/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-C-DAC/pthread-demo-datarace-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 14:57:47,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 14:57:47,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 14:57:48,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-01 14:57:48,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 14:57:48,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 14:57:48,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 14:57:48,074 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 [2022-03-01 14:57:48,097 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 14:57:48,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 14:57:48,097 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 14:57:48,097 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 14:57:48,098 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 14:57:48,098 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 14:57:48,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 14:57:48,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 14:57:48,099 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 14:57:48,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 14:57:48,099 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 14:57:48,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 14:57:48,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 14:57:48,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 14:57:48,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 14:57:48,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 14:57:48,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 14:57:48,100 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 14:57:48,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 14:57:48,100 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 14:57:48,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 14:57:48,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 14:57:48,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 14:57:48,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 14:57:48,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 14:57:48,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 14:57:48,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 14:57:48,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 14:57:48,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 14:57:48,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 14:57:48,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 14:57:48,102 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 14:57:48,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 14:57:48,102 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 14:57:48,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 14:57:48,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 14:57:48,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 14:57:48,342 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 14:57:48,344 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 14:57:48,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-2.i [2022-03-01 14:57:48,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/842af1fc1/6c469b8713c2439a867b41b1b6fda24a/FLAGa32fd547d [2022-03-01 14:57:48,768 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 14:57:48,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-2.i [2022-03-01 14:57:48,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/842af1fc1/6c469b8713c2439a867b41b1b6fda24a/FLAGa32fd547d [2022-03-01 14:57:49,135 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/842af1fc1/6c469b8713c2439a867b41b1b6fda24a [2022-03-01 14:57:49,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 14:57:49,138 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 14:57:49,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 14:57:49,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 14:57:49,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 14:57:49,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 02:57:49" (1/1) ... [2022-03-01 14:57:49,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72358a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:57:49, skipping insertion in model container [2022-03-01 14:57:49,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 02:57:49" (1/1) ... [2022-03-01 14:57:49,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 14:57:49,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 14:57:49,375 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-C-DAC/pthread-demo-datarace-2.i[818,831] [2022-03-01 14:57:49,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 14:57:49,675 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 14:57:49,683 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-C-DAC/pthread-demo-datarace-2.i[818,831] [2022-03-01 14:57:49,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 14:57:49,782 INFO L208 MainTranslator]: Completed translation [2022-03-01 14:57:49,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:57:49 WrapperNode [2022-03-01 14:57:49,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 14:57:49,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 14:57:49,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 14:57:49,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 14:57:49,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:57:49" (1/1) ... [2022-03-01 14:57:49,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:57:49" (1/1) ... [2022-03-01 14:57:49,835 INFO L137 Inliner]: procedures = 363, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2022-03-01 14:57:49,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 14:57:49,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 14:57:49,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 14:57:49,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 14:57:49,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:57:49" (1/1) ... [2022-03-01 14:57:49,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:57:49" (1/1) ... [2022-03-01 14:57:49,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:57:49" (1/1) ... [2022-03-01 14:57:49,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:57:49" (1/1) ... [2022-03-01 14:57:49,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:57:49" (1/1) ... [2022-03-01 14:57:49,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:57:49" (1/1) ... [2022-03-01 14:57:49,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:57:49" (1/1) ... [2022-03-01 14:57:49,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 14:57:49,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 14:57:49,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 14:57:49,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 14:57:49,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:57:49" (1/1) ... [2022-03-01 14:57:49,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 14:57:49,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 14:57:49,902 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) [2022-03-01 14:57:49,905 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 [2022-03-01 14:57:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 14:57:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 14:57:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 14:57:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2022-03-01 14:57:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2022-03-01 14:57:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 14:57:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 14:57:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 14:57:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 14:57:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 14:57:49,936 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 14:57:50,039 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 14:57:50,040 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 14:57:50,197 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 14:57:50,203 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 14:57:50,203 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-03-01 14:57:50,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 02:57:50 BoogieIcfgContainer [2022-03-01 14:57:50,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 14:57:50,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 14:57:50,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 14:57:50,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 14:57:50,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 02:57:49" (1/3) ... [2022-03-01 14:57:50,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40424c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 02:57:50, skipping insertion in model container [2022-03-01 14:57:50,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:57:49" (2/3) ... [2022-03-01 14:57:50,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40424c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 02:57:50, skipping insertion in model container [2022-03-01 14:57:50,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 02:57:50" (3/3) ... [2022-03-01 14:57:50,213 INFO L111 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-2.i [2022-03-01 14:57:50,216 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 14:57:50,217 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 14:57:50,217 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 14:57:50,217 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 14:57:50,242 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,242 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,242 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,243 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,243 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,243 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,243 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,243 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,243 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,243 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,244 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,244 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,244 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,244 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,244 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,244 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,245 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,245 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,245 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,245 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,245 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,245 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,246 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,246 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,246 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,246 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,246 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,246 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,247 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,247 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,247 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,247 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,247 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,247 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,247 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,247 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,248 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,248 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,248 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,248 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,248 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,248 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,251 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,251 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,251 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,251 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,251 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,251 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,251 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,252 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:57:50,254 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-01 14:57:50,283 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 14:57:50,288 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 [2022-03-01 14:57:50,288 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-01 14:57:50,296 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 100 transitions, 208 flow [2022-03-01 14:57:50,343 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 348 states, 347 states have (on average 2.0144092219020173) internal successors, (699), 347 states have internal predecessors, (699), 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) [2022-03-01 14:57:50,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 348 states, 347 states have (on average 2.0144092219020173) internal successors, (699), 347 states have internal predecessors, (699), 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) [2022-03-01 14:57:50,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-01 14:57:50,368 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:57:50,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:57:50,369 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 14:57:50,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:57:50,376 INFO L85 PathProgramCache]: Analyzing trace with hash -2082170151, now seen corresponding path program 1 times [2022-03-01 14:57:50,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:57:50,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977970087] [2022-03-01 14:57:50,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:57:50,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:57:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:57:50,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 14:57:50,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:57:50,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977970087] [2022-03-01 14:57:50,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977970087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 14:57:50,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 14:57:50,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-01 14:57:50,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580819977] [2022-03-01 14:57:50,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 14:57:50,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-01 14:57:50,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:57:50,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-01 14:57:50,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 14:57:50,624 INFO L87 Difference]: Start difference. First operand has 348 states, 347 states have (on average 2.0144092219020173) internal successors, (699), 347 states have internal predecessors, (699), 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 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 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) [2022-03-01 14:57:50,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:57:50,657 INFO L93 Difference]: Finished difference Result 346 states and 646 transitions. [2022-03-01 14:57:50,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 14:57:50,660 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 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 65 [2022-03-01 14:57:50,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:57:50,676 INFO L225 Difference]: With dead ends: 346 [2022-03-01 14:57:50,676 INFO L226 Difference]: Without dead ends: 301 [2022-03-01 14:57:50,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 14:57:50,680 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 14:57:50,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 14:57:50,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-03-01 14:57:50,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2022-03-01 14:57:50,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 1.8533333333333333) internal successors, (556), 300 states have internal predecessors, (556), 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) [2022-03-01 14:57:50,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 556 transitions. [2022-03-01 14:57:50,723 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 556 transitions. Word has length 65 [2022-03-01 14:57:50,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:57:50,724 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 556 transitions. [2022-03-01 14:57:50,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 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) [2022-03-01 14:57:50,724 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 556 transitions. [2022-03-01 14:57:50,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-01 14:57:50,726 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:57:50,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:57:50,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 14:57:50,727 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 14:57:50,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:57:50,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1510569913, now seen corresponding path program 1 times [2022-03-01 14:57:50,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:57:50,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060918686] [2022-03-01 14:57:50,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:57:50,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:57:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:57:50,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 14:57:50,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:57:50,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060918686] [2022-03-01 14:57:50,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060918686] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 14:57:50,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 14:57:50,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 14:57:50,817 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693941632] [2022-03-01 14:57:50,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 14:57:50,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 14:57:50,818 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:57:50,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 14:57:50,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 14:57:50,818 INFO L87 Difference]: Start difference. First operand 301 states and 556 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2022-03-01 14:57:50,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:57:50,842 INFO L93 Difference]: Finished difference Result 420 states and 794 transitions. [2022-03-01 14:57:50,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 14:57:50,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2022-03-01 14:57:50,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:57:50,844 INFO L225 Difference]: With dead ends: 420 [2022-03-01 14:57:50,844 INFO L226 Difference]: Without dead ends: 420 [2022-03-01 14:57:50,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 14:57:50,845 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 23 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 14:57:50,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 161 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 14:57:50,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-03-01 14:57:50,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 318. [2022-03-01 14:57:50,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 317 states have (on average 1.861198738170347) internal successors, (590), 317 states have internal predecessors, (590), 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) [2022-03-01 14:57:50,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 590 transitions. [2022-03-01 14:57:50,861 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 590 transitions. Word has length 65 [2022-03-01 14:57:50,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:57:50,861 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 590 transitions. [2022-03-01 14:57:50,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2022-03-01 14:57:50,861 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 590 transitions. [2022-03-01 14:57:50,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-01 14:57:50,863 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:57:50,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:57:50,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 14:57:50,863 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 14:57:50,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:57:50,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1975515370, now seen corresponding path program 1 times [2022-03-01 14:57:50,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:57:50,864 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207828146] [2022-03-01 14:57:50,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:57:50,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:57:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:57:50,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 14:57:50,979 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:57:50,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207828146] [2022-03-01 14:57:50,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207828146] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 14:57:50,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572760437] [2022-03-01 14:57:50,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:57:50,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 14:57:50,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 14:57:50,982 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) [2022-03-01 14:57:50,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-01 14:57:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:57:51,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-01 14:57:51,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 14:57:51,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 14:57:51,164 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-01 14:57:51,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572760437] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 14:57:51,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-01 14:57:51,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-03-01 14:57:51,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139895303] [2022-03-01 14:57:51,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 14:57:51,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 14:57:51,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:57:51,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 14:57:51,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-01 14:57:51,166 INFO L87 Difference]: Start difference. First operand 318 states and 590 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2022-03-01 14:57:51,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:57:51,179 INFO L93 Difference]: Finished difference Result 382 states and 718 transitions. [2022-03-01 14:57:51,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 14:57:51,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2022-03-01 14:57:51,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:57:51,181 INFO L225 Difference]: With dead ends: 382 [2022-03-01 14:57:51,181 INFO L226 Difference]: Without dead ends: 382 [2022-03-01 14:57:51,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-01 14:57:51,182 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 18 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 14:57:51,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 158 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 14:57:51,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-03-01 14:57:51,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 334. [2022-03-01 14:57:51,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 333 states have (on average 1.867867867867868) internal successors, (622), 333 states have internal predecessors, (622), 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) [2022-03-01 14:57:51,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 622 transitions. [2022-03-01 14:57:51,192 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 622 transitions. Word has length 73 [2022-03-01 14:57:51,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:57:51,192 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 622 transitions. [2022-03-01 14:57:51,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2022-03-01 14:57:51,192 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 622 transitions. [2022-03-01 14:57:51,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-01 14:57:51,193 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:57:51,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:57:51,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-01 14:57:51,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 14:57:51,410 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 14:57:51,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:57:51,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1357678629, now seen corresponding path program 1 times [2022-03-01 14:57:51,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:57:51,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042840715] [2022-03-01 14:57:51,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:57:51,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:57:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:57:51,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 14:57:51,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:57:51,531 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042840715] [2022-03-01 14:57:51,531 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042840715] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 14:57:51,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622239269] [2022-03-01 14:57:51,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:57:51,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 14:57:51,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 14:57:51,538 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) [2022-03-01 14:57:51,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-01 14:57:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:57:51,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-01 14:57:51,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 14:57:51,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 14:57:51,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 14:57:51,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 14:57:51,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622239269] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 14:57:51,930 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 14:57:51,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-01 14:57:51,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471291140] [2022-03-01 14:57:51,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 14:57:51,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 14:57:51,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:57:51,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 14:57:51,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-01 14:57:51,932 INFO L87 Difference]: Start difference. First operand 334 states and 622 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 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) [2022-03-01 14:57:52,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:57:52,002 INFO L93 Difference]: Finished difference Result 622 states and 1198 transitions. [2022-03-01 14:57:52,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 14:57:52,002 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 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 78 [2022-03-01 14:57:52,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:57:52,004 INFO L225 Difference]: With dead ends: 622 [2022-03-01 14:57:52,004 INFO L226 Difference]: Without dead ends: 622 [2022-03-01 14:57:52,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-03-01 14:57:52,005 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 238 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 14:57:52,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 499 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 14:57:52,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-03-01 14:57:52,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2022-03-01 14:57:52,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 621 states have (on average 1.92914653784219) internal successors, (1198), 621 states have internal predecessors, (1198), 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) [2022-03-01 14:57:52,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1198 transitions. [2022-03-01 14:57:52,050 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1198 transitions. Word has length 78 [2022-03-01 14:57:52,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:57:52,051 INFO L470 AbstractCegarLoop]: Abstraction has 622 states and 1198 transitions. [2022-03-01 14:57:52,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 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) [2022-03-01 14:57:52,051 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1198 transitions. [2022-03-01 14:57:52,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-01 14:57:52,052 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:57:52,052 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:57:52,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-01 14:57:52,269 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,SelfDestructingSolverStorable3 [2022-03-01 14:57:52,270 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 14:57:52,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:57:52,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1027660763, now seen corresponding path program 2 times [2022-03-01 14:57:52,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:57:52,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474896211] [2022-03-01 14:57:52,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:57:52,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:57:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:57:52,316 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-01 14:57:52,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:57:52,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474896211] [2022-03-01 14:57:52,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474896211] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 14:57:52,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112285196] [2022-03-01 14:57:52,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 14:57:52,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 14:57:52,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 14:57:52,318 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) [2022-03-01 14:57:52,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-01 14:57:52,405 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 14:57:52,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 14:57:52,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-01 14:57:52,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 14:57:52,528 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-01 14:57:52,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 14:57:52,635 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-01 14:57:52,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112285196] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 14:57:52,636 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 14:57:52,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-01 14:57:52,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205901648] [2022-03-01 14:57:52,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 14:57:52,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 14:57:52,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:57:52,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 14:57:52,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-01 14:57:52,638 INFO L87 Difference]: Start difference. First operand 622 states and 1198 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 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) [2022-03-01 14:57:52,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:57:52,690 INFO L93 Difference]: Finished difference Result 942 states and 1838 transitions. [2022-03-01 14:57:52,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 14:57:52,691 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 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 94 [2022-03-01 14:57:52,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:57:52,695 INFO L225 Difference]: With dead ends: 942 [2022-03-01 14:57:52,695 INFO L226 Difference]: Without dead ends: 942 [2022-03-01 14:57:52,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-03-01 14:57:52,696 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 238 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 14:57:52,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 476 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 14:57:52,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-03-01 14:57:52,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2022-03-01 14:57:52,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 941 states have (on average 1.953241232731137) internal successors, (1838), 941 states have internal predecessors, (1838), 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) [2022-03-01 14:57:52,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1838 transitions. [2022-03-01 14:57:52,714 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1838 transitions. Word has length 94 [2022-03-01 14:57:52,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:57:52,715 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1838 transitions. [2022-03-01 14:57:52,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 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) [2022-03-01 14:57:52,716 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1838 transitions. [2022-03-01 14:57:52,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-01 14:57:52,717 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:57:52,717 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:57:52,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-01 14:57:52,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 14:57:52,934 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 14:57:52,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:57:52,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1938419579, now seen corresponding path program 3 times [2022-03-01 14:57:52,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:57:52,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308580408] [2022-03-01 14:57:52,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:57:52,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:57:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:57:53,029 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-01 14:57:53,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:57:53,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308580408] [2022-03-01 14:57:53,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308580408] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 14:57:53,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371118029] [2022-03-01 14:57:53,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 14:57:53,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 14:57:53,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 14:57:53,047 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) [2022-03-01 14:57:53,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-01 14:57:53,111 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-03-01 14:57:53,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 14:57:53,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-01 14:57:53,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 14:57:53,307 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-01 14:57:53,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 14:57:53,503 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-01 14:57:53,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371118029] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 14:57:53,504 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 14:57:53,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2022-03-01 14:57:53,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180608525] [2022-03-01 14:57:53,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 14:57:53,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-01 14:57:53,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:57:53,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-01 14:57:53,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2022-03-01 14:57:53,511 INFO L87 Difference]: Start difference. First operand 942 states and 1838 transitions. Second operand has 23 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 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) [2022-03-01 14:57:57,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:57:57,297 INFO L93 Difference]: Finished difference Result 2254 states and 4462 transitions. [2022-03-01 14:57:57,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-01 14:57:57,297 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 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 104 [2022-03-01 14:57:57,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:57:57,305 INFO L225 Difference]: With dead ends: 2254 [2022-03-01 14:57:57,306 INFO L226 Difference]: Without dead ends: 2254 [2022-03-01 14:57:57,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23820 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=10782, Invalid=42348, Unknown=0, NotChecked=0, Total=53130 [2022-03-01 14:57:57,322 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 3103 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3103 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 14:57:57,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3103 Valid, 1201 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 14:57:57,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2022-03-01 14:57:57,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 1966. [2022-03-01 14:57:57,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1966 states, 1965 states have (on average 1.9776081424936387) internal successors, (3886), 1965 states have internal predecessors, (3886), 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) [2022-03-01 14:57:57,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 3886 transitions. [2022-03-01 14:57:57,379 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 3886 transitions. Word has length 104 [2022-03-01 14:57:57,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:57:57,379 INFO L470 AbstractCegarLoop]: Abstraction has 1966 states and 3886 transitions. [2022-03-01 14:57:57,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 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) [2022-03-01 14:57:57,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 3886 transitions. [2022-03-01 14:57:57,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-01 14:57:57,386 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:57:57,386 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:57:57,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-01 14:57:57,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 14:57:57,587 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 14:57:57,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:57:57,587 INFO L85 PathProgramCache]: Analyzing trace with hash -2014099754, now seen corresponding path program 4 times [2022-03-01 14:57:57,587 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:57:57,587 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998790138] [2022-03-01 14:57:57,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:57:57,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:57:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:57:57,722 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-01 14:57:57,722 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:57:57,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998790138] [2022-03-01 14:57:57,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998790138] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 14:57:57,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151898002] [2022-03-01 14:57:57,722 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-01 14:57:57,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 14:57:57,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 14:57:57,740 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 14:57:57,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-01 14:57:57,807 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-01 14:57:57,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 14:57:57,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-01 14:57:57,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 14:57:57,948 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-01 14:57:57,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 14:57:58,173 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-01 14:57:58,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151898002] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 14:57:58,173 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 14:57:58,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-03-01 14:57:58,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135279035] [2022-03-01 14:57:58,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 14:57:58,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-01 14:57:58,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:57:58,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-01 14:57:58,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2022-03-01 14:57:58,175 INFO L87 Difference]: Start difference. First operand 1966 states and 3886 transitions. Second operand has 22 states, 22 states have (on average 6.7272727272727275) internal successors, (148), 22 states have internal predecessors, (148), 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) [2022-03-01 14:57:58,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:57:58,383 INFO L93 Difference]: Finished difference Result 3886 states and 7726 transitions. [2022-03-01 14:57:58,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-01 14:57:58,383 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.7272727272727275) internal successors, (148), 22 states have internal predecessors, (148), 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 132 [2022-03-01 14:57:58,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:57:58,395 INFO L225 Difference]: With dead ends: 3886 [2022-03-01 14:57:58,395 INFO L226 Difference]: Without dead ends: 3886 [2022-03-01 14:57:58,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=448, Invalid=958, Unknown=0, NotChecked=0, Total=1406 [2022-03-01 14:57:58,396 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 1368 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 14:57:58,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1368 Valid, 683 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 14:57:58,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3886 states. [2022-03-01 14:57:58,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3886 to 3886. [2022-03-01 14:57:58,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3886 states, 3885 states have (on average 1.9886743886743887) internal successors, (7726), 3885 states have internal predecessors, (7726), 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) [2022-03-01 14:57:58,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 7726 transitions. [2022-03-01 14:57:58,460 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 7726 transitions. Word has length 132 [2022-03-01 14:57:58,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:57:58,460 INFO L470 AbstractCegarLoop]: Abstraction has 3886 states and 7726 transitions. [2022-03-01 14:57:58,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.7272727272727275) internal successors, (148), 22 states have internal predecessors, (148), 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) [2022-03-01 14:57:58,460 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 7726 transitions. [2022-03-01 14:57:58,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-01 14:57:58,467 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:57:58,467 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:57:58,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-01 14:57:58,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 14:57:58,684 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 14:57:58,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:57:58,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1208923555, now seen corresponding path program 5 times [2022-03-01 14:57:58,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:57:58,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477800389] [2022-03-01 14:57:58,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:57:58,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:57:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:57:58,885 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-01 14:57:58,885 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:57:58,885 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477800389] [2022-03-01 14:57:58,885 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477800389] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 14:57:58,885 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132896707] [2022-03-01 14:57:58,885 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-01 14:57:58,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 14:57:58,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 14:57:58,900 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 14:57:58,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-01 14:57:58,978 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2022-03-01 14:57:58,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 14:57:58,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-01 14:57:58,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 14:57:59,238 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-01 14:57:59,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 14:57:59,753 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-01 14:57:59,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132896707] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 14:57:59,753 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 14:57:59,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 42 [2022-03-01 14:57:59,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417034355] [2022-03-01 14:57:59,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 14:57:59,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-03-01 14:57:59,754 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:57:59,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-03-01 14:57:59,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=462, Invalid=1260, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 14:57:59,755 INFO L87 Difference]: Start difference. First operand 3886 states and 7726 transitions. Second operand has 42 states, 42 states have (on average 5.428571428571429) internal successors, (228), 42 states have internal predecessors, (228), 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) [2022-03-01 14:58:00,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:58:00,568 INFO L93 Difference]: Finished difference Result 7726 states and 15406 transitions. [2022-03-01 14:58:00,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-01 14:58:00,569 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 5.428571428571429) internal successors, (228), 42 states have internal predecessors, (228), 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 172 [2022-03-01 14:58:00,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:58:00,594 INFO L225 Difference]: With dead ends: 7726 [2022-03-01 14:58:00,595 INFO L226 Difference]: Without dead ends: 7726 [2022-03-01 14:58:00,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1335 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1888, Invalid=4118, Unknown=0, NotChecked=0, Total=6006 [2022-03-01 14:58:00,597 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 3134 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3134 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 14:58:00,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3134 Valid, 1496 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 14:58:00,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7726 states. [2022-03-01 14:58:00,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7726 to 7726. [2022-03-01 14:58:00,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 1.994304207119741) internal successors, (15406), 7725 states have internal predecessors, (15406), 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) [2022-03-01 14:58:00,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 15406 transitions. [2022-03-01 14:58:00,760 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 15406 transitions. Word has length 172 [2022-03-01 14:58:00,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:58:00,761 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 15406 transitions. [2022-03-01 14:58:00,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 5.428571428571429) internal successors, (228), 42 states have internal predecessors, (228), 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) [2022-03-01 14:58:00,761 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 15406 transitions. [2022-03-01 14:58:00,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-03-01 14:58:00,776 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:58:00,776 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:58:00,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-01 14:58:00,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 14:58:00,994 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 14:58:00,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:58:00,995 INFO L85 PathProgramCache]: Analyzing trace with hash -354199445, now seen corresponding path program 6 times [2022-03-01 14:58:00,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:58:00,995 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925364381] [2022-03-01 14:58:00,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:58:00,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:58:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:58:01,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1499 backedges. 0 proven. 1387 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-01 14:58:01,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:58:01,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925364381] [2022-03-01 14:58:01,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925364381] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 14:58:01,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82839317] [2022-03-01 14:58:01,600 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-01 14:58:01,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 14:58:01,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 14:58:01,605 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 14:58:01,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-01 14:58:01,716 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-03-01 14:58:01,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 14:58:01,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 16 conjunts are in the unsatisfiable core [2022-03-01 14:58:01,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 14:58:02,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1499 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2022-03-01 14:58:02,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 14:58:02,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1499 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2022-03-01 14:58:02,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82839317] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 14:58:02,936 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 14:58:02,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 17, 17] total 71 [2022-03-01 14:58:02,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210351990] [2022-03-01 14:58:02,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 14:58:02,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-03-01 14:58:02,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:58:02,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-03-01 14:58:02,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=711, Invalid=4259, Unknown=0, NotChecked=0, Total=4970 [2022-03-01 14:58:02,938 INFO L87 Difference]: Start difference. First operand 7726 states and 15406 transitions. Second operand has 71 states, 71 states have (on average 4.380281690140845) internal successors, (311), 71 states have internal predecessors, (311), 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) [2022-03-01 15:02:43,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:02:43,260 INFO L93 Difference]: Finished difference Result 14830 states and 29614 transitions. [2022-03-01 15:02:43,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2597 states. [2022-03-01 15:02:43,261 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 4.380281690140845) internal successors, (311), 71 states have internal predecessors, (311), 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 252 [2022-03-01 15:02:43,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:02:43,300 INFO L225 Difference]: With dead ends: 14830 [2022-03-01 15:02:43,300 INFO L226 Difference]: Without dead ends: 14830 [2022-03-01 15:02:44,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5663 GetRequests, 3034 SyntacticMatches, 0 SemanticMatches, 2629 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3589725 ImplicationChecksByTransitivity, 257.4s TimeCoverageRelationStatistics Valid=1149550, Invalid=5769980, Unknown=0, NotChecked=0, Total=6919530 [2022-03-01 15:02:44,133 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 33146 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 5208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33146 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 6110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5208 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:02:44,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33146 Valid, 2729 Invalid, 6110 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5208 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-01 15:02:44,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14830 states. [2022-03-01 15:02:44,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14830 to 14830. [2022-03-01 15:02:44,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14830 states, 14829 states have (on average 1.99703284105469) internal successors, (29614), 14829 states have internal predecessors, (29614), 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) [2022-03-01 15:02:44,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14830 states to 14830 states and 29614 transitions. [2022-03-01 15:02:44,367 INFO L78 Accepts]: Start accepts. Automaton has 14830 states and 29614 transitions. Word has length 252 [2022-03-01 15:02:44,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:02:44,367 INFO L470 AbstractCegarLoop]: Abstraction has 14830 states and 29614 transitions. [2022-03-01 15:02:44,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 4.380281690140845) internal successors, (311), 71 states have internal predecessors, (311), 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) [2022-03-01 15:02:44,368 INFO L276 IsEmpty]: Start isEmpty. Operand 14830 states and 29614 transitions. [2022-03-01 15:02:44,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-03-01 15:02:44,393 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:02:44,393 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:02:44,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-01 15:02:44,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:02:44,607 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 15:02:44,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:02:44,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1770731514, now seen corresponding path program 7 times [2022-03-01 15:02:44,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:02:44,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860148512] [2022-03-01 15:02:44,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:02:44,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:02:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:02:45,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:02:45,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:02:45,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860148512] [2022-03-01 15:02:45,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860148512] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:02:45,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149956395] [2022-03-01 15:02:45,306 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-01 15:02:45,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:02:45,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:02:45,308 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 15:02:45,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-01 15:02:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:02:45,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-01 15:02:45,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:02:46,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-03-01 15:02:46,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:02:47,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-03-01 15:02:47,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149956395] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:02:47,353 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:02:47,353 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 33, 33] total 100 [2022-03-01 15:02:47,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115009200] [2022-03-01 15:02:47,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:02:47,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-03-01 15:02:47,354 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:02:47,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-03-01 15:02:47,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1398, Invalid=8502, Unknown=0, NotChecked=0, Total=9900 [2022-03-01 15:02:47,356 INFO L87 Difference]: Start difference. First operand 14830 states and 29614 transitions. Second operand has 100 states, 100 states have (on average 4.51) internal successors, (451), 100 states have internal predecessors, (451), 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) Received shutdown request... [2022-03-01 15:09:58,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2912 states. [2022-03-01 15:09:58,205 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-01 15:09:58,205 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-01 15:09:58,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6296 GetRequests, 3287 SyntacticMatches, 1 SemanticMatches, 3007 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5252385 ImplicationChecksByTransitivity, 201.8s TimeCoverageRelationStatistics Valid=1751528, Invalid=7299544, Unknown=0, NotChecked=0, Total=9051072 [2022-03-01 15:09:58,891 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 22641 mSDsluCounter, 3703 mSDsCounter, 0 mSdLazyCounter, 2624 mSolverCounterSat, 10544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22641 SdHoareTripleChecker+Valid, 3785 SdHoareTripleChecker+Invalid, 13168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10544 IncrementalHoareTripleChecker+Valid, 2624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:09:58,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22641 Valid, 3785 Invalid, 13168 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10544 Valid, 2624 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-03-01 15:09:58,893 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-03-01 15:09:58,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-01 15:09:59,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-01 15:09:59,110 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (14830states) and FLOYD_HOARE automaton (currently 2912 states, 100 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 3009 known predicates. [2022-03-01 15:09:59,112 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-01 15:09:59,114 INFO L732 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1] [2022-03-01 15:09:59,116 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 15:09:59,116 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 15:09:59,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 03:09:59 BasicIcfg [2022-03-01 15:09:59,117 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 15:09:59,118 INFO L158 Benchmark]: Toolchain (without parser) took 729979.84ms. Allocated memory was 215.0MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 186.6MB in the beginning and 5.4GB in the end (delta: -5.2GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2022-03-01 15:09:59,118 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 215.0MB. Free memory is still 175.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 15:09:59,118 INFO L158 Benchmark]: CACSL2BoogieTranslator took 644.51ms. Allocated memory was 215.0MB in the beginning and 302.0MB in the end (delta: 87.0MB). Free memory was 186.6MB in the beginning and 245.3MB in the end (delta: -58.7MB). Peak memory consumption was 28.8MB. Max. memory is 8.0GB. [2022-03-01 15:09:59,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.17ms. Allocated memory is still 302.0MB. Free memory was 245.3MB in the beginning and 242.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-01 15:09:59,118 INFO L158 Benchmark]: Boogie Preprocessor took 28.33ms. Allocated memory is still 302.0MB. Free memory was 242.7MB in the beginning and 241.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 15:09:59,118 INFO L158 Benchmark]: RCFGBuilder took 339.23ms. Allocated memory is still 302.0MB. Free memory was 241.6MB in the beginning and 228.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-03-01 15:09:59,119 INFO L158 Benchmark]: TraceAbstraction took 728911.71ms. Allocated memory was 302.0MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 227.5MB in the beginning and 5.4GB in the end (delta: -5.2GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2022-03-01 15:09:59,119 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 215.0MB. Free memory is still 175.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 644.51ms. Allocated memory was 215.0MB in the beginning and 302.0MB in the end (delta: 87.0MB). Free memory was 186.6MB in the beginning and 245.3MB in the end (delta: -58.7MB). Peak memory consumption was 28.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.17ms. Allocated memory is still 302.0MB. Free memory was 245.3MB in the beginning and 242.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.33ms. Allocated memory is still 302.0MB. Free memory was 242.7MB in the beginning and 241.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 339.23ms. Allocated memory is still 302.0MB. Free memory was 241.6MB in the beginning and 228.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 728911.71ms. Allocated memory was 302.0MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 227.5MB in the beginning and 5.4GB in the end (delta: -5.2GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (14830states) and FLOYD_HOARE automaton (currently 2912 states, 100 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 3009 known predicates. - TimeoutResultAtElement [Line: 1336]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (14830states) and FLOYD_HOARE automaton (currently 2912 states, 100 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 3009 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 110 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 728.8s, OverallIterations: 10, TraceHistogramMax: 20, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 717.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63909 SdHoareTripleChecker+Valid, 9.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63909 mSDsluCounter, 11267 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10321 mSDsCounter, 16138 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4147 IncrementalHoareTripleChecker+Invalid, 20285 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16138 mSolverCounterUnsat, 1019 mSDtfsCounter, 4147 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13778 GetRequests, 7770 SyntacticMatches, 1 SemanticMatches, 6006 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8867598 ImplicationChecksByTransitivity, 463.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14830occurred in iteration=9, InterpolantAutomatonStates: 2928, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 438 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 2540 NumberOfCodeBlocks, 2500 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 3647 ConstructedInterpolants, 0 QuantifiedInterpolants, 5874 SizeOfPredicates, 80 NumberOfNonLiveVariables, 2259 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 25 InterpolantComputations, 3 PerfectInterpolantSequences, 6795/12683 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown