 23:16:46,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:46,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891032492] [2022-01-17 23:16:46,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:46,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:46,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:46,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891032492] [2022-01-17 23:16:46,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891032492] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:46,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:46,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:16:46,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538940923] [2022-01-17 23:16:46,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:46,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:16:46,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:46,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:16:46,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:16:46,279 INFO L87 Difference]: Start difference. First operand 3132 states and 9754 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:46,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:46,420 INFO L93 Difference]: Finished difference Result 2592 states and 7900 transitions. [2022-01-17 23:16:46,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-17 23:16:46,421 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-17 23:16:46,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:46,426 INFO L225 Difference]: With dead ends: 2592 [2022-01-17 23:16:46,426 INFO L226 Difference]: Without dead ends: 1728 [2022-01-17 23:16:46,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:16:46,427 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 249 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:46,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 403 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:16:46,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2022-01-17 23:16:46,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1680. [2022-01-17 23:16:46,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1680 states, 1679 states have (on average 2.969029184038118) internal successors, (4985), 1679 states have internal predecessors, (4985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:46,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 4985 transitions. [2022-01-17 23:16:46,469 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 4985 transitions. Word has length 63 [2022-01-17 23:16:46,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:46,469 INFO L470 AbstractCegarLoop]: Abstraction has 1680 states and 4985 transitions. [2022-01-17 23:16:46,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:46,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 4985 transitions. [2022-01-17 23:16:46,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-17 23:16:46,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:46,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:16:46,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-17 23:16:46,474 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:46,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:46,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1267708359, now seen corresponding path program 1 times [2022-01-17 23:16:46,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:46,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828727518] [2022-01-17 23:16:46,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:46,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:46,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:46,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:46,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828727518] [2022-01-17 23:16:46,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828727518] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:46,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:46,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:16:46,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917480262] [2022-01-17 23:16:46,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:46,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:16:46,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:46,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:16:46,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:16:46,572 INFO L87 Difference]: Start difference. First operand 1680 states and 4985 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:46,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:46,704 INFO L93 Difference]: Finished difference Result 2557 states and 7578 transitions. [2022-01-17 23:16:46,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:16:46,704 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-01-17 23:16:46,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:46,709 INFO L225 Difference]: With dead ends: 2557 [2022-01-17 23:16:46,709 INFO L226 Difference]: Without dead ends: 1337 [2022-01-17 23:16:46,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:16:46,710 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 138 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:46,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 530 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:16:46,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2022-01-17 23:16:46,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1232. [2022-01-17 23:16:46,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1231 states have (on average 2.9025182778229084) internal successors, (3573), 1231 states have internal predecessors, (3573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:46,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 3573 transitions. [2022-01-17 23:16:46,739 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 3573 transitions. Word has length 67 [2022-01-17 23:16:46,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:46,739 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 3573 transitions. [2022-01-17 23:16:46,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:46,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 3573 transitions. [2022-01-17 23:16:46,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-17 23:16:46,742 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:46,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:16:46,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-17 23:16:46,743 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:46,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:46,744 INFO L85 PathProgramCache]: Analyzing trace with hash 680598151, now seen corresponding path program 2 times [2022-01-17 23:16:46,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:46,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610270664] [2022-01-17 23:16:46,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:46,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:46,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:46,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610270664] [2022-01-17 23:16:46,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610270664] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:46,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:46,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:16:46,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831078744] [2022-01-17 23:16:46,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:46,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:16:46,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:46,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:16:46,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:16:46,839 INFO L87 Difference]: Start difference. First operand 1232 states and 3573 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:46,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:46,939 INFO L93 Difference]: Finished difference Result 1980 states and 5779 transitions. [2022-01-17 23:16:46,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:16:46,940 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-01-17 23:16:46,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:46,944 INFO L225 Difference]: With dead ends: 1980 [2022-01-17 23:16:46,945 INFO L226 Difference]: Without dead ends: 1268 [2022-01-17 23:16:46,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-01-17 23:16:46,946 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 115 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:46,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 612 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:46,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2022-01-17 23:16:46,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1148. [2022-01-17 23:16:46,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 1147 states have (on average 2.866608544027899) internal successors, (3288), 1147 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:46,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 3288 transitions. [2022-01-17 23:16:46,971 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 3288 transitions. Word has length 67 [2022-01-17 23:16:46,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:46,971 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 3288 transitions. [2022-01-17 23:16:46,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:46,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 3288 transitions. [2022-01-17 23:16:46,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-17 23:16:46,974 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:46,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:16:46,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-17 23:16:46,975 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:46,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:46,975 INFO L85 PathProgramCache]: Analyzing trace with hash 563303713, now seen corresponding path program 3 times [2022-01-17 23:16:46,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:46,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283230668] [2022-01-17 23:16:46,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:46,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:47,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:47,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:47,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283230668] [2022-01-17 23:16:47,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283230668] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:47,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:47,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:16:47,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294431442] [2022-01-17 23:16:47,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:47,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:16:47,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:47,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:16:47,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:16:47,054 INFO L87 Difference]: Start difference. First operand 1148 states and 3288 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:47,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:47,130 INFO L93 Difference]: Finished difference Result 1724 states and 5001 transitions. [2022-01-17 23:16:47,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-17 23:16:47,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-01-17 23:16:47,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:47,134 INFO L225 Difference]: With dead ends: 1724 [2022-01-17 23:16:47,134 INFO L226 Difference]: Without dead ends: 938 [2022-01-17 23:16:47,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:16:47,135 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 88 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:47,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 392 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:47,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2022-01-17 23:16:47,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 938. [2022-01-17 23:16:47,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 937 states have (on average 2.767342582710779) internal successors, (2593), 937 states have internal predecessors, (2593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:47,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 2593 transitions. [2022-01-17 23:16:47,154 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 2593 transitions. Word has length 67 [2022-01-17 23:16:47,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:47,154 INFO L470 AbstractCegarLoop]: Abstraction has 938 states and 2593 transitions. [2022-01-17 23:16:47,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:47,155 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 2593 transitions. [2022-01-17 23:16:47,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-17 23:16:47,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:47,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:16:47,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-17 23:16:47,157 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:47,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:47,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1914124109, now seen corresponding path program 4 times [2022-01-17 23:16:47,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:47,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012949609] [2022-01-17 23:16:47,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:47,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:47,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:47,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:47,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012949609] [2022-01-17 23:16:47,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012949609] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:47,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:47,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:16:47,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621290431] [2022-01-17 23:16:47,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:47,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:16:47,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:47,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:16:47,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:16:47,261 INFO L87 Difference]: Start difference. First operand 938 states and 2593 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:47,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:47,337 INFO L93 Difference]: Finished difference Result 884 states and 2431 transitions. [2022-01-17 23:16:47,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-17 23:16:47,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-01-17 23:16:47,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:47,338 INFO L225 Difference]: With dead ends: 884 [2022-01-17 23:16:47,338 INFO L226 Difference]: Without dead ends: 0 [2022-01-17 23:16:47,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:16:47,339 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 76 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:47,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 474 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:47,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-17 23:16:47,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-17 23:16:47,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:47,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-17 23:16:47,340 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2022-01-17 23:16:47,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:47,340 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-17 23:16:47,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:16:47,340 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-17 23:16:47,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-17 23:16:47,343 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-17 23:16:47,343 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-17 23:16:47,343 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-17 23:16:47,343 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-17 23:16:47,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-17 23:16:47,346 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:16:47,348 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-17 23:16:47,348 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-17 23:16:47,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.01 11:16:47 BasicIcfg [2022-01-17 23:16:47,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-17 23:16:47,351 INFO L158 Benchmark]: Toolchain (without parser) took 6944.47ms. Allocated memory was 356.5MB in the beginning and 1.3GB in the end (delta: 929.0MB). Free memory was 300.7MB in the beginning and 951.2MB in the end (delta: -650.5MB). Peak memory consumption was 279.2MB. Max. memory is 16.0GB. [2022-01-17 23:16:47,351 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 356.5MB. Free memory is still 318.9MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 23:16:47,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.45ms. Allocated memory is still 356.5MB. Free memory was 300.7MB in the beginning and 319.7MB in the end (delta: -18.9MB). Peak memory consumption was 11.8MB. Max. memory is 16.0GB. [2022-01-17 23:16:47,351 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.63ms. Allocated memory is still 356.5MB. Free memory was 319.0MB in the beginning and 317.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-17 23:16:47,352 INFO L158 Benchmark]: Boogie Preprocessor took 39.76ms. Allocated memory is still 356.5MB. Free memory was 317.4MB in the beginning and 316.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-17 23:16:47,352 INFO L158 Benchmark]: RCFGBuilder took 369.17ms. Allocated memory is still 356.5MB. Free memory was 316.1MB in the beginning and 302.2MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-17 23:16:47,352 INFO L158 Benchmark]: TraceAbstraction took 5990.43ms. Allocated memory was 356.5MB in the beginning and 1.3GB in the end (delta: 929.0MB). Free memory was 301.5MB in the beginning and 951.2MB in the end (delta: -649.8MB). Peak memory consumption was 279.9MB. Max. memory is 16.0GB. [2022-01-17 23:16:47,353 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 356.5MB. Free memory is still 318.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 480.45ms. Allocated memory is still 356.5MB. Free memory was 300.7MB in the beginning and 319.7MB in the end (delta: -18.9MB). Peak memory consumption was 11.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 56.63ms. Allocated memory is still 356.5MB. Free memory was 319.0MB in the beginning and 317.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.76ms. Allocated memory is still 356.5MB. Free memory was 317.4MB in the beginning and 316.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 369.17ms. Allocated memory is still 356.5MB. Free memory was 316.1MB in the beginning and 302.2MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 5990.43ms. Allocated memory was 356.5MB in the beginning and 1.3GB in the end (delta: 929.0MB). Free memory was 301.5MB in the beginning and 951.2MB in the end (delta: -649.8MB). Peak memory consumption was 279.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 115 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.2s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1522 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1522 mSDsluCounter, 5295 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4241 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 693 IncrementalHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 1200 mSDtfsCounter, 693 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6591occurred in iteration=0, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 3771 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 681 NumberOfCodeBlocks, 681 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 670 ConstructedInterpolants, 0 QuantifiedInterpolants, 2320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-17 23:16:47,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...