/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 21:06:40,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 21:06:40,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 21:06:40,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 21:06:40,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 21:06:40,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 21:06:40,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 21:06:40,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 21:06:40,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 21:06:40,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 21:06:40,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 21:06:40,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 21:06:40,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 21:06:40,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 21:06:40,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 21:06:40,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 21:06:40,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 21:06:40,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 21:06:40,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 21:06:40,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 21:06:40,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 21:06:40,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 21:06:40,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 21:06:40,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 21:06:40,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-10 21:06:40,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 21:06:40,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 21:06:40,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 21:06:40,717 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-SemanticLbe.epf [2021-06-10 21:06:40,743 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 21:06:40,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 21:06:40,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 21:06:40,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 21:06:40,746 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 21:06:40,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 21:06:40,746 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 21:06:40,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 21:06:40,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 21:06:40,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 21:06:40,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 21:06:40,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 21:06:40,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 21:06:40,748 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 21:06:40,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 21:06:40,748 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 21:06:40,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 21:06:40,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 21:06:40,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 21:06:40,748 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 21:06:40,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 21:06:40,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 21:06:40,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 21:06:40,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 21:06:40,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 21:06:40,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 21:06:40,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 21:06:40,749 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 21:06:40,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 21:06:41,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 21:06:41,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 21:06:41,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 21:06:41,038 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 21:06:41,039 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 21:06:41,039 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2021-06-10 21:06:41,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad095a859/84e7c353d8bb47acbe6f7c040a9b3074/FLAGdaf327bef [2021-06-10 21:06:41,492 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 21:06:41,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2021-06-10 21:06:41,504 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad095a859/84e7c353d8bb47acbe6f7c040a9b3074/FLAGdaf327bef [2021-06-10 21:06:41,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad095a859/84e7c353d8bb47acbe6f7c040a9b3074 [2021-06-10 21:06:41,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 21:06:41,838 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 21:06:41,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 21:06:41,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 21:06:41,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 21:06:41,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 09:06:41" (1/1) ... [2021-06-10 21:06:41,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b2d800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:06:41, skipping insertion in model container [2021-06-10 21:06:41,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 09:06:41" (1/1) ... [2021-06-10 21:06:41,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 21:06:41,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 21:06:41,985 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.oepc.i[950,963] [2021-06-10 21:06:42,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 21:06:42,117 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 21:06:42,124 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.oepc.i[950,963] [2021-06-10 21:06:42,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 21:06:42,192 INFO L208 MainTranslator]: Completed translation [2021-06-10 21:06:42,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:06:42 WrapperNode [2021-06-10 21:06:42,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 21:06:42,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 21:06:42,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 21:06:42,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 21:06:42,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:06:42" (1/1) ... [2021-06-10 21:06:42,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:06:42" (1/1) ... [2021-06-10 21:06:42,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 21:06:42,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 21:06:42,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 21:06:42,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 21:06:42,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:06:42" (1/1) ... [2021-06-10 21:06:42,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:06:42" (1/1) ... [2021-06-10 21:06:42,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:06:42" (1/1) ... [2021-06-10 21:06:42,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:06:42" (1/1) ... [2021-06-10 21:06:42,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:06:42" (1/1) ... [2021-06-10 21:06:42,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:06:42" (1/1) ... [2021-06-10 21:06:42,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:06:42" (1/1) ... [2021-06-10 21:06:42,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 21:06:42,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 21:06:42,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 21:06:42,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 21:06:42,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:06:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 21:06:42,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 21:06:42,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 21:06:42,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 21:06:42,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 21:06:42,302 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-10 21:06:42,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-10 21:06:42,303 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-10 21:06:42,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-10 21:06:42,303 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-10 21:06:42,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-10 21:06:42,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 21:06:42,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 21:06:42,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 21:06:42,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 21:06:42,304 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 21:06:42,611 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 21:06:42,611 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-10 21:06:42,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 09:06:42 BoogieIcfgContainer [2021-06-10 21:06:42,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 21:06:42,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 21:06:42,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 21:06:42,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 21:06:42,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 09:06:41" (1/3) ... [2021-06-10 21:06:42,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6062330b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 09:06:42, skipping insertion in model container [2021-06-10 21:06:42,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:06:42" (2/3) ... [2021-06-10 21:06:42,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6062330b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 09:06:42, skipping insertion in model container [2021-06-10 21:06:42,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 09:06:42" (3/3) ... [2021-06-10 21:06:42,620 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2021-06-10 21:06:42,624 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 21:06:42,626 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 21:06:42,627 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 21:06:42,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,651 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,651 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,651 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,651 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,653 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,653 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,653 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,653 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,656 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,656 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,657 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,657 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,658 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,659 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,659 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,660 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,660 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,663 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,664 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,669 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,669 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:06:42,672 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 21:06:42,684 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-10 21:06:42,698 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 21:06:42,698 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 21:06:42,698 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 21:06:42,698 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 21:06:42,698 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 21:06:42,698 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 21:06:42,698 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 21:06:42,699 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 21:06:42,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-06-10 21:06:42,728 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-06-10 21:06:42,728 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:06:42,731 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. [2021-06-10 21:06:42,731 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-06-10 21:06:42,733 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-06-10 21:06:42,734 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 21:06:42,742 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-06-10 21:06:42,744 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-06-10 21:06:42,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-06-10 21:06:42,758 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-06-10 21:06:42,758 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:06:42,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-06-10 21:06:42,762 INFO L151 LiptonReduction]: Number of co-enabled transitions 864 [2021-06-10 21:06:42,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:42,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:42,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:42,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:42,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:42,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:06:42,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:42,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:06:42,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:06:42,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:42,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:42,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:42,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:42,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:42,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:42,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:42,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:42,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:42,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:43,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:06:43,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:06:43,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:06:43,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:43,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:43,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:06:43,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:06:43,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:06:43,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:06:43,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:06:43,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:06:43,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:43,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:06:43,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 21:06:43,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:06:43,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:43,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,511 INFO L147 QuantifierPusher]: treesize reduction 29, result has 3.3 percent of original size 1 [2021-06-10 21:06:43,544 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-10 21:06:43,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:43,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:06:43,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:06:43,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:06:43,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:43,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:43,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:43,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:43,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:43,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:43,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:43,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:43,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:06:43,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:43,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:06:43,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:06:44,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:44,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:44,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:44,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:06:44,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:44,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:06:44,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-10 21:06:44,491 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-06-10 21:06:44,689 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-06-10 21:06:44,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:44,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:06:44,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:44,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:06:44,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:06:44,765 INFO L163 LiptonReduction]: Checked pairs total: 1498 [2021-06-10 21:06:44,766 INFO L165 LiptonReduction]: Total number of compositions: 45 [2021-06-10 21:06:44,767 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2034 [2021-06-10 21:06:44,775 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-06-10 21:06:44,776 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:06:44,776 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:06:44,776 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:06:44,776 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:06:44,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:06:44,780 INFO L82 PathProgramCache]: Analyzing trace with hash -875103459, now seen corresponding path program 1 times [2021-06-10 21:06:44,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:06:44,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205640951] [2021-06-10 21:06:44,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:06:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:06:44,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:44,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:44,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:06:44,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205640951] [2021-06-10 21:06:44,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:06:44,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-10 21:06:44,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568552025] [2021-06-10 21:06:44,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 21:06:44,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:06:44,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 21:06:44,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 21:06:44,970 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 119 [2021-06-10 21:06:44,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:44,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:06:44,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 119 [2021-06-10 21:06:44,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:06:44,986 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-06-10 21:06:44,986 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:06:44,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-06-10 21:06:44,987 INFO L132 encePairwiseOnDemand]: 116/119 looper letters, 1 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2021-06-10 21:06:44,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 17 transitions, 49 flow [2021-06-10 21:06:44,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 21:06:44,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 21:06:44,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2021-06-10 21:06:44,999 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8431372549019608 [2021-06-10 21:06:45,000 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2021-06-10 21:06:45,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2021-06-10 21:06:45,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:06:45,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2021-06-10 21:06:45,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,015 INFO L185 Difference]: Start difference. First operand has 27 places, 17 transitions, 43 flow. Second operand 3 states and 301 transitions. [2021-06-10 21:06:45,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 17 transitions, 49 flow [2021-06-10 21:06:45,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 17 transitions, 46 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-10 21:06:45,018 INFO L241 Difference]: Finished difference. Result has 27 places, 17 transitions, 48 flow [2021-06-10 21:06:45,019 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=27, PETRI_TRANSITIONS=17} [2021-06-10 21:06:45,020 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2021-06-10 21:06:45,020 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 48 flow [2021-06-10 21:06:45,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,020 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:06:45,020 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:06:45,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 21:06:45,021 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:06:45,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:06:45,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1358404256, now seen corresponding path program 1 times [2021-06-10 21:06:45,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:06:45,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060333325] [2021-06-10 21:06:45,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:06:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:06:45,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:45,090 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-10 21:06:45,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 21:06:45,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:06:45,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060333325] [2021-06-10 21:06:45,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:06:45,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 21:06:45,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986456279] [2021-06-10 21:06:45,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:06:45,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:06:45,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:06:45,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:06:45,100 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-06-10 21:06:45,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:06:45,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-06-10 21:06:45,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:06:45,140 INFO L129 PetriNetUnfolder]: 40/124 cut-off events. [2021-06-10 21:06:45,140 INFO L130 PetriNetUnfolder]: For 32/53 co-relation queries the response was YES. [2021-06-10 21:06:45,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 124 events. 40/124 cut-off events. For 32/53 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 532 event pairs, 9 based on Foata normal form. 13/131 useless extension candidates. Maximal degree in co-relation 242. Up to 35 conditions per place. [2021-06-10 21:06:45,141 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 11 selfloop transitions, 9 changer transitions 0/29 dead transitions. [2021-06-10 21:06:45,141 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 29 transitions, 118 flow [2021-06-10 21:06:45,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 21:06:45,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 21:06:45,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 362 transitions. [2021-06-10 21:06:45,145 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7605042016806722 [2021-06-10 21:06:45,145 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 362 transitions. [2021-06-10 21:06:45,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 362 transitions. [2021-06-10 21:06:45,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:06:45,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 362 transitions. [2021-06-10 21:06:45,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.5) internal successors, (362), 4 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,149 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,149 INFO L185 Difference]: Start difference. First operand has 27 places, 17 transitions, 48 flow. Second operand 4 states and 362 transitions. [2021-06-10 21:06:45,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 29 transitions, 118 flow [2021-06-10 21:06:45,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 29 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 21:06:45,150 INFO L241 Difference]: Finished difference. Result has 31 places, 25 transitions, 113 flow [2021-06-10 21:06:45,150 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=31, PETRI_TRANSITIONS=25} [2021-06-10 21:06:45,151 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2021-06-10 21:06:45,151 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 113 flow [2021-06-10 21:06:45,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,151 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:06:45,151 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:06:45,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 21:06:45,152 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:06:45,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:06:45,152 INFO L82 PathProgramCache]: Analyzing trace with hash 255529507, now seen corresponding path program 1 times [2021-06-10 21:06:45,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:06:45,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303800009] [2021-06-10 21:06:45,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:06:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:06:45,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:45,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:45,206 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-10 21:06:45,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 21:06:45,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:06:45,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303800009] [2021-06-10 21:06:45,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:06:45,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:06:45,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135725169] [2021-06-10 21:06:45,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 21:06:45,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:06:45,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 21:06:45,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-10 21:06:45,216 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-06-10 21:06:45,217 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 113 flow. Second operand has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,217 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:06:45,217 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-06-10 21:06:45,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:06:45,270 INFO L129 PetriNetUnfolder]: 40/141 cut-off events. [2021-06-10 21:06:45,271 INFO L130 PetriNetUnfolder]: For 109/173 co-relation queries the response was YES. [2021-06-10 21:06:45,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 141 events. 40/141 cut-off events. For 109/173 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 677 event pairs, 12 based on Foata normal form. 8/143 useless extension candidates. Maximal degree in co-relation 412. Up to 45 conditions per place. [2021-06-10 21:06:45,274 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 12 selfloop transitions, 10 changer transitions 6/37 dead transitions. [2021-06-10 21:06:45,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 37 transitions, 226 flow [2021-06-10 21:06:45,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 21:06:45,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 21:06:45,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 450 transitions. [2021-06-10 21:06:45,276 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7563025210084033 [2021-06-10 21:06:45,276 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 450 transitions. [2021-06-10 21:06:45,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 450 transitions. [2021-06-10 21:06:45,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:06:45,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 450 transitions. [2021-06-10 21:06:45,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,278 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,278 INFO L185 Difference]: Start difference. First operand has 31 places, 25 transitions, 113 flow. Second operand 5 states and 450 transitions. [2021-06-10 21:06:45,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 37 transitions, 226 flow [2021-06-10 21:06:45,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-10 21:06:45,280 INFO L241 Difference]: Finished difference. Result has 38 places, 27 transitions, 168 flow [2021-06-10 21:06:45,280 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=168, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2021-06-10 21:06:45,281 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2021-06-10 21:06:45,281 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 168 flow [2021-06-10 21:06:45,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,281 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:06:45,281 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:06:45,281 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 21:06:45,281 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:06:45,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:06:45,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1027924717, now seen corresponding path program 1 times [2021-06-10 21:06:45,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:06:45,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490803326] [2021-06-10 21:06:45,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:06:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:06:45,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:45,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:45,339 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-10 21:06:45,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 21:06:45,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:06:45,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490803326] [2021-06-10 21:06:45,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:06:45,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:06:45,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746949022] [2021-06-10 21:06:45,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:06:45,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:06:45,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:06:45,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:06:45,352 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-06-10 21:06:45,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,353 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:06:45,353 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-06-10 21:06:45,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:06:45,384 INFO L129 PetriNetUnfolder]: 16/77 cut-off events. [2021-06-10 21:06:45,384 INFO L130 PetriNetUnfolder]: For 138/147 co-relation queries the response was YES. [2021-06-10 21:06:45,386 INFO L84 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 77 events. 16/77 cut-off events. For 138/147 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 286 event pairs, 2 based on Foata normal form. 5/82 useless extension candidates. Maximal degree in co-relation 289. Up to 23 conditions per place. [2021-06-10 21:06:45,389 INFO L132 encePairwiseOnDemand]: 112/119 looper letters, 10 selfloop transitions, 13 changer transitions 1/33 dead transitions. [2021-06-10 21:06:45,389 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 256 flow [2021-06-10 21:06:45,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 21:06:45,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 21:06:45,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 357 transitions. [2021-06-10 21:06:45,392 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-06-10 21:06:45,393 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 357 transitions. [2021-06-10 21:06:45,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 357 transitions. [2021-06-10 21:06:45,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:06:45,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 357 transitions. [2021-06-10 21:06:45,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,395 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,395 INFO L185 Difference]: Start difference. First operand has 38 places, 27 transitions, 168 flow. Second operand 4 states and 357 transitions. [2021-06-10 21:06:45,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 256 flow [2021-06-10 21:06:45,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 33 transitions, 233 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-06-10 21:06:45,399 INFO L241 Difference]: Finished difference. Result has 40 places, 31 transitions, 235 flow [2021-06-10 21:06:45,399 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2021-06-10 21:06:45,399 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 13 predicate places. [2021-06-10 21:06:45,400 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 235 flow [2021-06-10 21:06:45,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,400 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:06:45,400 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:06:45,400 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 21:06:45,400 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:06:45,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:06:45,400 INFO L82 PathProgramCache]: Analyzing trace with hash 254981737, now seen corresponding path program 2 times [2021-06-10 21:06:45,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:06:45,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502481721] [2021-06-10 21:06:45,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:06:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:06:45,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:45,437 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-10 21:06:45,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 21:06:45,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:06:45,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502481721] [2021-06-10 21:06:45,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:06:45,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 21:06:45,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576922353] [2021-06-10 21:06:45,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:06:45,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:06:45,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:06:45,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:06:45,445 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-06-10 21:06:45,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:06:45,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-06-10 21:06:45,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:06:45,462 INFO L129 PetriNetUnfolder]: 13/70 cut-off events. [2021-06-10 21:06:45,463 INFO L130 PetriNetUnfolder]: For 142/144 co-relation queries the response was YES. [2021-06-10 21:06:45,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 70 events. 13/70 cut-off events. For 142/144 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 249 event pairs, 0 based on Foata normal form. 3/73 useless extension candidates. Maximal degree in co-relation 291. Up to 23 conditions per place. [2021-06-10 21:06:45,463 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 11 selfloop transitions, 15 changer transitions 0/35 dead transitions. [2021-06-10 21:06:45,463 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 35 transitions, 324 flow [2021-06-10 21:06:45,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 21:06:45,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 21:06:45,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2021-06-10 21:06:45,464 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7542016806722689 [2021-06-10 21:06:45,464 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 359 transitions. [2021-06-10 21:06:45,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 359 transitions. [2021-06-10 21:06:45,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:06:45,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 359 transitions. [2021-06-10 21:06:45,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,466 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,466 INFO L185 Difference]: Start difference. First operand has 40 places, 31 transitions, 235 flow. Second operand 4 states and 359 transitions. [2021-06-10 21:06:45,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 35 transitions, 324 flow [2021-06-10 21:06:45,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 35 transitions, 313 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 21:06:45,468 INFO L241 Difference]: Finished difference. Result has 44 places, 33 transitions, 299 flow [2021-06-10 21:06:45,469 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=299, PETRI_PLACES=44, PETRI_TRANSITIONS=33} [2021-06-10 21:06:45,469 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 17 predicate places. [2021-06-10 21:06:45,469 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 33 transitions, 299 flow [2021-06-10 21:06:45,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,469 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:06:45,469 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:06:45,469 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-10 21:06:45,469 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:06:45,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:06:45,470 INFO L82 PathProgramCache]: Analyzing trace with hash 2033880082, now seen corresponding path program 1 times [2021-06-10 21:06:45,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:06:45,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178160017] [2021-06-10 21:06:45,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:06:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:06:45,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:45,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:45,493 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-10 21:06:45,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 21:06:45,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:06:45,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178160017] [2021-06-10 21:06:45,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:06:45,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:06:45,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247041093] [2021-06-10 21:06:45,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 21:06:45,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:06:45,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 21:06:45,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-10 21:06:45,502 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-06-10 21:06:45,502 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 33 transitions, 299 flow. Second operand has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,502 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:06:45,502 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-06-10 21:06:45,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:06:45,527 INFO L129 PetriNetUnfolder]: 11/71 cut-off events. [2021-06-10 21:06:45,527 INFO L130 PetriNetUnfolder]: For 222/233 co-relation queries the response was YES. [2021-06-10 21:06:45,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 71 events. 11/71 cut-off events. For 222/233 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 291 event pairs, 0 based on Foata normal form. 7/78 useless extension candidates. Maximal degree in co-relation 331. Up to 26 conditions per place. [2021-06-10 21:06:45,527 INFO L132 encePairwiseOnDemand]: 112/119 looper letters, 7 selfloop transitions, 9 changer transitions 17/42 dead transitions. [2021-06-10 21:06:45,527 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 42 transitions, 461 flow [2021-06-10 21:06:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 21:06:45,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 21:06:45,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 444 transitions. [2021-06-10 21:06:45,529 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.746218487394958 [2021-06-10 21:06:45,529 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 444 transitions. [2021-06-10 21:06:45,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 444 transitions. [2021-06-10 21:06:45,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:06:45,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 444 transitions. [2021-06-10 21:06:45,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,530 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,530 INFO L185 Difference]: Start difference. First operand has 44 places, 33 transitions, 299 flow. Second operand 5 states and 444 transitions. [2021-06-10 21:06:45,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 42 transitions, 461 flow [2021-06-10 21:06:45,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 42 transitions, 461 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-10 21:06:45,533 INFO L241 Difference]: Finished difference. Result has 51 places, 25 transitions, 244 flow [2021-06-10 21:06:45,533 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=244, PETRI_PLACES=51, PETRI_TRANSITIONS=25} [2021-06-10 21:06:45,533 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 24 predicate places. [2021-06-10 21:06:45,533 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 25 transitions, 244 flow [2021-06-10 21:06:45,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,534 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:06:45,534 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:06:45,534 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-10 21:06:45,534 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:06:45,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:06:45,534 INFO L82 PathProgramCache]: Analyzing trace with hash -6481994, now seen corresponding path program 1 times [2021-06-10 21:06:45,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:06:45,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544619958] [2021-06-10 21:06:45,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:06:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:06:45,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:06:45,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:45,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:45,557 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-10 21:06:45,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 21:06:45,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:06:45,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544619958] [2021-06-10 21:06:45,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:06:45,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 21:06:45,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495904496] [2021-06-10 21:06:45,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 21:06:45,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:06:45,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 21:06:45,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-10 21:06:45,567 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-06-10 21:06:45,567 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 25 transitions, 244 flow. Second operand has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,567 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:06:45,567 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-06-10 21:06:45,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:06:45,593 INFO L129 PetriNetUnfolder]: 3/35 cut-off events. [2021-06-10 21:06:45,593 INFO L130 PetriNetUnfolder]: For 195/204 co-relation queries the response was YES. [2021-06-10 21:06:45,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 35 events. 3/35 cut-off events. For 195/204 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 78 event pairs, 0 based on Foata normal form. 8/43 useless extension candidates. Maximal degree in co-relation 174. Up to 10 conditions per place. [2021-06-10 21:06:45,594 INFO L132 encePairwiseOnDemand]: 112/119 looper letters, 3 selfloop transitions, 5 changer transitions 10/27 dead transitions. [2021-06-10 21:06:45,594 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 27 transitions, 310 flow [2021-06-10 21:06:45,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-10 21:06:45,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-10 21:06:45,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 524 transitions. [2021-06-10 21:06:45,595 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7338935574229691 [2021-06-10 21:06:45,595 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 524 transitions. [2021-06-10 21:06:45,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 524 transitions. [2021-06-10 21:06:45,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:06:45,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 524 transitions. [2021-06-10 21:06:45,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.33333333333333) internal successors, (524), 6 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,598 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,598 INFO L185 Difference]: Start difference. First operand has 51 places, 25 transitions, 244 flow. Second operand 6 states and 524 transitions. [2021-06-10 21:06:45,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 27 transitions, 310 flow [2021-06-10 21:06:45,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 27 transitions, 248 flow, removed 3 selfloop flow, removed 11 redundant places. [2021-06-10 21:06:45,600 INFO L241 Difference]: Finished difference. Result has 46 places, 17 transitions, 111 flow [2021-06-10 21:06:45,600 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=111, PETRI_PLACES=46, PETRI_TRANSITIONS=17} [2021-06-10 21:06:45,600 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 19 predicate places. [2021-06-10 21:06:45,600 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 17 transitions, 111 flow [2021-06-10 21:06:45,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,601 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:06:45,601 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:06:45,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-10 21:06:45,601 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:06:45,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:06:45,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1830916040, now seen corresponding path program 2 times [2021-06-10 21:06:45,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:06:45,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710566230] [2021-06-10 21:06:45,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:06:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:06:45,641 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-10 21:06:45,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 21:06:45,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:45,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:06:45,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710566230] [2021-06-10 21:06:45,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:06:45,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 21:06:45,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483005746] [2021-06-10 21:06:45,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:06:45,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:06:45,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:06:45,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:06:45,649 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 119 [2021-06-10 21:06:45,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 17 transitions, 111 flow. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 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) [2021-06-10 21:06:45,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:06:45,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 119 [2021-06-10 21:06:45,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:06:45,670 INFO L129 PetriNetUnfolder]: 23/65 cut-off events. [2021-06-10 21:06:45,670 INFO L130 PetriNetUnfolder]: For 145/157 co-relation queries the response was YES. [2021-06-10 21:06:45,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 65 events. 23/65 cut-off events. For 145/157 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 195 event pairs, 5 based on Foata normal form. 4/60 useless extension candidates. Maximal degree in co-relation 172. Up to 27 conditions per place. [2021-06-10 21:06:45,671 INFO L132 encePairwiseOnDemand]: 113/119 looper letters, 6 selfloop transitions, 4 changer transitions 3/24 dead transitions. [2021-06-10 21:06:45,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 24 transitions, 151 flow [2021-06-10 21:06:45,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 21:06:45,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 21:06:45,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 379 transitions. [2021-06-10 21:06:45,672 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7962184873949579 [2021-06-10 21:06:45,672 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 379 transitions. [2021-06-10 21:06:45,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 379 transitions. [2021-06-10 21:06:45,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:06:45,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 379 transitions. [2021-06-10 21:06:45,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,674 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,674 INFO L185 Difference]: Start difference. First operand has 46 places, 17 transitions, 111 flow. Second operand 4 states and 379 transitions. [2021-06-10 21:06:45,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 24 transitions, 151 flow [2021-06-10 21:06:45,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 24 transitions, 94 flow, removed 5 selfloop flow, removed 16 redundant places. [2021-06-10 21:06:45,675 INFO L241 Difference]: Finished difference. Result has 33 places, 19 transitions, 82 flow [2021-06-10 21:06:45,675 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=33, PETRI_TRANSITIONS=19} [2021-06-10 21:06:45,676 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 6 predicate places. [2021-06-10 21:06:45,676 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 19 transitions, 82 flow [2021-06-10 21:06:45,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 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) [2021-06-10 21:06:45,676 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:06:45,676 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:06:45,676 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-10 21:06:45,676 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:06:45,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:06:45,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1053355103, now seen corresponding path program 1 times [2021-06-10 21:06:45,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:06:45,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289629914] [2021-06-10 21:06:45,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:06:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:06:45,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:45,715 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-10 21:06:45,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 21:06:45,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:45,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:06:45,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289629914] [2021-06-10 21:06:45,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:06:45,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:06:45,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972574471] [2021-06-10 21:06:45,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 21:06:45,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:06:45,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 21:06:45,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-10 21:06:45,726 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 119 [2021-06-10 21:06:45,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 19 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:06:45,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 119 [2021-06-10 21:06:45,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:06:45,761 INFO L129 PetriNetUnfolder]: 9/40 cut-off events. [2021-06-10 21:06:45,761 INFO L130 PetriNetUnfolder]: For 42/68 co-relation queries the response was YES. [2021-06-10 21:06:45,761 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 40 events. 9/40 cut-off events. For 42/68 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 85 event pairs, 0 based on Foata normal form. 7/43 useless extension candidates. Maximal degree in co-relation 114. Up to 22 conditions per place. [2021-06-10 21:06:45,761 INFO L132 encePairwiseOnDemand]: 113/119 looper letters, 2 selfloop transitions, 6 changer transitions 7/26 dead transitions. [2021-06-10 21:06:45,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 26 transitions, 141 flow [2021-06-10 21:06:45,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 21:06:45,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 21:06:45,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 472 transitions. [2021-06-10 21:06:45,763 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7932773109243697 [2021-06-10 21:06:45,763 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 472 transitions. [2021-06-10 21:06:45,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 472 transitions. [2021-06-10 21:06:45,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:06:45,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 472 transitions. [2021-06-10 21:06:45,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,765 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,765 INFO L185 Difference]: Start difference. First operand has 33 places, 19 transitions, 82 flow. Second operand 5 states and 472 transitions. [2021-06-10 21:06:45,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 26 transitions, 141 flow [2021-06-10 21:06:45,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 26 transitions, 132 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-06-10 21:06:45,766 INFO L241 Difference]: Finished difference. Result has 37 places, 19 transitions, 100 flow [2021-06-10 21:06:45,766 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=100, PETRI_PLACES=37, PETRI_TRANSITIONS=19} [2021-06-10 21:06:45,766 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2021-06-10 21:06:45,766 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 19 transitions, 100 flow [2021-06-10 21:06:45,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,766 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:06:45,766 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:06:45,766 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-10 21:06:45,767 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:06:45,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:06:45,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1729770709, now seen corresponding path program 1 times [2021-06-10 21:06:45,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:06:45,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087994469] [2021-06-10 21:06:45,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:06:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:06:45,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:45,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:45,801 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-10 21:06:45,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 21:06:45,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:06:45,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:06:45,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:06:45,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087994469] [2021-06-10 21:06:45,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:06:45,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 21:06:45,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853634438] [2021-06-10 21:06:45,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 21:06:45,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:06:45,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 21:06:45,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-10 21:06:45,811 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 119 [2021-06-10 21:06:45,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 19 transitions, 100 flow. Second operand has 6 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,812 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:06:45,812 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 119 [2021-06-10 21:06:45,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:06:45,838 INFO L129 PetriNetUnfolder]: 1/20 cut-off events. [2021-06-10 21:06:45,838 INFO L130 PetriNetUnfolder]: For 37/54 co-relation queries the response was YES. [2021-06-10 21:06:45,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 20 events. 1/20 cut-off events. For 37/54 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 5/25 useless extension candidates. Maximal degree in co-relation 56. Up to 7 conditions per place. [2021-06-10 21:06:45,839 INFO L132 encePairwiseOnDemand]: 113/119 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2021-06-10 21:06:45,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 19 transitions, 110 flow [2021-06-10 21:06:45,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-10 21:06:45,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-10 21:06:45,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2021-06-10 21:06:45,840 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7773109243697479 [2021-06-10 21:06:45,840 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 555 transitions. [2021-06-10 21:06:45,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 555 transitions. [2021-06-10 21:06:45,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:06:45,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 555 transitions. [2021-06-10 21:06:45,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,842 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,842 INFO L185 Difference]: Start difference. First operand has 37 places, 19 transitions, 100 flow. Second operand 6 states and 555 transitions. [2021-06-10 21:06:45,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 19 transitions, 110 flow [2021-06-10 21:06:45,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 19 transitions, 87 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-06-10 21:06:45,843 INFO L241 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2021-06-10 21:06:45,843 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2021-06-10 21:06:45,843 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2021-06-10 21:06:45,843 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2021-06-10 21:06:45,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:06:45,844 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-10 21:06:45,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 09:06:45 BasicIcfg [2021-06-10 21:06:45,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 21:06:45,847 INFO L168 Benchmark]: Toolchain (without parser) took 4009.04 ms. Allocated memory was 337.6 MB in the beginning and 432.0 MB in the end (delta: 94.4 MB). Free memory was 299.4 MB in the beginning and 384.7 MB in the end (delta: -85.3 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.0 GB. [2021-06-10 21:06:45,847 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 337.6 MB. Free memory is still 317.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 21:06:45,847 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.74 ms. Allocated memory is still 337.6 MB. Free memory was 299.3 MB in the beginning and 299.5 MB in the end (delta: -271.1 kB). Peak memory consumption was 4.9 MB. Max. memory is 16.0 GB. [2021-06-10 21:06:45,847 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.93 ms. Allocated memory is still 337.6 MB. Free memory was 299.5 MB in the beginning and 297.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 21:06:45,847 INFO L168 Benchmark]: Boogie Preprocessor took 13.58 ms. Allocated memory is still 337.6 MB. Free memory was 297.4 MB in the beginning and 296.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 21:06:45,847 INFO L168 Benchmark]: RCFGBuilder took 378.06 ms. Allocated memory is still 337.6 MB. Free memory was 296.4 MB in the beginning and 272.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-10 21:06:45,848 INFO L168 Benchmark]: TraceAbstraction took 3229.66 ms. Allocated memory was 337.6 MB in the beginning and 432.0 MB in the end (delta: 94.4 MB). Free memory was 272.3 MB in the beginning and 384.7 MB in the end (delta: -112.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 21:06:45,848 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 337.6 MB. Free memory is still 317.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 352.74 ms. Allocated memory is still 337.6 MB. Free memory was 299.3 MB in the beginning and 299.5 MB in the end (delta: -271.1 kB). Peak memory consumption was 4.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 28.93 ms. Allocated memory is still 337.6 MB. Free memory was 299.5 MB in the beginning and 297.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.58 ms. Allocated memory is still 337.6 MB. Free memory was 297.4 MB in the beginning and 296.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 378.06 ms. Allocated memory is still 337.6 MB. Free memory was 296.4 MB in the beginning and 272.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3229.66 ms. Allocated memory was 337.6 MB in the beginning and 432.0 MB in the end (delta: 94.4 MB). Free memory was 272.3 MB in the beginning and 384.7 MB in the end (delta: -112.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2021.6ms, 68 PlacesBefore, 27 PlacesAfterwards, 59 TransitionsBefore, 17 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 45 TotalNumberOfCompositions, 1498 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 953, positive: 880, positive conditional: 0, positive unconditional: 880, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 599, positive: 558, positive conditional: 0, positive unconditional: 558, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 599, positive: 558, positive conditional: 0, positive unconditional: 558, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 599, positive: 548, positive conditional: 0, positive unconditional: 548, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 51, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 148, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 122, negative conditional: 0, negative unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 953, positive: 322, positive conditional: 0, positive unconditional: 322, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 599, unknown conditional: 0, unknown unconditional: 599] , Statistics on independence cache: Total cache size (in pairs): 956, Positive cache size: 915, Positive conditional cache size: 0, Positive unconditional cache size: 915, Negative cache size: 41, Negative conditional cache size: 0, Negative unconditional cache size: 41 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3148.5ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 415.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2074.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 58 SDtfs, 39 SDslu, 39 SDs, 0 SdLazy, 126 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 94.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 116.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=299occurred in iteration=5, InterpolantAutomatonStates: 46, 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: 22.4ms SsaConstructionTime, 160.1ms SatisfiabilityAnalysisTime, 330.0ms InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 496 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...