/usr/bin/java -Xmx8000000000 -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-ext/13_unverif.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 16:06:27,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 16:06:27,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 16:06:27,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-03 16:06:27,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 16:06:27,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 16:06:27,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 16:06:27,877 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 [2022-03-03 16:06:27,894 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 16:06:27,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 16:06:27,895 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 16:06:27,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 16:06:27,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 16:06:27,896 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 16:06:27,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 16:06:27,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 16:06:27,897 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 16:06:27,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 16:06:27,898 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 16:06:27,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 16:06:27,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 16:06:27,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 16:06:27,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 16:06:27,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 16:06:27,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 16:06:27,899 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 16:06:27,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 16:06:27,900 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 16:06:27,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 16:06:27,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 16:06:27,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 16:06:27,900 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 16:06:27,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 16:06:27,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 16:06:27,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 16:06:27,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 16:06:27,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 16:06:27,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 16:06:27,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 16:06:27,902 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 16:06:27,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 16:06:27,902 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 16:06:28,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 16:06:28,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 16:06:28,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 16:06:28,115 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 16:06:28,116 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 16:06:28,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/13_unverif.i [2022-03-03 16:06:28,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac4ecd55e/beaa0cf4a31f4b378bf96099a17a4ef4/FLAGac1d97a8c [2022-03-03 16:06:28,652 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 16:06:28,652 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/13_unverif.i [2022-03-03 16:06:28,670 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac4ecd55e/beaa0cf4a31f4b378bf96099a17a4ef4/FLAGac1d97a8c [2022-03-03 16:06:28,957 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac4ecd55e/beaa0cf4a31f4b378bf96099a17a4ef4 [2022-03-03 16:06:28,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 16:06:28,960 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 16:06:28,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 16:06:28,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 16:06:28,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 16:06:28,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:06:28" (1/1) ... [2022-03-03 16:06:28,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2a1bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:06:28, skipping insertion in model container [2022-03-03 16:06:28,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:06:28" (1/1) ... [2022-03-03 16:06:28,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 16:06:29,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 16:06:29,263 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-ext/13_unverif.i[30213,30226] [2022-03-03 16:06:29,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 16:06:29,278 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 16:06:29,323 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-ext/13_unverif.i[30213,30226] [2022-03-03 16:06:29,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 16:06:29,365 INFO L208 MainTranslator]: Completed translation [2022-03-03 16:06:29,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:06:29 WrapperNode [2022-03-03 16:06:29,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 16:06:29,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 16:06:29,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 16:06:29,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 16:06:29,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:06:29" (1/1) ... [2022-03-03 16:06:29,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:06:29" (1/1) ... [2022-03-03 16:06:29,405 INFO L137 Inliner]: procedures = 168, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 44 [2022-03-03 16:06:29,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 16:06:29,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 16:06:29,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 16:06:29,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 16:06:29,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:06:29" (1/1) ... [2022-03-03 16:06:29,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:06:29" (1/1) ... [2022-03-03 16:06:29,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:06:29" (1/1) ... [2022-03-03 16:06:29,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:06:29" (1/1) ... [2022-03-03 16:06:29,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:06:29" (1/1) ... [2022-03-03 16:06:29,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:06:29" (1/1) ... [2022-03-03 16:06:29,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:06:29" (1/1) ... [2022-03-03 16:06:29,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 16:06:29,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 16:06:29,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 16:06:29,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 16:06:29,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:06:29" (1/1) ... [2022-03-03 16:06:29,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 16:06:29,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:06:29,472 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) [2022-03-03 16:06:29,499 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 [2022-03-03 16:06:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-03-03 16:06:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-03-03 16:06:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 16:06:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-03 16:06:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 16:06:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 16:06:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-03 16:06:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 16:06:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 16:06:29,517 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 16:06:29,651 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 16:06:29,652 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 16:06:29,768 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 16:06:29,787 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 16:06:29,787 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-03 16:06:29,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 04:06:29 BoogieIcfgContainer [2022-03-03 16:06:29,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 16:06:29,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 16:06:29,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 16:06:29,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 16:06:29,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:06:28" (1/3) ... [2022-03-03 16:06:29,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2041fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:06:29, skipping insertion in model container [2022-03-03 16:06:29,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:06:29" (2/3) ... [2022-03-03 16:06:29,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2041fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:06:29, skipping insertion in model container [2022-03-03 16:06:29,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 04:06:29" (3/3) ... [2022-03-03 16:06:29,800 INFO L111 eAbstractionObserver]: Analyzing ICFG 13_unverif.i [2022-03-03 16:06:29,807 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 16:06:29,807 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 16:06:29,807 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 16:06:29,807 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 16:06:29,844 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,844 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,845 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,845 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,845 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,845 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,845 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,845 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,846 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,846 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,846 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,846 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,847 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,847 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,848 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,848 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,848 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,848 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,848 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,848 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,849 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,849 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,849 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,849 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,850 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,850 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,853 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,853 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,854 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,854 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,854 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,854 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,854 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:29,856 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-03 16:06:29,906 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 16:06:29,911 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, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 16:06:29,912 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-03 16:06:29,920 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 44 transitions, 93 flow [2022-03-03 16:06:29,952 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 184 states, 181 states have (on average 1.9834254143646408) internal successors, (359), 183 states have internal predecessors, (359), 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) [2022-03-03 16:06:29,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 184 states, 181 states have (on average 1.9834254143646408) internal successors, (359), 183 states have internal predecessors, (359), 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) [2022-03-03 16:06:29,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-03 16:06:29,964 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:06:29,965 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:06:29,966 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-03 16:06:29,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:06:29,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1709671825, now seen corresponding path program 1 times [2022-03-03 16:06:29,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:06:29,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566838585] [2022-03-03 16:06:29,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:06:29,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:06:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 16:06:30,104 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-03 16:06:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 16:06:30,157 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-03 16:06:30,159 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-03 16:06:30,163 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 3 remaining) [2022-03-03 16:06:30,165 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-03-03 16:06:30,166 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-03-03 16:06:30,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 16:06:30,169 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-03-03 16:06:30,171 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-03 16:06:30,171 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-03-03 16:06:30,181 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,182 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,182 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,182 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,182 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,182 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,183 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,183 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,183 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,183 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,183 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,183 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,184 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,184 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,185 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,185 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,185 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,185 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,186 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,186 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,186 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,186 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,186 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,187 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,187 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,187 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,188 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,188 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,188 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,188 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,188 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,188 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,189 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,189 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,189 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,189 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,189 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,189 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,190 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,190 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,190 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,191 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,191 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,191 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,191 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,191 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,191 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,191 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,192 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,192 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,192 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,192 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,193 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,193 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,193 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,194 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,194 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,194 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,194 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,195 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,195 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,195 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,195 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,195 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,195 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,196 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:30,196 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-03 16:06:30,198 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 16:06:30,199 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, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 16:06:30,199 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-03 16:06:30,200 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 59 transitions, 130 flow [2022-03-03 16:06:30,307 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2483 states, 2475 states have (on average 3.085252525252525) internal successors, (7636), 2482 states have internal predecessors, (7636), 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) [2022-03-03 16:06:30,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 2483 states, 2475 states have (on average 3.085252525252525) internal successors, (7636), 2482 states have internal predecessors, (7636), 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) [2022-03-03 16:06:30,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-03 16:06:30,318 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:06:30,319 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] [2022-03-03 16:06:30,319 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-03 16:06:30,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:06:30,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1240991835, now seen corresponding path program 1 times [2022-03-03 16:06:30,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:06:30,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737699707] [2022-03-03 16:06:30,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:06:30,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:06:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:06:30,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:06:30,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:06:30,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737699707] [2022-03-03 16:06:30,642 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737699707] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:06:30,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:06:30,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:06:30,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785709758] [2022-03-03 16:06:30,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:06:30,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:06:30,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:06:30,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:06:30,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:06:30,677 INFO L87 Difference]: Start difference. First operand has 2483 states, 2475 states have (on average 3.085252525252525) internal successors, (7636), 2482 states have internal predecessors, (7636), 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 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2022-03-03 16:06:30,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:06:30,801 INFO L93 Difference]: Finished difference Result 1836 states and 5143 transitions. [2022-03-03 16:06:30,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:06:30,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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 28 [2022-03-03 16:06:30,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:06:30,826 INFO L225 Difference]: With dead ends: 1836 [2022-03-03 16:06:30,827 INFO L226 Difference]: Without dead ends: 1836 [2022-03-03 16:06:30,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:06:30,836 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 95 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:06:30,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 216 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:06:30,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2022-03-03 16:06:30,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1501. [2022-03-03 16:06:30,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 1497 states have (on average 2.8016032064128256) internal successors, (4194), 1500 states have internal predecessors, (4194), 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) [2022-03-03 16:06:30,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 4194 transitions. [2022-03-03 16:06:30,981 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 4194 transitions. Word has length 28 [2022-03-03 16:06:30,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:06:30,981 INFO L470 AbstractCegarLoop]: Abstraction has 1501 states and 4194 transitions. [2022-03-03 16:06:30,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2022-03-03 16:06:30,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 4194 transitions. [2022-03-03 16:06:30,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-03 16:06:30,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:06:30,989 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:06:30,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 16:06:30,989 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-03 16:06:30,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:06:30,991 INFO L85 PathProgramCache]: Analyzing trace with hash 691681847, now seen corresponding path program 1 times [2022-03-03 16:06:30,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:06:30,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95440955] [2022-03-03 16:06:30,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:06:30,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:06:31,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:06:31,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:06:31,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:06:31,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95440955] [2022-03-03 16:06:31,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95440955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:06:31,127 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:06:31,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-03 16:06:31,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173507836] [2022-03-03 16:06:31,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:06:31,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 16:06:31,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:06:31,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 16:06:31,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 16:06:31,130 INFO L87 Difference]: Start difference. First operand 1501 states and 4194 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-03-03 16:06:31,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:06:31,234 INFO L93 Difference]: Finished difference Result 1655 states and 4609 transitions. [2022-03-03 16:06:31,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 16:06:31,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2022-03-03 16:06:31,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:06:31,244 INFO L225 Difference]: With dead ends: 1655 [2022-03-03 16:06:31,244 INFO L226 Difference]: Without dead ends: 1655 [2022-03-03 16:06:31,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 16:06:31,250 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 40 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:06:31,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 176 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:06:31,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2022-03-03 16:06:31,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1463. [2022-03-03 16:06:31,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1460 states have (on average 2.8226027397260274) internal successors, (4121), 1462 states have internal predecessors, (4121), 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) [2022-03-03 16:06:31,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 4121 transitions. [2022-03-03 16:06:31,298 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 4121 transitions. Word has length 31 [2022-03-03 16:06:31,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:06:31,299 INFO L470 AbstractCegarLoop]: Abstraction has 1463 states and 4121 transitions. [2022-03-03 16:06:31,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-03-03 16:06:31,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 4121 transitions. [2022-03-03 16:06:31,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-03-03 16:06:31,305 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:06:31,310 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:06:31,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 16:06:31,310 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-03 16:06:31,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:06:31,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1316932227, now seen corresponding path program 1 times [2022-03-03 16:06:31,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:06:31,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015434543] [2022-03-03 16:06:31,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:06:31,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:06:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 16:06:31,342 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-03 16:06:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 16:06:31,370 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-03 16:06:31,370 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-03 16:06:31,370 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 4 remaining) [2022-03-03 16:06:31,370 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-03-03 16:06:31,373 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-03-03 16:06:31,374 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-03-03 16:06:31,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 16:06:31,374 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-03-03 16:06:31,374 WARN L235 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-03 16:06:31,374 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-03-03 16:06:31,391 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,391 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,391 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,391 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,391 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,391 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,392 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,392 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,392 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,392 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,392 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,392 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,392 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,392 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,393 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,393 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,393 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,394 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,394 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,394 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,394 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,394 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,394 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,394 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,395 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,395 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,396 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,396 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,401 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,401 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,401 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,402 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,402 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,402 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,402 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,402 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,403 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,403 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,403 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,403 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,404 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,404 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,404 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,404 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,404 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,404 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,404 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,405 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,405 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,405 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,405 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,405 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,406 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,406 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,406 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,406 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,406 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,406 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,407 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,407 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,407 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,407 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,407 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,408 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,408 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,408 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,409 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,409 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,409 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,409 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,409 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,409 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,409 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,409 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,410 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,410 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,410 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,411 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,412 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,412 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,412 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,412 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,413 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,413 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,413 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,415 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,415 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,415 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,415 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,415 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,415 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,415 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,416 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,416 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,416 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,416 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,416 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,416 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,416 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:31,420 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-03 16:06:31,422 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 16:06:31,429 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, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 16:06:31,429 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-03 16:06:31,432 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 74 transitions, 169 flow [2022-03-03 16:06:32,707 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 32910 states, 32891 states have (on average 4.156973032136451) internal successors, (136727), 32909 states have internal predecessors, (136727), 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) [2022-03-03 16:06:32,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 32910 states, 32891 states have (on average 4.156973032136451) internal successors, (136727), 32909 states have internal predecessors, (136727), 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) [2022-03-03 16:06:32,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-03 16:06:32,852 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:06:32,852 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] [2022-03-03 16:06:32,853 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-03-03 16:06:32,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:06:32,853 INFO L85 PathProgramCache]: Analyzing trace with hash 361438003, now seen corresponding path program 1 times [2022-03-03 16:06:32,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:06:32,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308677642] [2022-03-03 16:06:32,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:06:32,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:06:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:06:32,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:06:32,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:06:32,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308677642] [2022-03-03 16:06:32,978 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308677642] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:06:32,978 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:06:32,978 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:06:32,978 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916109020] [2022-03-03 16:06:32,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:06:32,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:06:32,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:06:32,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:06:32,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:06:33,055 INFO L87 Difference]: Start difference. First operand has 32910 states, 32891 states have (on average 4.156973032136451) internal successors, (136727), 32909 states have internal predecessors, (136727), 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 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2022-03-03 16:06:33,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:06:33,693 INFO L93 Difference]: Finished difference Result 22127 states and 84170 transitions. [2022-03-03 16:06:33,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:06:33,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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 28 [2022-03-03 16:06:33,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:06:33,966 INFO L225 Difference]: With dead ends: 22127 [2022-03-03 16:06:33,966 INFO L226 Difference]: Without dead ends: 22127 [2022-03-03 16:06:33,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:06:33,967 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 136 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:06:33,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 305 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:06:34,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22127 states. [2022-03-03 16:06:34,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22127 to 17169. [2022-03-03 16:06:34,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17169 states, 17161 states have (on average 3.8079948720937007) internal successors, (65349), 17168 states have internal predecessors, (65349), 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) [2022-03-03 16:06:35,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17169 states to 17169 states and 65349 transitions. [2022-03-03 16:06:35,039 INFO L78 Accepts]: Start accepts. Automaton has 17169 states and 65349 transitions. Word has length 28 [2022-03-03 16:06:35,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:06:35,039 INFO L470 AbstractCegarLoop]: Abstraction has 17169 states and 65349 transitions. [2022-03-03 16:06:35,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2022-03-03 16:06:35,040 INFO L276 IsEmpty]: Start isEmpty. Operand 17169 states and 65349 transitions. [2022-03-03 16:06:35,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-03 16:06:35,040 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:06:35,040 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:06:35,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 16:06:35,041 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-03-03 16:06:35,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:06:35,042 INFO L85 PathProgramCache]: Analyzing trace with hash 117564147, now seen corresponding path program 1 times [2022-03-03 16:06:35,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:06:35,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782262258] [2022-03-03 16:06:35,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:06:35,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:06:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:06:35,190 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:06:35,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:06:35,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782262258] [2022-03-03 16:06:35,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782262258] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:06:35,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:06:35,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-03 16:06:35,191 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379120482] [2022-03-03 16:06:35,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:06:35,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 16:06:35,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:06:35,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 16:06:35,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 16:06:35,195 INFO L87 Difference]: Start difference. First operand 17169 states and 65349 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-03-03 16:06:35,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:06:35,667 INFO L93 Difference]: Finished difference Result 21838 states and 82544 transitions. [2022-03-03 16:06:35,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 16:06:35,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2022-03-03 16:06:35,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:06:35,890 INFO L225 Difference]: With dead ends: 21838 [2022-03-03 16:06:35,891 INFO L226 Difference]: Without dead ends: 21838 [2022-03-03 16:06:35,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 16:06:35,892 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 64 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:06:35,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 235 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:06:35,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21838 states. [2022-03-03 16:06:36,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21838 to 19237. [2022-03-03 16:06:36,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19237 states, 19230 states have (on average 3.821944877795112) internal successors, (73496), 19236 states have internal predecessors, (73496), 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) [2022-03-03 16:06:36,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19237 states to 19237 states and 73496 transitions. [2022-03-03 16:06:36,675 INFO L78 Accepts]: Start accepts. Automaton has 19237 states and 73496 transitions. Word has length 31 [2022-03-03 16:06:36,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:06:36,676 INFO L470 AbstractCegarLoop]: Abstraction has 19237 states and 73496 transitions. [2022-03-03 16:06:36,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-03-03 16:06:36,676 INFO L276 IsEmpty]: Start isEmpty. Operand 19237 states and 73496 transitions. [2022-03-03 16:06:36,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-03 16:06:36,677 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:06:36,678 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:06:36,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-03 16:06:36,678 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-03-03 16:06:36,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:06:36,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1179531454, now seen corresponding path program 1 times [2022-03-03 16:06:36,679 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:06:36,679 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780476225] [2022-03-03 16:06:36,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:06:36,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:06:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:06:37,077 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-03 16:06:37,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:06:37,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780476225] [2022-03-03 16:06:37,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780476225] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:06:37,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:06:37,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:06:37,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285453983] [2022-03-03 16:06:37,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:06:37,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:06:37,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:06:37,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:06:37,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:06:37,079 INFO L87 Difference]: Start difference. First operand 19237 states and 73496 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2022-03-03 16:06:37,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:06:37,430 INFO L93 Difference]: Finished difference Result 24592 states and 93796 transitions. [2022-03-03 16:06:37,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:06:37,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 35 [2022-03-03 16:06:37,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:06:37,593 INFO L225 Difference]: With dead ends: 24592 [2022-03-03 16:06:37,593 INFO L226 Difference]: Without dead ends: 24592 [2022-03-03 16:06:37,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:06:37,594 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 130 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:06:37,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 304 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:06:37,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24592 states. [2022-03-03 16:06:38,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24592 to 20682. [2022-03-03 16:06:38,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20682 states, 20675 states have (on average 3.8162031438935915) internal successors, (78900), 20681 states have internal predecessors, (78900), 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) [2022-03-03 16:06:38,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20682 states to 20682 states and 78900 transitions. [2022-03-03 16:06:38,484 INFO L78 Accepts]: Start accepts. Automaton has 20682 states and 78900 transitions. Word has length 35 [2022-03-03 16:06:38,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:06:38,485 INFO L470 AbstractCegarLoop]: Abstraction has 20682 states and 78900 transitions. [2022-03-03 16:06:38,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2022-03-03 16:06:38,485 INFO L276 IsEmpty]: Start isEmpty. Operand 20682 states and 78900 transitions. [2022-03-03 16:06:38,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-03-03 16:06:38,487 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:06:38,488 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:06:38,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 16:06:38,488 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-03-03 16:06:38,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:06:38,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1999828010, now seen corresponding path program 1 times [2022-03-03 16:06:38,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:06:38,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57084967] [2022-03-03 16:06:38,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:06:38,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:06:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:06:38,597 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-03 16:06:38,598 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:06:38,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57084967] [2022-03-03 16:06:38,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57084967] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:06:38,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:06:38,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-03 16:06:38,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061452948] [2022-03-03 16:06:38,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:06:38,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 16:06:38,599 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:06:38,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 16:06:38,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 16:06:38,600 INFO L87 Difference]: Start difference. First operand 20682 states and 78900 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-03-03 16:06:39,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:06:39,045 INFO L93 Difference]: Finished difference Result 26835 states and 101512 transitions. [2022-03-03 16:06:39,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 16:06:39,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 38 [2022-03-03 16:06:39,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:06:39,176 INFO L225 Difference]: With dead ends: 26835 [2022-03-03 16:06:39,176 INFO L226 Difference]: Without dead ends: 26835 [2022-03-03 16:06:39,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 16:06:39,178 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 62 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:06:39,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 235 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:06:39,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26835 states. [2022-03-03 16:06:40,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26835 to 23708. [2022-03-03 16:06:40,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23708 states, 23702 states have (on average 3.8260062441988016) internal successors, (90684), 23707 states have internal predecessors, (90684), 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) [2022-03-03 16:06:40,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23708 states to 23708 states and 90684 transitions. [2022-03-03 16:06:40,289 INFO L78 Accepts]: Start accepts. Automaton has 23708 states and 90684 transitions. Word has length 38 [2022-03-03 16:06:40,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:06:40,290 INFO L470 AbstractCegarLoop]: Abstraction has 23708 states and 90684 transitions. [2022-03-03 16:06:40,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-03-03 16:06:40,290 INFO L276 IsEmpty]: Start isEmpty. Operand 23708 states and 90684 transitions. [2022-03-03 16:06:40,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-03-03 16:06:40,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:06:40,294 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:06:40,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 16:06:40,294 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-03-03 16:06:40,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:06:40,294 INFO L85 PathProgramCache]: Analyzing trace with hash 2096567153, now seen corresponding path program 1 times [2022-03-03 16:06:40,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:06:40,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658357422] [2022-03-03 16:06:40,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:06:40,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:06:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:06:40,353 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:06:40,353 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:06:40,353 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658357422] [2022-03-03 16:06:40,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658357422] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:06:40,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573288284] [2022-03-03 16:06:40,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:06:40,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:06:40,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:06:40,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:06:40,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-03 16:06:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:06:40,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-03 16:06:40,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:06:40,733 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:06:40,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:06:41,003 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:06:41,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573288284] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-03 16:06:41,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-03 16:06:41,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5, 9] total 16 [2022-03-03 16:06:41,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119089237] [2022-03-03 16:06:41,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:06:41,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 16:06:41,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:06:41,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 16:06:41,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-03-03 16:06:41,005 INFO L87 Difference]: Start difference. First operand 23708 states and 90684 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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) [2022-03-03 16:06:41,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:06:41,949 INFO L93 Difference]: Finished difference Result 58660 states and 218807 transitions. [2022-03-03 16:06:41,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 16:06:41,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 40 [2022-03-03 16:06:41,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:06:42,473 INFO L225 Difference]: With dead ends: 58660 [2022-03-03 16:06:42,474 INFO L226 Difference]: Without dead ends: 58660 [2022-03-03 16:06:42,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 72 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:06:42,475 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 201 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:06:42,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 393 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:06:42,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58660 states. [2022-03-03 16:06:43,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58660 to 37169. [2022-03-03 16:06:43,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37169 states, 37159 states have (on average 3.839527436152749) internal successors, (142673), 37168 states have internal predecessors, (142673), 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) [2022-03-03 16:06:43,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37169 states to 37169 states and 142673 transitions. [2022-03-03 16:06:43,983 INFO L78 Accepts]: Start accepts. Automaton has 37169 states and 142673 transitions. Word has length 40 [2022-03-03 16:06:43,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:06:43,983 INFO L470 AbstractCegarLoop]: Abstraction has 37169 states and 142673 transitions. [2022-03-03 16:06:43,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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) [2022-03-03 16:06:43,983 INFO L276 IsEmpty]: Start isEmpty. Operand 37169 states and 142673 transitions. [2022-03-03 16:06:43,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-03-03 16:06:43,986 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:06:43,986 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:06:44,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-03 16:06:44,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:06:44,187 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-03-03 16:06:44,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:06:44,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1668396317, now seen corresponding path program 1 times [2022-03-03 16:06:44,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:06:44,188 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295127453] [2022-03-03 16:06:44,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:06:44,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:06:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:06:44,268 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:06:44,268 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:06:44,268 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295127453] [2022-03-03 16:06:44,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295127453] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:06:44,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122608050] [2022-03-03 16:06:44,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:06:44,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:06:44,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:06:44,270 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:06:44,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-03 16:06:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:06:44,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-03 16:06:44,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:06:44,507 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:06:44,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:06:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:06:44,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122608050] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-03 16:06:44,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-03 16:06:44,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 8] total 16 [2022-03-03 16:06:44,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232330867] [2022-03-03 16:06:44,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:06:44,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 16:06:44,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:06:44,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 16:06:44,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-03-03 16:06:44,702 INFO L87 Difference]: Start difference. First operand 37169 states and 142673 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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) [2022-03-03 16:06:45,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:06:45,978 INFO L93 Difference]: Finished difference Result 74646 states and 281487 transitions. [2022-03-03 16:06:45,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 16:06:45,979 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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 40 [2022-03-03 16:06:45,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:06:46,666 INFO L225 Difference]: With dead ends: 74646 [2022-03-03 16:06:46,666 INFO L226 Difference]: Without dead ends: 74646 [2022-03-03 16:06:46,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 73 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:06:46,667 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 265 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:06:46,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 492 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:06:46,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74646 states. [2022-03-03 16:06:48,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74646 to 43615. [2022-03-03 16:06:48,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43615 states, 43606 states have (on average 3.8852222171260835) internal successors, (169419), 43614 states have internal predecessors, (169419), 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) [2022-03-03 16:06:48,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43615 states to 43615 states and 169419 transitions. [2022-03-03 16:06:48,359 INFO L78 Accepts]: Start accepts. Automaton has 43615 states and 169419 transitions. Word has length 40 [2022-03-03 16:06:48,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:06:48,360 INFO L470 AbstractCegarLoop]: Abstraction has 43615 states and 169419 transitions. [2022-03-03 16:06:48,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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) [2022-03-03 16:06:48,360 INFO L276 IsEmpty]: Start isEmpty. Operand 43615 states and 169419 transitions. [2022-03-03 16:06:48,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-03-03 16:06:48,365 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:06:48,365 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:06:48,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-03 16:06:48,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-03 16:06:48,570 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-03-03 16:06:48,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:06:48,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1668410219, now seen corresponding path program 2 times [2022-03-03 16:06:48,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:06:48,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844531798] [2022-03-03 16:06:48,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:06:48,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:06:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:06:48,636 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:06:48,637 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:06:48,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844531798] [2022-03-03 16:06:48,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844531798] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:06:48,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459630454] [2022-03-03 16:06:48,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 16:06:48,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:06:48,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:06:48,638 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:06:48,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-03 16:06:48,702 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 16:06:48,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:06:48,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-03 16:06:48,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:06:48,785 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:06:48,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-03 16:06:48,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459630454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:06:48,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-03 16:06:48,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-03-03 16:06:48,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582271225] [2022-03-03 16:06:48,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:06:48,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 16:06:48,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:06:48,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 16:06:48,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-03 16:06:48,787 INFO L87 Difference]: Start difference. First operand 43615 states and 169419 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2022-03-03 16:06:49,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:06:49,468 INFO L93 Difference]: Finished difference Result 48558 states and 179019 transitions. [2022-03-03 16:06:49,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 16:06:49,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2022-03-03 16:06:49,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:06:49,670 INFO L225 Difference]: With dead ends: 48558 [2022-03-03 16:06:49,670 INFO L226 Difference]: Without dead ends: 48558 [2022-03-03 16:06:49,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-03 16:06:49,671 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 65 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:06:49,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 242 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:06:49,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48558 states. [2022-03-03 16:06:50,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48558 to 33401. [2022-03-03 16:06:50,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33401 states, 33393 states have (on average 3.7187434492258857) internal successors, (124180), 33400 states have internal predecessors, (124180), 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) [2022-03-03 16:06:51,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33401 states to 33401 states and 124180 transitions. [2022-03-03 16:06:51,049 INFO L78 Accepts]: Start accepts. Automaton has 33401 states and 124180 transitions. Word has length 40 [2022-03-03 16:06:51,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:06:51,049 INFO L470 AbstractCegarLoop]: Abstraction has 33401 states and 124180 transitions. [2022-03-03 16:06:51,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2022-03-03 16:06:51,050 INFO L276 IsEmpty]: Start isEmpty. Operand 33401 states and 124180 transitions. [2022-03-03 16:06:51,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-03-03 16:06:51,053 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:06:51,053 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:06:51,079 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-03 16:06:51,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:06:51,268 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-03-03 16:06:51,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:06:51,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1100153277, now seen corresponding path program 2 times [2022-03-03 16:06:51,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:06:51,268 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318733467] [2022-03-03 16:06:51,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:06:51,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:06:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:06:51,324 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:06:51,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:06:51,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318733467] [2022-03-03 16:06:51,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318733467] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:06:51,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550115648] [2022-03-03 16:06:51,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 16:06:51,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:06:51,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:06:51,326 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:06:51,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-03 16:06:51,406 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 16:06:51,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:06:51,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-03 16:06:51,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:06:51,515 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:06:51,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:06:51,610 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:06:51,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550115648] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:06:51,610 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:06:51,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-03-03 16:06:51,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768792039] [2022-03-03 16:06:51,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:06:51,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 16:06:51,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:06:51,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 16:06:51,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-03-03 16:06:51,614 INFO L87 Difference]: Start difference. First operand 33401 states and 124180 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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) [2022-03-03 16:06:51,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:06:51,860 INFO L93 Difference]: Finished difference Result 11710 states and 41209 transitions. [2022-03-03 16:06:51,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:06:51,876 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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 40 [2022-03-03 16:06:51,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:06:51,916 INFO L225 Difference]: With dead ends: 11710 [2022-03-03 16:06:51,916 INFO L226 Difference]: Without dead ends: 11710 [2022-03-03 16:06:51,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:06:51,917 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 179 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:06:51,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 340 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:06:51,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11710 states. [2022-03-03 16:06:52,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11710 to 6988. [2022-03-03 16:06:52,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6988 states, 6986 states have (on average 3.4629258517034067) internal successors, (24192), 6987 states have internal predecessors, (24192), 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) [2022-03-03 16:06:52,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6988 states to 6988 states and 24192 transitions. [2022-03-03 16:06:52,302 INFO L78 Accepts]: Start accepts. Automaton has 6988 states and 24192 transitions. Word has length 40 [2022-03-03 16:06:52,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:06:52,302 INFO L470 AbstractCegarLoop]: Abstraction has 6988 states and 24192 transitions. [2022-03-03 16:06:52,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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) [2022-03-03 16:06:52,302 INFO L276 IsEmpty]: Start isEmpty. Operand 6988 states and 24192 transitions. [2022-03-03 16:06:52,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-03-03 16:06:52,305 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:06:52,305 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:06:52,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-03 16:06:52,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:06:52,527 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-03-03 16:06:52,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:06:52,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1387387467, now seen corresponding path program 1 times [2022-03-03 16:06:52,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:06:52,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338575583] [2022-03-03 16:06:52,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:06:52,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:06:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 16:06:52,538 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-03 16:06:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 16:06:52,558 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-03 16:06:52,558 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-03 16:06:52,558 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 5 remaining) [2022-03-03 16:06:52,559 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-03-03 16:06:52,559 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-03-03 16:06:52,559 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-03-03 16:06:52,559 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-03-03 16:06:52,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-03 16:06:52,559 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2022-03-03 16:06:52,559 WARN L235 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-03 16:06:52,560 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-03-03 16:06:52,572 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,573 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,573 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,573 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,573 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,573 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,573 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,573 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,573 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,573 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,573 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,574 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,574 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,574 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,574 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,574 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,574 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,574 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,574 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,575 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,575 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,575 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,575 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,575 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,575 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,575 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,575 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,575 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,576 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,576 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,576 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,576 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,576 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,576 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,576 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,576 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,576 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,576 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,576 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,576 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,577 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,577 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,577 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,577 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,577 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,577 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,577 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,577 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,577 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,577 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,578 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,578 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,578 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,578 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,578 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,578 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,578 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,578 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,578 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,578 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,578 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,579 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,579 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,579 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,579 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,579 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,579 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,579 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,579 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,579 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,579 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,579 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,580 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,580 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,580 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,580 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,580 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,580 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,580 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,580 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,580 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,581 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,581 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,581 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,581 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,581 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,581 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,581 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,581 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,581 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,581 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,581 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,582 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,582 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,582 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,582 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,583 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,583 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,583 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,583 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,583 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,583 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,583 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,583 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,584 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,584 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,584 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,584 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,584 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,584 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,584 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,585 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,585 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,585 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,585 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,585 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,585 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,585 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,586 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,586 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,586 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,586 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,586 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,586 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,586 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,587 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,587 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,588 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,588 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,588 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,588 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,588 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:06:52,589 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-03 16:06:52,591 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 16:06:52,592 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, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 16:06:52,592 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-03-03 16:06:52,596 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 89 transitions, 210 flow [2022-03-03 16:07:05,506 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 430081 states, 430039 states have (on average 5.230734886835845) internal successors, (2249420), 430080 states have internal predecessors, (2249420), 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) [2022-03-03 16:07:06,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 430081 states, 430039 states have (on average 5.230734886835845) internal successors, (2249420), 430080 states have internal predecessors, (2249420), 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) [2022-03-03 16:07:06,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-03 16:07:06,275 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:07:06,275 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] [2022-03-03 16:07:06,276 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-03 16:07:06,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:07:06,276 INFO L85 PathProgramCache]: Analyzing trace with hash 894277633, now seen corresponding path program 1 times [2022-03-03 16:07:06,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:07:06,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925093888] [2022-03-03 16:07:06,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:07:06,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:07:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:07:06,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:07:06,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:07:06,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925093888] [2022-03-03 16:07:06,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925093888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:07:06,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:07:06,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:07:06,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110641337] [2022-03-03 16:07:06,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:07:06,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:07:06,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:07:06,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:07:06,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:07:07,153 INFO L87 Difference]: Start difference. First operand has 430081 states, 430039 states have (on average 5.230734886835845) internal successors, (2249420), 430080 states have internal predecessors, (2249420), 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 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2022-03-03 16:07:13,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:07:13,485 INFO L93 Difference]: Finished difference Result 256276 states and 1230452 transitions. [2022-03-03 16:07:13,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:07:13,486 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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 28 [2022-03-03 16:07:13,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:07:16,521 INFO L225 Difference]: With dead ends: 256276 [2022-03-03 16:07:16,522 INFO L226 Difference]: Without dead ends: 256276 [2022-03-03 16:07:16,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:07:16,522 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 146 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:07:16,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 463 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:07:17,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256276 states. [2022-03-03 16:07:29,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256276 to 198773. [2022-03-03 16:07:30,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198773 states, 198757 states have (on average 4.808474670074513) internal successors, (955718), 198772 states have internal predecessors, (955718), 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) [2022-03-03 16:07:32,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198773 states to 198773 states and 955718 transitions. [2022-03-03 16:07:32,481 INFO L78 Accepts]: Start accepts. Automaton has 198773 states and 955718 transitions. Word has length 28 [2022-03-03 16:07:32,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:07:32,481 INFO L470 AbstractCegarLoop]: Abstraction has 198773 states and 955718 transitions. [2022-03-03 16:07:32,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2022-03-03 16:07:32,481 INFO L276 IsEmpty]: Start isEmpty. Operand 198773 states and 955718 transitions. [2022-03-03 16:07:32,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-03 16:07:32,482 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:07:32,482 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:07:32,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-03 16:07:32,483 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-03 16:07:32,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:07:32,483 INFO L85 PathProgramCache]: Analyzing trace with hash -256042260, now seen corresponding path program 1 times [2022-03-03 16:07:32,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:07:32,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246268895] [2022-03-03 16:07:32,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:07:32,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:07:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:07:32,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:07:32,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:07:32,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246268895] [2022-03-03 16:07:32,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246268895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:07:32,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:07:32,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-03 16:07:32,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147387349] [2022-03-03 16:07:32,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:07:32,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 16:07:32,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:07:32,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 16:07:32,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 16:07:32,537 INFO L87 Difference]: Start difference. First operand 198773 states and 955718 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-03-03 16:07:38,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:07:38,023 INFO L93 Difference]: Finished difference Result 274947 states and 1311578 transitions. [2022-03-03 16:07:38,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 16:07:38,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2022-03-03 16:07:38,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:07:43,601 INFO L225 Difference]: With dead ends: 274947 [2022-03-03 16:07:43,602 INFO L226 Difference]: Without dead ends: 274947 [2022-03-03 16:07:43,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 16:07:43,602 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 88 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:07:43,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 294 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:07:44,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274947 states. [2022-03-03 16:07:59,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274947 to 238959. [2022-03-03 16:08:01,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238959 states, 238944 states have (on average 4.814965012722646) internal successors, (1150507), 238958 states have internal predecessors, (1150507), 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) [2022-03-03 16:08:04,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238959 states to 238959 states and 1150507 transitions. [2022-03-03 16:08:04,909 INFO L78 Accepts]: Start accepts. Automaton has 238959 states and 1150507 transitions. Word has length 31 [2022-03-03 16:08:04,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:08:04,909 INFO L470 AbstractCegarLoop]: Abstraction has 238959 states and 1150507 transitions. [2022-03-03 16:08:04,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-03-03 16:08:04,910 INFO L276 IsEmpty]: Start isEmpty. Operand 238959 states and 1150507 transitions. [2022-03-03 16:08:04,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-03 16:08:04,916 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:08:04,916 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:08:04,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-03 16:08:04,916 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-03 16:08:04,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:08:04,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1275921609, now seen corresponding path program 1 times [2022-03-03 16:08:04,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:08:04,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917017316] [2022-03-03 16:08:04,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:08:04,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:08:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:08:05,033 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-03 16:08:05,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:08:05,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917017316] [2022-03-03 16:08:05,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917017316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:08:05,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:08:05,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:08:05,034 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262496452] [2022-03-03 16:08:05,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:08:05,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:08:05,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:08:05,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:08:05,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:08:05,035 INFO L87 Difference]: Start difference. First operand 238959 states and 1150507 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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)