/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 15:04:52,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 15:04:52,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 15:04:52,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-10 15:04:52,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-10 15:04:52,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-10 15:04:52,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-10 15:04:52,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-10 15:04:52,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-10 15:04:52,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-10 15:04:52,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-10 15:04:52,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-10 15:04:52,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-10 15:04:52,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-10 15:04:52,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-10 15:04:52,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-10 15:04:52,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-10 15:04:52,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-10 15:04:52,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-10 15:04:52,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-10 15:04:52,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-10 15:04:52,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-10 15:04:52,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-10 15:04:52,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-10 15:04:52,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-10 15:04:52,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 15:04:52,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 15:04:52,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 15:04:52,937 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 [2021-03-10 15:04:52,967 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 15:04:52,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 15:04:52,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 15:04:52,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 15:04:52,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 15:04:52,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 15:04:52,971 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 15:04:52,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 15:04:52,971 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 15:04:52,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 15:04:52,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 15:04:52,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 15:04:52,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 15:04:52,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 15:04:52,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 15:04:52,973 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 15:04:52,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 15:04:52,973 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 15:04:52,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 15:04:52,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 15:04:52,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 15:04:52,974 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 15:04:52,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 15:04:52,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 15:04:52,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 15:04:52,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 15:04:52,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 15:04:52,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 15:04:52,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 15:04:52,975 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 15:04:52,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 15:04:52,975 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 15:04:53,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 15:04:53,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 15:04:53,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 15:04:53,298 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 15:04:53,300 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 15:04:53,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2021-03-10 15:04:53,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4afea34b6/b64fc509c7b64d6993d4c56ef98cc1b8/FLAG9b8ec5148 [2021-03-10 15:04:53,890 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 15:04:53,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2021-03-10 15:04:53,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4afea34b6/b64fc509c7b64d6993d4c56ef98cc1b8/FLAG9b8ec5148 [2021-03-10 15:04:54,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4afea34b6/b64fc509c7b64d6993d4c56ef98cc1b8 [2021-03-10 15:04:54,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 15:04:54,351 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 15:04:54,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 15:04:54,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 15:04:54,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 15:04:54,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 03:04:54" (1/1) ... [2021-03-10 15:04:54,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b7b6e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:04:54, skipping insertion in model container [2021-03-10 15:04:54,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 03:04:54" (1/1) ... [2021-03-10 15:04:54,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 15:04:54,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 15:04:54,525 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-10 15:04:54,668 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[30997,31010] [2021-03-10 15:04:54,673 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[31682,31695] [2021-03-10 15:04:54,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 15:04:54,681 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 15:04:54,691 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-10 15:04:54,714 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[30997,31010] [2021-03-10 15:04:54,716 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[31682,31695] [2021-03-10 15:04:54,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 15:04:54,776 INFO L208 MainTranslator]: Completed translation [2021-03-10 15:04:54,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:04:54 WrapperNode [2021-03-10 15:04:54,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 15:04:54,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 15:04:54,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 15:04:54,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 15:04:54,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:04:54" (1/1) ... [2021-03-10 15:04:54,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:04:54" (1/1) ... [2021-03-10 15:04:54,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 15:04:54,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 15:04:54,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 15:04:54,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 15:04:54,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:04:54" (1/1) ... [2021-03-10 15:04:54,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:04:54" (1/1) ... [2021-03-10 15:04:54,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:04:54" (1/1) ... [2021-03-10 15:04:54,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:04:54" (1/1) ... [2021-03-10 15:04:54,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:04:54" (1/1) ... [2021-03-10 15:04:54,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:04:54" (1/1) ... [2021-03-10 15:04:54,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:04:54" (1/1) ... [2021-03-10 15:04:54,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 15:04:54,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 15:04:54,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 15:04:54,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 15:04:54,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:04:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 15:04:54,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-10 15:04:54,902 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-03-10 15:04:54,902 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-03-10 15:04:54,902 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-03-10 15:04:54,902 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-03-10 15:04:54,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 15:04:54,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 15:04:54,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 15:04:54,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 15:04:54,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 15:04:54,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 15:04:54,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 15:04:54,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 15:04:54,904 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 15:04:55,244 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 15:04:55,245 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-03-10 15:04:55,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 03:04:55 BoogieIcfgContainer [2021-03-10 15:04:55,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 15:04:55,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 15:04:55,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 15:04:55,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 15:04:55,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 03:04:54" (1/3) ... [2021-03-10 15:04:55,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e209e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 03:04:55, skipping insertion in model container [2021-03-10 15:04:55,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:04:54" (2/3) ... [2021-03-10 15:04:55,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e209e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 03:04:55, skipping insertion in model container [2021-03-10 15:04:55,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 03:04:55" (3/3) ... [2021-03-10 15:04:55,252 INFO L111 eAbstractionObserver]: Analyzing ICFG peterson.i [2021-03-10 15:04:55,258 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 15:04:55,258 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 15:04:55,261 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-10 15:04:55,261 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 15:04:55,300 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,300 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,300 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,300 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,301 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,301 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,301 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,301 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,302 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,302 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,307 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,307 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,307 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,307 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,308 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,308 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,308 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,308 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,309 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,309 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,309 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,309 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,310 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,310 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,310 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,310 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,310 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,311 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,312 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,312 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,313 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,313 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,313 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,313 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,313 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,313 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,313 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,314 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,314 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,314 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,314 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,316 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,316 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,317 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,317 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,320 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,320 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,320 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,321 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,321 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,321 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,321 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,321 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,323 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,323 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,323 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,323 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,324 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,324 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,337 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,337 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,337 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,337 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,337 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,338 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:04:55,346 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-10 15:04:55,361 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-10 15:04:55,386 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 15:04:55,387 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 15:04:55,387 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 15:04:55,387 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 15:04:55,387 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 15:04:55,387 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 15:04:55,387 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 15:04:55,387 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 15:04:55,402 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 74 transitions, 170 flow [2021-03-10 15:04:55,466 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 938 states, 934 states have (on average 2.7548179871520344) internal successors, (2573), 937 states have internal predecessors, (2573), 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) [2021-03-10 15:04:55,470 INFO L276 IsEmpty]: Start isEmpty. Operand has 938 states, 934 states have (on average 2.7548179871520344) internal successors, (2573), 937 states have internal predecessors, (2573), 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) [2021-03-10 15:04:55,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-03-10 15:04:55,488 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:04:55,488 INFO L519 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] [2021-03-10 15:04:55,489 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 15:04:55,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:04:55,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1057410247, now seen corresponding path program 1 times [2021-03-10 15:04:55,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:04:55,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684111900] [2021-03-10 15:04:55,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:04:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:04:55,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:04:55,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684111900] [2021-03-10 15:04:55,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:04:55,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-10 15:04:55,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729165269] [2021-03-10 15:04:55,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-10 15:04:55,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:04:55,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-10 15:04:55,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-10 15:04:55,645 INFO L87 Difference]: Start difference. First operand has 938 states, 934 states have (on average 2.7548179871520344) internal successors, (2573), 937 states have internal predecessors, (2573), 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 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-03-10 15:04:55,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:04:55,674 INFO L93 Difference]: Finished difference Result 938 states and 2363 transitions. [2021-03-10 15:04:55,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-10 15:04:55,675 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 26 [2021-03-10 15:04:55,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:04:55,692 INFO L225 Difference]: With dead ends: 938 [2021-03-10 15:04:55,692 INFO L226 Difference]: Without dead ends: 857 [2021-03-10 15:04:55,693 INFO L775 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 [2021-03-10 15:04:55,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2021-03-10 15:04:55,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 857. [2021-03-10 15:04:55,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 854 states have (on average 2.5491803278688523) internal successors, (2177), 856 states have internal predecessors, (2177), 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) [2021-03-10 15:04:55,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 2177 transitions. [2021-03-10 15:04:55,773 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 2177 transitions. Word has length 26 [2021-03-10 15:04:55,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:04:55,773 INFO L480 AbstractCegarLoop]: Abstraction has 857 states and 2177 transitions. [2021-03-10 15:04:55,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-03-10 15:04:55,774 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 2177 transitions. [2021-03-10 15:04:55,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-03-10 15:04:55,775 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:04:55,775 INFO L519 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] [2021-03-10 15:04:55,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 15:04:55,776 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 15:04:55,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:04:55,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1057440038, now seen corresponding path program 1 times [2021-03-10 15:04:55,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:04:55,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021303074] [2021-03-10 15:04:55,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:04:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:04:55,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:04:55,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021303074] [2021-03-10 15:04:55,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:04:55,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 15:04:55,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175107790] [2021-03-10 15:04:55,838 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 15:04:55,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:04:55,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 15:04:55,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:04:55,839 INFO L87 Difference]: Start difference. First operand 857 states and 2177 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-03-10 15:04:55,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:04:55,862 INFO L93 Difference]: Finished difference Result 866 states and 2146 transitions. [2021-03-10 15:04:55,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 15:04:55,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2021-03-10 15:04:55,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:04:55,867 INFO L225 Difference]: With dead ends: 866 [2021-03-10 15:04:55,867 INFO L226 Difference]: Without dead ends: 716 [2021-03-10 15:04:55,867 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:04:55,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-03-10 15:04:55,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 671. [2021-03-10 15:04:55,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 668 states have (on average 2.5134730538922154) internal successors, (1679), 670 states have internal predecessors, (1679), 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) [2021-03-10 15:04:55,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1679 transitions. [2021-03-10 15:04:55,928 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1679 transitions. Word has length 26 [2021-03-10 15:04:55,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:04:55,928 INFO L480 AbstractCegarLoop]: Abstraction has 671 states and 1679 transitions. [2021-03-10 15:04:55,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-03-10 15:04:55,929 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1679 transitions. [2021-03-10 15:04:55,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-03-10 15:04:55,934 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:04:55,934 INFO L519 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] [2021-03-10 15:04:55,934 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 15:04:55,934 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 15:04:55,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:04:55,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1056945993, now seen corresponding path program 1 times [2021-03-10 15:04:55,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:04:55,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98065726] [2021-03-10 15:04:55,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:04:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:04:55,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:04:55,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98065726] [2021-03-10 15:04:55,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:04:55,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 15:04:55,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349426940] [2021-03-10 15:04:55,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 15:04:55,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:04:55,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 15:04:55,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:04:55,977 INFO L87 Difference]: Start difference. First operand 671 states and 1679 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-03-10 15:04:55,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:04:55,992 INFO L93 Difference]: Finished difference Result 614 states and 1498 transitions. [2021-03-10 15:04:55,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 15:04:55,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2021-03-10 15:04:55,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:04:55,995 INFO L225 Difference]: With dead ends: 614 [2021-03-10 15:04:55,995 INFO L226 Difference]: Without dead ends: 452 [2021-03-10 15:04:55,995 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:04:55,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-03-10 15:04:56,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2021-03-10 15:04:56,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 450 states have (on average 2.437777777777778) internal successors, (1097), 451 states have internal predecessors, (1097), 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) [2021-03-10 15:04:56,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 1097 transitions. [2021-03-10 15:04:56,006 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 1097 transitions. Word has length 29 [2021-03-10 15:04:56,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:04:56,006 INFO L480 AbstractCegarLoop]: Abstraction has 452 states and 1097 transitions. [2021-03-10 15:04:56,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-03-10 15:04:56,007 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 1097 transitions. [2021-03-10 15:04:56,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 15:04:56,008 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:04:56,008 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 15:04:56,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 15:04:56,008 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 15:04:56,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:04:56,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1468473485, now seen corresponding path program 1 times [2021-03-10 15:04:56,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:04:56,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151243533] [2021-03-10 15:04:56,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:04:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:04:56,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:04:56,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151243533] [2021-03-10 15:04:56,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:04:56,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 15:04:56,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836079734] [2021-03-10 15:04:56,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 15:04:56,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:04:56,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 15:04:56,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-10 15:04:56,092 INFO L87 Difference]: Start difference. First operand 452 states and 1097 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:04:56,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:04:56,183 INFO L93 Difference]: Finished difference Result 617 states and 1537 transitions. [2021-03-10 15:04:56,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-10 15:04:56,183 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 15:04:56,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:04:56,185 INFO L225 Difference]: With dead ends: 617 [2021-03-10 15:04:56,185 INFO L226 Difference]: Without dead ends: 449 [2021-03-10 15:04:56,186 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 46.1ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-03-10 15:04:56,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2021-03-10 15:04:56,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 425. [2021-03-10 15:04:56,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 423 states have (on average 2.4018912529550827) internal successors, (1016), 424 states have internal predecessors, (1016), 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) [2021-03-10 15:04:56,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 1016 transitions. [2021-03-10 15:04:56,196 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 1016 transitions. Word has length 36 [2021-03-10 15:04:56,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:04:56,197 INFO L480 AbstractCegarLoop]: Abstraction has 425 states and 1016 transitions. [2021-03-10 15:04:56,197 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:04:56,197 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 1016 transitions. [2021-03-10 15:04:56,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 15:04:56,198 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:04:56,198 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 15:04:56,198 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 15:04:56,198 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 15:04:56,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:04:56,199 INFO L82 PathProgramCache]: Analyzing trace with hash -437786765, now seen corresponding path program 2 times [2021-03-10 15:04:56,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:04:56,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799718317] [2021-03-10 15:04:56,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:04:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:04:56,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:04:56,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799718317] [2021-03-10 15:04:56,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:04:56,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 15:04:56,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978432376] [2021-03-10 15:04:56,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 15:04:56,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:04:56,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 15:04:56,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-10 15:04:56,258 INFO L87 Difference]: Start difference. First operand 425 states and 1016 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:04:56,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:04:56,302 INFO L93 Difference]: Finished difference Result 272 states and 668 transitions. [2021-03-10 15:04:56,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-10 15:04:56,303 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 15:04:56,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:04:56,303 INFO L225 Difference]: With dead ends: 272 [2021-03-10 15:04:56,303 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 15:04:56,303 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 32.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-10 15:04:56,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 15:04:56,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 15:04:56,304 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) [2021-03-10 15:04:56,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 15:04:56,304 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2021-03-10 15:04:56,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:04:56,304 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 15:04:56,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:04:56,305 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 15:04:56,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 15:04:56,305 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 15:04:56,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 03:04:56 BasicIcfg [2021-03-10 15:04:56,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 15:04:56,310 INFO L168 Benchmark]: Toolchain (without parser) took 1961.99 ms. Allocated memory was 255.9 MB in the beginning and 362.8 MB in the end (delta: 107.0 MB). Free memory was 233.8 MB in the beginning and 270.3 MB in the end (delta: -36.5 MB). Peak memory consumption was 71.5 MB. Max. memory is 16.0 GB. [2021-03-10 15:04:56,310 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 15:04:56,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.07 ms. Allocated memory was 255.9 MB in the beginning and 362.8 MB in the end (delta: 107.0 MB). Free memory was 233.2 MB in the beginning and 326.0 MB in the end (delta: -92.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-10 15:04:56,311 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.69 ms. Allocated memory is still 362.8 MB. Free memory was 326.0 MB in the beginning and 324.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 15:04:56,311 INFO L168 Benchmark]: Boogie Preprocessor took 17.35 ms. Allocated memory is still 362.8 MB. Free memory was 324.3 MB in the beginning and 322.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 15:04:56,312 INFO L168 Benchmark]: RCFGBuilder took 417.20 ms. Allocated memory is still 362.8 MB. Free memory was 322.9 MB in the beginning and 341.2 MB in the end (delta: -18.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.0 GB. [2021-03-10 15:04:56,312 INFO L168 Benchmark]: TraceAbstraction took 1061.55 ms. Allocated memory is still 362.8 MB. Free memory was 341.2 MB in the beginning and 270.3 MB in the end (delta: 70.9 MB). Peak memory consumption was 70.7 MB. Max. memory is 16.0 GB. [2021-03-10 15:04:56,314 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 424.07 ms. Allocated memory was 255.9 MB in the beginning and 362.8 MB in the end (delta: 107.0 MB). Free memory was 233.2 MB in the beginning and 326.0 MB in the end (delta: -92.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.69 ms. Allocated memory is still 362.8 MB. Free memory was 326.0 MB in the beginning and 324.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.35 ms. Allocated memory is still 362.8 MB. Free memory was 324.3 MB in the beginning and 322.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 417.20 ms. Allocated memory is still 362.8 MB. Free memory was 322.9 MB in the beginning and 341.2 MB in the end (delta: -18.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1061.55 ms. Allocated memory is still 362.8 MB. Free memory was 341.2 MB in the beginning and 270.3 MB in the end (delta: 70.9 MB). Peak memory consumption was 70.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 753]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 725]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 67 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 920.9ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 29.7ms, AutomataDifference: 248.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 79.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 365 SDtfs, 191 SDslu, 430 SDs, 0 SdLazy, 117 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 76.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 87.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=938occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 151.4ms AutomataMinimizationTime, 5 MinimizatonAttempts, 69 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.1ms SsaConstructionTime, 57.0ms SatisfiabilityAnalysisTime, 223.1ms InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...