/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/safe001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 02:30:20,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 02:30:20,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 02:30:20,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 02:30:20,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 02:30:20,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 02:30:20,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 02:30:20,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 02:30:20,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 02:30:20,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 02:30:20,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 02:30:20,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 02:30:20,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 02:30:20,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 02:30:20,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 02:30:20,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 02:30:20,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 02:30:20,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 02:30:20,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 02:30:20,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 02:30:20,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 02:30:20,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 02:30:20,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 02:30:20,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 02:30:20,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 02:30:20,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 02:30:20,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 02:30:20,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 02:30:20,789 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 [2021-03-11 02:30:20,817 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 02:30:20,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 02:30:20,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 02:30:20,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 02:30:20,820 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 02:30:20,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 02:30:20,820 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 02:30:20,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 02:30:20,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 02:30:20,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 02:30:20,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 02:30:20,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 02:30:20,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 02:30:20,822 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 02:30:20,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 02:30:20,822 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 02:30:20,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 02:30:20,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 02:30:20,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 02:30:20,822 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 02:30:20,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 02:30:20,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 02:30:20,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 02:30:20,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 02:30:20,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 02:30:20,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 02:30:20,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 02:30:20,823 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 02:30:20,823 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 02:30:20,823 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 02:30:21,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 02:30:21,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 02:30:21,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 02:30:21,076 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 02:30:21,079 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 02:30:21,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2021-03-11 02:30:21,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8108da487/d56a3e7c58d2424e9385d8d85f85c1ff/FLAG07385426f [2021-03-11 02:30:21,474 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 02:30:21,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2021-03-11 02:30:21,483 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8108da487/d56a3e7c58d2424e9385d8d85f85c1ff/FLAG07385426f [2021-03-11 02:30:21,493 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8108da487/d56a3e7c58d2424e9385d8d85f85c1ff [2021-03-11 02:30:21,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 02:30:21,498 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 02:30:21,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 02:30:21,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 02:30:21,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 02:30:21,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:30:21" (1/1) ... [2021-03-11 02:30:21,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5b00c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:30:21, skipping insertion in model container [2021-03-11 02:30:21,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:30:21" (1/1) ... [2021-03-11 02:30:21,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 02:30:21,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 02:30:21,602 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/safe001_tso.opt.i[949,962] [2021-03-11 02:30:21,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:30:21,759 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 02:30:21,768 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/safe001_tso.opt.i[949,962] [2021-03-11 02:30:21,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:30:21,841 INFO L208 MainTranslator]: Completed translation [2021-03-11 02:30:21,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:30:21 WrapperNode [2021-03-11 02:30:21,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 02:30:21,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 02:30:21,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 02:30:21,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 02:30:21,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:30:21" (1/1) ... [2021-03-11 02:30:21,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:30:21" (1/1) ... [2021-03-11 02:30:21,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 02:30:21,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 02:30:21,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 02:30:21,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 02:30:21,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:30:21" (1/1) ... [2021-03-11 02:30:21,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:30:21" (1/1) ... [2021-03-11 02:30:21,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:30:21" (1/1) ... [2021-03-11 02:30:21,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:30:21" (1/1) ... [2021-03-11 02:30:21,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:30:21" (1/1) ... [2021-03-11 02:30:21,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:30:21" (1/1) ... [2021-03-11 02:30:21,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:30:21" (1/1) ... [2021-03-11 02:30:21,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 02:30:21,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 02:30:21,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 02:30:21,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 02:30:21,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:30:21" (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 [2021-03-11 02:30:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 02:30:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 02:30:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 02:30:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 02:30:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-11 02:30:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-11 02:30:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-11 02:30:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-11 02:30:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-11 02:30:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-11 02:30:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 02:30:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 02:30:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 02:30:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 02:30:21,937 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 02:30:22,240 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 02:30:22,241 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-11 02:30:22,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:30:22 BoogieIcfgContainer [2021-03-11 02:30:22,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 02:30:22,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 02:30:22,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 02:30:22,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 02:30:22,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 02:30:21" (1/3) ... [2021-03-11 02:30:22,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f4a7e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:30:22, skipping insertion in model container [2021-03-11 02:30:22,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:30:21" (2/3) ... [2021-03-11 02:30:22,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f4a7e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:30:22, skipping insertion in model container [2021-03-11 02:30:22,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:30:22" (3/3) ... [2021-03-11 02:30:22,247 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.opt.i [2021-03-11 02:30:22,253 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 02:30:22,256 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 02:30:22,257 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 02:30:22,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,282 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,282 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,282 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,283 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,284 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,284 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,284 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,284 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,287 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,287 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,287 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,287 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,288 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,288 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,288 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,288 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,291 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,291 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,301 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,301 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,301 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,301 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:30:22,304 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 02:30:22,319 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-11 02:30:22,340 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 02:30:22,340 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 02:30:22,340 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 02:30:22,340 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 02:30:22,340 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 02:30:22,340 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 02:30:22,340 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 02:30:22,340 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 02:30:22,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-03-11 02:30:22,397 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-03-11 02:30:22,397 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:30:22,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-11 02:30:22,401 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-03-11 02:30:22,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-03-11 02:30:22,418 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-03-11 02:30:22,418 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:30:22,418 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:30:22,418 INFO L255 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] [2021-03-11 02:30:22,418 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:30:22,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:30:22,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1095445389, now seen corresponding path program 1 times [2021-03-11 02:30:22,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:30:22,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309947749] [2021-03-11 02:30:22,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:30:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:30:22,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:22,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:22,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:22,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:30:22,627 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:30:22,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:30:22,646 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:30:22,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:30:22,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:22,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:22,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:22,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:22,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:22,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:22,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:30:22,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309947749] [2021-03-11 02:30:22,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:30:22,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:30:22,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756461914] [2021-03-11 02:30:22,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:30:22,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:30:22,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:30:22,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:30:22,733 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 74 [2021-03-11 02:30:22,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 59 transitions, 127 flow. Second operand has 7 states, 7 states have (on average 55.42857142857143) internal successors, (388), 7 states have internal predecessors, (388), 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) [2021-03-11 02:30:22,740 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:30:22,740 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 74 [2021-03-11 02:30:22,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:30:23,080 INFO L129 PetriNetUnfolder]: 541/1192 cut-off events. [2021-03-11 02:30:23,080 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:30:23,083 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2073 conditions, 1192 events. 541/1192 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 7697 event pairs, 72 based on Foata normal form. 52/1214 useless extension candidates. Maximal degree in co-relation 2042. Up to 248 conditions per place. [2021-03-11 02:30:23,088 INFO L132 encePairwiseOnDemand]: 62/74 looper letters, 22 selfloop transitions, 7 changer transitions 56/127 dead transitions. [2021-03-11 02:30:23,088 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 127 transitions, 433 flow [2021-03-11 02:30:23,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:30:23,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:30:23,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 793 transitions. [2021-03-11 02:30:23,098 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8243243243243243 [2021-03-11 02:30:23,098 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 793 transitions. [2021-03-11 02:30:23,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 793 transitions. [2021-03-11 02:30:23,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:30:23,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 793 transitions. [2021-03-11 02:30:23,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 61.0) internal successors, (793), 13 states have internal predecessors, (793), 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) [2021-03-11 02:30:23,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 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) [2021-03-11 02:30:23,109 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 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) [2021-03-11 02:30:23,110 INFO L185 Difference]: Start difference. First operand has 68 places, 59 transitions, 127 flow. Second operand 13 states and 793 transitions. [2021-03-11 02:30:23,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 127 transitions, 433 flow [2021-03-11 02:30:23,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 127 transitions, 430 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-11 02:30:23,115 INFO L241 Difference]: Finished difference. Result has 89 places, 63 transitions, 222 flow [2021-03-11 02:30:23,116 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=222, PETRI_PLACES=89, PETRI_TRANSITIONS=63} [2021-03-11 02:30:23,117 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 21 predicate places. [2021-03-11 02:30:23,117 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 63 transitions, 222 flow [2021-03-11 02:30:23,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 55.42857142857143) internal successors, (388), 7 states have internal predecessors, (388), 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) [2021-03-11 02:30:23,117 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:30:23,117 INFO L255 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] [2021-03-11 02:30:23,118 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 02:30:23,118 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:30:23,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:30:23,118 INFO L82 PathProgramCache]: Analyzing trace with hash -550942002, now seen corresponding path program 1 times [2021-03-11 02:30:23,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:30:23,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141355970] [2021-03-11 02:30:23,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:30:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:30:23,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:23,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:23,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:23,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:30:23,181 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:30:23,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:30:23,207 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:30:23,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:30:23,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:23,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:23,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:23,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:23,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:23,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:23,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:30:23,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141355970] [2021-03-11 02:30:23,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:30:23,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:30:23,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377949001] [2021-03-11 02:30:23,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:30:23,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:30:23,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:30:23,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:30:23,250 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 74 [2021-03-11 02:30:23,251 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 63 transitions, 222 flow. Second operand has 7 states, 7 states have (on average 55.57142857142857) internal successors, (389), 7 states have internal predecessors, (389), 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) [2021-03-11 02:30:23,251 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:30:23,251 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 74 [2021-03-11 02:30:23,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:30:23,503 INFO L129 PetriNetUnfolder]: 358/998 cut-off events. [2021-03-11 02:30:23,504 INFO L130 PetriNetUnfolder]: For 2258/2697 co-relation queries the response was YES. [2021-03-11 02:30:23,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3241 conditions, 998 events. 358/998 cut-off events. For 2258/2697 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 6786 event pairs, 20 based on Foata normal form. 30/1015 useless extension candidates. Maximal degree in co-relation 3199. Up to 286 conditions per place. [2021-03-11 02:30:23,509 INFO L132 encePairwiseOnDemand]: 62/74 looper letters, 23 selfloop transitions, 15 changer transitions 61/141 dead transitions. [2021-03-11 02:30:23,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 141 transitions, 1014 flow [2021-03-11 02:30:23,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:30:23,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:30:23,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 788 transitions. [2021-03-11 02:30:23,511 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8191268191268192 [2021-03-11 02:30:23,511 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 788 transitions. [2021-03-11 02:30:23,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 788 transitions. [2021-03-11 02:30:23,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:30:23,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 788 transitions. [2021-03-11 02:30:23,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 60.61538461538461) internal successors, (788), 13 states have internal predecessors, (788), 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) [2021-03-11 02:30:23,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 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) [2021-03-11 02:30:23,515 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 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) [2021-03-11 02:30:23,515 INFO L185 Difference]: Start difference. First operand has 89 places, 63 transitions, 222 flow. Second operand 13 states and 788 transitions. [2021-03-11 02:30:23,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 141 transitions, 1014 flow [2021-03-11 02:30:23,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 141 transitions, 986 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-03-11 02:30:23,525 INFO L241 Difference]: Finished difference. Result has 100 places, 73 transitions, 413 flow [2021-03-11 02:30:23,525 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=413, PETRI_PLACES=100, PETRI_TRANSITIONS=73} [2021-03-11 02:30:23,525 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 32 predicate places. [2021-03-11 02:30:23,525 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 73 transitions, 413 flow [2021-03-11 02:30:23,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 55.57142857142857) internal successors, (389), 7 states have internal predecessors, (389), 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) [2021-03-11 02:30:23,526 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:30:23,526 INFO L255 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, 1] [2021-03-11 02:30:23,526 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 02:30:23,526 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:30:23,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:30:23,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1129954835, now seen corresponding path program 1 times [2021-03-11 02:30:23,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:30:23,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135877496] [2021-03-11 02:30:23,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:30:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:30:23,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:23,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:23,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:23,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:30:23,609 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:30:23,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:30:23,617 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:30:23,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:30:23,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:23,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:23,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:23,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:23,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:23,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:23,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:30:23,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135877496] [2021-03-11 02:30:23,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:30:23,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:30:23,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320687483] [2021-03-11 02:30:23,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:30:23,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:30:23,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:30:23,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:30:23,651 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 74 [2021-03-11 02:30:23,651 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 73 transitions, 413 flow. Second operand has 7 states, 7 states have (on average 55.714285714285715) internal successors, (390), 7 states have internal predecessors, (390), 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) [2021-03-11 02:30:23,651 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:30:23,651 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 74 [2021-03-11 02:30:23,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:30:23,844 INFO L129 PetriNetUnfolder]: 216/626 cut-off events. [2021-03-11 02:30:23,846 INFO L130 PetriNetUnfolder]: For 3912/4569 co-relation queries the response was YES. [2021-03-11 02:30:23,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2803 conditions, 626 events. 216/626 cut-off events. For 3912/4569 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3566 event pairs, 1 based on Foata normal form. 20/635 useless extension candidates. Maximal degree in co-relation 2749. Up to 188 conditions per place. [2021-03-11 02:30:23,852 INFO L132 encePairwiseOnDemand]: 62/74 looper letters, 29 selfloop transitions, 19 changer transitions 43/133 dead transitions. [2021-03-11 02:30:23,852 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 133 transitions, 1262 flow [2021-03-11 02:30:23,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:30:23,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:30:23,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 768 transitions. [2021-03-11 02:30:23,857 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7983367983367984 [2021-03-11 02:30:23,857 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 768 transitions. [2021-03-11 02:30:23,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 768 transitions. [2021-03-11 02:30:23,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:30:23,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 768 transitions. [2021-03-11 02:30:23,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 59.07692307692308) internal successors, (768), 13 states have internal predecessors, (768), 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) [2021-03-11 02:30:23,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 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) [2021-03-11 02:30:23,860 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 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) [2021-03-11 02:30:23,860 INFO L185 Difference]: Start difference. First operand has 100 places, 73 transitions, 413 flow. Second operand 13 states and 768 transitions. [2021-03-11 02:30:23,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 133 transitions, 1262 flow [2021-03-11 02:30:23,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 133 transitions, 1212 flow, removed 25 selfloop flow, removed 1 redundant places. [2021-03-11 02:30:23,871 INFO L241 Difference]: Finished difference. Result has 114 places, 82 transitions, 621 flow [2021-03-11 02:30:23,871 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=621, PETRI_PLACES=114, PETRI_TRANSITIONS=82} [2021-03-11 02:30:23,872 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 46 predicate places. [2021-03-11 02:30:23,872 INFO L480 AbstractCegarLoop]: Abstraction has has 114 places, 82 transitions, 621 flow [2021-03-11 02:30:23,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 55.714285714285715) internal successors, (390), 7 states have internal predecessors, (390), 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) [2021-03-11 02:30:23,872 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:30:23,872 INFO L255 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, 1, 1, 1] [2021-03-11 02:30:23,872 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 02:30:23,872 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:30:23,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:30:23,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1094749813, now seen corresponding path program 1 times [2021-03-11 02:30:23,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:30:23,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683430227] [2021-03-11 02:30:23,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:30:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:30:23,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:23,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:23,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:23,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:30:23,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:23,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:30:23,946 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:30:23,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:30:23,956 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:30:23,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:30:23,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:23,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:23,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:23,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:23,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:23,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:23,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:30:23,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683430227] [2021-03-11 02:30:23,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:30:23,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 02:30:23,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731179878] [2021-03-11 02:30:23,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 02:30:23,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:30:23,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 02:30:23,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-11 02:30:23,989 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 74 [2021-03-11 02:30:23,989 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 82 transitions, 621 flow. Second operand has 8 states, 8 states have (on average 55.75) internal successors, (446), 8 states have internal predecessors, (446), 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) [2021-03-11 02:30:23,989 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:30:23,989 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 74 [2021-03-11 02:30:23,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:30:24,163 INFO L129 PetriNetUnfolder]: 126/419 cut-off events. [2021-03-11 02:30:24,164 INFO L130 PetriNetUnfolder]: For 3779/4600 co-relation queries the response was YES. [2021-03-11 02:30:24,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2151 conditions, 419 events. 126/419 cut-off events. For 3779/4600 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2122 event pairs, 1 based on Foata normal form. 19/432 useless extension candidates. Maximal degree in co-relation 2082. Up to 101 conditions per place. [2021-03-11 02:30:24,167 INFO L132 encePairwiseOnDemand]: 62/74 looper letters, 22 selfloop transitions, 12 changer transitions 77/153 dead transitions. [2021-03-11 02:30:24,167 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 153 transitions, 1819 flow [2021-03-11 02:30:24,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 02:30:24,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 02:30:24,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 657 transitions. [2021-03-11 02:30:24,169 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8071253071253072 [2021-03-11 02:30:24,169 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 657 transitions. [2021-03-11 02:30:24,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 657 transitions. [2021-03-11 02:30:24,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:30:24,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 657 transitions. [2021-03-11 02:30:24,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 59.72727272727273) internal successors, (657), 11 states have internal predecessors, (657), 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) [2021-03-11 02:30:24,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 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) [2021-03-11 02:30:24,171 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 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) [2021-03-11 02:30:24,172 INFO L185 Difference]: Start difference. First operand has 114 places, 82 transitions, 621 flow. Second operand 11 states and 657 transitions. [2021-03-11 02:30:24,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 153 transitions, 1819 flow [2021-03-11 02:30:24,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 153 transitions, 1734 flow, removed 39 selfloop flow, removed 12 redundant places. [2021-03-11 02:30:24,180 INFO L241 Difference]: Finished difference. Result has 111 places, 69 transitions, 456 flow [2021-03-11 02:30:24,180 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=456, PETRI_PLACES=111, PETRI_TRANSITIONS=69} [2021-03-11 02:30:24,181 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 43 predicate places. [2021-03-11 02:30:24,181 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 69 transitions, 456 flow [2021-03-11 02:30:24,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.75) internal successors, (446), 8 states have internal predecessors, (446), 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) [2021-03-11 02:30:24,181 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:30:24,181 INFO L255 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, 1, 1, 1, 1] [2021-03-11 02:30:24,181 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 02:30:24,181 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:30:24,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:30:24,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1826760742, now seen corresponding path program 1 times [2021-03-11 02:30:24,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:30:24,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540860382] [2021-03-11 02:30:24,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:30:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:30:24,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:24,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:30:24,223 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:30:24,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:30:24,230 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:30:24,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:30:24,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:24,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:24,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:24,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:30:24,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540860382] [2021-03-11 02:30:24,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:30:24,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:30:24,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686753331] [2021-03-11 02:30:24,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:30:24,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:30:24,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:30:24,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:30:24,260 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 74 [2021-03-11 02:30:24,261 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 69 transitions, 456 flow. Second operand has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 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) [2021-03-11 02:30:24,261 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:30:24,261 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 74 [2021-03-11 02:30:24,261 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:30:24,416 INFO L129 PetriNetUnfolder]: 25/177 cut-off events. [2021-03-11 02:30:24,417 INFO L130 PetriNetUnfolder]: For 1426/1685 co-relation queries the response was YES. [2021-03-11 02:30:24,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 780 conditions, 177 events. 25/177 cut-off events. For 1426/1685 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 653 event pairs, 0 based on Foata normal form. 13/188 useless extension candidates. Maximal degree in co-relation 713. Up to 29 conditions per place. [2021-03-11 02:30:24,420 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 22 selfloop transitions, 13 changer transitions 22/99 dead transitions. [2021-03-11 02:30:24,420 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 99 transitions, 969 flow [2021-03-11 02:30:24,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:30:24,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:30:24,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 749 transitions. [2021-03-11 02:30:24,422 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7785862785862786 [2021-03-11 02:30:24,422 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 749 transitions. [2021-03-11 02:30:24,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 749 transitions. [2021-03-11 02:30:24,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:30:24,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 749 transitions. [2021-03-11 02:30:24,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 57.61538461538461) internal successors, (749), 13 states have internal predecessors, (749), 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) [2021-03-11 02:30:24,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 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) [2021-03-11 02:30:24,427 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 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) [2021-03-11 02:30:24,427 INFO L185 Difference]: Start difference. First operand has 111 places, 69 transitions, 456 flow. Second operand 13 states and 749 transitions. [2021-03-11 02:30:24,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 99 transitions, 969 flow [2021-03-11 02:30:24,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 99 transitions, 737 flow, removed 94 selfloop flow, removed 16 redundant places. [2021-03-11 02:30:24,433 INFO L241 Difference]: Finished difference. Result has 113 places, 73 transitions, 485 flow [2021-03-11 02:30:24,433 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=485, PETRI_PLACES=113, PETRI_TRANSITIONS=73} [2021-03-11 02:30:24,433 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 45 predicate places. [2021-03-11 02:30:24,433 INFO L480 AbstractCegarLoop]: Abstraction has has 113 places, 73 transitions, 485 flow [2021-03-11 02:30:24,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 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) [2021-03-11 02:30:24,433 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:30:24,433 INFO L255 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, 1, 1, 1, 1, 1] [2021-03-11 02:30:24,434 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 02:30:24,434 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:30:24,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:30:24,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1537745812, now seen corresponding path program 1 times [2021-03-11 02:30:24,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:30:24,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193513536] [2021-03-11 02:30:24,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:30:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:30:24,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:24,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:30:24,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:30:24,498 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:30:24,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:30:24,511 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:30:24,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:30:24,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:24,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:24,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:24,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:30:24,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193513536] [2021-03-11 02:30:24,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:30:24,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 02:30:24,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368331720] [2021-03-11 02:30:24,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 02:30:24,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:30:24,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 02:30:24,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-11 02:30:24,548 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 74 [2021-03-11 02:30:24,548 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 73 transitions, 485 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 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) [2021-03-11 02:30:24,548 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:30:24,548 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 74 [2021-03-11 02:30:24,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:30:24,624 INFO L129 PetriNetUnfolder]: 15/162 cut-off events. [2021-03-11 02:30:24,624 INFO L130 PetriNetUnfolder]: For 940/1182 co-relation queries the response was YES. [2021-03-11 02:30:24,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 654 conditions, 162 events. 15/162 cut-off events. For 940/1182 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 594 event pairs, 0 based on Foata normal form. 11/171 useless extension candidates. Maximal degree in co-relation 591. Up to 28 conditions per place. [2021-03-11 02:30:24,626 INFO L132 encePairwiseOnDemand]: 63/74 looper letters, 18 selfloop transitions, 11 changer transitions 18/89 dead transitions. [2021-03-11 02:30:24,626 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 89 transitions, 776 flow [2021-03-11 02:30:24,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 02:30:24,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 02:30:24,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 468 transitions. [2021-03-11 02:30:24,627 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7905405405405406 [2021-03-11 02:30:24,627 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 468 transitions. [2021-03-11 02:30:24,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 468 transitions. [2021-03-11 02:30:24,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:30:24,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 468 transitions. [2021-03-11 02:30:24,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.5) internal successors, (468), 8 states have internal predecessors, (468), 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) [2021-03-11 02:30:24,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 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) [2021-03-11 02:30:24,629 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 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) [2021-03-11 02:30:24,629 INFO L185 Difference]: Start difference. First operand has 113 places, 73 transitions, 485 flow. Second operand 8 states and 468 transitions. [2021-03-11 02:30:24,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 89 transitions, 776 flow [2021-03-11 02:30:24,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 89 transitions, 667 flow, removed 51 selfloop flow, removed 13 redundant places. [2021-03-11 02:30:24,636 INFO L241 Difference]: Finished difference. Result has 102 places, 66 transitions, 372 flow [2021-03-11 02:30:24,636 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=372, PETRI_PLACES=102, PETRI_TRANSITIONS=66} [2021-03-11 02:30:24,636 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 34 predicate places. [2021-03-11 02:30:24,636 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 66 transitions, 372 flow [2021-03-11 02:30:24,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 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) [2021-03-11 02:30:24,636 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:30:24,636 INFO L255 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, 1, 1, 1, 1, 1] [2021-03-11 02:30:24,636 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 02:30:24,636 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:30:24,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:30:24,637 INFO L82 PathProgramCache]: Analyzing trace with hash -741290866, now seen corresponding path program 2 times [2021-03-11 02:30:24,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:30:24,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385941130] [2021-03-11 02:30:24,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:30:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:30:24,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:24,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:30:24,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:30:24,679 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:30:24,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:30:24,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:24,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:24,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:24,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:30:24,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385941130] [2021-03-11 02:30:24,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:30:24,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:30:24,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423764912] [2021-03-11 02:30:24,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:30:24,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:30:24,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:30:24,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:30:24,711 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 74 [2021-03-11 02:30:24,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 66 transitions, 372 flow. Second operand has 7 states, 7 states have (on average 59.714285714285715) internal successors, (418), 7 states have internal predecessors, (418), 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) [2021-03-11 02:30:24,712 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:30:24,712 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 74 [2021-03-11 02:30:24,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:30:24,773 INFO L129 PetriNetUnfolder]: 3/97 cut-off events. [2021-03-11 02:30:24,774 INFO L130 PetriNetUnfolder]: For 326/357 co-relation queries the response was YES. [2021-03-11 02:30:24,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 97 events. 3/97 cut-off events. For 326/357 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 247 event pairs, 0 based on Foata normal form. 9/105 useless extension candidates. Maximal degree in co-relation 304. Up to 12 conditions per place. [2021-03-11 02:30:24,774 INFO L132 encePairwiseOnDemand]: 67/74 looper letters, 10 selfloop transitions, 2 changer transitions 14/71 dead transitions. [2021-03-11 02:30:24,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 71 transitions, 452 flow [2021-03-11 02:30:24,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 02:30:24,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 02:30:24,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 484 transitions. [2021-03-11 02:30:24,775 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8175675675675675 [2021-03-11 02:30:24,775 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 484 transitions. [2021-03-11 02:30:24,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 484 transitions. [2021-03-11 02:30:24,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:30:24,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 484 transitions. [2021-03-11 02:30:24,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 60.5) internal successors, (484), 8 states have internal predecessors, (484), 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) [2021-03-11 02:30:24,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 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) [2021-03-11 02:30:24,777 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 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) [2021-03-11 02:30:24,777 INFO L185 Difference]: Start difference. First operand has 102 places, 66 transitions, 372 flow. Second operand 8 states and 484 transitions. [2021-03-11 02:30:24,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 71 transitions, 452 flow [2021-03-11 02:30:24,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 71 transitions, 382 flow, removed 15 selfloop flow, removed 14 redundant places. [2021-03-11 02:30:24,782 INFO L241 Difference]: Finished difference. Result has 96 places, 57 transitions, 222 flow [2021-03-11 02:30:24,783 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=222, PETRI_PLACES=96, PETRI_TRANSITIONS=57} [2021-03-11 02:30:24,783 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 28 predicate places. [2021-03-11 02:30:24,783 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 57 transitions, 222 flow [2021-03-11 02:30:24,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 59.714285714285715) internal successors, (418), 7 states have internal predecessors, (418), 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) [2021-03-11 02:30:24,783 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:30:24,783 INFO L255 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, 1, 1, 1, 1, 1] [2021-03-11 02:30:24,783 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 02:30:24,783 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:30:24,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:30:24,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1131603086, now seen corresponding path program 3 times [2021-03-11 02:30:24,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:30:24,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948637461] [2021-03-11 02:30:24,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:30:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:30:24,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:24,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:30:24,822 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:30:24,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:30:24,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:30:24,840 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:30:24,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:24,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:24,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:30:24,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948637461] [2021-03-11 02:30:24,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:30:24,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:30:24,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327059654] [2021-03-11 02:30:24,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:30:24,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:30:24,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:30:24,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:30:24,848 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 74 [2021-03-11 02:30:24,849 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 57 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 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) [2021-03-11 02:30:24,849 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:30:24,849 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 74 [2021-03-11 02:30:24,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:30:24,938 INFO L129 PetriNetUnfolder]: 93/280 cut-off events. [2021-03-11 02:30:24,938 INFO L130 PetriNetUnfolder]: For 162/164 co-relation queries the response was YES. [2021-03-11 02:30:24,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 566 conditions, 280 events. 93/280 cut-off events. For 162/164 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1352 event pairs, 2 based on Foata normal form. 8/277 useless extension candidates. Maximal degree in co-relation 539. Up to 86 conditions per place. [2021-03-11 02:30:24,940 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 9 selfloop transitions, 5 changer transitions 21/82 dead transitions. [2021-03-11 02:30:24,940 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 82 transitions, 342 flow [2021-03-11 02:30:24,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:30:24,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:30:24,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 577 transitions. [2021-03-11 02:30:24,941 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8663663663663663 [2021-03-11 02:30:24,941 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 577 transitions. [2021-03-11 02:30:24,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 577 transitions. [2021-03-11 02:30:24,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:30:24,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 577 transitions. [2021-03-11 02:30:24,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 64.11111111111111) internal successors, (577), 9 states have internal predecessors, (577), 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) [2021-03-11 02:30:24,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2021-03-11 02:30:24,943 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2021-03-11 02:30:24,943 INFO L185 Difference]: Start difference. First operand has 96 places, 57 transitions, 222 flow. Second operand 9 states and 577 transitions. [2021-03-11 02:30:24,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 82 transitions, 342 flow [2021-03-11 02:30:24,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 82 transitions, 271 flow, removed 11 selfloop flow, removed 18 redundant places. [2021-03-11 02:30:24,945 INFO L241 Difference]: Finished difference. Result has 86 places, 59 transitions, 201 flow [2021-03-11 02:30:24,945 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=201, PETRI_PLACES=86, PETRI_TRANSITIONS=59} [2021-03-11 02:30:24,945 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 18 predicate places. [2021-03-11 02:30:24,945 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 59 transitions, 201 flow [2021-03-11 02:30:24,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 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) [2021-03-11 02:30:24,946 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:30:24,946 INFO L255 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, 1, 1, 1, 1, 1, 1] [2021-03-11 02:30:24,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 02:30:24,946 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:30:24,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:30:24,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1625987629, now seen corresponding path program 1 times [2021-03-11 02:30:24,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:30:24,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314972052] [2021-03-11 02:30:24,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:30:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:30:24,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:24,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:30:24,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:24,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:30:24,988 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:30:24,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:30:25,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:25,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:30:25,011 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:30:25,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:25,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:25,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:25,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:30:25,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314972052] [2021-03-11 02:30:25,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:30:25,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:30:25,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244212034] [2021-03-11 02:30:25,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:30:25,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:30:25,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:30:25,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:30:25,022 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 74 [2021-03-11 02:30:25,022 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 59 transitions, 201 flow. Second operand has 7 states, 7 states have (on average 61.142857142857146) internal successors, (428), 7 states have internal predecessors, (428), 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) [2021-03-11 02:30:25,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:30:25,022 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 74 [2021-03-11 02:30:25,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:30:25,123 INFO L129 PetriNetUnfolder]: 42/179 cut-off events. [2021-03-11 02:30:25,123 INFO L130 PetriNetUnfolder]: For 234/277 co-relation queries the response was YES. [2021-03-11 02:30:25,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 179 events. 42/179 cut-off events. For 234/277 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 698 event pairs, 0 based on Foata normal form. 10/185 useless extension candidates. Maximal degree in co-relation 487. Up to 64 conditions per place. [2021-03-11 02:30:25,124 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 5 selfloop transitions, 7 changer transitions 25/84 dead transitions. [2021-03-11 02:30:25,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 84 transitions, 452 flow [2021-03-11 02:30:25,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:30:25,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:30:25,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 639 transitions. [2021-03-11 02:30:25,125 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8635135135135135 [2021-03-11 02:30:25,125 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 639 transitions. [2021-03-11 02:30:25,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 639 transitions. [2021-03-11 02:30:25,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:30:25,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 639 transitions. [2021-03-11 02:30:25,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 63.9) internal successors, (639), 10 states have internal predecessors, (639), 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) [2021-03-11 02:30:25,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 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) [2021-03-11 02:30:25,128 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 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) [2021-03-11 02:30:25,128 INFO L185 Difference]: Start difference. First operand has 86 places, 59 transitions, 201 flow. Second operand 10 states and 639 transitions. [2021-03-11 02:30:25,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 84 transitions, 452 flow [2021-03-11 02:30:25,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 84 transitions, 426 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-11 02:30:25,130 INFO L241 Difference]: Finished difference. Result has 91 places, 59 transitions, 224 flow [2021-03-11 02:30:25,130 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=224, PETRI_PLACES=91, PETRI_TRANSITIONS=59} [2021-03-11 02:30:25,130 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 23 predicate places. [2021-03-11 02:30:25,130 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 59 transitions, 224 flow [2021-03-11 02:30:25,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 61.142857142857146) internal successors, (428), 7 states have internal predecessors, (428), 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) [2021-03-11 02:30:25,130 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:30:25,130 INFO L255 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, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:30:25,131 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 02:30:25,131 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:30:25,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:30:25,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1379589422, now seen corresponding path program 1 times [2021-03-11 02:30:25,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:30:25,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706205691] [2021-03-11 02:30:25,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:30:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:30:25,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:25,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:25,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:25,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:30:25,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:25,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:30:25,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:25,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:30:25,181 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:30:25,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:30:25,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:25,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:30:25,202 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:30:25,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:30:25,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:30:25,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:30:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:30:25,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706205691] [2021-03-11 02:30:25,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:30:25,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 02:30:25,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510215027] [2021-03-11 02:30:25,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 02:30:25,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:30:25,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 02:30:25,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-11 02:30:25,210 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 74 [2021-03-11 02:30:25,211 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 59 transitions, 224 flow. Second operand has 8 states, 8 states have (on average 61.125) internal successors, (489), 8 states have internal predecessors, (489), 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) [2021-03-11 02:30:25,211 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:30:25,211 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 74 [2021-03-11 02:30:25,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:30:25,312 INFO L129 PetriNetUnfolder]: 4/68 cut-off events. [2021-03-11 02:30:25,312 INFO L130 PetriNetUnfolder]: For 167/184 co-relation queries the response was YES. [2021-03-11 02:30:25,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 68 events. 4/68 cut-off events. For 167/184 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 102 event pairs, 0 based on Foata normal form. 6/74 useless extension candidates. Maximal degree in co-relation 177. Up to 13 conditions per place. [2021-03-11 02:30:25,313 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2021-03-11 02:30:25,313 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 62 transitions, 320 flow [2021-03-11 02:30:25,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 02:30:25,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 02:30:25,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 683 transitions. [2021-03-11 02:30:25,315 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8390663390663391 [2021-03-11 02:30:25,315 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 683 transitions. [2021-03-11 02:30:25,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 683 transitions. [2021-03-11 02:30:25,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:30:25,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 683 transitions. [2021-03-11 02:30:25,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 62.09090909090909) internal successors, (683), 11 states have internal predecessors, (683), 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) [2021-03-11 02:30:25,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 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) [2021-03-11 02:30:25,318 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 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) [2021-03-11 02:30:25,318 INFO L185 Difference]: Start difference. First operand has 91 places, 59 transitions, 224 flow. Second operand 11 states and 683 transitions. [2021-03-11 02:30:25,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 62 transitions, 320 flow [2021-03-11 02:30:25,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 62 transitions, 255 flow, removed 23 selfloop flow, removed 11 redundant places. [2021-03-11 02:30:25,319 INFO L241 Difference]: Finished difference. Result has 80 places, 0 transitions, 0 flow [2021-03-11 02:30:25,320 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=80, PETRI_TRANSITIONS=0} [2021-03-11 02:30:25,320 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 12 predicate places. [2021-03-11 02:30:25,320 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 0 transitions, 0 flow [2021-03-11 02:30:25,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 61.125) internal successors, (489), 8 states have internal predecessors, (489), 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) [2021-03-11 02:30:25,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 02:30:25,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:30:25 BasicIcfg [2021-03-11 02:30:25,323 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 02:30:25,325 INFO L168 Benchmark]: Toolchain (without parser) took 3828.52 ms. Allocated memory was 255.9 MB in the beginning and 419.4 MB in the end (delta: 163.6 MB). Free memory was 234.9 MB in the beginning and 360.2 MB in the end (delta: -125.3 MB). Peak memory consumption was 36.7 MB. Max. memory is 16.0 GB. [2021-03-11 02:30:25,325 INFO L168 Benchmark]: CDTParser took 0.08 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. [2021-03-11 02:30:25,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.33 ms. Allocated memory was 255.9 MB in the beginning and 337.6 MB in the end (delta: 81.8 MB). Free memory was 234.4 MB in the beginning and 300.4 MB in the end (delta: -66.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-11 02:30:25,327 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.47 ms. Allocated memory is still 337.6 MB. Free memory was 300.4 MB in the beginning and 298.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:30:25,327 INFO L168 Benchmark]: Boogie Preprocessor took 12.50 ms. Allocated memory is still 337.6 MB. Free memory was 298.3 MB in the beginning and 296.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:30:25,327 INFO L168 Benchmark]: RCFGBuilder took 364.39 ms. Allocated memory is still 337.6 MB. Free memory was 296.9 MB in the beginning and 275.3 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-11 02:30:25,330 INFO L168 Benchmark]: TraceAbstraction took 3080.03 ms. Allocated memory was 337.6 MB in the beginning and 419.4 MB in the end (delta: 81.8 MB). Free memory was 275.0 MB in the beginning and 360.2 MB in the end (delta: -85.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 02:30:25,332 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 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 343.33 ms. Allocated memory was 255.9 MB in the beginning and 337.6 MB in the end (delta: 81.8 MB). Free memory was 234.4 MB in the beginning and 300.4 MB in the end (delta: -66.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.47 ms. Allocated memory is still 337.6 MB. Free memory was 300.4 MB in the beginning and 298.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.50 ms. Allocated memory is still 337.6 MB. Free memory was 298.3 MB in the beginning and 296.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 364.39 ms. Allocated memory is still 337.6 MB. Free memory was 296.9 MB in the beginning and 275.3 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3080.03 ms. Allocated memory was 337.6 MB in the beginning and 419.4 MB in the end (delta: 81.8 MB). Free memory was 275.0 MB in the beginning and 360.2 MB in the end (delta: -85.2 MB). There was no memory consumed. 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 7.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2983.9ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1733.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 69.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 186 SDtfs, 341 SDslu, 610 SDs, 0 SdLazy, 462 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 277.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1112.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=621occurred in iteration=3, InterpolantAutomatonStates: 109, 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: 24.8ms SsaConstructionTime, 133.7ms SatisfiabilityAnalysisTime, 872.5ms InterpolantComputationTime, 452 NumberOfCodeBlocks, 452 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 442 ConstructedInterpolants, 0 QuantifiedInterpolants, 2024 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...