/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 11:15:56,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 11:15:56,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 11:15:56,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 11:15:56,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 11:15:56,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 11:15:56,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 11:15:56,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-08-21 11:15:56,783 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 11:15:56,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 11:15:56,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-21 11:15:56,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-21 11:15:56,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 11:15:56,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 11:15:56,787 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 11:15:56,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 11:15:56,787 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 11:15:56,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 11:15:56,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 11:15:56,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 11:15:56,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 11:15:56,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 11:15:56,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 11:15:56,788 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 11:15:56,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 11:15:56,788 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 11:15:56,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 11:15:56,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 11:15:56,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 11:15:56,789 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 11:15:56,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 11:15:56,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 11:15:56,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 11:15:56,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 11:15:56,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 11:15:56,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 11:15:56,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 11:15:56,790 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 11:15:56,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 11:15:56,790 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 11:15:57,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 11:15:57,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 11:15:57,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 11:15:57,054 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-21 11:15:57,054 INFO L275 PluginConnector]: CDTParser initialized [2021-08-21 11:15:57,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2021-08-21 11:15:57,097 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6bb037a9/4c119644857347c4a06bb5521758002f/FLAG8f927094c [2021-08-21 11:15:57,564 INFO L306 CDTParser]: Found 1 translation units. [2021-08-21 11:15:57,565 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2021-08-21 11:15:57,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6bb037a9/4c119644857347c4a06bb5521758002f/FLAG8f927094c [2021-08-21 11:15:57,846 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6bb037a9/4c119644857347c4a06bb5521758002f [2021-08-21 11:15:57,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 11:15:57,848 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-21 11:15:57,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-21 11:15:57,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-21 11:15:57,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-21 11:15:57,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:15:57" (1/1) ... [2021-08-21 11:15:57,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5214c8e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:57, skipping insertion in model container [2021-08-21 11:15:57,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:15:57" (1/1) ... [2021-08-21 11:15:57,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-21 11:15:57,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-21 11:15:58,050 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-21 11:15:58,189 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[31505,31518] [2021-08-21 11:15:58,196 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[32915,32928] [2021-08-21 11:15:58,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 11:15:58,211 INFO L203 MainTranslator]: Completed pre-run [2021-08-21 11:15:58,227 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-21 11:15:58,243 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[31505,31518] [2021-08-21 11:15:58,245 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[32915,32928] [2021-08-21 11:15:58,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 11:15:58,282 INFO L208 MainTranslator]: Completed translation [2021-08-21 11:15:58,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:58 WrapperNode [2021-08-21 11:15:58,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-21 11:15:58,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 11:15:58,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 11:15:58,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 11:15:58,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:58" (1/1) ... [2021-08-21 11:15:58,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:58" (1/1) ... [2021-08-21 11:15:58,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 11:15:58,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 11:15:58,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 11:15:58,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 11:15:58,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:58" (1/1) ... [2021-08-21 11:15:58,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:58" (1/1) ... [2021-08-21 11:15:58,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:58" (1/1) ... [2021-08-21 11:15:58,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:58" (1/1) ... [2021-08-21 11:15:58,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:58" (1/1) ... [2021-08-21 11:15:58,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:58" (1/1) ... [2021-08-21 11:15:58,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:58" (1/1) ... [2021-08-21 11:15:58,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 11:15:58,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 11:15:58,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 11:15:58,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 11:15:58,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:58" (1/1) ... [2021-08-21 11:15:58,366 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 11:15:58,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 11:15:58,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 11:15:58,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 11:15:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-21 11:15:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-08-21 11:15:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-08-21 11:15:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-08-21 11:15:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-08-21 11:15:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-21 11:15:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-21 11:15:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-21 11:15:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-21 11:15:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-21 11:15:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-21 11:15:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 11:15:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 11:15:58,430 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 11:15:58,771 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 11:15:58,772 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-21 11:15:58,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:15:58 BoogieIcfgContainer [2021-08-21 11:15:58,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 11:15:58,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 11:15:58,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 11:15:58,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 11:15:58,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:15:57" (1/3) ... [2021-08-21 11:15:58,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de03049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:15:58, skipping insertion in model container [2021-08-21 11:15:58,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:58" (2/3) ... [2021-08-21 11:15:58,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de03049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:15:58, skipping insertion in model container [2021-08-21 11:15:58,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:15:58" (3/3) ... [2021-08-21 11:15:58,785 INFO L111 eAbstractionObserver]: Analyzing ICFG szymanski.i [2021-08-21 11:15:58,788 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 11:15:58,788 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 11:15:58,788 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-21 11:15:58,789 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 11:15:58,808 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,808 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,808 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,809 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,809 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,809 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,809 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,809 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,809 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,809 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,809 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,810 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,810 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,810 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,810 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,810 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,810 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,810 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,810 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,811 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,811 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,811 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,811 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,811 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,811 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,811 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,811 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,812 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,812 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,812 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,812 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,812 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,812 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,812 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,812 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,813 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,813 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,813 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,813 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,813 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,813 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,813 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,813 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,814 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,814 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,814 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,814 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,814 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,814 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,814 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,815 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,815 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,815 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,815 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,815 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,815 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,815 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,816 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,816 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,816 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,816 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,816 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,816 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,816 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,816 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,817 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,817 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,817 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,817 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,817 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,817 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,817 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,817 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,817 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,818 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,818 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,818 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,818 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,818 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,818 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,818 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,818 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,819 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,819 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,819 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,819 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,819 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,819 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,820 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,820 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,820 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,820 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,820 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,820 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,820 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,820 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,821 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,821 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,821 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,821 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,823 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,823 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,823 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,823 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,823 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,827 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,827 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,827 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,827 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,827 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:58,832 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-08-21 11:15:58,858 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 11:15:58,862 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-21 11:15:58,862 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-21 11:15:58,869 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 113 transitions, 242 flow [2021-08-21 11:15:58,938 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2960 states, 2957 states have (on average 3.3107879607710515) internal successors, (9790), 2959 states have internal predecessors, (9790), 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) [2021-08-21 11:15:58,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 2960 states, 2957 states have (on average 3.3107879607710515) internal successors, (9790), 2959 states have internal predecessors, (9790), 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) [2021-08-21 11:15:58,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-21 11:15:58,957 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:15:58,957 INFO L512 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] [2021-08-21 11:15:58,958 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-08-21 11:15:58,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:15:58,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1899804265, now seen corresponding path program 1 times [2021-08-21 11:15:58,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:15:58,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608766524] [2021-08-21 11:15:58,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:15:58,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:15:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:15:59,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:15:59,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:15:59,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608766524] [2021-08-21 11:15:59,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608766524] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:15:59,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:15:59,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-21 11:15:59,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206072704] [2021-08-21 11:15:59,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-21 11:15:59,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:15:59,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-21 11:15:59,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-21 11:15:59,100 INFO L87 Difference]: Start difference. First operand has 2960 states, 2957 states have (on average 3.3107879607710515) internal successors, (9790), 2959 states have internal predecessors, (9790), 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 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2021-08-21 11:15:59,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:15:59,152 INFO L93 Difference]: Finished difference Result 2960 states and 8783 transitions. [2021-08-21 11:15:59,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-21 11:15:59,153 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 31 [2021-08-21 11:15:59,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:15:59,182 INFO L225 Difference]: With dead ends: 2960 [2021-08-21 11:15:59,182 INFO L226 Difference]: Without dead ends: 2960 [2021-08-21 11:15:59,183 INFO L781 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 [2021-08-21 11:15:59,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2021-08-21 11:15:59,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2960. [2021-08-21 11:15:59,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2960 states, 2957 states have (on average 2.9702401082177885) internal successors, (8783), 2959 states have internal predecessors, (8783), 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) [2021-08-21 11:15:59,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2960 states to 2960 states and 8783 transitions. [2021-08-21 11:15:59,318 INFO L78 Accepts]: Start accepts. Automaton has 2960 states and 8783 transitions. Word has length 31 [2021-08-21 11:15:59,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:15:59,319 INFO L470 AbstractCegarLoop]: Abstraction has 2960 states and 8783 transitions. [2021-08-21 11:15:59,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2021-08-21 11:15:59,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2960 states and 8783 transitions. [2021-08-21 11:15:59,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-21 11:15:59,321 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:15:59,321 INFO L512 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] [2021-08-21 11:15:59,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 11:15:59,321 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-08-21 11:15:59,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:15:59,322 INFO L82 PathProgramCache]: Analyzing trace with hash -2096287979, now seen corresponding path program 1 times [2021-08-21 11:15:59,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:15:59,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035327599] [2021-08-21 11:15:59,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:15:59,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:15:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:15:59,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:15:59,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:15:59,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035327599] [2021-08-21 11:15:59,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035327599] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:15:59,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:15:59,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 11:15:59,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325102234] [2021-08-21 11:15:59,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 11:15:59,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:15:59,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 11:15:59,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 11:15:59,400 INFO L87 Difference]: Start difference. First operand 2960 states and 8783 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-08-21 11:15:59,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:15:59,510 INFO L93 Difference]: Finished difference Result 2945 states and 8649 transitions. [2021-08-21 11:15:59,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 11:15:59,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-08-21 11:15:59,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:15:59,520 INFO L225 Difference]: With dead ends: 2945 [2021-08-21 11:15:59,521 INFO L226 Difference]: Without dead ends: 2441 [2021-08-21 11:15:59,521 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 11:15:59,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2021-08-21 11:15:59,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 2348. [2021-08-21 11:15:59,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2348 states, 2345 states have (on average 2.9394456289978677) internal successors, (6893), 2347 states have internal predecessors, (6893), 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) [2021-08-21 11:15:59,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 6893 transitions. [2021-08-21 11:15:59,592 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 6893 transitions. Word has length 31 [2021-08-21 11:15:59,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:15:59,593 INFO L470 AbstractCegarLoop]: Abstraction has 2348 states and 6893 transitions. [2021-08-21 11:15:59,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-08-21 11:15:59,593 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 6893 transitions. [2021-08-21 11:15:59,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-08-21 11:15:59,596 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:15:59,596 INFO L512 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] [2021-08-21 11:15:59,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 11:15:59,596 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-08-21 11:15:59,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:15:59,597 INFO L82 PathProgramCache]: Analyzing trace with hash -426793321, now seen corresponding path program 1 times [2021-08-21 11:15:59,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:15:59,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887978026] [2021-08-21 11:15:59,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:15:59,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:15:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:15:59,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:15:59,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:15:59,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887978026] [2021-08-21 11:15:59,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887978026] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:15:59,644 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:15:59,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 11:15:59,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996360585] [2021-08-21 11:15:59,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 11:15:59,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:15:59,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 11:15:59,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 11:15:59,645 INFO L87 Difference]: Start difference. First operand 2348 states and 6893 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-08-21 11:15:59,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:15:59,703 INFO L93 Difference]: Finished difference Result 2219 states and 6469 transitions. [2021-08-21 11:15:59,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 11:15:59,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2021-08-21 11:15:59,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:15:59,710 INFO L225 Difference]: With dead ends: 2219 [2021-08-21 11:15:59,710 INFO L226 Difference]: Without dead ends: 1619 [2021-08-21 11:15:59,710 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 11:15:59,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2021-08-21 11:15:59,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1619. [2021-08-21 11:15:59,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1617 states have (on average 2.921459492888064) internal successors, (4724), 1618 states have internal predecessors, (4724), 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) [2021-08-21 11:15:59,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 4724 transitions. [2021-08-21 11:15:59,760 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 4724 transitions. Word has length 37 [2021-08-21 11:15:59,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:15:59,761 INFO L470 AbstractCegarLoop]: Abstraction has 1619 states and 4724 transitions. [2021-08-21 11:15:59,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-08-21 11:15:59,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 4724 transitions. [2021-08-21 11:15:59,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-08-21 11:15:59,766 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:15:59,766 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:15:59,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 11:15:59,767 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-08-21 11:15:59,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:15:59,767 INFO L82 PathProgramCache]: Analyzing trace with hash -702329611, now seen corresponding path program 1 times [2021-08-21 11:15:59,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:15:59,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034016721] [2021-08-21 11:15:59,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:15:59,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:15:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:15:59,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:15:59,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:15:59,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034016721] [2021-08-21 11:15:59,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034016721] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:15:59,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:15:59,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-21 11:15:59,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701929795] [2021-08-21 11:15:59,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-21 11:15:59,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:15:59,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-21 11:15:59,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-21 11:15:59,840 INFO L87 Difference]: Start difference. First operand 1619 states and 4724 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-08-21 11:15:59,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:15:59,951 INFO L93 Difference]: Finished difference Result 1883 states and 5457 transitions. [2021-08-21 11:15:59,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 11:15:59,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 48 [2021-08-21 11:15:59,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:15:59,957 INFO L225 Difference]: With dead ends: 1883 [2021-08-21 11:15:59,957 INFO L226 Difference]: Without dead ends: 1423 [2021-08-21 11:15:59,958 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-21 11:15:59,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2021-08-21 11:15:59,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1307. [2021-08-21 11:15:59,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 1305 states have (on average 2.8490421455938697) internal successors, (3718), 1306 states have internal predecessors, (3718), 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) [2021-08-21 11:15:59,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 3718 transitions. [2021-08-21 11:15:59,980 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 3718 transitions. Word has length 48 [2021-08-21 11:15:59,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:15:59,982 INFO L470 AbstractCegarLoop]: Abstraction has 1307 states and 3718 transitions. [2021-08-21 11:15:59,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-08-21 11:15:59,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 3718 transitions. [2021-08-21 11:15:59,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-08-21 11:15:59,984 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:15:59,984 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:15:59,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 11:15:59,984 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-08-21 11:15:59,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:15:59,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1584697377, now seen corresponding path program 1 times [2021-08-21 11:15:59,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:15:59,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629814815] [2021-08-21 11:15:59,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:15:59,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:16:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:16:00,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:16:00,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:16:00,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629814815] [2021-08-21 11:16:00,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629814815] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:16:00,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:16:00,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-21 11:16:00,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046673127] [2021-08-21 11:16:00,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-21 11:16:00,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:16:00,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-21 11:16:00,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-21 11:16:00,045 INFO L87 Difference]: Start difference. First operand 1307 states and 3718 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-08-21 11:16:00,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:16:00,109 INFO L93 Difference]: Finished difference Result 1715 states and 4811 transitions. [2021-08-21 11:16:00,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 11:16:00,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 48 [2021-08-21 11:16:00,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:16:00,116 INFO L225 Difference]: With dead ends: 1715 [2021-08-21 11:16:00,116 INFO L226 Difference]: Without dead ends: 1603 [2021-08-21 11:16:00,116 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-21 11:16:00,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2021-08-21 11:16:00,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1395. [2021-08-21 11:16:00,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 1393 states have (on average 2.799712849964106) internal successors, (3900), 1394 states have internal predecessors, (3900), 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) [2021-08-21 11:16:00,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 3900 transitions. [2021-08-21 11:16:00,143 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 3900 transitions. Word has length 48 [2021-08-21 11:16:00,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:16:00,144 INFO L470 AbstractCegarLoop]: Abstraction has 1395 states and 3900 transitions. [2021-08-21 11:16:00,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-08-21 11:16:00,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 3900 transitions. [2021-08-21 11:16:00,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-08-21 11:16:00,146 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:16:00,146 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:16:00,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 11:16:00,147 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-08-21 11:16:00,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:16:00,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1028618613, now seen corresponding path program 2 times [2021-08-21 11:16:00,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:16:00,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26618419] [2021-08-21 11:16:00,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:16:00,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:16:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:16:00,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:16:00,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:16:00,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26618419] [2021-08-21 11:16:00,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26618419] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:16:00,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:16:00,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-21 11:16:00,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404480303] [2021-08-21 11:16:00,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-21 11:16:00,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:16:00,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-21 11:16:00,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-21 11:16:00,179 INFO L87 Difference]: Start difference. First operand 1395 states and 3900 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-08-21 11:16:00,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:16:00,248 INFO L93 Difference]: Finished difference Result 1971 states and 5448 transitions. [2021-08-21 11:16:00,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 11:16:00,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 48 [2021-08-21 11:16:00,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:16:00,262 INFO L225 Difference]: With dead ends: 1971 [2021-08-21 11:16:00,262 INFO L226 Difference]: Without dead ends: 1971 [2021-08-21 11:16:00,262 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-21 11:16:00,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2021-08-21 11:16:00,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1567. [2021-08-21 11:16:00,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1565 states have (on average 2.8095846645367413) internal successors, (4397), 1566 states have internal predecessors, (4397), 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) [2021-08-21 11:16:00,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 4397 transitions. [2021-08-21 11:16:00,295 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 4397 transitions. Word has length 48 [2021-08-21 11:16:00,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:16:00,296 INFO L470 AbstractCegarLoop]: Abstraction has 1567 states and 4397 transitions. [2021-08-21 11:16:00,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-08-21 11:16:00,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 4397 transitions. [2021-08-21 11:16:00,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-08-21 11:16:00,301 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:16:00,301 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:16:00,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 11:16:00,302 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-08-21 11:16:00,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:16:00,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1472283609, now seen corresponding path program 3 times [2021-08-21 11:16:00,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:16:00,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130820530] [2021-08-21 11:16:00,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:16:00,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:16:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:16:00,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:16:00,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:16:00,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130820530] [2021-08-21 11:16:00,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130820530] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:16:00,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:16:00,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-21 11:16:00,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888261826] [2021-08-21 11:16:00,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-21 11:16:00,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:16:00,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-21 11:16:00,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-21 11:16:00,363 INFO L87 Difference]: Start difference. First operand 1567 states and 4397 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-08-21 11:16:00,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:16:00,410 INFO L93 Difference]: Finished difference Result 1374 states and 3884 transitions. [2021-08-21 11:16:00,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 11:16:00,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 48 [2021-08-21 11:16:00,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:16:00,412 INFO L225 Difference]: With dead ends: 1374 [2021-08-21 11:16:00,412 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 11:16:00,412 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-21 11:16:00,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 11:16:00,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 11:16:00,412 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) [2021-08-21 11:16:00,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 11:16:00,413 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2021-08-21 11:16:00,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:16:00,413 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 11:16:00,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-08-21 11:16:00,413 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 11:16:00,413 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 11:16:00,415 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:16:00,415 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:16:00,415 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 11:16:00,415 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 11:16:00,415 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:16:00,415 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:16:00,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-21 11:16:00,421 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 11:16:00,421 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 11:16:00,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:16:00 BasicIcfg [2021-08-21 11:16:00,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 11:16:00,424 INFO L168 Benchmark]: Toolchain (without parser) took 2574.76 ms. Allocated memory was 233.8 MB in the beginning and 329.3 MB in the end (delta: 95.4 MB). Free memory was 197.2 MB in the beginning and 220.4 MB in the end (delta: -23.2 MB). Peak memory consumption was 72.7 MB. Max. memory is 8.0 GB. [2021-08-21 11:16:00,424 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 233.8 MB. Free memory is still 215.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 11:16:00,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.97 ms. Allocated memory is still 233.8 MB. Free memory was 197.0 MB in the beginning and 206.1 MB in the end (delta: -9.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 8.0 GB. [2021-08-21 11:16:00,427 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.67 ms. Allocated memory is still 233.8 MB. Free memory was 205.6 MB in the beginning and 204.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 11:16:00,427 INFO L168 Benchmark]: Boogie Preprocessor took 27.83 ms. Allocated memory is still 233.8 MB. Free memory was 204.0 MB in the beginning and 202.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 11:16:00,427 INFO L168 Benchmark]: RCFGBuilder took 418.20 ms. Allocated memory is still 233.8 MB. Free memory was 202.5 MB in the beginning and 175.7 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2021-08-21 11:16:00,428 INFO L168 Benchmark]: TraceAbstraction took 1647.76 ms. Allocated memory was 233.8 MB in the beginning and 329.3 MB in the end (delta: 95.4 MB). Free memory was 175.2 MB in the beginning and 220.4 MB in the end (delta: -45.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 8.0 GB. [2021-08-21 11:16:00,429 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 233.8 MB. Free memory is still 215.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 432.97 ms. Allocated memory is still 233.8 MB. Free memory was 197.0 MB in the beginning and 206.1 MB in the end (delta: -9.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 43.67 ms. Allocated memory is still 233.8 MB. Free memory was 205.6 MB in the beginning and 204.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.83 ms. Allocated memory is still 233.8 MB. Free memory was 204.0 MB in the beginning and 202.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 418.20 ms. Allocated memory is still 233.8 MB. Free memory was 202.5 MB in the beginning and 175.7 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1647.76 ms. Allocated memory was 233.8 MB in the beginning and 329.3 MB in the end (delta: 95.4 MB). Free memory was 175.2 MB in the beginning and 220.4 MB in the end (delta: -45.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 802]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 745]: 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, 150 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1561.8ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 35.8ms, AutomataDifference: 615.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 76.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 819 SDtfs, 448 SDslu, 722 SDs, 0 SdLazy, 221 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 201.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2960occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 330.0ms AutomataMinimizationTime, 7 MinimizatonAttempts, 821 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.1ms SsaConstructionTime, 92.5ms SatisfiabilityAnalysisTime, 233.4ms InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 344 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 11:16:00,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...