/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-17 23:30:46,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-17 23:30:46,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-17 23:30:46,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-17 23:30:47,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-17 23:30:47,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-17 23:30:47,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-17 23:30:47,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-17 23:30:47,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-17 23:30:47,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-17 23:30:47,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-17 23:30:47,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-17 23:30:47,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-17 23:30:47,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-17 23:30:47,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-17 23:30:47,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-17 23:30:47,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-17 23:30:47,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-17 23:30:47,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-17 23:30:47,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-17 23:30:47,025 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-17 23:30:47,046 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-17 23:30:47,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-17 23:30:47,046 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-17 23:30:47,046 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-17 23:30:47,047 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-17 23:30:47,047 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-17 23:30:47,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-17 23:30:47,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-17 23:30:47,048 INFO L138 SettingsManager]: * Use SBE=true [2022-01-17 23:30:47,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-17 23:30:47,048 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-17 23:30:47,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-17 23:30:47,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-17 23:30:47,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-17 23:30:47,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-17 23:30:47,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-17 23:30:47,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-17 23:30:47,049 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-17 23:30:47,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-17 23:30:47,049 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-17 23:30:47,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-17 23:30:47,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-17 23:30:47,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-17 23:30:47,050 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-17 23:30:47,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-17 23:30:47,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:30:47,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-17 23:30:47,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-17 23:30:47,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-17 23:30:47,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-17 23:30:47,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-17 23:30:47,051 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-17 23:30:47,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-17 23:30:47,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-17 23:30:47,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-17 23:30:47,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-17 23:30:47,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-17 23:30:47,251 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-17 23:30:47,255 INFO L275 PluginConnector]: CDTParser initialized [2022-01-17 23:30:47,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-2.i [2022-01-17 23:30:47,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6175a772d/db41c30074cb470e85c4c35cdae1fee7/FLAGa5d72f844 [2022-01-17 23:30:47,692 INFO L306 CDTParser]: Found 1 translation units. [2022-01-17 23:30:47,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-2.i [2022-01-17 23:30:47,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6175a772d/db41c30074cb470e85c4c35cdae1fee7/FLAGa5d72f844 [2022-01-17 23:30:48,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6175a772d/db41c30074cb470e85c4c35cdae1fee7 [2022-01-17 23:30:48,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-17 23:30:48,046 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-17 23:30:48,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-17 23:30:48,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-17 23:30:48,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-17 23:30:48,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:30:48" (1/1) ... [2022-01-17 23:30:48,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284e9b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:48, skipping insertion in model container [2022-01-17 23:30:48,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:30:48" (1/1) ... [2022-01-17 23:30:48,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-17 23:30:48,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-17 23:30:48,292 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] [2022-01-17 23:30:48,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:30:48,547 INFO L203 MainTranslator]: Completed pre-run [2022-01-17 23:30:48,555 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] [2022-01-17 23:30:48,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:30:48,645 INFO L208 MainTranslator]: Completed translation [2022-01-17 23:30:48,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:48 WrapperNode [2022-01-17 23:30:48,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-17 23:30:48,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-17 23:30:48,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-17 23:30:48,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-17 23:30:48,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:48" (1/1) ... [2022-01-17 23:30:48,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:48" (1/1) ... [2022-01-17 23:30:48,689 INFO L137 Inliner]: procedures = 363, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2022-01-17 23:30:48,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-17 23:30:48,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-17 23:30:48,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-17 23:30:48,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-17 23:30:48,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:48" (1/1) ... [2022-01-17 23:30:48,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:48" (1/1) ... [2022-01-17 23:30:48,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:48" (1/1) ... [2022-01-17 23:30:48,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:48" (1/1) ... [2022-01-17 23:30:48,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:48" (1/1) ... [2022-01-17 23:30:48,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:48" (1/1) ... [2022-01-17 23:30:48,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:48" (1/1) ... [2022-01-17 23:30:48,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-17 23:30:48,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-17 23:30:48,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-17 23:30:48,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-17 23:30:48,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:48" (1/1) ... [2022-01-17 23:30:48,715 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:30:48,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:30:48,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-17 23:30:48,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-17 23:30:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-17 23:30:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-17 23:30:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-17 23:30:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2022-01-17 23:30:48,768 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2022-01-17 23:30:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-17 23:30:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-17 23:30:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-17 23:30:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-17 23:30:48,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-17 23:30:48,770 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-17 23:30:48,866 INFO L234 CfgBuilder]: Building ICFG [2022-01-17 23:30:48,867 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-17 23:30:49,028 INFO L275 CfgBuilder]: Performing block encoding [2022-01-17 23:30:49,034 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-17 23:30:49,035 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-17 23:30:49,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:30:49 BoogieIcfgContainer [2022-01-17 23:30:49,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-17 23:30:49,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-17 23:30:49,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-17 23:30:49,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-17 23:30:49,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.01 11:30:48" (1/3) ... [2022-01-17 23:30:49,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c0f789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:30:49, skipping insertion in model container [2022-01-17 23:30:49,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:48" (2/3) ... [2022-01-17 23:30:49,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c0f789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:30:49, skipping insertion in model container [2022-01-17 23:30:49,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:30:49" (3/3) ... [2022-01-17 23:30:49,041 INFO L111 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-2.i [2022-01-17 23:30:49,045 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-17 23:30:49,045 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-17 23:30:49,045 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-17 23:30:49,046 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-17 23:30:49,067 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,068 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,068 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,068 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,068 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,068 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,068 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,069 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,069 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,069 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,069 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,069 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,069 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,070 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,070 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,070 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,071 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,071 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,071 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,071 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,071 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,072 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,072 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,072 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,072 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,072 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,073 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,073 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,073 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,073 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,073 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,073 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,074 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,074 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,074 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,074 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,074 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,074 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,074 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,075 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,075 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,075 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,077 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,077 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,078 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,078 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,078 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,078 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,078 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,078 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:49,092 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-17 23:30:49,123 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-17 23:30:49,129 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-17 23:30:49,129 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-17 23:30:49,138 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 100 transitions, 208 flow [2022-01-17 23:30:49,204 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) [2022-01-17 23:30:49,207 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) [2022-01-17 23:30:49,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-17 23:30:49,221 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:49,222 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] [2022-01-17 23:30:49,222 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:49,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:49,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1531138945, now seen corresponding path program 1 times [2022-01-17 23:30:49,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:49,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409807864] [2022-01-17 23:30:49,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:49,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:49,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:49,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:49,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409807864] [2022-01-17 23:30:49,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409807864] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:49,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:49,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-17 23:30:49,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67090716] [2022-01-17 23:30:49,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:49,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-17 23:30:49,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:49,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-17 23:30:49,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-17 23:30:49,544 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) [2022-01-17 23:30:49,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:49,582 INFO L93 Difference]: Finished difference Result 346 states and 646 transitions. [2022-01-17 23:30:49,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-17 23:30:49,584 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 [2022-01-17 23:30:49,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:49,601 INFO L225 Difference]: With dead ends: 346 [2022-01-17 23:30:49,602 INFO L226 Difference]: Without dead ends: 301 [2022-01-17 23:30:49,604 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 [2022-01-17 23:30:49,606 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 [2022-01-17 23:30:49,607 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] [2022-01-17 23:30:49,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-01-17 23:30:49,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2022-01-17 23:30:49,674 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) [2022-01-17 23:30:49,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 556 transitions. [2022-01-17 23:30:49,678 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 556 transitions. Word has length 65 [2022-01-17 23:30:49,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:49,678 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 556 transitions. [2022-01-17 23:30:49,678 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) [2022-01-17 23:30:49,679 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 556 transitions. [2022-01-17 23:30:49,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-17 23:30:49,684 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:49,684 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] [2022-01-17 23:30:49,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-17 23:30:49,685 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:49,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:49,685 INFO L85 PathProgramCache]: Analyzing trace with hash 2061601119, now seen corresponding path program 1 times [2022-01-17 23:30:49,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:49,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647446742] [2022-01-17 23:30:49,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:49,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:49,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:49,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:49,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647446742] [2022-01-17 23:30:49,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647446742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:49,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:49,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-17 23:30:49,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688922082] [2022-01-17 23:30:49,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:49,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-17 23:30:49,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:49,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-17 23:30:49,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-17 23:30:49,794 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) [2022-01-17 23:30:49,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:49,814 INFO L93 Difference]: Finished difference Result 420 states and 794 transitions. [2022-01-17 23:30:49,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-17 23:30:49,815 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 [2022-01-17 23:30:49,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:49,817 INFO L225 Difference]: With dead ends: 420 [2022-01-17 23:30:49,817 INFO L226 Difference]: Without dead ends: 420 [2022-01-17 23:30:49,817 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 [2022-01-17 23:30:49,819 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 [2022-01-17 23:30:49,819 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] [2022-01-17 23:30:49,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-01-17 23:30:49,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 318. [2022-01-17 23:30:49,828 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) [2022-01-17 23:30:49,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 590 transitions. [2022-01-17 23:30:49,829 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 590 transitions. Word has length 65 [2022-01-17 23:30:49,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:49,830 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 590 transitions. [2022-01-17 23:30:49,830 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) [2022-01-17 23:30:49,830 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 590 transitions. [2022-01-17 23:30:49,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-17 23:30:49,832 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:49,832 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] [2022-01-17 23:30:49,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-17 23:30:49,832 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:49,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:49,833 INFO L85 PathProgramCache]: Analyzing trace with hash -296287088, now seen corresponding path program 1 times [2022-01-17 23:30:49,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:49,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661807016] [2022-01-17 23:30:49,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:49,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:49,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:49,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:49,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661807016] [2022-01-17 23:30:49,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661807016] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:30:49,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647359298] [2022-01-17 23:30:49,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:49,906 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:49,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:30:49,909 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) [2022-01-17 23:30:49,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-17 23:30:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:50,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-17 23:30:50,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:30:50,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-17 23:30:50,228 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-17 23:30:50,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647359298] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:50,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-17 23:30:50,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-17 23:30:50,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497172962] [2022-01-17 23:30:50,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:50,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-17 23:30:50,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:50,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-17 23:30:50,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:30:50,230 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) [2022-01-17 23:30:50,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:50,245 INFO L93 Difference]: Finished difference Result 382 states and 718 transitions. [2022-01-17 23:30:50,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-17 23:30:50,246 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 [2022-01-17 23:30:50,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:50,248 INFO L225 Difference]: With dead ends: 382 [2022-01-17 23:30:50,248 INFO L226 Difference]: Without dead ends: 382 [2022-01-17 23:30:50,248 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 [2022-01-17 23:30:50,249 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 [2022-01-17 23:30:50,250 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] [2022-01-17 23:30:50,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-01-17 23:30:50,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 334. [2022-01-17 23:30:50,256 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) [2022-01-17 23:30:50,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 622 transitions. [2022-01-17 23:30:50,257 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 622 transitions. Word has length 73 [2022-01-17 23:30:50,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:50,258 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 622 transitions. [2022-01-17 23:30:50,258 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) [2022-01-17 23:30:50,258 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 622 transitions. [2022-01-17 23:30:50,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-17 23:30:50,260 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:50,260 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] [2022-01-17 23:30:50,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-17 23:30:50,479 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 [2022-01-17 23:30:50,480 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:50,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:50,480 INFO L85 PathProgramCache]: Analyzing trace with hash 2135479359, now seen corresponding path program 1 times [2022-01-17 23:30:50,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:50,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097648685] [2022-01-17 23:30:50,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:50,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:50,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-17 23:30:50,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:50,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097648685] [2022-01-17 23:30:50,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097648685] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:30:50,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094109913] [2022-01-17 23:30:50,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:50,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:50,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:30:50,532 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) [2022-01-17 23:30:50,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-17 23:30:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:50,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-17 23:30:50,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:30:50,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-17 23:30:50,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:30:50,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-17 23:30:50,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094109913] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:30:50,944 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:30:50,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-17 23:30:50,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224027144] [2022-01-17 23:30:50,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:30:50,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-17 23:30:50,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:50,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-17 23:30:50,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-17 23:30:50,947 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) [2022-01-17 23:30:51,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:51,018 INFO L93 Difference]: Finished difference Result 622 states and 1198 transitions. [2022-01-17 23:30:51,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:30:51,019 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 [2022-01-17 23:30:51,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:51,022 INFO L225 Difference]: With dead ends: 622 [2022-01-17 23:30:51,022 INFO L226 Difference]: Without dead ends: 622 [2022-01-17 23:30:51,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-17 23:30:51,023 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 [2022-01-17 23:30:51,024 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] [2022-01-17 23:30:51,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-01-17 23:30:51,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2022-01-17 23:30:51,036 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) [2022-01-17 23:30:51,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1198 transitions. [2022-01-17 23:30:51,038 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1198 transitions. Word has length 78 [2022-01-17 23:30:51,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:51,038 INFO L470 AbstractCegarLoop]: Abstraction has 622 states and 1198 transitions. [2022-01-17 23:30:51,039 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) [2022-01-17 23:30:51,039 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1198 transitions. [2022-01-17 23:30:51,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-17 23:30:51,040 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:51,041 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] [2022-01-17 23:30:51,066 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-17 23:30:51,255 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 [2022-01-17 23:30:51,256 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:51,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:51,256 INFO L85 PathProgramCache]: Analyzing trace with hash -758795275, now seen corresponding path program 2 times [2022-01-17 23:30:51,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:51,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30989107] [2022-01-17 23:30:51,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:51,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:51,334 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-17 23:30:51,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:51,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30989107] [2022-01-17 23:30:51,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30989107] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:30:51,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181201919] [2022-01-17 23:30:51,337 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-17 23:30:51,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:51,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:30:51,339 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) [2022-01-17 23:30:51,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-17 23:30:51,417 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-17 23:30:51,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:30:51,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-17 23:30:51,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:30:51,565 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-17 23:30:51,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:30:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-17 23:30:51,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181201919] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:30:51,697 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:30:51,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-17 23:30:51,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511543913] [2022-01-17 23:30:51,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:30:51,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-17 23:30:51,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:51,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-17 23:30:51,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-17 23:30:51,699 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) [2022-01-17 23:30:51,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:51,788 INFO L93 Difference]: Finished difference Result 942 states and 1838 transitions. [2022-01-17 23:30:51,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:30:51,789 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 [2022-01-17 23:30:51,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:51,792 INFO L225 Difference]: With dead ends: 942 [2022-01-17 23:30:51,792 INFO L226 Difference]: Without dead ends: 942 [2022-01-17 23:30:51,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-17 23:30:51,793 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 [2022-01-17 23:30:51,794 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] [2022-01-17 23:30:51,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-01-17 23:30:51,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2022-01-17 23:30:51,808 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) [2022-01-17 23:30:51,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1838 transitions. [2022-01-17 23:30:51,811 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1838 transitions. Word has length 94 [2022-01-17 23:30:51,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:51,812 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1838 transitions. [2022-01-17 23:30:51,812 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) [2022-01-17 23:30:51,812 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1838 transitions. [2022-01-17 23:30:51,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-17 23:30:51,814 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:51,814 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] [2022-01-17 23:30:51,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-17 23:30:52,035 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 [2022-01-17 23:30:52,036 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:52,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:52,036 INFO L85 PathProgramCache]: Analyzing trace with hash 169537301, now seen corresponding path program 3 times [2022-01-17 23:30:52,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:52,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206436285] [2022-01-17 23:30:52,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:52,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:52,114 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-17 23:30:52,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:52,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206436285] [2022-01-17 23:30:52,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206436285] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:30:52,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043932572] [2022-01-17 23:30:52,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-17 23:30:52,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:52,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:30:52,117 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) [2022-01-17 23:30:52,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-17 23:30:52,196 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-01-17 23:30:52,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:30:52,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-17 23:30:52,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:30:52,417 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-17 23:30:52,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:30:52,614 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-17 23:30:52,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043932572] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:30:52,614 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:30:52,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2022-01-17 23:30:52,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090814305] [2022-01-17 23:30:52,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:30:52,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-17 23:30:52,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:52,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-17 23:30:52,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2022-01-17 23:30:52,617 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) [2022-01-17 23:30:56,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:56,912 INFO L93 Difference]: Finished difference Result 2254 states and 4462 transitions. [2022-01-17 23:30:56,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-01-17 23:30:56,913 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 [2022-01-17 23:30:56,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:56,921 INFO L225 Difference]: With dead ends: 2254 [2022-01-17 23:30:56,921 INFO L226 Difference]: Without dead ends: 2254 [2022-01-17 23:30:56,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23820 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=10782, Invalid=42348, Unknown=0, NotChecked=0, Total=53130 [2022-01-17 23:30:56,939 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 [2022-01-17 23:30:56,939 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] [2022-01-17 23:30:56,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2022-01-17 23:30:56,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 1966. [2022-01-17 23:30:56,970 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) [2022-01-17 23:30:56,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 3886 transitions. [2022-01-17 23:30:56,976 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 3886 transitions. Word has length 104 [2022-01-17 23:30:56,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:56,976 INFO L470 AbstractCegarLoop]: Abstraction has 1966 states and 3886 transitions. [2022-01-17 23:30:56,977 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) [2022-01-17 23:30:56,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 3886 transitions. [2022-01-17 23:30:56,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-17 23:30:56,980 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:56,981 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] [2022-01-17 23:30:57,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-17 23:30:57,195 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 [2022-01-17 23:30:57,195 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:57,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:57,196 INFO L85 PathProgramCache]: Analyzing trace with hash 355416944, now seen corresponding path program 4 times [2022-01-17 23:30:57,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:57,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908904665] [2022-01-17 23:30:57,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:57,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:57,315 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-01-17 23:30:57,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:57,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908904665] [2022-01-17 23:30:57,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908904665] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:30:57,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028961672] [2022-01-17 23:30:57,315 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-17 23:30:57,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:57,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:30:57,339 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) [2022-01-17 23:30:57,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-17 23:30:57,406 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-17 23:30:57,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:30:57,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-17 23:30:57,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:30:57,636 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-01-17 23:30:57,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:30:57,910 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-01-17 23:30:57,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028961672] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:30:57,911 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:30:57,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-01-17 23:30:57,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053950604] [2022-01-17 23:30:57,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:30:57,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:30:57,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:57,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:30:57,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:30:57,912 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) [2022-01-17 23:30:58,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:58,174 INFO L93 Difference]: Finished difference Result 3886 states and 7726 transitions. [2022-01-17 23:30:58,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:30:58,174 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 [2022-01-17 23:30:58,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:58,187 INFO L225 Difference]: With dead ends: 3886 [2022-01-17 23:30:58,187 INFO L226 Difference]: Without dead ends: 3886 [2022-01-17 23:30:58,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=448, Invalid=958, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:30:58,189 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 [2022-01-17 23:30:58,189 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] [2022-01-17 23:30:58,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3886 states. [2022-01-17 23:30:58,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3886 to 3886. [2022-01-17 23:30:58,273 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) [2022-01-17 23:30:58,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 7726 transitions. [2022-01-17 23:30:58,285 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 7726 transitions. Word has length 132 [2022-01-17 23:30:58,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:58,285 INFO L470 AbstractCegarLoop]: Abstraction has 3886 states and 7726 transitions. [2022-01-17 23:30:58,285 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) [2022-01-17 23:30:58,285 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 7726 transitions. [2022-01-17 23:30:58,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-01-17 23:30:58,295 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:58,295 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] [2022-01-17 23:30:58,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-01-17 23:30:58,507 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 [2022-01-17 23:30:58,508 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:58,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:58,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1870863607, now seen corresponding path program 5 times [2022-01-17 23:30:58,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:58,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423925191] [2022-01-17 23:30:58,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:58,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:58,758 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-01-17 23:30:58,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:58,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423925191] [2022-01-17 23:30:58,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423925191] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:30:58,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689444304] [2022-01-17 23:30:58,759 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-17 23:30:58,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:58,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:30:58,764 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) [2022-01-17 23:30:58,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-17 23:30:58,850 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2022-01-17 23:30:58,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:30:58,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-17 23:30:58,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:30:59,140 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-01-17 23:30:59,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:30:59,685 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-01-17 23:30:59,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689444304] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:30:59,685 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:30:59,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 42 [2022-01-17 23:30:59,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848610397] [2022-01-17 23:30:59,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:30:59,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-01-17 23:30:59,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:59,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-01-17 23:30:59,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=462, Invalid=1260, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:30:59,688 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) [2022-01-17 23:31:00,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:00,555 INFO L93 Difference]: Finished difference Result 7726 states and 15406 transitions. [2022-01-17 23:31:00,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-17 23:31:00,556 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 [2022-01-17 23:31:00,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:00,581 INFO L225 Difference]: With dead ends: 7726 [2022-01-17 23:31:00,581 INFO L226 Difference]: Without dead ends: 7726 [2022-01-17 23:31:00,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1335 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1888, Invalid=4118, Unknown=0, NotChecked=0, Total=6006 [2022-01-17 23:31:00,583 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 [2022-01-17 23:31:00,583 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] [2022-01-17 23:31:00,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7726 states. [2022-01-17 23:31:00,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7726 to 7726. [2022-01-17 23:31:00,716 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) [2022-01-17 23:31:00,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 15406 transitions. [2022-01-17 23:31:00,732 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 15406 transitions. Word has length 172 [2022-01-17 23:31:00,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:00,733 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 15406 transitions. [2022-01-17 23:31:00,733 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) [2022-01-17 23:31:00,733 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 15406 transitions. [2022-01-17 23:31:00,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-01-17 23:31:00,750 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:00,750 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] [2022-01-17 23:31:00,775 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-01-17 23:31:00,968 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 [2022-01-17 23:31:00,968 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:31:00,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:00,969 INFO L85 PathProgramCache]: Analyzing trace with hash -369170683, now seen corresponding path program 6 times [2022-01-17 23:31:00,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:00,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974878572] [2022-01-17 23:31:00,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:00,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:01,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1499 backedges. 0 proven. 1387 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-01-17 23:31:01,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:01,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974878572] [2022-01-17 23:31:01,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974878572] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:31:01,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360169595] [2022-01-17 23:31:01,676 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-17 23:31:01,676 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:31:01,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:31:01,680 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) [2022-01-17 23:31:01,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-17 23:31:01,803 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-01-17 23:31:01,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:31:01,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-17 23:31:01,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:31:02,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1499 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2022-01-17 23:31:02,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:31:03,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1499 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2022-01-17 23:31:03,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360169595] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:31:03,004 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:31:03,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 17, 17] total 71 [2022-01-17 23:31:03,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015939337] [2022-01-17 23:31:03,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:31:03,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-01-17 23:31:03,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:03,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-01-17 23:31:03,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=711, Invalid=4259, Unknown=0, NotChecked=0, Total=4970 [2022-01-17 23:31:03,007 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) [2022-01-17 23:36:40,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:36:40,201 INFO L93 Difference]: Finished difference Result 14830 states and 29614 transitions. [2022-01-17 23:36:40,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2597 states. [2022-01-17 23:36:40,202 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 [2022-01-17 23:36:40,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:36:40,242 INFO L225 Difference]: With dead ends: 14830 [2022-01-17 23:36:40,243 INFO L226 Difference]: Without dead ends: 14830 [2022-01-17 23:36:40,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5663 GetRequests, 3034 SyntacticMatches, 0 SemanticMatches, 2629 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3589725 ImplicationChecksByTransitivity, 318.0s TimeCoverageRelationStatistics Valid=1149550, Invalid=5769980, Unknown=0, NotChecked=0, Total=6919530 [2022-01-17 23:36:40,839 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 [2022-01-17 23:36:40,839 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] [2022-01-17 23:36:40,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14830 states. [2022-01-17 23:36:41,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14830 to 14830. [2022-01-17 23:36:41,144 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) [2022-01-17 23:36:41,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14830 states to 14830 states and 29614 transitions. [2022-01-17 23:36:41,183 INFO L78 Accepts]: Start accepts. Automaton has 14830 states and 29614 transitions. Word has length 252 [2022-01-17 23:36:41,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:36:41,183 INFO L470 AbstractCegarLoop]: Abstraction has 14830 states and 29614 transitions. [2022-01-17 23:36:41,184 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) [2022-01-17 23:36:41,184 INFO L276 IsEmpty]: Start isEmpty. Operand 14830 states and 29614 transitions. [2022-01-17 23:36:41,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-01-17 23:36:41,217 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:36:41,217 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] [2022-01-17 23:36:41,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-17 23:36:41,431 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 [2022-01-17 23:36:41,432 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:36:41,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:36:41,432 INFO L85 PathProgramCache]: Analyzing trace with hash -540869984, now seen corresponding path program 7 times [2022-01-17 23:36:41,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:36:41,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709039255] [2022-01-17 23:36:41,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:36:41,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:36:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:36:42,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:36:42,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:36:42,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709039255] [2022-01-17 23:36:42,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709039255] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:36:42,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212436436] [2022-01-17 23:36:42,530 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-17 23:36:42,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:36:42,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:36:42,531 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) [2022-01-17 23:36:42,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-17 23:36:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:36:42,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 32 conjunts are in the unsatisfiable core [2022-01-17 23:36:42,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:36:43,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-01-17 23:36:43,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:36:44,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-01-17 23:36:44,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212436436] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:36:44,502 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:36:44,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 33, 33] total 100 [2022-01-17 23:36:44,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933391807] [2022-01-17 23:36:44,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:36:44,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-01-17 23:36:44,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:36:44,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-01-17 23:36:44,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1398, Invalid=8502, Unknown=0, NotChecked=0, Total=9900 [2022-01-17 23:36:44,505 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... [2022-01-17 23:41:55,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2569 states. [2022-01-17 23:41:55,877 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 [2022-01-17 23:41:55,877 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 [2022-01-17 23:41:56,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5626 GetRequests, 2960 SyntacticMatches, 1 SemanticMatches, 2664 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4096781 ImplicationChecksByTransitivity, 169.9s TimeCoverageRelationStatistics Valid=1412703, Invalid=5692187, Unknown=0, NotChecked=0, Total=7104890 [2022-01-17 23:41:56,379 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 20297 mSDsluCounter, 3477 mSDsCounter, 0 mSdLazyCounter, 2375 mSolverCounterSat, 9478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20297 SdHoareTripleChecker+Valid, 3559 SdHoareTripleChecker+Invalid, 11853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9478 IncrementalHoareTripleChecker+Valid, 2375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:41:56,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20297 Valid, 3559 Invalid, 11853 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9478 Valid, 2375 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-01-17 23:41:56,381 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-17 23:41:56,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-17 23:41:56,581 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 [2022-01-17 23:41:56,582 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (14830states) and FLOYD_HOARE automaton (currently 2569 states, 100 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 2666 known predicates. [2022-01-17 23:41:56,583 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-17 23:41:56,585 INFO L732 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1] [2022-01-17 23:41:56,587 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-17 23:41:56,587 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-17 23:41:56,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.01 11:41:56 BasicIcfg [2022-01-17 23:41:56,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-17 23:41:56,589 INFO L158 Benchmark]: Toolchain (without parser) took 668542.96ms. Allocated memory was 375.4MB in the beginning and 14.9GB in the end (delta: 14.5GB). Free memory was 319.9MB in the beginning and 12.7GB in the end (delta: -12.4GB). Peak memory consumption was 2.1GB. Max. memory is 16.0GB. [2022-01-17 23:41:56,589 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 375.4MB. Free memory is still 339.4MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 23:41:56,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 598.65ms. Allocated memory is still 375.4MB. Free memory was 319.6MB in the beginning and 321.6MB in the end (delta: -2.1MB). Peak memory consumption was 18.6MB. Max. memory is 16.0GB. [2022-01-17 23:41:56,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.53ms. Allocated memory is still 375.4MB. Free memory was 321.6MB in the beginning and 318.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-17 23:41:56,590 INFO L158 Benchmark]: Boogie Preprocessor took 17.94ms. Allocated memory is still 375.4MB. Free memory was 318.5MB in the beginning and 317.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-17 23:41:56,590 INFO L158 Benchmark]: RCFGBuilder took 328.01ms. Allocated memory is still 375.4MB. Free memory was 317.4MB in the beginning and 303.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-17 23:41:56,590 INFO L158 Benchmark]: TraceAbstraction took 667551.86ms. Allocated memory was 375.4MB in the beginning and 14.9GB in the end (delta: 14.5GB). Free memory was 303.8MB in the beginning and 12.7GB in the end (delta: -12.4GB). Peak memory consumption was 2.1GB. Max. memory is 16.0GB. [2022-01-17 23:41:56,591 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 375.4MB. Free memory is still 339.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 598.65ms. Allocated memory is still 375.4MB. Free memory was 319.6MB in the beginning and 321.6MB in the end (delta: -2.1MB). Peak memory consumption was 18.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 42.53ms. Allocated memory is still 375.4MB. Free memory was 321.6MB in the beginning and 318.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 17.94ms. Allocated memory is still 375.4MB. Free memory was 318.5MB in the beginning and 317.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 328.01ms. Allocated memory is still 375.4MB. Free memory was 317.4MB in the beginning and 303.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 667551.86ms. Allocated memory was 375.4MB in the beginning and 14.9GB in the end (delta: 14.5GB). Free memory was 303.8MB in the beginning and 12.7GB in the end (delta: -12.4GB). Peak memory consumption was 2.1GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 2569 states, 100 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 2666 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 2569 states, 100 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 2666 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: 667.5s, OverallIterations: 10, TraceHistogramMax: 20, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 655.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61565 SdHoareTripleChecker+Valid, 8.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61565 mSDsluCounter, 11041 SdHoareTripleChecker+Invalid, 6.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10095 mSDsCounter, 15072 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3898 IncrementalHoareTripleChecker+Invalid, 18970 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15072 mSolverCounterUnsat, 1019 mSDtfsCounter, 3898 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13108 GetRequests, 7443 SyntacticMatches, 1 SemanticMatches, 5663 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7711994 ImplicationChecksByTransitivity, 493.1s 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: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 438 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.9s 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