/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-lit/fkp2014.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:14:34,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:14:34,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:14:34,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 10:14:34,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:14:34,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:14:34,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:14:34,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:14:34,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:14:34,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:14:34,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:14:34,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:14:34,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:14:34,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:14:34,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:14:34,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:14:34,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 10:14:34,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:14:34,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:14:34,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:14:34,575 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-06-05 10:14:34,609 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:14:34,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:14:34,610 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:14:34,610 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:14:34,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:14:34,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:14:34,613 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:14:34,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:14:34,613 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:14:34,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:14:34,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:14:34,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:14:34,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:14:34,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:14:34,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:14:34,614 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:14:34,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:14:34,615 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:14:34,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:14:34,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:14:34,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:14:34,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:14:34,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:14:34,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:14:34,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:14:34,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:14:34,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:14:34,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:14:34,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:14:34,616 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:14:34,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:14:34,616 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:14:34,617 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:14:34,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:14:34,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:14:34,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:14:34,949 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:14:34,953 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:14:34,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2014.i [2021-06-05 10:14:35,010 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6002568/621c0449a40f4b20826900630f39a963/FLAG591d267fb [2021-06-05 10:14:35,420 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:14:35,421 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2014.i [2021-06-05 10:14:35,436 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6002568/621c0449a40f4b20826900630f39a963/FLAG591d267fb [2021-06-05 10:14:35,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6002568/621c0449a40f4b20826900630f39a963 [2021-06-05 10:14:35,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:14:35,787 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:14:35,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:14:35,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:14:35,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:14:35,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:14:35" (1/1) ... [2021-06-05 10:14:35,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a64453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:35, skipping insertion in model container [2021-06-05 10:14:35,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:14:35" (1/1) ... [2021-06-05 10:14:35,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:14:35,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:14:36,092 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2014.i[30003,30016] [2021-06-05 10:14:36,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:14:36,108 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:14:36,134 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2014.i[30003,30016] [2021-06-05 10:14:36,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:14:36,208 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:14:36,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:36 WrapperNode [2021-06-05 10:14:36,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:14:36,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:14:36,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:14:36,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:14:36,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:36" (1/1) ... [2021-06-05 10:14:36,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:36" (1/1) ... [2021-06-05 10:14:36,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:14:36,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:14:36,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:14:36,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:14:36,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:36" (1/1) ... [2021-06-05 10:14:36,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:36" (1/1) ... [2021-06-05 10:14:36,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:36" (1/1) ... [2021-06-05 10:14:36,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:36" (1/1) ... [2021-06-05 10:14:36,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:36" (1/1) ... [2021-06-05 10:14:36,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:36" (1/1) ... [2021-06-05 10:14:36,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:36" (1/1) ... [2021-06-05 10:14:36,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:14:36,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:14:36,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:14:36,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:14:36,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:14:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:14:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:14:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2021-06-05 10:14:36,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2021-06-05 10:14:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:14:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:14:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:14:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:14:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:14:36,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:14:36,334 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:14:36,730 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:14:36,731 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-06-05 10:14:36,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:14:36 BoogieIcfgContainer [2021-06-05 10:14:36,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:14:36,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:14:36,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:14:36,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:14:36,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:14:35" (1/3) ... [2021-06-05 10:14:36,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afe52b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:14:36, skipping insertion in model container [2021-06-05 10:14:36,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:36" (2/3) ... [2021-06-05 10:14:36,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afe52b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:14:36, skipping insertion in model container [2021-06-05 10:14:36,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:14:36" (3/3) ... [2021-06-05 10:14:36,738 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2021-06-05 10:14:36,744 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:14:36,745 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:14:36,745 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:14:36,746 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:14:36,774 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,774 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,774 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,774 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,775 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,775 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,775 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,775 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,775 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,776 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,776 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,776 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,776 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,777 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,777 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,777 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,777 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,777 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,778 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,778 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,779 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,779 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,779 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,780 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,780 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,781 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,781 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,782 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,782 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,782 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,782 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,782 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,784 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,784 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,785 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,785 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,785 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,785 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,786 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,786 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:36,789 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:14:36,809 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 10:14:36,836 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:14:36,836 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:14:36,836 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:14:36,836 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:14:36,837 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:14:36,837 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:14:36,837 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:14:36,837 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:14:36,845 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 58 transitions, 121 flow [2021-06-05 10:14:36,871 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 290 states, 285 states have (on average 1.919298245614035) internal successors, (547), 289 states have internal predecessors, (547), 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) [2021-06-05 10:14:36,881 INFO L276 IsEmpty]: Start isEmpty. Operand has 290 states, 285 states have (on average 1.919298245614035) internal successors, (547), 289 states have internal predecessors, (547), 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) [2021-06-05 10:14:36,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 10:14:36,888 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:36,889 INFO L521 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] [2021-06-05 10:14:36,889 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:36,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:36,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1444704092, now seen corresponding path program 1 times [2021-06-05 10:14:36,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:36,901 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010353718] [2021-06-05 10:14:36,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:37,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:37,194 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:37,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010353718] [2021-06-05 10:14:37,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010353718] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:37,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:37,196 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:14:37,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871193867] [2021-06-05 10:14:37,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:14:37,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:37,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:14:37,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:14:37,217 INFO L87 Difference]: Start difference. First operand has 290 states, 285 states have (on average 1.919298245614035) internal successors, (547), 289 states have internal predecessors, (547), 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 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2021-06-05 10:14:37,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:37,334 INFO L93 Difference]: Finished difference Result 239 states and 414 transitions. [2021-06-05 10:14:37,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:14:37,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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 36 [2021-06-05 10:14:37,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:37,340 INFO L225 Difference]: With dead ends: 239 [2021-06-05 10:14:37,340 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:14:37,343 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 92.2ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 10:14:37,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:14:37,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:14:37,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-05 10:14:37,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:14:37,361 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2021-06-05 10:14:37,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:37,362 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:14:37,363 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2021-06-05 10:14:37,363 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:14:37,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:14:37,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:14:37,364 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 10:14:37,366 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 10:14:37,373 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:14:37,373 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:14:37,374 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:14:37,374 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:14:37,377 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:14:37,377 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:14:37,377 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:14:37,377 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 10:14:37,381 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 58 transitions, 121 flow [2021-06-05 10:14:37,388 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 290 states, 285 states have (on average 1.919298245614035) internal successors, (547), 289 states have internal predecessors, (547), 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) [2021-06-05 10:14:37,391 INFO L276 IsEmpty]: Start isEmpty. Operand has 290 states, 285 states have (on average 1.919298245614035) internal successors, (547), 289 states have internal predecessors, (547), 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) [2021-06-05 10:14:37,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-06-05 10:14:37,393 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:37,394 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:37,394 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 10:14:37,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:37,395 INFO L82 PathProgramCache]: Analyzing trace with hash -48038796, now seen corresponding path program 1 times [2021-06-05 10:14:37,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:37,395 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655501870] [2021-06-05 10:14:37,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:37,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 10:14:37,426 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 10:14:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 10:14:37,458 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 10:14:37,483 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 10:14:37,483 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 10:14:37,483 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:14:37,483 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 10:14:37,484 WARN L242 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 10:14:37,484 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-06-05 10:14:37,503 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,503 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,503 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,503 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,504 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,504 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,504 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,504 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,504 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,504 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,505 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,505 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,505 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,506 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,506 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,506 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,506 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,507 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,507 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,507 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,507 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,507 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,508 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,508 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,508 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,509 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,509 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,509 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,509 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,509 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,510 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,510 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,510 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,510 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,510 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,510 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,511 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,511 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,511 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,511 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,512 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,512 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,513 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,513 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,514 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,514 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,514 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,514 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,514 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,514 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,514 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,515 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,515 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,515 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,515 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,515 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,515 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,516 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,516 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,520 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,520 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,520 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,520 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,521 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,521 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,521 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,521 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,522 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,522 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,522 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,522 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,522 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,524 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,524 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,524 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,524 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,525 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,525 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,525 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,525 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:37,526 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:14:37,527 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-05 10:14:37,528 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:14:37,528 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:14:37,528 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:14:37,528 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:14:37,528 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:14:37,529 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:14:37,529 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:14:37,529 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:14:37,531 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 74 transitions, 160 flow [2021-06-05 10:14:37,685 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4100 states, 4089 states have (on average 2.9364147713377355) internal successors, (12007), 4099 states have internal predecessors, (12007), 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) [2021-06-05 10:14:37,698 INFO L276 IsEmpty]: Start isEmpty. Operand has 4100 states, 4089 states have (on average 2.9364147713377355) internal successors, (12007), 4099 states have internal predecessors, (12007), 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) [2021-06-05 10:14:37,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 10:14:37,703 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:37,703 INFO L521 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] [2021-06-05 10:14:37,704 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:37,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:37,704 INFO L82 PathProgramCache]: Analyzing trace with hash -2135097749, now seen corresponding path program 1 times [2021-06-05 10:14:37,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:37,706 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901254130] [2021-06-05 10:14:37,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:37,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:37,808 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:37,808 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901254130] [2021-06-05 10:14:37,810 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901254130] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:37,810 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:37,811 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:14:37,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968286862] [2021-06-05 10:14:37,811 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:14:37,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:37,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:14:37,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:14:37,822 INFO L87 Difference]: Start difference. First operand has 4100 states, 4089 states have (on average 2.9364147713377355) internal successors, (12007), 4099 states have internal predecessors, (12007), 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 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2021-06-05 10:14:37,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:37,970 INFO L93 Difference]: Finished difference Result 3593 states and 9640 transitions. [2021-06-05 10:14:37,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:14:37,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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 36 [2021-06-05 10:14:37,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:37,998 INFO L225 Difference]: With dead ends: 3593 [2021-06-05 10:14:37,998 INFO L226 Difference]: Without dead ends: 2579 [2021-06-05 10:14:37,999 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 52.5ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 10:14:38,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2579 states. [2021-06-05 10:14:38,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2579 to 2579. [2021-06-05 10:14:38,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2579 states, 2575 states have (on average 2.6722330097087377) internal successors, (6881), 2578 states have internal predecessors, (6881), 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) [2021-06-05 10:14:38,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2579 states to 2579 states and 6881 transitions. [2021-06-05 10:14:38,122 INFO L78 Accepts]: Start accepts. Automaton has 2579 states and 6881 transitions. Word has length 36 [2021-06-05 10:14:38,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:38,123 INFO L482 AbstractCegarLoop]: Abstraction has 2579 states and 6881 transitions. [2021-06-05 10:14:38,123 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2021-06-05 10:14:38,123 INFO L276 IsEmpty]: Start isEmpty. Operand 2579 states and 6881 transitions. [2021-06-05 10:14:38,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 10:14:38,125 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:38,125 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:38,125 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:14:38,126 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:38,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:38,126 INFO L82 PathProgramCache]: Analyzing trace with hash 833705753, now seen corresponding path program 1 times [2021-06-05 10:14:38,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:38,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651779794] [2021-06-05 10:14:38,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:38,196 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:38,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:38,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651779794] [2021-06-05 10:14:38,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651779794] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:38,197 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:38,197 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:14:38,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447315655] [2021-06-05 10:14:38,198 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:14:38,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:38,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:14:38,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:14:38,199 INFO L87 Difference]: Start difference. First operand 2579 states and 6881 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2021-06-05 10:14:38,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:38,331 INFO L93 Difference]: Finished difference Result 2426 states and 6329 transitions. [2021-06-05 10:14:38,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:14:38,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 46 [2021-06-05 10:14:38,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:38,340 INFO L225 Difference]: With dead ends: 2426 [2021-06-05 10:14:38,340 INFO L226 Difference]: Without dead ends: 2018 [2021-06-05 10:14:38,341 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 48.1ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 10:14:38,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2021-06-05 10:14:38,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 2018. [2021-06-05 10:14:38,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2018 states, 2014 states have (on average 2.5719960278053624) internal successors, (5180), 2017 states have internal predecessors, (5180), 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) [2021-06-05 10:14:38,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2018 states to 2018 states and 5180 transitions. [2021-06-05 10:14:38,399 INFO L78 Accepts]: Start accepts. Automaton has 2018 states and 5180 transitions. Word has length 46 [2021-06-05 10:14:38,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:38,399 INFO L482 AbstractCegarLoop]: Abstraction has 2018 states and 5180 transitions. [2021-06-05 10:14:38,400 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2021-06-05 10:14:38,400 INFO L276 IsEmpty]: Start isEmpty. Operand 2018 states and 5180 transitions. [2021-06-05 10:14:38,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 10:14:38,404 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:38,404 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:38,405 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:14:38,405 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:38,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:38,405 INFO L82 PathProgramCache]: Analyzing trace with hash -239139401, now seen corresponding path program 1 times [2021-06-05 10:14:38,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:38,406 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690177701] [2021-06-05 10:14:38,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:38,557 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:38,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:38,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690177701] [2021-06-05 10:14:38,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690177701] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:38,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:38,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 10:14:38,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283174274] [2021-06-05 10:14:38,558 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 10:14:38,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:38,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 10:14:38,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-05 10:14:38,559 INFO L87 Difference]: Start difference. First operand 2018 states and 5180 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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) [2021-06-05 10:14:38,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:38,713 INFO L93 Difference]: Finished difference Result 2528 states and 6408 transitions. [2021-06-05 10:14:38,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 10:14:38,717 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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 55 [2021-06-05 10:14:38,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:38,727 INFO L225 Difference]: With dead ends: 2528 [2021-06-05 10:14:38,728 INFO L226 Difference]: Without dead ends: 2239 [2021-06-05 10:14:38,728 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 103.2ms TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-06-05 10:14:38,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2239 states. [2021-06-05 10:14:38,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2239 to 1933. [2021-06-05 10:14:38,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1933 states, 1929 states have (on average 2.5469155002592014) internal successors, (4913), 1932 states have internal predecessors, (4913), 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) [2021-06-05 10:14:38,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1933 states to 1933 states and 4913 transitions. [2021-06-05 10:14:38,779 INFO L78 Accepts]: Start accepts. Automaton has 1933 states and 4913 transitions. Word has length 55 [2021-06-05 10:14:38,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:38,780 INFO L482 AbstractCegarLoop]: Abstraction has 1933 states and 4913 transitions. [2021-06-05 10:14:38,780 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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) [2021-06-05 10:14:38,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1933 states and 4913 transitions. [2021-06-05 10:14:38,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 10:14:38,783 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:38,783 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:38,783 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:14:38,784 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:38,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:38,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1753745729, now seen corresponding path program 2 times [2021-06-05 10:14:38,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:38,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584037301] [2021-06-05 10:14:38,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:38,900 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:38,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:38,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584037301] [2021-06-05 10:14:38,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584037301] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:38,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:38,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 10:14:38,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452374823] [2021-06-05 10:14:38,902 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 10:14:38,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:38,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 10:14:38,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-06-05 10:14:38,903 INFO L87 Difference]: Start difference. First operand 1933 states and 4913 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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) [2021-06-05 10:14:39,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:39,006 INFO L93 Difference]: Finished difference Result 2137 states and 5394 transitions. [2021-06-05 10:14:39,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 10:14:39,007 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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 55 [2021-06-05 10:14:39,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:39,014 INFO L225 Difference]: With dead ends: 2137 [2021-06-05 10:14:39,014 INFO L226 Difference]: Without dead ends: 1445 [2021-06-05 10:14:39,015 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 71.4ms TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:14:39,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2021-06-05 10:14:39,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1139. [2021-06-05 10:14:39,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 1137 states have (on average 2.542656112576957) internal successors, (2891), 1138 states have internal predecessors, (2891), 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) [2021-06-05 10:14:39,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 2891 transitions. [2021-06-05 10:14:39,042 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 2891 transitions. Word has length 55 [2021-06-05 10:14:39,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:39,042 INFO L482 AbstractCegarLoop]: Abstraction has 1139 states and 2891 transitions. [2021-06-05 10:14:39,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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) [2021-06-05 10:14:39,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 2891 transitions. [2021-06-05 10:14:39,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 10:14:39,044 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:39,045 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:39,045 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:14:39,045 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:39,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:39,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1026825786, now seen corresponding path program 1 times [2021-06-05 10:14:39,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:39,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103937401] [2021-06-05 10:14:39,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:39,162 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:39,163 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:39,163 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103937401] [2021-06-05 10:14:39,163 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103937401] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:39,163 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:39,163 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 10:14:39,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507365214] [2021-06-05 10:14:39,164 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 10:14:39,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:39,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 10:14:39,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-05 10:14:39,165 INFO L87 Difference]: Start difference. First operand 1139 states and 2891 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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) [2021-06-05 10:14:39,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:39,233 INFO L93 Difference]: Finished difference Result 1343 states and 3372 transitions. [2021-06-05 10:14:39,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:14:39,233 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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 55 [2021-06-05 10:14:39,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:39,237 INFO L225 Difference]: With dead ends: 1343 [2021-06-05 10:14:39,237 INFO L226 Difference]: Without dead ends: 976 [2021-06-05 10:14:39,238 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 48.8ms TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:14:39,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2021-06-05 10:14:39,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 976. [2021-06-05 10:14:39,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 974 states have (on average 2.4856262833675564) internal successors, (2421), 975 states have internal predecessors, (2421), 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) [2021-06-05 10:14:39,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 2421 transitions. [2021-06-05 10:14:39,258 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 2421 transitions. Word has length 55 [2021-06-05 10:14:39,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:39,258 INFO L482 AbstractCegarLoop]: Abstraction has 976 states and 2421 transitions. [2021-06-05 10:14:39,258 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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) [2021-06-05 10:14:39,258 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 2421 transitions. [2021-06-05 10:14:39,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 10:14:39,260 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:39,260 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:39,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:14:39,260 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:39,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:39,261 INFO L82 PathProgramCache]: Analyzing trace with hash 746545074, now seen corresponding path program 2 times [2021-06-05 10:14:39,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:39,261 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837081415] [2021-06-05 10:14:39,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:39,366 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:39,367 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:39,367 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837081415] [2021-06-05 10:14:39,367 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837081415] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:39,367 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:39,368 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 10:14:39,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985952408] [2021-06-05 10:14:39,368 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 10:14:39,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:39,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 10:14:39,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-06-05 10:14:39,370 INFO L87 Difference]: Start difference. First operand 976 states and 2421 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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) [2021-06-05 10:14:39,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:39,447 INFO L93 Difference]: Finished difference Result 874 states and 2155 transitions. [2021-06-05 10:14:39,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:14:39,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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 55 [2021-06-05 10:14:39,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:39,447 INFO L225 Difference]: With dead ends: 874 [2021-06-05 10:14:39,447 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:14:39,450 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 64.7ms TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:14:39,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:14:39,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:14:39,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-05 10:14:39,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:14:39,451 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2021-06-05 10:14:39,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:39,451 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:14:39,451 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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) [2021-06-05 10:14:39,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:14:39,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:14:39,451 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:14:39,452 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 10:14:39,452 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 10:14:39,454 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:14:39,454 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:14:39,454 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:14:39,454 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:14:39,454 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:14:39,454 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:14:39,454 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:14:39,454 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 10:14:39,459 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 74 transitions, 160 flow [2021-06-05 10:14:39,567 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4100 states, 4089 states have (on average 2.9364147713377355) internal successors, (12007), 4099 states have internal predecessors, (12007), 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) [2021-06-05 10:14:39,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 4100 states, 4089 states have (on average 2.9364147713377355) internal successors, (12007), 4099 states have internal predecessors, (12007), 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) [2021-06-05 10:14:39,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 10:14:39,578 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:39,578 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:39,578 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 10:14:39,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:39,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1193079360, now seen corresponding path program 1 times [2021-06-05 10:14:39,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:39,579 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357301124] [2021-06-05 10:14:39,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 10:14:39,600 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 10:14:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 10:14:39,611 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 10:14:39,622 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 10:14:39,622 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 10:14:39,622 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 10:14:39,623 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 10:14:39,623 WARN L242 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 10:14:39,623 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-06-05 10:14:39,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,635 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,635 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,635 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,636 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,636 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,636 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,636 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,636 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,636 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,636 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,636 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,637 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,637 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,637 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,637 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,637 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,637 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,637 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,637 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,637 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,638 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,638 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,638 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,638 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,638 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,638 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,638 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,638 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,639 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,639 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,639 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,639 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,639 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,639 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,639 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,639 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,639 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,640 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,640 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,640 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,640 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,640 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,640 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,640 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,640 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,641 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,641 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,641 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,641 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,641 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,641 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,641 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,641 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,642 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,642 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,642 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,642 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,642 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,642 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,642 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,643 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,644 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,644 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,644 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,644 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,644 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,644 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,644 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,644 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,644 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,645 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,645 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,645 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,645 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,645 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,646 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,646 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,646 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,646 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,646 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,646 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,647 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,647 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,647 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,647 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,647 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,648 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,648 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,649 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,649 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,649 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,649 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,649 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,650 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,650 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,650 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,650 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,650 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,650 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,650 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,652 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,652 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,652 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,652 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,653 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,653 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,653 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,653 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,654 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,654 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,654 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,655 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,655 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,655 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,655 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,655 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:39,657 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:14:39,657 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 10:14:39,659 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:14:39,659 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:14:39,659 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:14:39,659 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:14:39,659 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:14:39,659 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:14:39,659 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:14:39,659 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:14:39,661 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 90 transitions, 201 flow [2021-06-05 10:14:46,512 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 61250 states, 61227 states have (on average 3.9371029121139367) internal successors, (241057), 61249 states have internal predecessors, (241057), 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) [2021-06-05 10:14:46,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 61250 states, 61227 states have (on average 3.9371029121139367) internal successors, (241057), 61249 states have internal predecessors, (241057), 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) [2021-06-05 10:14:46,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 10:14:46,597 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:46,597 INFO L521 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] [2021-06-05 10:14:46,597 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:46,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:46,598 INFO L82 PathProgramCache]: Analyzing trace with hash 563397242, now seen corresponding path program 1 times [2021-06-05 10:14:46,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:46,598 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520254541] [2021-06-05 10:14:46,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:46,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:46,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:46,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520254541] [2021-06-05 10:14:46,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520254541] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:46,759 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:46,759 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:14:46,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125557739] [2021-06-05 10:14:46,759 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:14:46,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:46,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:14:46,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:14:46,838 INFO L87 Difference]: Start difference. First operand has 61250 states, 61227 states have (on average 3.9371029121139367) internal successors, (241057), 61249 states have internal predecessors, (241057), 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 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2021-06-05 10:14:47,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:47,477 INFO L93 Difference]: Finished difference Result 56129 states and 202038 transitions. [2021-06-05 10:14:47,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:14:47,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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 36 [2021-06-05 10:14:47,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:47,764 INFO L225 Difference]: With dead ends: 56129 [2021-06-05 10:14:47,764 INFO L226 Difference]: Without dead ends: 50535 [2021-06-05 10:14:47,766 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 42.9ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 10:14:48,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50535 states. [2021-06-05 10:14:49,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50535 to 45795. [2021-06-05 10:14:49,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45795 states, 45781 states have (on average 3.6196457045499226) internal successors, (165711), 45794 states have internal predecessors, (165711), 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) [2021-06-05 10:14:50,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45795 states to 45795 states and 165711 transitions. [2021-06-05 10:14:50,257 INFO L78 Accepts]: Start accepts. Automaton has 45795 states and 165711 transitions. Word has length 36 [2021-06-05 10:14:50,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:50,257 INFO L482 AbstractCegarLoop]: Abstraction has 45795 states and 165711 transitions. [2021-06-05 10:14:50,258 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2021-06-05 10:14:50,258 INFO L276 IsEmpty]: Start isEmpty. Operand 45795 states and 165711 transitions. [2021-06-05 10:14:50,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 10:14:50,259 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:50,259 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:50,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 10:14:50,260 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:50,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:50,260 INFO L82 PathProgramCache]: Analyzing trace with hash -480086985, now seen corresponding path program 1 times [2021-06-05 10:14:50,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:50,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175102050] [2021-06-05 10:14:50,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:50,314 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:50,314 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:50,314 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175102050] [2021-06-05 10:14:50,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175102050] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:50,314 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:50,314 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:14:50,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987525988] [2021-06-05 10:14:50,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:14:50,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:50,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:14:50,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:14:50,316 INFO L87 Difference]: Start difference. First operand 45795 states and 165711 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2021-06-05 10:14:50,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:50,866 INFO L93 Difference]: Finished difference Result 51309 states and 182242 transitions. [2021-06-05 10:14:50,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:14:50,867 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 46 [2021-06-05 10:14:50,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:51,048 INFO L225 Difference]: With dead ends: 51309 [2021-06-05 10:14:51,048 INFO L226 Difference]: Without dead ends: 49125 [2021-06-05 10:14:51,049 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 37.4ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 10:14:51,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49125 states. [2021-06-05 10:14:52,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49125 to 44385. [2021-06-05 10:14:52,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44385 states, 44371 states have (on average 3.5788240066710237) internal successors, (158796), 44384 states have internal predecessors, (158796), 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) [2021-06-05 10:14:52,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44385 states to 44385 states and 158796 transitions. [2021-06-05 10:14:52,465 INFO L78 Accepts]: Start accepts. Automaton has 44385 states and 158796 transitions. Word has length 46 [2021-06-05 10:14:52,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:52,465 INFO L482 AbstractCegarLoop]: Abstraction has 44385 states and 158796 transitions. [2021-06-05 10:14:52,466 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2021-06-05 10:14:52,466 INFO L276 IsEmpty]: Start isEmpty. Operand 44385 states and 158796 transitions. [2021-06-05 10:14:52,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 10:14:52,470 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:52,470 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:52,471 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 10:14:52,471 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:52,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:52,471 INFO L82 PathProgramCache]: Analyzing trace with hash -738494076, now seen corresponding path program 1 times [2021-06-05 10:14:52,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:52,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585903036] [2021-06-05 10:14:52,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:52,786 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:52,786 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:52,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585903036] [2021-06-05 10:14:52,786 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585903036] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:52,787 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458952606] [2021-06-05 10:14:52,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:14:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:52,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-05 10:14:52,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:14:53,266 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:53,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458952606] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:53,267 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:14:53,267 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-06-05 10:14:53,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413237518] [2021-06-05 10:14:53,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-05 10:14:53,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:53,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-05 10:14:53,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-06-05 10:14:53,268 INFO L87 Difference]: Start difference. First operand 44385 states and 158796 transitions. Second operand has 16 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 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) [2021-06-05 10:14:54,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:54,005 INFO L93 Difference]: Finished difference Result 44646 states and 158247 transitions. [2021-06-05 10:14:54,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 10:14:54,006 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 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 55 [2021-06-05 10:14:54,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:54,179 INFO L225 Difference]: With dead ends: 44646 [2021-06-05 10:14:54,180 INFO L226 Difference]: Without dead ends: 41799 [2021-06-05 10:14:54,180 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 504.8ms TimeCoverageRelationStatistics Valid=254, Invalid=616, Unknown=0, NotChecked=0, Total=870 [2021-06-05 10:14:54,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41799 states. [2021-06-05 10:14:55,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41799 to 37119. [2021-06-05 10:14:55,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37119 states, 37110 states have (on average 3.5790622473726756) internal successors, (132819), 37118 states have internal predecessors, (132819), 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) [2021-06-05 10:14:55,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37119 states to 37119 states and 132819 transitions. [2021-06-05 10:14:55,632 INFO L78 Accepts]: Start accepts. Automaton has 37119 states and 132819 transitions. Word has length 55 [2021-06-05 10:14:55,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:55,633 INFO L482 AbstractCegarLoop]: Abstraction has 37119 states and 132819 transitions. [2021-06-05 10:14:55,633 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 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) [2021-06-05 10:14:55,633 INFO L276 IsEmpty]: Start isEmpty. Operand 37119 states and 132819 transitions. [2021-06-05 10:14:55,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 10:14:55,637 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:55,637 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:55,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-05 10:14:55,842 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:55,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:55,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1482144640, now seen corresponding path program 1 times [2021-06-05 10:14:55,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:55,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196587411] [2021-06-05 10:14:55,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:55,944 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:55,945 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:55,945 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196587411] [2021-06-05 10:14:55,945 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196587411] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:55,945 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415452584] [2021-06-05 10:14:55,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:14:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:56,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-05 10:14:56,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:14:56,226 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:56,227 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415452584] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:56,227 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 10:14:56,227 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2021-06-05 10:14:56,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115365888] [2021-06-05 10:14:56,227 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 10:14:56,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:56,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 10:14:56,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-06-05 10:14:56,228 INFO L87 Difference]: Start difference. First operand 37119 states and 132819 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 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) [2021-06-05 10:14:57,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:57,035 INFO L93 Difference]: Finished difference Result 52023 states and 183450 transitions. [2021-06-05 10:14:57,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-05 10:14:57,036 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 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 55 [2021-06-05 10:14:57,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:57,250 INFO L225 Difference]: With dead ends: 52023 [2021-06-05 10:14:57,250 INFO L226 Difference]: Without dead ends: 50367 [2021-06-05 10:14:57,251 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 159.2ms TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2021-06-05 10:14:57,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50367 states. [2021-06-05 10:14:58,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50367 to 40257. [2021-06-05 10:14:58,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40257 states, 40248 states have (on average 3.5725501888292586) internal successors, (143788), 40256 states have internal predecessors, (143788), 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) [2021-06-05 10:14:58,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40257 states to 40257 states and 143788 transitions. [2021-06-05 10:14:58,588 INFO L78 Accepts]: Start accepts. Automaton has 40257 states and 143788 transitions. Word has length 55 [2021-06-05 10:14:58,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:58,588 INFO L482 AbstractCegarLoop]: Abstraction has 40257 states and 143788 transitions. [2021-06-05 10:14:58,588 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 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) [2021-06-05 10:14:58,588 INFO L276 IsEmpty]: Start isEmpty. Operand 40257 states and 143788 transitions. [2021-06-05 10:14:58,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 10:14:58,591 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:58,592 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:58,793 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-05 10:14:58,794 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:58,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:58,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1655901910, now seen corresponding path program 2 times [2021-06-05 10:14:58,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:58,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9665943] [2021-06-05 10:14:58,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:58,866 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:58,866 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:58,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9665943] [2021-06-05 10:14:58,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9665943] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:58,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:58,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 10:14:58,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836963779] [2021-06-05 10:14:58,869 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 10:14:58,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:58,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 10:14:58,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-06-05 10:14:58,870 INFO L87 Difference]: Start difference. First operand 40257 states and 143788 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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) [2021-06-05 10:14:59,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:59,629 INFO L93 Difference]: Finished difference Result 60774 states and 209807 transitions. [2021-06-05 10:14:59,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 10:14:59,645 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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 55 [2021-06-05 10:14:59,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:59,853 INFO L225 Difference]: With dead ends: 60774 [2021-06-05 10:14:59,854 INFO L226 Difference]: Without dead ends: 57885 [2021-06-05 10:14:59,854 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 79.1ms TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2021-06-05 10:15:00,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57885 states. [2021-06-05 10:15:00,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57885 to 33327. [2021-06-05 10:15:00,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33327 states, 33321 states have (on average 3.585786741094205) internal successors, (119482), 33326 states have internal predecessors, (119482), 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) [2021-06-05 10:15:01,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33327 states to 33327 states and 119482 transitions. [2021-06-05 10:15:01,008 INFO L78 Accepts]: Start accepts. Automaton has 33327 states and 119482 transitions. Word has length 55 [2021-06-05 10:15:01,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:15:01,008 INFO L482 AbstractCegarLoop]: Abstraction has 33327 states and 119482 transitions. [2021-06-05 10:15:01,008 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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) [2021-06-05 10:15:01,008 INFO L276 IsEmpty]: Start isEmpty. Operand 33327 states and 119482 transitions. [2021-06-05 10:15:01,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 10:15:01,013 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:15:01,013 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:15:01,013 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 10:15:01,013 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:15:01,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:15:01,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1497668043, now seen corresponding path program 1 times [2021-06-05 10:15:01,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:15:01,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542671285] [2021-06-05 10:15:01,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:15:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:15:01,062 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-05 10:15:01,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:15:01,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542671285] [2021-06-05 10:15:01,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542671285] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:15:01,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:15:01,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:15:01,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28274842] [2021-06-05 10:15:01,063 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:15:01,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:15:01,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:15:01,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:15:01,064 INFO L87 Difference]: Start difference. First operand 33327 states and 119482 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-06-05 10:15:01,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:15:01,311 INFO L93 Difference]: Finished difference Result 36897 states and 129200 transitions. [2021-06-05 10:15:01,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:15:01,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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 56 [2021-06-05 10:15:01,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:15:01,384 INFO L225 Difference]: With dead ends: 36897 [2021-06-05 10:15:01,385 INFO L226 Difference]: Without dead ends: 33633 [2021-06-05 10:15:01,385 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 34.8ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 10:15:01,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33633 states. [2021-06-05 10:15:02,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33633 to 30522. [2021-06-05 10:15:02,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30522 states, 30516 states have (on average 3.513009568750819) internal successors, (107203), 30521 states have internal predecessors, (107203), 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) [2021-06-05 10:15:02,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30522 states to 30522 states and 107203 transitions. [2021-06-05 10:15:02,487 INFO L78 Accepts]: Start accepts. Automaton has 30522 states and 107203 transitions. Word has length 56 [2021-06-05 10:15:02,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:15:02,488 INFO L482 AbstractCegarLoop]: Abstraction has 30522 states and 107203 transitions. [2021-06-05 10:15:02,488 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-06-05 10:15:02,488 INFO L276 IsEmpty]: Start isEmpty. Operand 30522 states and 107203 transitions. [2021-06-05 10:15:02,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-05 10:15:02,514 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:15:02,515 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:15:02,515 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 10:15:02,515 INFO L430 AbstractCegarLoop]: === Iteration 7 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:15:02,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:15:02,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1403261118, now seen corresponding path program 1 times [2021-06-05 10:15:02,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:15:02,516 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650468546] [2021-06-05 10:15:02,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:15:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:15:02,591 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-05 10:15:02,591 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:15:02,591 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650468546] [2021-06-05 10:15:02,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650468546] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:15:02,592 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426571710] [2021-06-05 10:15:02,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:15:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:15:02,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-05 10:15:02,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:15:02,907 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-05 10:15:02,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426571710] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:15:02,907 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:15:02,907 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-06-05 10:15:02,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315217687] [2021-06-05 10:15:02,908 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-05 10:15:02,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:15:02,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-05 10:15:02,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-06-05 10:15:02,909 INFO L87 Difference]: Start difference. First operand 30522 states and 107203 transitions. Second operand has 16 states, 16 states have (on average 6.8125) internal successors, (109), 16 states have internal predecessors, (109), 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) [2021-06-05 10:15:03,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:15:03,769 INFO L93 Difference]: Finished difference Result 30675 states and 106480 transitions. [2021-06-05 10:15:03,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 10:15:03,770 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.8125) internal successors, (109), 16 states have internal predecessors, (109), 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 [2021-06-05 10:15:03,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:15:03,847 INFO L225 Difference]: With dead ends: 30675 [2021-06-05 10:15:03,848 INFO L226 Difference]: Without dead ends: 27525 [2021-06-05 10:15:03,848 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 251.5ms TimeCoverageRelationStatistics Valid=254, Invalid=616, Unknown=0, NotChecked=0, Total=870 [2021-06-05 10:15:03,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27525 states. [2021-06-05 10:15:04,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27525 to 25383. [2021-06-05 10:15:04,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25383 states, 25377 states have (on average 3.4839027465815504) internal successors, (88411), 25382 states have internal predecessors, (88411), 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) [2021-06-05 10:15:04,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25383 states to 25383 states and 88411 transitions. [2021-06-05 10:15:04,402 INFO L78 Accepts]: Start accepts. Automaton has 25383 states and 88411 transitions. Word has length 65 [2021-06-05 10:15:04,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:15:04,402 INFO L482 AbstractCegarLoop]: Abstraction has 25383 states and 88411 transitions. [2021-06-05 10:15:04,402 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 6.8125) internal successors, (109), 16 states have internal predecessors, (109), 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) [2021-06-05 10:15:04,402 INFO L276 IsEmpty]: Start isEmpty. Operand 25383 states and 88411 transitions. [2021-06-05 10:15:04,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 10:15:04,450 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:15:04,450 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:15:04,651 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:15:04,651 INFO L430 AbstractCegarLoop]: === Iteration 8 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:15:04,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:15:04,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1324752079, now seen corresponding path program 1 times [2021-06-05 10:15:04,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:15:04,652 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535924855] [2021-06-05 10:15:04,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:15:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:15:04,726 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:15:04,726 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:15:04,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535924855] [2021-06-05 10:15:04,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535924855] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:15:04,727 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532729980] [2021-06-05 10:15:04,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:15:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:15:04,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 10:15:04,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:15:05,025 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:15:05,025 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532729980] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:15:05,025 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:15:05,026 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-06-05 10:15:05,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835573058] [2021-06-05 10:15:05,026 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 10:15:05,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:15:05,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 10:15:05,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:15:05,027 INFO L87 Difference]: Start difference. First operand 25383 states and 88411 transitions. Second operand has 19 states, 19 states have (on average 7.315789473684211) internal successors, (139), 19 states have internal predecessors, (139), 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) [2021-06-05 10:15:05,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:15:05,825 INFO L93 Difference]: Finished difference Result 25995 states and 90262 transitions. [2021-06-05 10:15:05,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:15:05,826 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.315789473684211) internal successors, (139), 19 states have internal predecessors, (139), 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 74 [2021-06-05 10:15:05,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:15:05,873 INFO L225 Difference]: With dead ends: 25995 [2021-06-05 10:15:05,873 INFO L226 Difference]: Without dead ends: 21093 [2021-06-05 10:15:05,874 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 315.1ms TimeCoverageRelationStatistics Valid=331, Invalid=929, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 10:15:05,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21093 states. [2021-06-05 10:15:06,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21093 to 20175. [2021-06-05 10:15:06,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20175 states, 20171 states have (on average 3.470378265827178) internal successors, (70001), 20174 states have internal predecessors, (70001), 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) [2021-06-05 10:15:06,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20175 states to 20175 states and 70001 transitions. [2021-06-05 10:15:06,345 INFO L78 Accepts]: Start accepts. Automaton has 20175 states and 70001 transitions. Word has length 74 [2021-06-05 10:15:06,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:15:06,345 INFO L482 AbstractCegarLoop]: Abstraction has 20175 states and 70001 transitions. [2021-06-05 10:15:06,345 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 7.315789473684211) internal successors, (139), 19 states have internal predecessors, (139), 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) [2021-06-05 10:15:06,345 INFO L276 IsEmpty]: Start isEmpty. Operand 20175 states and 70001 transitions. [2021-06-05 10:15:06,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 10:15:06,389 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:15:06,389 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:15:06,601 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:15:06,602 INFO L430 AbstractCegarLoop]: === Iteration 9 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:15:06,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:15:06,607 INFO L82 PathProgramCache]: Analyzing trace with hash -285142878, now seen corresponding path program 1 times [2021-06-05 10:15:06,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:15:06,607 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181514988] [2021-06-05 10:15:06,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:15:06,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:15:06,676 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:15:06,676 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:15:06,676 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181514988] [2021-06-05 10:15:06,676 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181514988] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:15:06,676 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953465698] [2021-06-05 10:15:06,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:15:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:15:06,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 10:15:06,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:15:07,093 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2021-06-05 10:15:07,165 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:15:07,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953465698] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:15:07,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:15:07,165 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-06-05 10:15:07,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795994384] [2021-06-05 10:15:07,166 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 10:15:07,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:15:07,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 10:15:07,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:15:07,166 INFO L87 Difference]: Start difference. First operand 20175 states and 70001 transitions. Second operand has 19 states, 19 states have (on average 7.315789473684211) internal successors, (139), 19 states have internal predecessors, (139), 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) [2021-06-05 10:15:07,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:15:07,653 INFO L93 Difference]: Finished difference Result 20787 states and 71852 transitions. [2021-06-05 10:15:07,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:15:07,654 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.315789473684211) internal successors, (139), 19 states have internal predecessors, (139), 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 74 [2021-06-05 10:15:07,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:15:07,683 INFO L225 Difference]: With dead ends: 20787 [2021-06-05 10:15:07,684 INFO L226 Difference]: Without dead ends: 13859 [2021-06-05 10:15:07,684 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 272.7ms TimeCoverageRelationStatistics Valid=331, Invalid=929, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 10:15:07,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13859 states. [2021-06-05 10:15:07,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13859 to 12941. [2021-06-05 10:15:07,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12941 states, 12939 states have (on average 3.455676636525234) internal successors, (44713), 12940 states have internal predecessors, (44713), 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) [2021-06-05 10:15:07,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12941 states to 12941 states and 44713 transitions. [2021-06-05 10:15:07,932 INFO L78 Accepts]: Start accepts. Automaton has 12941 states and 44713 transitions. Word has length 74 [2021-06-05 10:15:07,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:15:07,932 INFO L482 AbstractCegarLoop]: Abstraction has 12941 states and 44713 transitions. [2021-06-05 10:15:07,932 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 7.315789473684211) internal successors, (139), 19 states have internal predecessors, (139), 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) [2021-06-05 10:15:07,932 INFO L276 IsEmpty]: Start isEmpty. Operand 12941 states and 44713 transitions. [2021-06-05 10:15:07,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 10:15:07,952 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:15:07,952 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:15:08,153 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-06-05 10:15:08,154 INFO L430 AbstractCegarLoop]: === Iteration 10 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:15:08,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:15:08,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1660386042, now seen corresponding path program 1 times [2021-06-05 10:15:08,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:15:08,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155051279] [2021-06-05 10:15:08,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:15:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:15:08,226 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:15:08,226 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:15:08,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155051279] [2021-06-05 10:15:08,226 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155051279] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:15:08,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407501704] [2021-06-05 10:15:08,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:15:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:15:08,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 10:15:08,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:15:08,517 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:15:08,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407501704] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:15:08,517 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 10:15:08,517 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 20 [2021-06-05 10:15:08,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687169415] [2021-06-05 10:15:08,518 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 10:15:08,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:15:08,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 10:15:08,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2021-06-05 10:15:08,518 INFO L87 Difference]: Start difference. First operand 12941 states and 44713 transitions. Second operand has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 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) [2021-06-05 10:15:08,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:15:08,686 INFO L93 Difference]: Finished difference Result 14165 states and 48160 transitions. [2021-06-05 10:15:08,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:15:08,686 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 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 74 [2021-06-05 10:15:08,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:15:08,718 INFO L225 Difference]: With dead ends: 14165 [2021-06-05 10:15:08,718 INFO L226 Difference]: Without dead ends: 12329 [2021-06-05 10:15:08,719 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 131.5ms TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2021-06-05 10:15:08,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12329 states. [2021-06-05 10:15:09,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12329 to 12329. [2021-06-05 10:15:09,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12329 states, 12327 states have (on average 3.4150239312079176) internal successors, (42097), 12328 states have internal predecessors, (42097), 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) [2021-06-05 10:15:09,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12329 states to 12329 states and 42097 transitions. [2021-06-05 10:15:09,061 INFO L78 Accepts]: Start accepts. Automaton has 12329 states and 42097 transitions. Word has length 74 [2021-06-05 10:15:09,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:15:09,062 INFO L482 AbstractCegarLoop]: Abstraction has 12329 states and 42097 transitions. [2021-06-05 10:15:09,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 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) [2021-06-05 10:15:09,062 INFO L276 IsEmpty]: Start isEmpty. Operand 12329 states and 42097 transitions. [2021-06-05 10:15:09,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 10:15:09,080 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:15:09,081 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:15:09,285 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-06-05 10:15:09,285 INFO L430 AbstractCegarLoop]: === Iteration 11 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:15:09,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:15:09,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1935856110, now seen corresponding path program 2 times [2021-06-05 10:15:09,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:15:09,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783473688] [2021-06-05 10:15:09,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:15:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:15:09,360 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:15:09,360 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:15:09,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783473688] [2021-06-05 10:15:09,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783473688] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:15:09,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037004241] [2021-06-05 10:15:09,361 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:15:09,438 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 10:15:09,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 10:15:09,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 10:15:09,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:15:09,647 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:15:09,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037004241] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:15:09,647 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 10:15:09,647 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 19 [2021-06-05 10:15:09,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021992850] [2021-06-05 10:15:09,648 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 10:15:09,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:15:09,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 10:15:09,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:15:09,648 INFO L87 Difference]: Start difference. First operand 12329 states and 42097 transitions. Second operand has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 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) [2021-06-05 10:15:09,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:15:09,829 INFO L93 Difference]: Finished difference Result 13889 states and 46392 transitions. [2021-06-05 10:15:09,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:15:09,830 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 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 74 [2021-06-05 10:15:09,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:15:09,858 INFO L225 Difference]: With dead ends: 13889 [2021-06-05 10:15:09,858 INFO L226 Difference]: Without dead ends: 11464 [2021-06-05 10:15:09,859 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 128.4ms TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2021-06-05 10:15:09,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11464 states. [2021-06-05 10:15:10,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11464 to 11464. [2021-06-05 10:15:10,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11464 states, 11462 states have (on average 3.348804746117606) internal successors, (38384), 11463 states have internal predecessors, (38384), 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) [2021-06-05 10:15:10,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11464 states to 11464 states and 38384 transitions. [2021-06-05 10:15:10,148 INFO L78 Accepts]: Start accepts. Automaton has 11464 states and 38384 transitions. Word has length 74 [2021-06-05 10:15:10,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:15:10,149 INFO L482 AbstractCegarLoop]: Abstraction has 11464 states and 38384 transitions. [2021-06-05 10:15:10,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 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) [2021-06-05 10:15:10,149 INFO L276 IsEmpty]: Start isEmpty. Operand 11464 states and 38384 transitions. [2021-06-05 10:15:10,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 10:15:10,169 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:15:10,169 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:15:10,393 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:15:10,393 INFO L430 AbstractCegarLoop]: === Iteration 12 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:15:10,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:15:10,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1439632978, now seen corresponding path program 3 times [2021-06-05 10:15:10,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:15:10,394 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979549527] [2021-06-05 10:15:10,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:15:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:15:10,830 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:15:10,830 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:15:10,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979549527] [2021-06-05 10:15:10,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979549527] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:15:10,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280533843] [2021-06-05 10:15:10,830 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:15:10,944 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-05 10:15:10,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 10:15:10,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 10:15:10,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:15:11,156 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:15:11,157 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280533843] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:15:11,157 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 10:15:11,157 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 19 [2021-06-05 10:15:11,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268772950] [2021-06-05 10:15:11,158 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 10:15:11,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:15:11,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 10:15:11,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:15:11,159 INFO L87 Difference]: Start difference. First operand 11464 states and 38384 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 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) [2021-06-05 10:15:11,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:15:11,399 INFO L93 Difference]: Finished difference Result 12076 states and 40235 transitions. [2021-06-05 10:15:11,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:15:11,400 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 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 74 [2021-06-05 10:15:11,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:15:11,416 INFO L225 Difference]: With dead ends: 12076 [2021-06-05 10:15:11,417 INFO L226 Difference]: Without dead ends: 7333 [2021-06-05 10:15:11,417 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 378.6ms TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-06-05 10:15:11,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7333 states. [2021-06-05 10:15:11,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7333 to 7333. [2021-06-05 10:15:11,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7333 states, 7331 states have (on average 3.2237075433092346) internal successors, (23633), 7332 states have internal predecessors, (23633), 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) [2021-06-05 10:15:11,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7333 states to 7333 states and 23633 transitions. [2021-06-05 10:15:11,573 INFO L78 Accepts]: Start accepts. Automaton has 7333 states and 23633 transitions. Word has length 74 [2021-06-05 10:15:11,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:15:11,573 INFO L482 AbstractCegarLoop]: Abstraction has 7333 states and 23633 transitions. [2021-06-05 10:15:11,573 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 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) [2021-06-05 10:15:11,574 INFO L276 IsEmpty]: Start isEmpty. Operand 7333 states and 23633 transitions. [2021-06-05 10:15:11,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 10:15:11,582 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:15:11,582 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:15:11,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-06-05 10:15:11,785 INFO L430 AbstractCegarLoop]: === Iteration 13 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:15:11,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:15:11,785 INFO L82 PathProgramCache]: Analyzing trace with hash -74967972, now seen corresponding path program 4 times [2021-06-05 10:15:11,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:15:11,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902789806] [2021-06-05 10:15:11,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:15:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:15:11,849 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:15:11,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:15:11,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902789806] [2021-06-05 10:15:11,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902789806] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:15:11,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003062134] [2021-06-05 10:15:11,850 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:15:11,920 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-05 10:15:11,920 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 10:15:11,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 10:15:11,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:15:12,125 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:15:12,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003062134] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:15:12,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 10:15:12,125 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 19 [2021-06-05 10:15:12,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505083359] [2021-06-05 10:15:12,126 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 10:15:12,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:15:12,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 10:15:12,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:15:12,126 INFO L87 Difference]: Start difference. First operand 7333 states and 23633 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 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) [2021-06-05 10:15:12,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:15:12,236 INFO L93 Difference]: Finished difference Result 7027 states and 22631 transitions. [2021-06-05 10:15:12,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:15:12,237 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 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 74 [2021-06-05 10:15:12,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:15:12,237 INFO L225 Difference]: With dead ends: 7027 [2021-06-05 10:15:12,237 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:15:12,237 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 127.9ms TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2021-06-05 10:15:12,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:15:12,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:15:12,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-05 10:15:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:15:12,238 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2021-06-05 10:15:12,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:15:12,238 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:15:12,238 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 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) [2021-06-05 10:15:12,238 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:15:12,238 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:15:12,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-06-05 10:15:12,455 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 10:15:12,455 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 10:15:12,456 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:15:12,456 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:15:12,456 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:15:12,456 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:15:12,456 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:15:12,456 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:15:12,456 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:15:12,457 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 10:15:12,458 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 90 transitions, 201 flow [2021-06-05 10:15:21,928 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 61250 states, 61227 states have (on average 3.9371029121139367) internal successors, (241057), 61249 states have internal predecessors, (241057), 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) [2021-06-05 10:15:22,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 61250 states, 61227 states have (on average 3.9371029121139367) internal successors, (241057), 61249 states have internal predecessors, (241057), 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) [2021-06-05 10:15:22,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 10:15:22,019 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:15:22,019 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2021-06-05 10:15:22,020 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 10:15:22,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:15:22,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1466785323, now seen corresponding path program 1 times [2021-06-05 10:15:22,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:15:22,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9590888] [2021-06-05 10:15:22,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:15:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 10:15:22,033 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 10:15:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 10:15:22,042 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 10:15:22,057 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 10:15:22,057 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 10:15:22,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 10:15:22,057 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 10:15:22,057 WARN L242 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 10:15:22,057 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-06-05 10:15:22,066 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,066 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,066 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,066 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,066 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,066 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,067 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,067 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,067 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,067 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,067 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,067 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,067 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,067 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,068 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,068 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,068 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,068 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,068 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,068 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,068 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,068 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,068 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,068 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,069 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,069 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,069 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,069 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,069 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,069 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,069 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,069 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,070 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,070 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,070 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,070 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,070 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,070 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,070 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,070 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,071 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,071 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,071 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,071 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,071 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,071 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,071 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,071 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,071 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,071 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,071 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,071 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,071 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,071 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,072 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,072 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,072 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,072 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,072 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,072 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,072 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,072 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,072 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,072 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,072 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,072 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,072 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,073 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,073 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,073 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,073 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,073 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,073 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,073 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,073 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,073 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,073 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,073 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,073 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,073 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,074 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,074 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,074 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,074 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,074 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,074 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,074 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,078 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,080 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,080 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,080 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,080 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,081 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,081 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,081 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,081 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,081 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,081 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,081 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,081 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,082 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,082 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,082 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,082 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,082 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,082 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,083 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,083 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,084 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,085 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,085 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,085 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,085 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,085 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,085 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,086 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,087 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,087 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,087 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,087 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,087 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,087 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,087 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,088 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,089 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,089 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,089 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,089 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,089 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,089 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,089 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,090 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,090 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,090 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,090 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,091 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,091 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,091 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,091 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:22,092 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:15:22,092 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 10:15:22,092 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:15:22,093 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:15:22,093 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:15:22,093 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:15:22,093 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:15:22,093 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:15:22,093 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:15:22,093 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:15:22,237 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 106 transitions, 244 flow Received shutdown request... [2021-06-05 10:28:50,505 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 10:28:50,505 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was TIMEOUT (1/2) [2021-06-05 10:28:50,506 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 10:28:50,506 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:28:50,506 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:28:50,506 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:28:50,506 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:28:50,506 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:28:50,506 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:28:50,506 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:28:50,506 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 10:28:50,507 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 106 transitions, 244 flow [2021-06-05 10:28:50,508 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 10:28:50,508 INFO L315 ceAbstractionStarter]: Result for error location InUseError was TIMEOUT (2/2) [2021-06-05 10:28:50,508 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2021-06-05 10:28:50,513 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 10:28:50,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:28:50 BasicIcfg [2021-06-05 10:28:50,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:28:50,514 INFO L168 Benchmark]: Toolchain (without parser) took 854727.10 ms. Allocated memory was 400.6 MB in the beginning and 12.9 GB in the end (delta: 12.5 GB). Free memory was 363.4 MB in the beginning and 8.8 GB in the end (delta: -8.5 GB). Peak memory consumption was 4.0 GB. Max. memory is 16.0 GB. [2021-06-05 10:28:50,514 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 400.6 MB. Free memory was 381.1 MB in the beginning and 381.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:28:50,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 418.93 ms. Allocated memory is still 400.6 MB. Free memory was 363.2 MB in the beginning and 363.6 MB in the end (delta: -341.6 kB). Peak memory consumption was 9.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:28:50,514 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.71 ms. Allocated memory is still 400.6 MB. Free memory was 363.6 MB in the beginning and 361.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:28:50,514 INFO L168 Benchmark]: Boogie Preprocessor took 19.50 ms. Allocated memory is still 400.6 MB. Free memory was 361.4 MB in the beginning and 360.4 MB in the end (delta: 995.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:28:50,514 INFO L168 Benchmark]: RCFGBuilder took 451.25 ms. Allocated memory is still 400.6 MB. Free memory was 360.4 MB in the beginning and 338.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:28:50,514 INFO L168 Benchmark]: TraceAbstraction took 853779.86 ms. Allocated memory was 400.6 MB in the beginning and 12.9 GB in the end (delta: 12.5 GB). Free memory was 337.3 MB in the beginning and 8.8 GB in the end (delta: -8.5 GB). Peak memory consumption was 4.0 GB. Max. memory is 16.0 GB. [2021-06-05 10:28:50,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 400.6 MB. Free memory was 381.1 MB in the beginning and 381.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 418.93 ms. Allocated memory is still 400.6 MB. Free memory was 363.2 MB in the beginning and 363.6 MB in the end (delta: -341.6 kB). Peak memory consumption was 9.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.71 ms. Allocated memory is still 400.6 MB. Free memory was 363.6 MB in the beginning and 361.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.50 ms. Allocated memory is still 400.6 MB. Free memory was 361.4 MB in the beginning and 360.4 MB in the end (delta: 995.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 451.25 ms. Allocated memory is still 400.6 MB. Free memory was 360.4 MB in the beginning and 338.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 853779.86 ms. Allocated memory was 400.6 MB in the beginning and 12.9 GB in the end (delta: 12.5 GB). Free memory was 337.3 MB in the beginning and 8.8 GB in the end (delta: -8.5 GB). Peak memory consumption was 4.0 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 690]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 109 places, 106 transitions, 244 flow. Already constructed 546957 states. Currently 46997 states in worklist.. - TimeoutResultAtElement [Line: 722]: 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 initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 109 places, 106 transitions, 244 flow. Already constructed 2 states. Currently 1 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 71 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 530.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 16.5ms, AutomataDifference: 140.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 34.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 95 SDtfs, 136 SDslu, 255 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 92.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=290occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.7ms SsaConstructionTime, 33.5ms SatisfiabilityAnalysisTime, 194.0ms InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 158 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 86 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1923.7ms, OverallIterations: 6, TraceHistogramMax: 2, EmptinessCheckTime: 30.4ms, AutomataDifference: 763.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 156.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 812 SDtfs, 1256 SDslu, 2712 SDs, 0 SdLazy, 404 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 251.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 388.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4100occurred in iteration=0, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 278.3ms AutomataMinimizationTime, 6 MinimizatonAttempts, 612 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.7ms SsaConstructionTime, 61.1ms SatisfiabilityAnalysisTime, 538.0ms InterpolantComputationTime, 302 NumberOfCodeBlocks, 302 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 296 ConstructedInterpolants, 0 QuantifiedInterpolants, 1534 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 25/25 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 101 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 32797.2ms, OverallIterations: 13, TraceHistogramMax: 3, EmptinessCheckTime: 285.7ms, AutomataDifference: 8067.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6853.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2805 SDtfs, 7479 SDslu, 13453 SDs, 0 SdLazy, 2536 SolverSat, 669 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1323.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 829 GetRequests, 566 SyntacticMatches, 0 SemanticMatches, 263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1624 ImplicationChecksByTransitivity, 2464.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=61250occurred in iteration=0, InterpolantAutomatonStates: 200, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 11012.4ms AutomataMinimizationTime, 13 MinimizatonAttempts, 55917 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 125.3ms SsaConstructionTime, 262.5ms SatisfiabilityAnalysisTime, 3630.5ms InterpolantComputationTime, 1431 NumberOfCodeBlocks, 1417 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1409 ConstructedInterpolants, 0 QuantifiedInterpolants, 7582 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1290 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 22 InterpolantComputations, 9 PerfectInterpolantSequences, 187/330 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 - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 116 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 808412.8ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 808412.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 71 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 113.4ms, OverallIterations: 1, TraceHistogramMax: 2, EmptinessCheckTime: 2.8ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=290occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.9ms SsaConstructionTime, 19.8ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 2 thread instances CFG has 4 procedures, 86 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 168.9ms, OverallIterations: 1, TraceHistogramMax: 3, EmptinessCheckTime: 10.8ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 112.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4100occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0ms SsaConstructionTime, 17.5ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 3 thread instances CFG has 5 procedures, 101 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9601.2ms, OverallIterations: 1, TraceHistogramMax: 4, EmptinessCheckTime: 91.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9471.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=61250occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8ms SsaConstructionTime, 9.7ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 4 thread instances CFG has 6 procedures, 116 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 1.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown