/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-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 12:30:52,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 12:30:52,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 12:30:52,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 12:30:52,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 12:30:52,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 12:30:52,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 12:30:52,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 12:30:52,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 12:30:52,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 12:30:52,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 12:30:52,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 12:30:52,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 12:30:52,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 12:30:52,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 12:30:52,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 12:30:52,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 12:30:52,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 12:30:52,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 12:30:52,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 12:30:52,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 12:30:52,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 12:30:52,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 12:30:52,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 12:30:52,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-10 12:30:52,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 12:30:52,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 12:30:52,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 12:30:52,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 12:30:52,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 12:30:52,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 12:30:52,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 12:30:52,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 12:30:52,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 12:30:52,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 12:30:52,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 12:30:53,000 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-PN-NoLbe.epf [2021-06-10 12:30:53,032 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 12:30:53,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 12:30:53,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 12:30:53,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 12:30:53,034 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 12:30:53,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 12:30:53,034 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 12:30:53,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 12:30:53,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 12:30:53,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 12:30:53,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 12:30:53,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 12:30:53,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 12:30:53,036 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 12:30:53,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 12:30:53,036 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 12:30:53,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 12:30:53,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 12:30:53,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 12:30:53,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 12:30:53,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 12:30:53,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 12:30:53,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 12:30:53,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 12:30:53,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 12:30:53,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 12:30:53,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 12:30:53,037 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-10 12:30:53,037 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 12:30:53,037 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 12:30:53,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 12:30:53,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 12:30:53,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 12:30:53,310 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 12:30:53,311 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 12:30:53,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2021-06-10 12:30:53,358 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f519590e/0cffc8be415145a1bc7b0b985e8fa165/FLAGdef6734ee [2021-06-10 12:30:53,785 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 12:30:53,786 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2021-06-10 12:30:53,805 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f519590e/0cffc8be415145a1bc7b0b985e8fa165/FLAGdef6734ee [2021-06-10 12:30:53,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f519590e/0cffc8be415145a1bc7b0b985e8fa165 [2021-06-10 12:30:53,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 12:30:53,817 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 12:30:53,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 12:30:53,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 12:30:53,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 12:30:53,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 12:30:53" (1/1) ... [2021-06-10 12:30:53,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f04b7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:30:53, skipping insertion in model container [2021-06-10 12:30:53,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 12:30:53" (1/1) ... [2021-06-10 12:30:53,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 12:30:53,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 12:30:54,015 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-wmm/safe033_tso.oepc.i[950,963] [2021-06-10 12:30:54,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 12:30:54,146 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 12:30:54,154 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-wmm/safe033_tso.oepc.i[950,963] [2021-06-10 12:30:54,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 12:30:54,224 INFO L208 MainTranslator]: Completed translation [2021-06-10 12:30:54,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:30:54 WrapperNode [2021-06-10 12:30:54,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 12:30:54,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 12:30:54,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 12:30:54,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 12:30:54,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:30:54" (1/1) ... [2021-06-10 12:30:54,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:30:54" (1/1) ... [2021-06-10 12:30:54,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 12:30:54,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 12:30:54,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 12:30:54,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 12:30:54,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:30:54" (1/1) ... [2021-06-10 12:30:54,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:30:54" (1/1) ... [2021-06-10 12:30:54,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:30:54" (1/1) ... [2021-06-10 12:30:54,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:30:54" (1/1) ... [2021-06-10 12:30:54,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:30:54" (1/1) ... [2021-06-10 12:30:54,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:30:54" (1/1) ... [2021-06-10 12:30:54,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:30:54" (1/1) ... [2021-06-10 12:30:54,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 12:30:54,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 12:30:54,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 12:30:54,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 12:30:54,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:30:54" (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 [2021-06-10 12:30:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 12:30:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 12:30:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 12:30:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 12:30:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-10 12:30:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-10 12:30:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-10 12:30:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-10 12:30:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 12:30:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 12:30:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 12:30:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 12:30:54,309 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 12:30:54,554 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 12:30:54,554 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-10 12:30:54,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 12:30:54 BoogieIcfgContainer [2021-06-10 12:30:54,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 12:30:54,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 12:30:54,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 12:30:54,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 12:30:54,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 12:30:53" (1/3) ... [2021-06-10 12:30:54,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c38da6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 12:30:54, skipping insertion in model container [2021-06-10 12:30:54,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:30:54" (2/3) ... [2021-06-10 12:30:54,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c38da6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 12:30:54, skipping insertion in model container [2021-06-10 12:30:54,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 12:30:54" (3/3) ... [2021-06-10 12:30:54,561 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.oepc.i [2021-06-10 12:30:54,566 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 12:30:54,570 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 12:30:54,570 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 12:30:54,590 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,591 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,591 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,591 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,591 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,591 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,591 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,591 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,593 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,593 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,593 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,593 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,595 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,596 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,596 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,601 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,602 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,602 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,602 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:30:54,604 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 12:30:54,616 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-10 12:30:54,638 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 12:30:54,638 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 12:30:54,639 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 12:30:54,639 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 12:30:54,639 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 12:30:54,639 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 12:30:54,639 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 12:30:54,639 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 12:30:54,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 60 transitions, 130 flow [2021-06-10 12:30:54,681 INFO L129 PetriNetUnfolder]: 2/58 cut-off events. [2021-06-10 12:30:54,682 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:30:54,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 58 events. 2/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-06-10 12:30:54,684 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 60 transitions, 130 flow [2021-06-10 12:30:54,688 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 48 transitions, 102 flow [2021-06-10 12:30:54,706 INFO L129 PetriNetUnfolder]: 1/47 cut-off events. [2021-06-10 12:30:54,706 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:30:54,706 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:30:54,707 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:30:54,707 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:30:54,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:30:54,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1320378557, now seen corresponding path program 1 times [2021-06-10 12:30:54,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:30:54,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123877006] [2021-06-10 12:30:54,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:30:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:30:54,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:54,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:30:54,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:54,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:30:54,917 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:30:54,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:30:54,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:54,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:30:54,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:54,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:30:54,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:54,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:30:54,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:30:54,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123877006] [2021-06-10 12:30:54,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:30:54,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 12:30:54,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013343602] [2021-06-10 12:30:54,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 12:30:54,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:30:54,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 12:30:54,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 12:30:54,967 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 60 [2021-06-10 12:30:54,970 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 48 transitions, 102 flow. Second operand has 6 states, 6 states have (on average 48.166666666666664) internal successors, (289), 6 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:54,970 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:30:54,970 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 60 [2021-06-10 12:30:54,971 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:30:55,099 INFO L129 PetriNetUnfolder]: 24/116 cut-off events. [2021-06-10 12:30:55,100 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:30:55,101 INFO L84 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 116 events. 24/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 372 event pairs, 5 based on Foata normal form. 6/119 useless extension candidates. Maximal degree in co-relation 158. Up to 31 conditions per place. [2021-06-10 12:30:55,102 INFO L132 encePairwiseOnDemand]: 52/60 looper letters, 8 selfloop transitions, 3 changer transitions 19/68 dead transitions. [2021-06-10 12:30:55,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 68 transitions, 202 flow [2021-06-10 12:30:55,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-10 12:30:55,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-10 12:30:55,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 457 transitions. [2021-06-10 12:30:55,115 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8462962962962963 [2021-06-10 12:30:55,115 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 457 transitions. [2021-06-10 12:30:55,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 457 transitions. [2021-06-10 12:30:55,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:30:55,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 457 transitions. [2021-06-10 12:30:55,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 50.77777777777778) internal successors, (457), 9 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,125 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,126 INFO L185 Difference]: Start difference. First operand has 54 places, 48 transitions, 102 flow. Second operand 9 states and 457 transitions. [2021-06-10 12:30:55,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 68 transitions, 202 flow [2021-06-10 12:30:55,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 68 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 12:30:55,134 INFO L241 Difference]: Finished difference. Result has 67 places, 49 transitions, 141 flow [2021-06-10 12:30:55,136 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=141, PETRI_PLACES=67, PETRI_TRANSITIONS=49} [2021-06-10 12:30:55,136 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 13 predicate places. [2021-06-10 12:30:55,136 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 49 transitions, 141 flow [2021-06-10 12:30:55,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 48.166666666666664) internal successors, (289), 6 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,137 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:30:55,137 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:30:55,137 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 12:30:55,137 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:30:55,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:30:55,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1374804612, now seen corresponding path program 1 times [2021-06-10 12:30:55,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:30:55,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858025343] [2021-06-10 12:30:55,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:30:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:30:55,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:55,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:30:55,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:55,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:30:55,251 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-10 12:30:55,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:30:55,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:55,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:30:55,276 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-10 12:30:55,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:30:55,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:55,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:30:55,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:30:55,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858025343] [2021-06-10 12:30:55,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:30:55,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 12:30:55,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901935749] [2021-06-10 12:30:55,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 12:30:55,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:30:55,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 12:30:55,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 12:30:55,288 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 60 [2021-06-10 12:30:55,288 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 49 transitions, 141 flow. Second operand has 6 states, 6 states have (on average 48.166666666666664) internal successors, (289), 6 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,288 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:30:55,288 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 60 [2021-06-10 12:30:55,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:30:55,437 INFO L129 PetriNetUnfolder]: 44/181 cut-off events. [2021-06-10 12:30:55,437 INFO L130 PetriNetUnfolder]: For 76/76 co-relation queries the response was YES. [2021-06-10 12:30:55,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 181 events. 44/181 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 813 event pairs, 4 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 332. Up to 32 conditions per place. [2021-06-10 12:30:55,439 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 13 selfloop transitions, 12 changer transitions 8/72 dead transitions. [2021-06-10 12:30:55,439 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 72 transitions, 253 flow [2021-06-10 12:30:55,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 12:30:55,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 12:30:55,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 505 transitions. [2021-06-10 12:30:55,441 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8416666666666667 [2021-06-10 12:30:55,441 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 505 transitions. [2021-06-10 12:30:55,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 505 transitions. [2021-06-10 12:30:55,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:30:55,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 505 transitions. [2021-06-10 12:30:55,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 50.5) internal successors, (505), 10 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 60.0) internal successors, (660), 11 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,444 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 60.0) internal successors, (660), 11 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,444 INFO L185 Difference]: Start difference. First operand has 67 places, 49 transitions, 141 flow. Second operand 10 states and 505 transitions. [2021-06-10 12:30:55,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 72 transitions, 253 flow [2021-06-10 12:30:55,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 72 transitions, 244 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-06-10 12:30:55,448 INFO L241 Difference]: Finished difference. Result has 72 places, 60 transitions, 218 flow [2021-06-10 12:30:55,448 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=218, PETRI_PLACES=72, PETRI_TRANSITIONS=60} [2021-06-10 12:30:55,449 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 18 predicate places. [2021-06-10 12:30:55,449 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 60 transitions, 218 flow [2021-06-10 12:30:55,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 48.166666666666664) internal successors, (289), 6 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,449 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:30:55,449 INFO L263 CegarLoopForPetriNet]: 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] [2021-06-10 12:30:55,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 12:30:55,449 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:30:55,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:30:55,450 INFO L82 PathProgramCache]: Analyzing trace with hash 773672005, now seen corresponding path program 1 times [2021-06-10 12:30:55,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:30:55,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517918961] [2021-06-10 12:30:55,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:30:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:30:55,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:55,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:30:55,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:55,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:30:55,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:55,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:30:55,495 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-10 12:30:55,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:30:55,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:55,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:30:55,515 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-10 12:30:55,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:30:55,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:55,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:30:55,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:30:55,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517918961] [2021-06-10 12:30:55,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:30:55,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:30:55,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74929926] [2021-06-10 12:30:55,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:30:55,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:30:55,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:30:55,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:30:55,533 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 60 [2021-06-10 12:30:55,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 60 transitions, 218 flow. Second operand has 7 states, 7 states have (on average 48.142857142857146) internal successors, (337), 7 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:30:55,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 60 [2021-06-10 12:30:55,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:30:55,720 INFO L129 PetriNetUnfolder]: 23/144 cut-off events. [2021-06-10 12:30:55,720 INFO L130 PetriNetUnfolder]: For 120/139 co-relation queries the response was YES. [2021-06-10 12:30:55,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 144 events. 23/144 cut-off events. For 120/139 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 618 event pairs, 0 based on Foata normal form. 12/151 useless extension candidates. Maximal degree in co-relation 338. Up to 19 conditions per place. [2021-06-10 12:30:55,724 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 11 selfloop transitions, 15 changer transitions 13/78 dead transitions. [2021-06-10 12:30:55,724 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 78 transitions, 376 flow [2021-06-10 12:30:55,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-10 12:30:55,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-10 12:30:55,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 645 transitions. [2021-06-10 12:30:55,725 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8269230769230769 [2021-06-10 12:30:55,726 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 645 transitions. [2021-06-10 12:30:55,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 645 transitions. [2021-06-10 12:30:55,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:30:55,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 645 transitions. [2021-06-10 12:30:55,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 49.61538461538461) internal successors, (645), 13 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 60.0) internal successors, (840), 14 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,729 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 60.0) internal successors, (840), 14 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,729 INFO L185 Difference]: Start difference. First operand has 72 places, 60 transitions, 218 flow. Second operand 13 states and 645 transitions. [2021-06-10 12:30:55,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 78 transitions, 376 flow [2021-06-10 12:30:55,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 78 transitions, 354 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-06-10 12:30:55,736 INFO L241 Difference]: Finished difference. Result has 87 places, 62 transitions, 271 flow [2021-06-10 12:30:55,736 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=271, PETRI_PLACES=87, PETRI_TRANSITIONS=62} [2021-06-10 12:30:55,736 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 33 predicate places. [2021-06-10 12:30:55,737 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 62 transitions, 271 flow [2021-06-10 12:30:55,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.142857142857146) internal successors, (337), 7 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,739 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:30:55,739 INFO L263 CegarLoopForPetriNet]: 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] [2021-06-10 12:30:55,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 12:30:55,744 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:30:55,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:30:55,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1962388645, now seen corresponding path program 1 times [2021-06-10 12:30:55,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:30:55,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260001395] [2021-06-10 12:30:55,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:30:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:30:55,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:55,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:30:55,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:55,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:30:55,813 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-06-10 12:30:55,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:30:55,818 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:30:55,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:30:55,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:55,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:30:55,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:55,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:30:55,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:30:55,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:30:55,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:30:55,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260001395] [2021-06-10 12:30:55,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:30:55,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:30:55,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134559442] [2021-06-10 12:30:55,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:30:55,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:30:55,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:30:55,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:30:55,847 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2021-06-10 12:30:55,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 62 transitions, 271 flow. Second operand has 7 states, 7 states have (on average 44.857142857142854) internal successors, (314), 7 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,848 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:30:55,848 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2021-06-10 12:30:55,848 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:30:55,922 INFO L129 PetriNetUnfolder]: 12/148 cut-off events. [2021-06-10 12:30:55,922 INFO L130 PetriNetUnfolder]: For 192/197 co-relation queries the response was YES. [2021-06-10 12:30:55,923 INFO L84 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 148 events. 12/148 cut-off events. For 192/197 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 739 event pairs, 0 based on Foata normal form. 1/142 useless extension candidates. Maximal degree in co-relation 365. Up to 19 conditions per place. [2021-06-10 12:30:55,923 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2021-06-10 12:30:55,923 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 65 transitions, 319 flow [2021-06-10 12:30:55,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-10 12:30:55,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-10 12:30:55,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 362 transitions. [2021-06-10 12:30:55,924 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7541666666666667 [2021-06-10 12:30:55,924 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 362 transitions. [2021-06-10 12:30:55,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 362 transitions. [2021-06-10 12:30:55,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:30:55,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 362 transitions. [2021-06-10 12:30:55,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 45.25) internal successors, (362), 8 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 60.0) internal successors, (540), 9 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,926 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 60.0) internal successors, (540), 9 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,926 INFO L185 Difference]: Start difference. First operand has 87 places, 62 transitions, 271 flow. Second operand 8 states and 362 transitions. [2021-06-10 12:30:55,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 65 transitions, 319 flow [2021-06-10 12:30:55,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 65 transitions, 285 flow, removed 6 selfloop flow, removed 10 redundant places. [2021-06-10 12:30:55,929 INFO L241 Difference]: Finished difference. Result has 79 places, 0 transitions, 0 flow [2021-06-10 12:30:55,929 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=79, PETRI_TRANSITIONS=0} [2021-06-10 12:30:55,929 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 25 predicate places. [2021-06-10 12:30:55,929 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 0 transitions, 0 flow [2021-06-10 12:30:55,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 44.857142857142854) internal successors, (314), 7 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:30:55,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 12:30:55,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 12:30:55 BasicIcfg [2021-06-10 12:30:55,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 12:30:55,934 INFO L168 Benchmark]: Toolchain (without parser) took 2116.74 ms. Allocated memory is still 421.5 MB. Free memory was 384.3 MB in the beginning and 347.1 MB in the end (delta: 37.2 MB). Peak memory consumption was 38.4 MB. Max. memory is 16.0 GB. [2021-06-10 12:30:55,934 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 421.5 MB. Free memory was 402.3 MB in the beginning and 402.2 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 12:30:55,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.19 ms. Allocated memory is still 421.5 MB. Free memory was 384.1 MB in the beginning and 383.2 MB in the end (delta: 905.6 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-10 12:30:55,935 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.55 ms. Allocated memory is still 421.5 MB. Free memory was 383.2 MB in the beginning and 381.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 12:30:55,935 INFO L168 Benchmark]: Boogie Preprocessor took 12.97 ms. Allocated memory is still 421.5 MB. Free memory was 381.1 MB in the beginning and 380.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 12:30:55,935 INFO L168 Benchmark]: RCFGBuilder took 292.78 ms. Allocated memory is still 421.5 MB. Free memory was 380.1 MB in the beginning and 358.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-06-10 12:30:55,936 INFO L168 Benchmark]: TraceAbstraction took 1375.87 ms. Allocated memory is still 421.5 MB. Free memory was 358.1 MB in the beginning and 347.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.0 GB. [2021-06-10 12:30:55,937 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 421.5 MB. Free memory was 402.3 MB in the beginning and 402.2 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 405.19 ms. Allocated memory is still 421.5 MB. Free memory was 384.1 MB in the beginning and 383.2 MB in the end (delta: 905.6 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.55 ms. Allocated memory is still 421.5 MB. Free memory was 383.2 MB in the beginning and 381.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.97 ms. Allocated memory is still 421.5 MB. Free memory was 381.1 MB in the beginning and 380.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 292.78 ms. Allocated memory is still 421.5 MB. Free memory was 380.1 MB in the beginning and 358.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1375.87 ms. Allocated memory is still 421.5 MB. Free memory was 358.1 MB in the beginning and 347.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 CFG has 3 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 18.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1295.5ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 622.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 48.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 34 SDtfs, 93 SDslu, 111 SDs, 0 SdLazy, 130 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 114.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 376.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=271occurred in iteration=3, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.4ms SsaConstructionTime, 131.2ms SatisfiabilityAnalysisTime, 347.0ms InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 454 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...