/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-atomic/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 22:05:14,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 22:05:14,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 22:05:14,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 22:05:14,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 22:05:14,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 22:05:14,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 22:05:14,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 22:05:14,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 22:05:14,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 22:05:14,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 22:05:14,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 22:05:14,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 22:05:14,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 22:05:14,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 22:05:14,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 22:05:14,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-21 22:05:14,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 22:05:14,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 22:05:14,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 22:05:14,412 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 [2021-05-21 22:05:14,445 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 22:05:14,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 22:05:14,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 22:05:14,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 22:05:14,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 22:05:14,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 22:05:14,449 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 22:05:14,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 22:05:14,449 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 22:05:14,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 22:05:14,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 22:05:14,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 22:05:14,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 22:05:14,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 22:05:14,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 22:05:14,451 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 22:05:14,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 22:05:14,451 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 22:05:14,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 22:05:14,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 22:05:14,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 22:05:14,451 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 22:05:14,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 22:05:14,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 22:05:14,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 22:05:14,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 22:05:14,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 22:05:14,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 22:05:14,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 22:05:14,453 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 22:05:14,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 22:05:14,453 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 22:05:14,453 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 22:05:14,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 22:05:14,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 22:05:14,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 22:05:14,809 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 22:05:14,810 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 22:05:14,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2021-05-21 22:05:14,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c17a1bf8a/476d1b8d5fac49dea34e00a1ae5d9816/FLAG76ce38eb7 [2021-05-21 22:05:15,363 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 22:05:15,364 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2021-05-21 22:05:15,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c17a1bf8a/476d1b8d5fac49dea34e00a1ae5d9816/FLAG76ce38eb7 [2021-05-21 22:05:15,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c17a1bf8a/476d1b8d5fac49dea34e00a1ae5d9816 [2021-05-21 22:05:15,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 22:05:15,669 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 22:05:15,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 22:05:15,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 22:05:15,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 22:05:15,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 10:05:15" (1/1) ... [2021-05-21 22:05:15,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@678afe4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:15, skipping insertion in model container [2021-05-21 22:05:15,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 10:05:15" (1/1) ... [2021-05-21 22:05:15,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 22:05:15,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 22:05:15,848 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-05-21 22:05:15,985 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-atomic/peterson.i[30997,31010] [2021-05-21 22:05:16,000 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-atomic/peterson.i[31682,31695] [2021-05-21 22:05:16,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 22:05:16,009 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 22:05:16,060 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-05-21 22:05:16,082 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-atomic/peterson.i[30997,31010] [2021-05-21 22:05:16,084 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-atomic/peterson.i[31682,31695] [2021-05-21 22:05:16,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 22:05:16,154 INFO L208 MainTranslator]: Completed translation [2021-05-21 22:05:16,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:16 WrapperNode [2021-05-21 22:05:16,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 22:05:16,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 22:05:16,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 22:05:16,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 22:05:16,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:16" (1/1) ... [2021-05-21 22:05:16,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:16" (1/1) ... [2021-05-21 22:05:16,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 22:05:16,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 22:05:16,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 22:05:16,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 22:05:16,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:16" (1/1) ... [2021-05-21 22:05:16,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:16" (1/1) ... [2021-05-21 22:05:16,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:16" (1/1) ... [2021-05-21 22:05:16,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:16" (1/1) ... [2021-05-21 22:05:16,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:16" (1/1) ... [2021-05-21 22:05:16,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:16" (1/1) ... [2021-05-21 22:05:16,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:16" (1/1) ... [2021-05-21 22:05:16,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 22:05:16,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 22:05:16,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 22:05:16,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 22:05:16,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:16" (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 [2021-05-21 22:05:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-21 22:05:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-05-21 22:05:16,294 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-05-21 22:05:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-05-21 22:05:16,294 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-05-21 22:05:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 22:05:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 22:05:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 22:05:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 22:05:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 22:05:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 22:05:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 22:05:16,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 22:05:16,297 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 22:05:16,610 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 22:05:16,610 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-05-21 22:05:16,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 10:05:16 BoogieIcfgContainer [2021-05-21 22:05:16,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 22:05:16,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 22:05:16,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 22:05:16,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 22:05:16,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 10:05:15" (1/3) ... [2021-05-21 22:05:16,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5b87df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 10:05:16, skipping insertion in model container [2021-05-21 22:05:16,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:16" (2/3) ... [2021-05-21 22:05:16,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5b87df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 10:05:16, skipping insertion in model container [2021-05-21 22:05:16,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 10:05:16" (3/3) ... [2021-05-21 22:05:16,618 INFO L111 eAbstractionObserver]: Analyzing ICFG peterson.i [2021-05-21 22:05:16,624 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 22:05:16,624 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 22:05:16,624 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-05-21 22:05:16,625 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 22:05:16,658 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,659 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,659 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,659 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,659 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,659 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,659 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,659 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,660 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,660 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,660 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,660 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,661 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,661 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,661 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,661 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,662 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,662 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,662 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,662 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,663 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,663 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,663 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,663 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,664 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,664 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,664 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,665 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,669 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,669 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,669 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,670 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,670 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,670 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,670 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,671 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,671 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,671 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,671 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,673 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,673 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,673 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,675 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,675 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,675 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,675 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,676 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,676 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,678 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,678 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,678 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,678 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,678 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,678 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,683 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,683 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,684 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,684 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,684 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,684 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:16,699 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-05-21 22:05:16,721 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-05-21 22:05:16,742 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 22:05:16,742 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 22:05:16,742 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 22:05:16,743 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 22:05:16,743 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 22:05:16,743 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 22:05:16,743 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 22:05:16,743 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 22:05:16,754 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 80 transitions, 182 flow [2021-05-21 22:05:16,828 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1244 states, 1240 states have (on average 2.8298387096774196) internal successors, (3509), 1243 states have internal predecessors, (3509), 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) [2021-05-21 22:05:16,833 INFO L276 IsEmpty]: Start isEmpty. Operand has 1244 states, 1240 states have (on average 2.8298387096774196) internal successors, (3509), 1243 states have internal predecessors, (3509), 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) [2021-05-21 22:05:16,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-21 22:05:16,847 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:16,848 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] [2021-05-21 22:05:16,849 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:16,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:16,854 INFO L82 PathProgramCache]: Analyzing trace with hash -11332315, now seen corresponding path program 1 times [2021-05-21 22:05:16,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:16,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127245875] [2021-05-21 22:05:16,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:17,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:17,047 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:17,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127245875] [2021-05-21 22:05:17,048 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127245875] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:17,048 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:17,048 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-05-21 22:05:17,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19454814] [2021-05-21 22:05:17,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-05-21 22:05:17,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:17,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-05-21 22:05:17,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 22:05:17,066 INFO L87 Difference]: Start difference. First operand has 1244 states, 1240 states have (on average 2.8298387096774196) internal successors, (3509), 1243 states have internal predecessors, (3509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2021-05-21 22:05:17,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:17,101 INFO L93 Difference]: Finished difference Result 1244 states and 3229 transitions. [2021-05-21 22:05:17,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-21 22:05:17,103 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 28 [2021-05-21 22:05:17,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:17,125 INFO L225 Difference]: With dead ends: 1244 [2021-05-21 22:05:17,125 INFO L226 Difference]: Without dead ends: 1147 [2021-05-21 22:05:17,127 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 22:05:17,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2021-05-21 22:05:17,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1147. [2021-05-21 22:05:17,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1144 states have (on average 2.618006993006993) internal successors, (2995), 1146 states have internal predecessors, (2995), 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) [2021-05-21 22:05:17,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 2995 transitions. [2021-05-21 22:05:17,230 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 2995 transitions. Word has length 28 [2021-05-21 22:05:17,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:17,231 INFO L482 AbstractCegarLoop]: Abstraction has 1147 states and 2995 transitions. [2021-05-21 22:05:17,231 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2021-05-21 22:05:17,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 2995 transitions. [2021-05-21 22:05:17,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-21 22:05:17,232 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:17,232 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] [2021-05-21 22:05:17,233 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 22:05:17,233 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:17,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:17,234 INFO L82 PathProgramCache]: Analyzing trace with hash -11302524, now seen corresponding path program 1 times [2021-05-21 22:05:17,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:17,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137846371] [2021-05-21 22:05:17,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:17,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:17,316 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:17,316 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137846371] [2021-05-21 22:05:17,317 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137846371] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:17,317 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:17,317 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 22:05:17,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394899689] [2021-05-21 22:05:17,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 22:05:17,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:17,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 22:05:17,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 22:05:17,320 INFO L87 Difference]: Start difference. First operand 1147 states and 2995 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-05-21 22:05:17,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:17,374 INFO L93 Difference]: Finished difference Result 1151 states and 2940 transitions. [2021-05-21 22:05:17,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 22:05:17,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2021-05-21 22:05:17,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:17,382 INFO L225 Difference]: With dead ends: 1151 [2021-05-21 22:05:17,382 INFO L226 Difference]: Without dead ends: 961 [2021-05-21 22:05:17,383 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 22:05:17,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2021-05-21 22:05:17,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 904. [2021-05-21 22:05:17,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 901 states have (on average 2.5804661487236404) internal successors, (2325), 903 states have internal predecessors, (2325), 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) [2021-05-21 22:05:17,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 2325 transitions. [2021-05-21 22:05:17,416 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 2325 transitions. Word has length 28 [2021-05-21 22:05:17,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:17,417 INFO L482 AbstractCegarLoop]: Abstraction has 904 states and 2325 transitions. [2021-05-21 22:05:17,417 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-05-21 22:05:17,418 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 2325 transitions. [2021-05-21 22:05:17,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-05-21 22:05:17,426 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:17,426 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] [2021-05-21 22:05:17,427 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 22:05:17,427 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:17,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:17,434 INFO L82 PathProgramCache]: Analyzing trace with hash -679109134, now seen corresponding path program 1 times [2021-05-21 22:05:17,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:17,434 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246536797] [2021-05-21 22:05:17,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:17,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:17,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:17,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246536797] [2021-05-21 22:05:17,482 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246536797] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:17,482 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:17,482 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 22:05:17,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16446255] [2021-05-21 22:05:17,483 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 22:05:17,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:17,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 22:05:17,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 22:05:17,484 INFO L87 Difference]: Start difference. First operand 904 states and 2325 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-05-21 22:05:17,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:17,500 INFO L93 Difference]: Finished difference Result 827 states and 2076 transitions. [2021-05-21 22:05:17,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 22:05:17,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2021-05-21 22:05:17,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:17,503 INFO L225 Difference]: With dead ends: 827 [2021-05-21 22:05:17,503 INFO L226 Difference]: Without dead ends: 613 [2021-05-21 22:05:17,503 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 22:05:17,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-05-21 22:05:17,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2021-05-21 22:05:17,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 611 states have (on average 2.507364975450082) internal successors, (1532), 612 states have internal predecessors, (1532), 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) [2021-05-21 22:05:17,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 1532 transitions. [2021-05-21 22:05:17,517 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 1532 transitions. Word has length 34 [2021-05-21 22:05:17,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:17,518 INFO L482 AbstractCegarLoop]: Abstraction has 613 states and 1532 transitions. [2021-05-21 22:05:17,518 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-05-21 22:05:17,518 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 1532 transitions. [2021-05-21 22:05:17,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-21 22:05:17,520 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:17,520 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, 1, 1, 1, 1, 1] [2021-05-21 22:05:17,520 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 22:05:17,520 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:17,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:17,521 INFO L82 PathProgramCache]: Analyzing trace with hash 960636576, now seen corresponding path program 1 times [2021-05-21 22:05:17,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:17,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336058454] [2021-05-21 22:05:17,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:17,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:17,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:17,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336058454] [2021-05-21 22:05:17,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336058454] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:17,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:17,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 22:05:17,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875828892] [2021-05-21 22:05:17,613 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 22:05:17,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:17,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 22:05:17,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-05-21 22:05:17,618 INFO L87 Difference]: Start difference. First operand 613 states and 1532 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) [2021-05-21 22:05:17,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:17,757 INFO L93 Difference]: Finished difference Result 833 states and 2137 transitions. [2021-05-21 22:05:17,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-21 22:05:17,759 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 41 [2021-05-21 22:05:17,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:17,762 INFO L225 Difference]: With dead ends: 833 [2021-05-21 22:05:17,762 INFO L226 Difference]: Without dead ends: 567 [2021-05-21 22:05:17,762 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 51.9ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-05-21 22:05:17,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2021-05-21 22:05:17,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 535. [2021-05-21 22:05:17,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 533 states have (on average 2.49718574108818) internal successors, (1331), 534 states have internal predecessors, (1331), 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) [2021-05-21 22:05:17,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 1331 transitions. [2021-05-21 22:05:17,776 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 1331 transitions. Word has length 41 [2021-05-21 22:05:17,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:17,776 INFO L482 AbstractCegarLoop]: Abstraction has 535 states and 1331 transitions. [2021-05-21 22:05:17,776 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) [2021-05-21 22:05:17,776 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 1331 transitions. [2021-05-21 22:05:17,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-21 22:05:17,778 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:17,779 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, 1, 1, 1, 1, 1] [2021-05-21 22:05:17,779 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 22:05:17,779 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:17,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:17,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1044271674, now seen corresponding path program 1 times [2021-05-21 22:05:17,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:17,781 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830618815] [2021-05-21 22:05:17,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:17,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:17,876 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:17,876 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830618815] [2021-05-21 22:05:17,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830618815] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:17,879 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:17,879 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 22:05:17,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468987639] [2021-05-21 22:05:17,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 22:05:17,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:17,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 22:05:17,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-05-21 22:05:17,881 INFO L87 Difference]: Start difference. First operand 535 states and 1331 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) [2021-05-21 22:05:17,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:17,928 INFO L93 Difference]: Finished difference Result 337 states and 862 transitions. [2021-05-21 22:05:17,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-21 22:05:17,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 41 [2021-05-21 22:05:17,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:17,930 INFO L225 Difference]: With dead ends: 337 [2021-05-21 22:05:17,930 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 22:05:17,930 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 32.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-05-21 22:05:17,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 22:05:17,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 22:05:17,931 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) [2021-05-21 22:05:17,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 22:05:17,931 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2021-05-21 22:05:17,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:17,931 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 22:05:17,931 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) [2021-05-21 22:05:17,931 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 22:05:17,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 22:05:17,932 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 22:05:17,933 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-21 22:05:17,935 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-21 22:05:17,937 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 22:05:17,937 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 22:05:17,937 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 22:05:17,937 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 22:05:17,937 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 22:05:17,937 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 22:05:17,937 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 22:05:17,937 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-21 22:05:17,942 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 80 transitions, 182 flow [2021-05-21 22:05:17,968 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1244 states, 1240 states have (on average 2.8298387096774196) internal successors, (3509), 1243 states have internal predecessors, (3509), 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) [2021-05-21 22:05:17,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 1244 states, 1240 states have (on average 2.8298387096774196) internal successors, (3509), 1243 states have internal predecessors, (3509), 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) [2021-05-21 22:05:17,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 22:05:17,975 INFO L315 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2021-05-21 22:05:17,975 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 22:05:17,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 10:05:17 BasicIcfg [2021-05-21 22:05:17,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 22:05:17,978 INFO L168 Benchmark]: Toolchain (without parser) took 2308.54 ms. Allocated memory is still 388.0 MB. Free memory was 351.3 MB in the beginning and 269.7 MB in the end (delta: 81.6 MB). Peak memory consumption was 83.2 MB. Max. memory is 16.0 GB. [2021-05-21 22:05:17,978 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 388.0 MB. Free memory was 369.0 MB in the beginning and 368.9 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 22:05:17,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 482.07 ms. Allocated memory is still 388.0 MB. Free memory was 351.1 MB in the beginning and 352.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.0 GB. [2021-05-21 22:05:17,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.82 ms. Allocated memory is still 388.0 MB. Free memory was 352.4 MB in the beginning and 350.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 22:05:17,979 INFO L168 Benchmark]: Boogie Preprocessor took 19.24 ms. Allocated memory is still 388.0 MB. Free memory was 350.5 MB in the beginning and 349.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 22:05:17,980 INFO L168 Benchmark]: RCFGBuilder took 384.86 ms. Allocated memory is still 388.0 MB. Free memory was 349.1 MB in the beginning and 326.0 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-05-21 22:05:17,980 INFO L168 Benchmark]: TraceAbstraction took 1364.02 ms. Allocated memory is still 388.0 MB. Free memory was 325.3 MB in the beginning and 269.7 MB in the end (delta: 55.6 MB). Peak memory consumption was 56.3 MB. Max. memory is 16.0 GB. [2021-05-21 22:05:17,982 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 388.0 MB. Free memory was 369.0 MB in the beginning and 368.9 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 482.07 ms. Allocated memory is still 388.0 MB. Free memory was 351.1 MB in the beginning and 352.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.82 ms. Allocated memory is still 388.0 MB. Free memory was 352.4 MB in the beginning and 350.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.24 ms. Allocated memory is still 388.0 MB. Free memory was 350.5 MB in the beginning and 349.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 384.86 ms. Allocated memory is still 388.0 MB. Free memory was 349.1 MB in the beginning and 326.0 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1364.02 ms. Allocated memory is still 388.0 MB. Free memory was 325.3 MB in the beginning and 269.7 MB in the end (delta: 55.6 MB). Peak memory consumption was 56.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 753]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 725]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 107 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1192.0ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 31.6ms, AutomataDifference: 357.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 85.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 405 SDtfs, 198 SDslu, 496 SDs, 0 SdLazy, 117 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 92.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 94.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1244occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 153.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 89 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.4ms SsaConstructionTime, 105.5ms SatisfiabilityAnalysisTime, 265.8ms InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 1 thread instances CFG has 5 procedures, 107 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 38.1ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 6.1ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 31.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1244occurred 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: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...