/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 21:50:45,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 21:50:45,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 21:50:45,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-10 21:50:45,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 21:50:45,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 21:50:45,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 21:50:45,988 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-10 21:50:46,013 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 21:50:46,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 21:50:46,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 21:50:46,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 21:50:46,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 21:50:46,015 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 21:50:46,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 21:50:46,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 21:50:46,015 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 21:50:46,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 21:50:46,016 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 21:50:46,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 21:50:46,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 21:50:46,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 21:50:46,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 21:50:46,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 21:50:46,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 21:50:46,017 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 21:50:46,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 21:50:46,017 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 21:50:46,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 21:50:46,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 21:50:46,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 21:50:46,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 21:50:46,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 21:50:46,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 21:50:46,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 21:50:46,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 21:50:46,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 21:50:46,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 21:50:46,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 21:50:46,019 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 21:50:46,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 21:50:46,019 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 21:50:46,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 21:50:46,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 21:50:46,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 21:50:46,239 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 21:50:46,241 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 21:50:46,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-2.i [2022-02-10 21:50:46,292 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73e5a5e14/2e19874b84bf4ff5997719bbd71dc5df/FLAG7eed43c84 [2022-02-10 21:50:46,735 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 21:50:46,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-2.i [2022-02-10 21:50:46,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73e5a5e14/2e19874b84bf4ff5997719bbd71dc5df/FLAG7eed43c84 [2022-02-10 21:50:47,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73e5a5e14/2e19874b84bf4ff5997719bbd71dc5df [2022-02-10 21:50:47,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 21:50:47,044 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 21:50:47,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 21:50:47,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 21:50:47,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 21:50:47,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 09:50:47" (1/1) ... [2022-02-10 21:50:47,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52d4c11a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:47, skipping insertion in model container [2022-02-10 21:50:47,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 09:50:47" (1/1) ... [2022-02-10 21:50:47,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 21:50:47,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 21:50:47,242 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] [2022-02-10 21:50:47,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 21:50:47,477 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 21:50:47,485 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] [2022-02-10 21:50:47,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 21:50:47,593 INFO L208 MainTranslator]: Completed translation [2022-02-10 21:50:47,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:47 WrapperNode [2022-02-10 21:50:47,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 21:50:47,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 21:50:47,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 21:50:47,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 21:50:47,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:47" (1/1) ... [2022-02-10 21:50:47,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:47" (1/1) ... [2022-02-10 21:50:47,643 INFO L137 Inliner]: procedures = 363, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2022-02-10 21:50:47,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 21:50:47,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 21:50:47,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 21:50:47,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 21:50:47,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:47" (1/1) ... [2022-02-10 21:50:47,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:47" (1/1) ... [2022-02-10 21:50:47,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:47" (1/1) ... [2022-02-10 21:50:47,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:47" (1/1) ... [2022-02-10 21:50:47,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:47" (1/1) ... [2022-02-10 21:50:47,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:47" (1/1) ... [2022-02-10 21:50:47,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:47" (1/1) ... [2022-02-10 21:50:47,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 21:50:47,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 21:50:47,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 21:50:47,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 21:50:47,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:47" (1/1) ... [2022-02-10 21:50:47,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 21:50:47,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 21:50:47,700 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) [2022-02-10 21:50:47,706 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 [2022-02-10 21:50:47,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 21:50:47,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 21:50:47,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 21:50:47,733 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2022-02-10 21:50:47,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2022-02-10 21:50:47,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 21:50:47,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 21:50:47,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 21:50:47,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 21:50:47,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 21:50:47,735 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 21:50:47,883 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 21:50:47,884 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 21:50:47,992 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 21:50:47,997 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 21:50:47,998 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-10 21:50:47,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 09:50:47 BoogieIcfgContainer [2022-02-10 21:50:47,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 21:50:48,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 21:50:48,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 21:50:48,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 21:50:48,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 09:50:47" (1/3) ... [2022-02-10 21:50:48,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53aee15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 09:50:48, skipping insertion in model container [2022-02-10 21:50:48,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:47" (2/3) ... [2022-02-10 21:50:48,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53aee15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 09:50:48, skipping insertion in model container [2022-02-10 21:50:48,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 09:50:47" (3/3) ... [2022-02-10 21:50:48,009 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-2.i [2022-02-10 21:50:48,012 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 21:50:48,012 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 21:50:48,012 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 21:50:48,012 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 21:50:48,030 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,030 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,030 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,030 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,031 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,031 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,031 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,031 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,031 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,031 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,031 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,032 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,032 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,032 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,032 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,032 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,032 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,033 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,033 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,033 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,033 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,033 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,033 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,033 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,034 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,034 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,034 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,034 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,034 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,034 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,034 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,035 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,035 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,035 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,035 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,035 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,035 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,035 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,035 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,035 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,036 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,036 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,038 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,038 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,038 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,038 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,039 WARN L322 ript$VariableManager]: TermVariable |thread_function_dataraceThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,039 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,039 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,039 WARN L322 ript$VariableManager]: TermVariable thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:48,042 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-10 21:50:48,071 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 21:50:48,082 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 [2022-02-10 21:50:48,082 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 21:50:48,090 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 100 transitions, 208 flow [2022-02-10 21:50:48,125 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) [2022-02-10 21:50:48,131 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) [2022-02-10 21:50:48,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-10 21:50:48,142 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:50:48,143 INFO L515 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] [2022-02-10 21:50:48,146 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 21:50:48,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:50:48,150 INFO L85 PathProgramCache]: Analyzing trace with hash -2082170151, now seen corresponding path program 1 times [2022-02-10 21:50:48,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:50:48,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570701777] [2022-02-10 21:50:48,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:48,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:50:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:48,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:50:48,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:50:48,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570701777] [2022-02-10 21:50:48,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570701777] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 21:50:48,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 21:50:48,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 21:50:48,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201087821] [2022-02-10 21:50:48,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 21:50:48,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 21:50:48,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:50:48,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 21:50:48,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 21:50:48,375 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) [2022-02-10 21:50:48,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:50:48,396 INFO L93 Difference]: Finished difference Result 346 states and 646 transitions. [2022-02-10 21:50:48,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 21:50:48,404 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 [2022-02-10 21:50:48,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:50:48,413 INFO L225 Difference]: With dead ends: 346 [2022-02-10 21:50:48,413 INFO L226 Difference]: Without dead ends: 301 [2022-02-10 21:50:48,414 INFO L933 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 [2022-02-10 21:50:48,417 INFO L934 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 [2022-02-10 21:50:48,417 INFO L935 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] [2022-02-10 21:50:48,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-02-10 21:50:48,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2022-02-10 21:50:48,456 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) [2022-02-10 21:50:48,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 556 transitions. [2022-02-10 21:50:48,459 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 556 transitions. Word has length 65 [2022-02-10 21:50:48,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:50:48,459 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 556 transitions. [2022-02-10 21:50:48,460 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) [2022-02-10 21:50:48,460 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 556 transitions. [2022-02-10 21:50:48,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-10 21:50:48,462 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:50:48,462 INFO L515 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] [2022-02-10 21:50:48,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 21:50:48,463 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 21:50:48,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:50:48,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1510569913, now seen corresponding path program 1 times [2022-02-10 21:50:48,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:50:48,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787816798] [2022-02-10 21:50:48,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:48,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:50:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:48,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:50:48,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:50:48,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787816798] [2022-02-10 21:50:48,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787816798] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 21:50:48,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 21:50:48,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 21:50:48,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367371646] [2022-02-10 21:50:48,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 21:50:48,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 21:50:48,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:50:48,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 21:50:48,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 21:50:48,612 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) [2022-02-10 21:50:48,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:50:48,650 INFO L93 Difference]: Finished difference Result 420 states and 794 transitions. [2022-02-10 21:50:48,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 21:50:48,651 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 [2022-02-10 21:50:48,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:50:48,653 INFO L225 Difference]: With dead ends: 420 [2022-02-10 21:50:48,653 INFO L226 Difference]: Without dead ends: 420 [2022-02-10 21:50:48,653 INFO L933 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 [2022-02-10 21:50:48,654 INFO L934 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 [2022-02-10 21:50:48,654 INFO L935 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] [2022-02-10 21:50:48,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-02-10 21:50:48,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 318. [2022-02-10 21:50:48,679 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) [2022-02-10 21:50:48,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 590 transitions. [2022-02-10 21:50:48,680 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 590 transitions. Word has length 65 [2022-02-10 21:50:48,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:50:48,680 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 590 transitions. [2022-02-10 21:50:48,680 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) [2022-02-10 21:50:48,680 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 590 transitions. [2022-02-10 21:50:48,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-10 21:50:48,682 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:50:48,682 INFO L515 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] [2022-02-10 21:50:48,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 21:50:48,682 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 21:50:48,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:50:48,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1975515370, now seen corresponding path program 1 times [2022-02-10 21:50:48,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:50:48,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337572657] [2022-02-10 21:50:48,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:48,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:50:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:48,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:50:48,822 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:50:48,822 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337572657] [2022-02-10 21:50:48,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337572657] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 21:50:48,822 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032523778] [2022-02-10 21:50:48,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:48,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 21:50:48,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 21:50:48,825 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) [2022-02-10 21:50:48,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 21:50:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:48,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-10 21:50:48,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 21:50:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 21:50:49,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 21:50:49,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032523778] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 21:50:49,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 21:50:49,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-10 21:50:49,099 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598184779] [2022-02-10 21:50:49,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 21:50:49,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 21:50:49,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:50:49,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 21:50:49,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 21:50:49,101 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) [2022-02-10 21:50:49,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:50:49,126 INFO L93 Difference]: Finished difference Result 382 states and 718 transitions. [2022-02-10 21:50:49,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 21:50:49,126 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 [2022-02-10 21:50:49,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:50:49,129 INFO L225 Difference]: With dead ends: 382 [2022-02-10 21:50:49,129 INFO L226 Difference]: Without dead ends: 382 [2022-02-10 21:50:49,130 INFO L933 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 [2022-02-10 21:50:49,130 INFO L934 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 [2022-02-10 21:50:49,131 INFO L935 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] [2022-02-10 21:50:49,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-02-10 21:50:49,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 334. [2022-02-10 21:50:49,147 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) [2022-02-10 21:50:49,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 622 transitions. [2022-02-10 21:50:49,148 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 622 transitions. Word has length 73 [2022-02-10 21:50:49,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:50:49,149 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 622 transitions. [2022-02-10 21:50:49,149 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) [2022-02-10 21:50:49,149 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 622 transitions. [2022-02-10 21:50:49,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-10 21:50:49,156 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:50:49,156 INFO L515 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] [2022-02-10 21:50:49,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-10 21:50:49,375 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 [2022-02-10 21:50:49,376 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 21:50:49,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:50:49,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1357678629, now seen corresponding path program 1 times [2022-02-10 21:50:49,378 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:50:49,378 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578875553] [2022-02-10 21:50:49,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:49,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:50:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:49,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 21:50:49,470 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:50:49,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578875553] [2022-02-10 21:50:49,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578875553] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 21:50:49,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312407635] [2022-02-10 21:50:49,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:49,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 21:50:49,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 21:50:49,472 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) [2022-02-10 21:50:49,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 21:50:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:49,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 21:50:49,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 21:50:49,655 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 21:50:49,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 21:50:49,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 21:50:49,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312407635] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 21:50:49,755 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 21:50:49,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 21:50:49,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318764375] [2022-02-10 21:50:49,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 21:50:49,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 21:50:49,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:50:49,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 21:50:49,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 21:50:49,757 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) [2022-02-10 21:50:49,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:50:49,807 INFO L93 Difference]: Finished difference Result 622 states and 1198 transitions. [2022-02-10 21:50:49,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 21:50:49,807 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 [2022-02-10 21:50:49,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:50:49,810 INFO L225 Difference]: With dead ends: 622 [2022-02-10 21:50:49,810 INFO L226 Difference]: Without dead ends: 622 [2022-02-10 21:50:49,810 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-10 21:50:49,810 INFO L934 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 [2022-02-10 21:50:49,811 INFO L935 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] [2022-02-10 21:50:49,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-02-10 21:50:49,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2022-02-10 21:50:49,820 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) [2022-02-10 21:50:49,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1198 transitions. [2022-02-10 21:50:49,822 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1198 transitions. Word has length 78 [2022-02-10 21:50:49,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:50:49,822 INFO L470 AbstractCegarLoop]: Abstraction has 622 states and 1198 transitions. [2022-02-10 21:50:49,822 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) [2022-02-10 21:50:49,822 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1198 transitions. [2022-02-10 21:50:49,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-02-10 21:50:49,824 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:50:49,824 INFO L515 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] [2022-02-10 21:50:49,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 21:50:50,039 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 [2022-02-10 21:50:50,039 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 21:50:50,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:50:50,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1027660763, now seen corresponding path program 2 times [2022-02-10 21:50:50,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:50:50,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027052524] [2022-02-10 21:50:50,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:50,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:50:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:50,120 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-10 21:50:50,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:50:50,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027052524] [2022-02-10 21:50:50,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027052524] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 21:50:50,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296671623] [2022-02-10 21:50:50,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 21:50:50,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 21:50:50,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 21:50:50,122 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) [2022-02-10 21:50:50,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 21:50:50,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 21:50:50,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 21:50:50,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 21:50:50,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 21:50:50,320 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-10 21:50:50,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 21:50:50,417 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-10 21:50:50,418 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296671623] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 21:50:50,418 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 21:50:50,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 21:50:50,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274382904] [2022-02-10 21:50:50,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 21:50:50,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 21:50:50,419 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:50:50,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 21:50:50,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 21:50:50,419 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) [2022-02-10 21:50:50,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:50:50,489 INFO L93 Difference]: Finished difference Result 942 states and 1838 transitions. [2022-02-10 21:50:50,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 21:50:50,489 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 [2022-02-10 21:50:50,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:50:50,493 INFO L225 Difference]: With dead ends: 942 [2022-02-10 21:50:50,493 INFO L226 Difference]: Without dead ends: 942 [2022-02-10 21:50:50,493 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-10 21:50:50,494 INFO L934 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 [2022-02-10 21:50:50,494 INFO L935 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] [2022-02-10 21:50:50,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-02-10 21:50:50,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2022-02-10 21:50:50,508 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) [2022-02-10 21:50:50,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1838 transitions. [2022-02-10 21:50:50,510 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1838 transitions. Word has length 94 [2022-02-10 21:50:50,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:50:50,515 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1838 transitions. [2022-02-10 21:50:50,515 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) [2022-02-10 21:50:50,516 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1838 transitions. [2022-02-10 21:50:50,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-02-10 21:50:50,518 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:50:50,518 INFO L515 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] [2022-02-10 21:50:50,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 21:50:50,730 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 [2022-02-10 21:50:50,731 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 21:50:50,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:50:50,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1938419579, now seen corresponding path program 3 times [2022-02-10 21:50:50,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:50:50,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424946151] [2022-02-10 21:50:50,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:50,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:50:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:50,824 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-10 21:50:50,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:50:50,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424946151] [2022-02-10 21:50:50,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424946151] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 21:50:50,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339131506] [2022-02-10 21:50:50,825 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 21:50:50,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 21:50:50,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 21:50:50,840 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) [2022-02-10 21:50:50,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 21:50:50,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-10 21:50:50,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 21:50:50,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 21:50:50,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 21:50:51,105 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-10 21:50:51,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 21:50:51,311 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-10 21:50:51,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339131506] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 21:50:51,312 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 21:50:51,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2022-02-10 21:50:51,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438785289] [2022-02-10 21:50:51,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 21:50:51,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-10 21:50:51,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:50:51,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-10 21:50:51,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2022-02-10 21:50:51,313 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) [2022-02-10 21:50:54,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:50:54,622 INFO L93 Difference]: Finished difference Result 2254 states and 4462 transitions. [2022-02-10 21:50:54,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-02-10 21:50:54,622 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 [2022-02-10 21:50:54,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:50:54,629 INFO L225 Difference]: With dead ends: 2254 [2022-02-10 21:50:54,630 INFO L226 Difference]: Without dead ends: 2254 [2022-02-10 21:50:54,644 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23820 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=10782, Invalid=42348, Unknown=0, NotChecked=0, Total=53130 [2022-02-10 21:50:54,645 INFO L934 BasicCegarLoop]: 122 mSDtfsCounter, 3103 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 21:50:54,645 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3103 Valid, 1201 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 21:50:54,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2022-02-10 21:50:54,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 1966. [2022-02-10 21:50:54,677 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) [2022-02-10 21:50:54,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 3886 transitions. [2022-02-10 21:50:54,683 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 3886 transitions. Word has length 104 [2022-02-10 21:50:54,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:50:54,684 INFO L470 AbstractCegarLoop]: Abstraction has 1966 states and 3886 transitions. [2022-02-10 21:50:54,684 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) [2022-02-10 21:50:54,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 3886 transitions. [2022-02-10 21:50:54,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-10 21:50:54,688 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:50:54,688 INFO L515 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] [2022-02-10 21:50:54,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-10 21:50:54,907 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 [2022-02-10 21:50:54,908 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 21:50:54,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:50:54,908 INFO L85 PathProgramCache]: Analyzing trace with hash -2014099754, now seen corresponding path program 4 times [2022-02-10 21:50:54,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:50:54,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867623856] [2022-02-10 21:50:54,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:54,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:50:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:54,988 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-02-10 21:50:54,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:50:54,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867623856] [2022-02-10 21:50:54,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867623856] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 21:50:54,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414184427] [2022-02-10 21:50:54,988 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 21:50:54,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 21:50:54,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 21:50:54,989 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) [2022-02-10 21:50:54,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 21:50:55,089 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 21:50:55,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 21:50:55,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-10 21:50:55,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 21:50:55,265 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-02-10 21:50:55,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 21:50:55,533 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-02-10 21:50:55,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414184427] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 21:50:55,534 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 21:50:55,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-02-10 21:50:55,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167991503] [2022-02-10 21:50:55,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 21:50:55,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-10 21:50:55,535 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:50:55,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-10 21:50:55,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2022-02-10 21:50:55,535 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) [2022-02-10 21:50:55,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:50:55,755 INFO L93 Difference]: Finished difference Result 3886 states and 7726 transitions. [2022-02-10 21:50:55,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 21:50:55,756 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 [2022-02-10 21:50:55,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:50:55,767 INFO L225 Difference]: With dead ends: 3886 [2022-02-10 21:50:55,768 INFO L226 Difference]: Without dead ends: 3886 [2022-02-10 21:50:55,768 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=448, Invalid=958, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 21:50:55,769 INFO L934 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 [2022-02-10 21:50:55,769 INFO L935 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] [2022-02-10 21:50:55,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3886 states. [2022-02-10 21:50:55,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3886 to 3886. [2022-02-10 21:50:55,830 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) [2022-02-10 21:50:55,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 7726 transitions. [2022-02-10 21:50:55,838 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 7726 transitions. Word has length 132 [2022-02-10 21:50:55,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:50:55,838 INFO L470 AbstractCegarLoop]: Abstraction has 3886 states and 7726 transitions. [2022-02-10 21:50:55,839 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) [2022-02-10 21:50:55,839 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 7726 transitions. [2022-02-10 21:50:55,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-02-10 21:50:55,846 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:50:55,846 INFO L515 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] [2022-02-10 21:50:55,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-10 21:50:56,063 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 [2022-02-10 21:50:56,064 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 21:50:56,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:50:56,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1208923555, now seen corresponding path program 5 times [2022-02-10 21:50:56,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:50:56,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047458662] [2022-02-10 21:50:56,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:56,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:50:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:56,280 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-02-10 21:50:56,280 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:50:56,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047458662] [2022-02-10 21:50:56,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047458662] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 21:50:56,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169244936] [2022-02-10 21:50:56,281 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 21:50:56,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 21:50:56,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 21:50:56,287 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) [2022-02-10 21:50:56,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-10 21:50:56,371 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2022-02-10 21:50:56,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 21:50:56,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-10 21:50:56,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 21:50:56,636 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-02-10 21:50:56,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 21:50:57,164 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-02-10 21:50:57,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169244936] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 21:50:57,164 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 21:50:57,164 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 42 [2022-02-10 21:50:57,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053996367] [2022-02-10 21:50:57,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 21:50:57,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-10 21:50:57,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:50:57,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-10 21:50:57,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=462, Invalid=1260, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 21:50:57,166 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) [2022-02-10 21:50:57,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:50:57,976 INFO L93 Difference]: Finished difference Result 7726 states and 15406 transitions. [2022-02-10 21:50:57,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-10 21:50:57,977 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 [2022-02-10 21:50:57,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:50:58,004 INFO L225 Difference]: With dead ends: 7726 [2022-02-10 21:50:58,004 INFO L226 Difference]: Without dead ends: 7726 [2022-02-10 21:50:58,006 INFO L933 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 [2022-02-10 21:50:58,007 INFO L934 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 [2022-02-10 21:50:58,007 INFO L935 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] [2022-02-10 21:50:58,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7726 states. [2022-02-10 21:50:58,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7726 to 7726. [2022-02-10 21:50:58,120 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) [2022-02-10 21:50:58,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 15406 transitions. [2022-02-10 21:50:58,136 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 15406 transitions. Word has length 172 [2022-02-10 21:50:58,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:50:58,136 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 15406 transitions. [2022-02-10 21:50:58,137 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) [2022-02-10 21:50:58,137 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 15406 transitions. [2022-02-10 21:50:58,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-02-10 21:50:58,151 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:50:58,151 INFO L515 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] [2022-02-10 21:50:58,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-10 21:50:58,368 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 [2022-02-10 21:50:58,368 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 21:50:58,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:50:58,369 INFO L85 PathProgramCache]: Analyzing trace with hash -354199445, now seen corresponding path program 6 times [2022-02-10 21:50:58,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:50:58,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072899476] [2022-02-10 21:50:58,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:58,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:50:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:58,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1499 backedges. 0 proven. 1387 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-02-10 21:50:58,933 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:50:58,933 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072899476] [2022-02-10 21:50:58,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072899476] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 21:50:58,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708135703] [2022-02-10 21:50:58,934 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-10 21:50:58,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 21:50:58,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 21:50:58,935 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) [2022-02-10 21:50:58,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-10 21:50:59,033 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-02-10 21:50:59,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 21:50:59,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-10 21:50:59,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 21:50:59,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1499 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2022-02-10 21:50:59,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 21:51:00,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1499 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2022-02-10 21:51:00,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708135703] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 21:51:00,045 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 21:51:00,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 17, 17] total 71 [2022-02-10 21:51:00,048 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310373651] [2022-02-10 21:51:00,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 21:51:00,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-02-10 21:51:00,049 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:51:00,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-02-10 21:51:00,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=711, Invalid=4259, Unknown=0, NotChecked=0, Total=4970 [2022-02-10 21:51:00,050 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) [2022-02-10 21:55:39,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:55:39,246 INFO L93 Difference]: Finished difference Result 14830 states and 29614 transitions. [2022-02-10 21:55:39,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2597 states. [2022-02-10 21:55:39,246 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 [2022-02-10 21:55:39,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:55:39,282 INFO L225 Difference]: With dead ends: 14830 [2022-02-10 21:55:39,283 INFO L226 Difference]: Without dead ends: 14830 [2022-02-10 21:55:39,815 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 5663 GetRequests, 3034 SyntacticMatches, 0 SemanticMatches, 2629 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3589725 ImplicationChecksByTransitivity, 256.0s TimeCoverageRelationStatistics Valid=1149550, Invalid=5769980, Unknown=0, NotChecked=0, Total=6919530 [2022-02-10 21:55:39,816 INFO L934 BasicCegarLoop]: 122 mSDtfsCounter, 33146 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 5208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.1s IncrementalHoareTripleChecker+Time [2022-02-10 21:55:39,816 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [33146 Valid, 2729 Invalid, 6110 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5208 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-02-10 21:55:39,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14830 states. [2022-02-10 21:55:40,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14830 to 14830. [2022-02-10 21:55:40,348 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) [2022-02-10 21:55:40,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14830 states to 14830 states and 29614 transitions. [2022-02-10 21:55:40,441 INFO L78 Accepts]: Start accepts. Automaton has 14830 states and 29614 transitions. Word has length 252 [2022-02-10 21:55:40,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:55:40,441 INFO L470 AbstractCegarLoop]: Abstraction has 14830 states and 29614 transitions. [2022-02-10 21:55:40,442 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) [2022-02-10 21:55:40,442 INFO L276 IsEmpty]: Start isEmpty. Operand 14830 states and 29614 transitions. [2022-02-10 21:55:40,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-02-10 21:55:40,468 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:55:40,468 INFO L515 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] [2022-02-10 21:55:40,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-10 21:55:40,679 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 [2022-02-10 21:55:40,680 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 21:55:40,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:55:40,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1770731514, now seen corresponding path program 7 times [2022-02-10 21:55:40,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:55:40,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450231820] [2022-02-10 21:55:40,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:55:40,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:55:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:55:41,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:55:41,699 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:55:41,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450231820] [2022-02-10 21:55:41,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450231820] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 21:55:41,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328695878] [2022-02-10 21:55:41,699 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-10 21:55:41,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 21:55:41,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 21:55:41,700 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) [2022-02-10 21:55:41,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-10 21:55:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:55:41,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-10 21:55:41,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 21:55:42,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-02-10 21:55:42,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 21:55:43,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-02-10 21:55:43,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328695878] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 21:55:43,604 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 21:55:43,604 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 33, 33] total 100 [2022-02-10 21:55:43,604 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245284369] [2022-02-10 21:55:43,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 21:55:43,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-02-10 21:55:43,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:55:43,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-02-10 21:55:43,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1398, Invalid=8502, Unknown=0, NotChecked=0, Total=9900 [2022-02-10 21:55:43,607 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... [2022-02-10 22:02:57,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2917 states. [2022-02-10 22:02:57,860 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 [2022-02-10 22:02:57,860 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 [2022-02-10 22:02:58,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-10 22:02:58,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2022-02-10 22:02:59,161 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6305 GetRequests, 3291 SyntacticMatches, 1 SemanticMatches, 3012 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5274430 ImplicationChecksByTransitivity, 201.8s TimeCoverageRelationStatistics Valid=1757277, Invalid=7323905, Unknown=0, NotChecked=0, Total=9081182 [2022-02-10 22:02:59,162 INFO L934 BasicCegarLoop]: 92 mSDtfsCounter, 22645 mSDsluCounter, 3703 mSDsCounter, 0 mSdLazyCounter, 2624 mSolverCounterSat, 10561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22645 SdHoareTripleChecker+Valid, 3785 SdHoareTripleChecker+Invalid, 13185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10561 IncrementalHoareTripleChecker+Valid, 2624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:02:59,162 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [22645 Valid, 3785 Invalid, 13185 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10561 Valid, 2624 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-02-10 22:02:59,163 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-10 22:02:59,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-10 22:02:59,164 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (14830states) and FLOYD_HOARE automaton (currently 2917 states, 100 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 3014 known predicates. [2022-02-10 22:02:59,165 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-10 22:02:59,167 INFO L733 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1] [2022-02-10 22:02:59,169 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 22:02:59,169 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 22:02:59,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 10:02:59 BasicIcfg [2022-02-10 22:02:59,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 22:02:59,171 INFO L158 Benchmark]: Toolchain (without parser) took 732126.77ms. Allocated memory was 176.2MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 119.9MB in the beginning and 5.5GB in the end (delta: -5.4GB). Peak memory consumption was 2.6GB. Max. memory is 8.0GB. [2022-02-10 22:02:59,171 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory is still 138.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 22:02:59,171 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.66ms. Allocated memory was 176.2MB in the beginning and 267.4MB in the end (delta: 91.2MB). Free memory was 119.7MB in the beginning and 212.8MB in the end (delta: -93.2MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-02-10 22:02:59,171 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.53ms. Allocated memory is still 267.4MB. Free memory was 212.8MB in the beginning and 210.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-10 22:02:59,172 INFO L158 Benchmark]: Boogie Preprocessor took 28.08ms. Allocated memory is still 267.4MB. Free memory was 210.2MB in the beginning and 208.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 22:02:59,172 INFO L158 Benchmark]: RCFGBuilder took 326.33ms. Allocated memory is still 267.4MB. Free memory was 208.6MB in the beginning and 195.5MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-10 22:02:59,172 INFO L158 Benchmark]: TraceAbstraction took 731170.68ms. Allocated memory was 267.4MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 195.0MB in the beginning and 5.5GB in the end (delta: -5.3GB). Peak memory consumption was 2.6GB. Max. memory is 8.0GB. [2022-02-10 22:02:59,173 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory is still 138.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 537.66ms. Allocated memory was 176.2MB in the beginning and 267.4MB in the end (delta: 91.2MB). Free memory was 119.7MB in the beginning and 212.8MB in the end (delta: -93.2MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.53ms. Allocated memory is still 267.4MB. Free memory was 212.8MB in the beginning and 210.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.08ms. Allocated memory is still 267.4MB. Free memory was 210.2MB in the beginning and 208.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 326.33ms. Allocated memory is still 267.4MB. Free memory was 208.6MB in the beginning and 195.5MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 731170.68ms. Allocated memory was 267.4MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 195.0MB in the beginning and 5.5GB in the end (delta: -5.3GB). Peak memory consumption was 2.6GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (14830states) and FLOYD_HOARE automaton (currently 2917 states, 100 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 3014 known predicates. - TimeoutResultAtElement [Line: 1336]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (14830states) and FLOYD_HOARE automaton (currently 2917 states, 100 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 3014 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 110 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 731.1s, OverallIterations: 10, TraceHistogramMax: 20, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 720.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63913 SdHoareTripleChecker+Valid, 9.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63913 mSDsluCounter, 11267 SdHoareTripleChecker+Invalid, 7.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10321 mSDsCounter, 16155 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4147 IncrementalHoareTripleChecker+Invalid, 20302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16155 mSolverCounterUnsat, 1019 mSDtfsCounter, 4147 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13787 GetRequests, 7774 SyntacticMatches, 1 SemanticMatches, 6011 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8889643 ImplicationChecksByTransitivity, 462.0s 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: 1.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 438 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 2540 NumberOfCodeBlocks, 2500 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 3647 ConstructedInterpolants, 0 QuantifiedInterpolants, 5874 SizeOfPredicates, 80 NumberOfNonLiveVariables, 2259 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 25 InterpolantComputations, 3 PerfectInterpolantSequences, 6795/12683 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown