/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-Separate.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 [2022-01-18 09:33:12,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 09:33:12,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 09:33:12,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 09:33:12,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 09:33:12,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 09:33:12,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 09:33:12,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 09:33:12,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 09:33:12,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 09:33:12,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 09:33:12,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 09:33:12,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 09:33:12,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 09:33:12,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 09:33:12,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 09:33:12,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 09:33:12,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 09:33:12,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 09:33:12,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 09:33:12,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 09:33:12,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 09:33:12,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 09:33:12,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 09:33:12,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 09:33:12,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 09:33:12,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 09:33:12,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 09:33:12,906 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-Separate.epf [2022-01-18 09:33:12,923 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 09:33:12,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 09:33:12,923 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 09:33:12,923 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 09:33:12,924 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 09:33:12,924 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 09:33:12,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 09:33:12,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 09:33:12,925 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 09:33:12,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 09:33:12,925 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 09:33:12,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 09:33:12,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 09:33:12,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 09:33:12,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 09:33:12,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 09:33:12,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 09:33:12,927 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 09:33:12,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 09:33:12,927 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 09:33:12,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 09:33:12,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 09:33:12,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 09:33:12,928 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 09:33:12,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 09:33:12,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:33:12,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 09:33:12,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 09:33:12,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 09:33:12,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 09:33:12,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 09:33:12,929 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 09:33:12,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 09:33:12,929 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 09:33:12,930 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 09:33:13,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 09:33:13,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 09:33:13,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 09:33:13,147 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 09:33:13,155 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 09:33:13,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-2.i [2022-01-18 09:33:13,225 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ab06aa40/b9bd5bf90d08410baaa9684e726c9373/FLAGe40a3a132 [2022-01-18 09:33:13,675 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 09:33:13,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-2.i [2022-01-18 09:33:13,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ab06aa40/b9bd5bf90d08410baaa9684e726c9373/FLAGe40a3a132 [2022-01-18 09:33:14,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ab06aa40/b9bd5bf90d08410baaa9684e726c9373 [2022-01-18 09:33:14,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 09:33:14,185 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 09:33:14,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 09:33:14,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 09:33:14,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 09:33:14,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:33:14" (1/1) ... [2022-01-18 09:33:14,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241542ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:14, skipping insertion in model container [2022-01-18 09:33:14,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:33:14" (1/1) ... [2022-01-18 09:33:14,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 09:33:14,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 09:33:14,407 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] [2022-01-18 09:33:14,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:33:14,721 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 09:33:14,729 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] [2022-01-18 09:33:14,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:33:14,813 INFO L208 MainTranslator]: Completed translation [2022-01-18 09:33:14,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:14 WrapperNode [2022-01-18 09:33:14,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 09:33:14,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 09:33:14,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 09:33:14,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 09:33:14,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:14" (1/1) ... [2022-01-18 09:33:14,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:14" (1/1) ... [2022-01-18 09:33:14,854 INFO L137 Inliner]: procedures = 363, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2022-01-18 09:33:14,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 09:33:14,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 09:33:14,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 09:33:14,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 09:33:14,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:14" (1/1) ... [2022-01-18 09:33:14,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:14" (1/1) ... [2022-01-18 09:33:14,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:14" (1/1) ... [2022-01-18 09:33:14,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:14" (1/1) ... [2022-01-18 09:33:14,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:14" (1/1) ... [2022-01-18 09:33:14,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:14" (1/1) ... [2022-01-18 09:33:14,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:14" (1/1) ... [2022-01-18 09:33:14,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 09:33:14,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 09:33:14,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 09:33:14,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 09:33:14,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:14" (1/1) ... [2022-01-18 09:33:14,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:33:14,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:33:14,913 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) [2022-01-18 09:33:14,927 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 [2022-01-18 09:33:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 09:33:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 09:33:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 09:33:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2022-01-18 09:33:14,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2022-01-18 09:33:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 09:33:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 09:33:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 09:33:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 09:33:14,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 09:33:14,957 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 09:33:15,083 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 09:33:15,084 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 09:33:15,216 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 09:33:15,222 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 09:33:15,222 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-18 09:33:15,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:33:15 BoogieIcfgContainer [2022-01-18 09:33:15,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 09:33:15,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 09:33:15,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 09:33:15,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 09:33:15,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 09:33:14" (1/3) ... [2022-01-18 09:33:15,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3266e97d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:33:15, skipping insertion in model container [2022-01-18 09:33:15,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:14" (2/3) ... [2022-01-18 09:33:15,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3266e97d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:33:15, skipping insertion in model container [2022-01-18 09:33:15,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:33:15" (3/3) ... [2022-01-18 09:33:15,230 INFO L111 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-2.i [2022-01-18 09:33:15,235 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 09:33:15,235 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 09:33:15,235 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 09:33:15,235 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 09:33:15,263 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,264 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,264 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,264 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,264 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,264 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,265 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,265 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,265 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,265 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,265 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,265 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,266 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,266 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,266 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,266 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,267 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,267 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,267 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,267 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,268 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,268 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,268 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,268 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,268 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,269 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,269 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,269 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,269 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,269 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,270 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,270 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,270 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,270 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,270 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,270 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,271 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,271 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,271 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,271 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,271 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,272 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,274 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,274 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,275 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,275 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,275 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,275 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,275 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,275 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:15,279 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-18 09:33:15,313 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 09:33:15,319 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 [2022-01-18 09:33:15,319 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 09:33:15,330 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 100 transitions, 208 flow [2022-01-18 09:33:15,378 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) [2022-01-18 09:33:15,381 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) [2022-01-18 09:33:15,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-18 09:33:15,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:15,393 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] [2022-01-18 09:33:15,394 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 09:33:15,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:15,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1531138945, now seen corresponding path program 1 times [2022-01-18 09:33:15,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:15,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277978316] [2022-01-18 09:33:15,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:15,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:15,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:33:15,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:33:15,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277978316] [2022-01-18 09:33:15,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277978316] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:33:15,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:33:15,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 09:33:15,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653189888] [2022-01-18 09:33:15,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:33:15,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 09:33:15,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:33:15,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 09:33:15,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 09:33:15,615 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) [2022-01-18 09:33:15,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:33:15,647 INFO L93 Difference]: Finished difference Result 346 states and 646 transitions. [2022-01-18 09:33:15,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 09:33:15,649 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 [2022-01-18 09:33:15,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:33:15,659 INFO L225 Difference]: With dead ends: 346 [2022-01-18 09:33:15,659 INFO L226 Difference]: Without dead ends: 301 [2022-01-18 09:33:15,661 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 [2022-01-18 09:33:15,664 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 [2022-01-18 09:33:15,666 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] [2022-01-18 09:33:15,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-01-18 09:33:15,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2022-01-18 09:33:15,714 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) [2022-01-18 09:33:15,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 556 transitions. [2022-01-18 09:33:15,718 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 556 transitions. Word has length 65 [2022-01-18 09:33:15,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:33:15,718 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 556 transitions. [2022-01-18 09:33:15,719 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) [2022-01-18 09:33:15,719 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 556 transitions. [2022-01-18 09:33:15,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-18 09:33:15,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:15,722 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] [2022-01-18 09:33:15,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 09:33:15,722 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 09:33:15,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:15,723 INFO L85 PathProgramCache]: Analyzing trace with hash 2061601119, now seen corresponding path program 1 times [2022-01-18 09:33:15,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:15,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612214803] [2022-01-18 09:33:15,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:15,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:15,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:33:15,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:33:15,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612214803] [2022-01-18 09:33:15,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612214803] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:33:15,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:33:15,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 09:33:15,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205644207] [2022-01-18 09:33:15,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:33:15,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 09:33:15,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:33:15,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 09:33:15,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 09:33:15,823 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) [2022-01-18 09:33:15,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:33:15,855 INFO L93 Difference]: Finished difference Result 420 states and 794 transitions. [2022-01-18 09:33:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 09:33:15,856 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 [2022-01-18 09:33:15,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:33:15,861 INFO L225 Difference]: With dead ends: 420 [2022-01-18 09:33:15,861 INFO L226 Difference]: Without dead ends: 420 [2022-01-18 09:33:15,861 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 [2022-01-18 09:33:15,862 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 [2022-01-18 09:33:15,863 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] [2022-01-18 09:33:15,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-01-18 09:33:15,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 318. [2022-01-18 09:33:15,887 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) [2022-01-18 09:33:15,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 590 transitions. [2022-01-18 09:33:15,888 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 590 transitions. Word has length 65 [2022-01-18 09:33:15,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:33:15,888 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 590 transitions. [2022-01-18 09:33:15,888 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) [2022-01-18 09:33:15,889 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 590 transitions. [2022-01-18 09:33:15,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-18 09:33:15,891 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:15,891 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] [2022-01-18 09:33:15,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 09:33:15,891 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 09:33:15,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:15,892 INFO L85 PathProgramCache]: Analyzing trace with hash -296287088, now seen corresponding path program 1 times [2022-01-18 09:33:15,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:15,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54535262] [2022-01-18 09:33:15,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:15,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:15,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:33:15,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:33:15,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54535262] [2022-01-18 09:33:15,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54535262] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:33:15,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516922010] [2022-01-18 09:33:15,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:15,990 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:33:15,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:33:15,992 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) [2022-01-18 09:33:15,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 09:33:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:16,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-18 09:33:16,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:33:16,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 09:33:16,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 09:33:16,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516922010] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:33:16,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 09:33:16,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-18 09:33:16,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463807813] [2022-01-18 09:33:16,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:33:16,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 09:33:16,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:33:16,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 09:33:16,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 09:33:16,312 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) [2022-01-18 09:33:16,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:33:16,342 INFO L93 Difference]: Finished difference Result 382 states and 718 transitions. [2022-01-18 09:33:16,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 09:33:16,342 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 [2022-01-18 09:33:16,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:33:16,344 INFO L225 Difference]: With dead ends: 382 [2022-01-18 09:33:16,344 INFO L226 Difference]: Without dead ends: 382 [2022-01-18 09:33:16,344 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 [2022-01-18 09:33:16,346 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 [2022-01-18 09:33:16,346 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] [2022-01-18 09:33:16,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-01-18 09:33:16,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 334. [2022-01-18 09:33:16,358 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) [2022-01-18 09:33:16,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 622 transitions. [2022-01-18 09:33:16,359 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 622 transitions. Word has length 73 [2022-01-18 09:33:16,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:33:16,360 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 622 transitions. [2022-01-18 09:33:16,360 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) [2022-01-18 09:33:16,360 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 622 transitions. [2022-01-18 09:33:16,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-18 09:33:16,364 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:16,364 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] [2022-01-18 09:33:16,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 09:33:16,587 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 [2022-01-18 09:33:16,587 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 09:33:16,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:16,588 INFO L85 PathProgramCache]: Analyzing trace with hash 2135479359, now seen corresponding path program 1 times [2022-01-18 09:33:16,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:16,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328327314] [2022-01-18 09:33:16,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:16,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:16,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 09:33:16,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:33:16,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328327314] [2022-01-18 09:33:16,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328327314] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:33:16,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282034625] [2022-01-18 09:33:16,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:16,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:33:16,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:33:16,689 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) [2022-01-18 09:33:16,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 09:33:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:16,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-18 09:33:16,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:33:16,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 09:33:16,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:33:17,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 09:33:17,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282034625] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:33:17,126 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:33:17,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-18 09:33:17,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158577146] [2022-01-18 09:33:17,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:33:17,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 09:33:17,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:33:17,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 09:33:17,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 09:33:17,128 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) [2022-01-18 09:33:17,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:33:17,215 INFO L93 Difference]: Finished difference Result 622 states and 1198 transitions. [2022-01-18 09:33:17,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 09:33:17,215 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 [2022-01-18 09:33:17,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:33:17,219 INFO L225 Difference]: With dead ends: 622 [2022-01-18 09:33:17,219 INFO L226 Difference]: Without dead ends: 622 [2022-01-18 09:33:17,220 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 [2022-01-18 09:33:17,223 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 [2022-01-18 09:33:17,225 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] [2022-01-18 09:33:17,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-01-18 09:33:17,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2022-01-18 09:33:17,255 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) [2022-01-18 09:33:17,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1198 transitions. [2022-01-18 09:33:17,267 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1198 transitions. Word has length 78 [2022-01-18 09:33:17,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:33:17,268 INFO L470 AbstractCegarLoop]: Abstraction has 622 states and 1198 transitions. [2022-01-18 09:33:17,268 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) [2022-01-18 09:33:17,268 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1198 transitions. [2022-01-18 09:33:17,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-18 09:33:17,274 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:17,274 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] [2022-01-18 09:33:17,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 09:33:17,494 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 [2022-01-18 09:33:17,495 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 09:33:17,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:17,495 INFO L85 PathProgramCache]: Analyzing trace with hash -758795275, now seen corresponding path program 2 times [2022-01-18 09:33:17,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:17,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322667732] [2022-01-18 09:33:17,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:17,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:17,581 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-18 09:33:17,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:33:17,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322667732] [2022-01-18 09:33:17,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322667732] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:33:17,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262335409] [2022-01-18 09:33:17,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 09:33:17,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:33:17,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:33:17,584 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) [2022-01-18 09:33:17,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 09:33:17,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 09:33:17,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:33:17,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-18 09:33:17,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:33:17,840 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-18 09:33:17,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:33:17,983 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-18 09:33:17,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262335409] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:33:17,983 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:33:17,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-18 09:33:17,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267482251] [2022-01-18 09:33:17,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:33:17,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 09:33:17,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:33:17,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 09:33:17,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 09:33:17,986 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) [2022-01-18 09:33:18,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:33:18,060 INFO L93 Difference]: Finished difference Result 942 states and 1838 transitions. [2022-01-18 09:33:18,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 09:33:18,061 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 [2022-01-18 09:33:18,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:33:18,067 INFO L225 Difference]: With dead ends: 942 [2022-01-18 09:33:18,067 INFO L226 Difference]: Without dead ends: 942 [2022-01-18 09:33:18,067 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 [2022-01-18 09:33:18,068 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 [2022-01-18 09:33:18,069 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] [2022-01-18 09:33:18,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-01-18 09:33:18,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2022-01-18 09:33:18,090 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) [2022-01-18 09:33:18,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1838 transitions. [2022-01-18 09:33:18,094 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1838 transitions. Word has length 94 [2022-01-18 09:33:18,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:33:18,095 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1838 transitions. [2022-01-18 09:33:18,095 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) [2022-01-18 09:33:18,095 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1838 transitions. [2022-01-18 09:33:18,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-18 09:33:18,099 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:18,100 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] [2022-01-18 09:33:18,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 09:33:18,317 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 [2022-01-18 09:33:18,317 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 09:33:18,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:18,318 INFO L85 PathProgramCache]: Analyzing trace with hash 169537301, now seen corresponding path program 3 times [2022-01-18 09:33:18,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:18,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378158894] [2022-01-18 09:33:18,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:18,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-18 09:33:18,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:33:18,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378158894] [2022-01-18 09:33:18,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378158894] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:33:18,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524873497] [2022-01-18 09:33:18,462 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 09:33:18,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:33:18,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:33:18,463 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) [2022-01-18 09:33:18,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 09:33:18,551 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-01-18 09:33:18,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:33:18,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 09:33:18,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:33:18,777 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-18 09:33:18,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:33:18,993 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-18 09:33:18,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524873497] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:33:18,993 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:33:18,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2022-01-18 09:33:18,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626347571] [2022-01-18 09:33:18,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:33:18,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 09:33:18,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:33:18,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 09:33:18,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2022-01-18 09:33:18,995 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) [2022-01-18 09:33:23,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:33:23,361 INFO L93 Difference]: Finished difference Result 2254 states and 4462 transitions. [2022-01-18 09:33:23,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-01-18 09:33:23,362 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 [2022-01-18 09:33:23,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:33:23,371 INFO L225 Difference]: With dead ends: 2254 [2022-01-18 09:33:23,371 INFO L226 Difference]: Without dead ends: 2254 [2022-01-18 09:33:23,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23820 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=10782, Invalid=42348, Unknown=0, NotChecked=0, Total=53130 [2022-01-18 09:33:23,390 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 [2022-01-18 09:33:23,390 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] [2022-01-18 09:33:23,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2022-01-18 09:33:23,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 1966. [2022-01-18 09:33:23,428 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) [2022-01-18 09:33:23,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 3886 transitions. [2022-01-18 09:33:23,434 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 3886 transitions. Word has length 104 [2022-01-18 09:33:23,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:33:23,435 INFO L470 AbstractCegarLoop]: Abstraction has 1966 states and 3886 transitions. [2022-01-18 09:33:23,435 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) [2022-01-18 09:33:23,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 3886 transitions. [2022-01-18 09:33:23,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-18 09:33:23,440 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:23,441 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] [2022-01-18 09:33:23,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 09:33:23,663 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 [2022-01-18 09:33:23,663 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 09:33:23,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:23,664 INFO L85 PathProgramCache]: Analyzing trace with hash 355416944, now seen corresponding path program 4 times [2022-01-18 09:33:23,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:23,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582978002] [2022-01-18 09:33:23,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:23,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:23,782 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-01-18 09:33:23,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:33:23,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582978002] [2022-01-18 09:33:23,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582978002] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:33:23,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356833425] [2022-01-18 09:33:23,782 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 09:33:23,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:33:23,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:33:23,784 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) [2022-01-18 09:33:23,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 09:33:23,889 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 09:33:23,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:33:23,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 09:33:23,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:33:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-01-18 09:33:24,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:33:24,330 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-01-18 09:33:24,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356833425] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:33:24,331 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:33:24,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-01-18 09:33:24,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695776548] [2022-01-18 09:33:24,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:33:24,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:33:24,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:33:24,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:33:24,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:33:24,333 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) [2022-01-18 09:33:24,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:33:24,548 INFO L93 Difference]: Finished difference Result 3886 states and 7726 transitions. [2022-01-18 09:33:24,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:33:24,548 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 [2022-01-18 09:33:24,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:33:24,562 INFO L225 Difference]: With dead ends: 3886 [2022-01-18 09:33:24,562 INFO L226 Difference]: Without dead ends: 3886 [2022-01-18 09:33:24,563 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 [2022-01-18 09:33:24,564 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 [2022-01-18 09:33:24,564 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] [2022-01-18 09:33:24,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3886 states. [2022-01-18 09:33:24,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3886 to 3886. [2022-01-18 09:33:24,634 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) [2022-01-18 09:33:24,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 7726 transitions. [2022-01-18 09:33:24,643 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 7726 transitions. Word has length 132 [2022-01-18 09:33:24,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:33:24,644 INFO L470 AbstractCegarLoop]: Abstraction has 3886 states and 7726 transitions. [2022-01-18 09:33:24,644 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) [2022-01-18 09:33:24,644 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 7726 transitions. [2022-01-18 09:33:24,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-01-18 09:33:24,653 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:24,653 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] [2022-01-18 09:33:24,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 09:33:24,875 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 [2022-01-18 09:33:24,875 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 09:33:24,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:24,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1870863607, now seen corresponding path program 5 times [2022-01-18 09:33:24,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:24,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136616783] [2022-01-18 09:33:24,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:24,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:25,128 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-01-18 09:33:25,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:33:25,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136616783] [2022-01-18 09:33:25,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136616783] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:33:25,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466211750] [2022-01-18 09:33:25,128 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 09:33:25,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:33:25,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:33:25,131 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) [2022-01-18 09:33:25,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 09:33:25,215 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2022-01-18 09:33:25,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:33:25,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-18 09:33:25,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:33:25,476 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-01-18 09:33:25,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:33:25,966 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-01-18 09:33:25,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466211750] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:33:25,966 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:33:25,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 42 [2022-01-18 09:33:25,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799882394] [2022-01-18 09:33:25,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:33:25,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-01-18 09:33:25,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:33:25,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-01-18 09:33:25,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=462, Invalid=1260, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:33:25,969 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) [2022-01-18 09:33:26,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:33:26,903 INFO L93 Difference]: Finished difference Result 7726 states and 15406 transitions. [2022-01-18 09:33:26,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-18 09:33:26,904 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 [2022-01-18 09:33:26,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:33:26,932 INFO L225 Difference]: With dead ends: 7726 [2022-01-18 09:33:26,932 INFO L226 Difference]: Without dead ends: 7726 [2022-01-18 09:33:26,934 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 [2022-01-18 09:33:26,934 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 [2022-01-18 09:33:26,934 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] [2022-01-18 09:33:26,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7726 states. [2022-01-18 09:33:27,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7726 to 7726. [2022-01-18 09:33:27,077 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) [2022-01-18 09:33:27,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 15406 transitions. [2022-01-18 09:33:27,097 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 15406 transitions. Word has length 172 [2022-01-18 09:33:27,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:33:27,097 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 15406 transitions. [2022-01-18 09:33:27,097 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) [2022-01-18 09:33:27,097 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 15406 transitions. [2022-01-18 09:33:27,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-01-18 09:33:27,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:27,163 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] [2022-01-18 09:33:27,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 09:33:27,367 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 [2022-01-18 09:33:27,368 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 09:33:27,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:27,368 INFO L85 PathProgramCache]: Analyzing trace with hash -369170683, now seen corresponding path program 6 times [2022-01-18 09:33:27,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:27,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139500678] [2022-01-18 09:33:27,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:27,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:28,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1499 backedges. 0 proven. 1387 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-01-18 09:33:28,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:33:28,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139500678] [2022-01-18 09:33:28,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139500678] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:33:28,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886844776] [2022-01-18 09:33:28,027 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 09:33:28,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:33:28,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:33:28,028 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) [2022-01-18 09:33:28,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 09:33:28,140 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-01-18 09:33:28,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:33:28,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-18 09:33:28,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:33:28,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1499 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2022-01-18 09:33:28,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:33:29,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1499 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2022-01-18 09:33:29,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886844776] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:33:29,408 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:33:29,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 17, 17] total 71 [2022-01-18 09:33:29,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690104749] [2022-01-18 09:33:29,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:33:29,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-01-18 09:33:29,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:33:29,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-01-18 09:33:29,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=711, Invalid=4259, Unknown=0, NotChecked=0, Total=4970 [2022-01-18 09:33:29,411 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) [2022-01-18 09:39:05,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:39:05,955 INFO L93 Difference]: Finished difference Result 14830 states and 29614 transitions. [2022-01-18 09:39:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2597 states. [2022-01-18 09:39:05,956 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 [2022-01-18 09:39:05,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:39:05,999 INFO L225 Difference]: With dead ends: 14830 [2022-01-18 09:39:05,999 INFO L226 Difference]: Without dead ends: 14830 [2022-01-18 09:39:06,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5663 GetRequests, 3034 SyntacticMatches, 0 SemanticMatches, 2629 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3589725 ImplicationChecksByTransitivity, 317.6s TimeCoverageRelationStatistics Valid=1149550, Invalid=5769980, Unknown=0, NotChecked=0, Total=6919530 [2022-01-18 09:39:06,730 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 [2022-01-18 09:39:06,731 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] [2022-01-18 09:39:06,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14830 states. [2022-01-18 09:39:06,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14830 to 14830. [2022-01-18 09:39:06,984 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) [2022-01-18 09:39:07,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14830 states to 14830 states and 29614 transitions. [2022-01-18 09:39:07,026 INFO L78 Accepts]: Start accepts. Automaton has 14830 states and 29614 transitions. Word has length 252 [2022-01-18 09:39:07,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:39:07,026 INFO L470 AbstractCegarLoop]: Abstraction has 14830 states and 29614 transitions. [2022-01-18 09:39:07,027 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) [2022-01-18 09:39:07,027 INFO L276 IsEmpty]: Start isEmpty. Operand 14830 states and 29614 transitions. [2022-01-18 09:39:07,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-01-18 09:39:07,062 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:39:07,062 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] [2022-01-18 09:39:07,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 09:39:07,287 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 [2022-01-18 09:39:07,288 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 09:39:07,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:39:07,289 INFO L85 PathProgramCache]: Analyzing trace with hash -540869984, now seen corresponding path program 7 times [2022-01-18 09:39:07,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:39:07,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388833051] [2022-01-18 09:39:07,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:39:07,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:39:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:39:08,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:39:08,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:39:08,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388833051] [2022-01-18 09:39:08,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388833051] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:39:08,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612372102] [2022-01-18 09:39:08,440 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 09:39:08,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:39:08,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:39:08,441 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) [2022-01-18 09:39:08,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 09:39:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:39:08,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 32 conjunts are in the unsatisfiable core [2022-01-18 09:39:08,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:39:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-01-18 09:39:10,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:39:10,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-01-18 09:39:10,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612372102] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:39:10,684 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:39:10,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 33, 33] total 100 [2022-01-18 09:39:10,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463270818] [2022-01-18 09:39:10,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:39:10,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-01-18 09:39:10,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:39:10,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-01-18 09:39:10,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1398, Invalid=8502, Unknown=0, NotChecked=0, Total=9900 [2022-01-18 09:39:10,687 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... [2022-01-18 09:44:23,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2579 states. [2022-01-18 09:44:23,566 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 [2022-01-18 09:44:23,575 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 [2022-01-18 09:44:24,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5646 GetRequests, 2971 SyntacticMatches, 1 SemanticMatches, 2674 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4129110 ImplicationChecksByTransitivity, 169.7s TimeCoverageRelationStatistics Valid=1425675, Invalid=5732625, Unknown=0, NotChecked=0, Total=7158300 [2022-01-18 09:44:24,008 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 20383 mSDsluCounter, 3489 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 9504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20383 SdHoareTripleChecker+Valid, 3571 SdHoareTripleChecker+Invalid, 11885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9504 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:44:24,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20383 Valid, 3571 Invalid, 11885 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9504 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-01-18 09:44:24,009 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-18 09:44:24,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-01-18 09:44:24,227 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 [2022-01-18 09:44:24,228 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (14830states) and FLOYD_HOARE automaton (currently 2579 states, 100 states before enhancement),while ReachableStatesComputation was computing reachable states (42796 states constructed, input type IntersectNwa). [2022-01-18 09:44:24,230 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-18 09:44:24,232 INFO L732 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1] [2022-01-18 09:44:24,233 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 09:44:24,233 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 09:44:24,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 09:44:24 BasicIcfg [2022-01-18 09:44:24,235 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 09:44:24,235 INFO L158 Benchmark]: Toolchain (without parser) took 670050.56ms. Allocated memory was 331.4MB in the beginning and 15.1GB in the end (delta: 14.8GB). Free memory was 273.7MB in the beginning and 12.6GB in the end (delta: -12.3GB). Peak memory consumption was 2.5GB. Max. memory is 16.0GB. [2022-01-18 09:44:24,235 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 331.4MB. Free memory is still 292.6MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 09:44:24,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.27ms. Allocated memory was 331.4MB in the beginning and 415.2MB in the end (delta: 83.9MB). Free memory was 273.5MB in the beginning and 359.8MB in the end (delta: -86.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.0GB. [2022-01-18 09:44:24,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.43ms. Allocated memory is still 415.2MB. Free memory was 359.8MB in the beginning and 356.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 09:44:24,236 INFO L158 Benchmark]: Boogie Preprocessor took 22.21ms. Allocated memory is still 415.2MB. Free memory was 356.6MB in the beginning and 355.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 09:44:24,236 INFO L158 Benchmark]: RCFGBuilder took 346.81ms. Allocated memory is still 415.2MB. Free memory was 355.6MB in the beginning and 340.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-18 09:44:24,236 INFO L158 Benchmark]: TraceAbstraction took 669009.51ms. Allocated memory was 415.2MB in the beginning and 15.1GB in the end (delta: 14.7GB). Free memory was 339.9MB in the beginning and 12.6GB in the end (delta: -12.3GB). Peak memory consumption was 2.4GB. Max. memory is 16.0GB. [2022-01-18 09:44:24,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 331.4MB. Free memory is still 292.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 628.27ms. Allocated memory was 331.4MB in the beginning and 415.2MB in the end (delta: 83.9MB). Free memory was 273.5MB in the beginning and 359.8MB in the end (delta: -86.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 39.43ms. Allocated memory is still 415.2MB. Free memory was 359.8MB in the beginning and 356.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.21ms. Allocated memory is still 415.2MB. Free memory was 356.6MB in the beginning and 355.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 346.81ms. Allocated memory is still 415.2MB. Free memory was 355.6MB in the beginning and 340.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 669009.51ms. Allocated memory was 415.2MB in the beginning and 15.1GB in the end (delta: 14.7GB). Free memory was 339.9MB in the beginning and 12.6GB in the end (delta: -12.3GB). Peak memory consumption was 2.4GB. 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 2579 states, 100 states before enhancement),while ReachableStatesComputation was computing reachable states (42796 states constructed, input type IntersectNwa). - 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 2579 states, 100 states before enhancement),while ReachableStatesComputation was computing reachable states (42796 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 110 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 668.9s, OverallIterations: 10, TraceHistogramMax: 20, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 656.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61651 SdHoareTripleChecker+Valid, 8.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61651 mSDsluCounter, 11053 SdHoareTripleChecker+Invalid, 6.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10107 mSDsCounter, 15098 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3904 IncrementalHoareTripleChecker+Invalid, 19002 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15098 mSolverCounterUnsat, 1019 mSDtfsCounter, 3904 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13128 GetRequests, 7454 SyntacticMatches, 1 SemanticMatches, 5673 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7744323 ImplicationChecksByTransitivity, 492.6s 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, 8.3s 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