/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 05:05:01,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 05:05:01,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 05:05:01,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 05:05:01,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 05:05:01,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 05:05:01,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 05:05:01,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 05:05:01,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 05:05:01,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 05:05:01,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 05:05:01,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 05:05:01,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 05:05:01,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 05:05:01,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 05:05:01,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 05:05:01,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 05:05:01,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 05:05:01,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 05:05:01,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 05:05:01,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 05:05:01,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 05:05:01,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 05:05:01,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 05:05:01,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 05:05:01,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 05:05:01,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 05:05:01,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 05:05:01,886 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-RepeatedVariableLbe.epf [2021-03-25 05:05:01,905 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 05:05:01,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 05:05:01,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 05:05:01,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 05:05:01,907 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 05:05:01,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 05:05:01,908 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 05:05:01,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 05:05:01,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 05:05:01,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 05:05:01,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 05:05:01,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 05:05:01,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 05:05:01,909 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 05:05:01,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 05:05:01,909 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 05:05:01,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 05:05:01,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 05:05:01,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 05:05:01,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 05:05:01,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 05:05:01,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 05:05:01,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 05:05:01,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 05:05:01,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 05:05:01,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 05:05:01,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 05:05:01,911 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 05:05:01,912 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 05:05:01,912 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 05:05:01,912 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 05:05:02,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 05:05:02,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 05:05:02,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 05:05:02,285 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 05:05:02,285 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 05:05:02,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-03-25 05:05:02,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52a6f8361/d3db981dd044464c889ef017fc2fa748/FLAG2520046c2 [2021-03-25 05:05:02,884 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 05:05:02,885 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-03-25 05:05:02,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52a6f8361/d3db981dd044464c889ef017fc2fa748/FLAG2520046c2 [2021-03-25 05:05:03,208 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52a6f8361/d3db981dd044464c889ef017fc2fa748 [2021-03-25 05:05:03,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 05:05:03,212 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 05:05:03,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 05:05:03,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 05:05:03,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 05:05:03,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:05:03" (1/1) ... [2021-03-25 05:05:03,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58529eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:05:03, skipping insertion in model container [2021-03-25 05:05:03,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:05:03" (1/1) ... [2021-03-25 05:05:03,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 05:05:03,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 05:05:03,402 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/safe019_tso.oepc.i[950,963] [2021-03-25 05:05:03,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:05:03,577 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 05:05:03,590 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/safe019_tso.oepc.i[950,963] [2021-03-25 05:05:03,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:05:03,708 INFO L208 MainTranslator]: Completed translation [2021-03-25 05:05:03,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:05:03 WrapperNode [2021-03-25 05:05:03,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 05:05:03,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 05:05:03,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 05:05:03,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 05:05:03,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:05:03" (1/1) ... [2021-03-25 05:05:03,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:05:03" (1/1) ... [2021-03-25 05:05:03,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 05:05:03,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 05:05:03,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 05:05:03,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 05:05:03,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:05:03" (1/1) ... [2021-03-25 05:05:03,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:05:03" (1/1) ... [2021-03-25 05:05:03,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:05:03" (1/1) ... [2021-03-25 05:05:03,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:05:03" (1/1) ... [2021-03-25 05:05:03,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:05:03" (1/1) ... [2021-03-25 05:05:03,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:05:03" (1/1) ... [2021-03-25 05:05:03,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:05:03" (1/1) ... [2021-03-25 05:05:03,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 05:05:03,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 05:05:03,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 05:05:03,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 05:05:03,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:05:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 05:05:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 05:05:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 05:05:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 05:05:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 05:05:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 05:05:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 05:05:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 05:05:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 05:05:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 05:05:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 05:05:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 05:05:03,882 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 05:05:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 05:05:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 05:05:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 05:05:03,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 05:05:03,883 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 05:05:04,236 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 05:05:04,236 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-25 05:05:04,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:05:04 BoogieIcfgContainer [2021-03-25 05:05:04,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 05:05:04,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 05:05:04,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 05:05:04,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 05:05:04,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 05:05:03" (1/3) ... [2021-03-25 05:05:04,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c5dd85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:05:04, skipping insertion in model container [2021-03-25 05:05:04,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:05:03" (2/3) ... [2021-03-25 05:05:04,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c5dd85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:05:04, skipping insertion in model container [2021-03-25 05:05:04,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:05:04" (3/3) ... [2021-03-25 05:05:04,244 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2021-03-25 05:05:04,249 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 05:05:04,253 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 05:05:04,254 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 05:05:04,289 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,289 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,289 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,289 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,290 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,290 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,291 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,291 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,291 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,291 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,291 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,292 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,299 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,300 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,300 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,300 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,300 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,301 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,301 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,301 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,301 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,301 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,301 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,301 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,301 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,301 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,302 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,303 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,304 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,304 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,304 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,309 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,309 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,309 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,309 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,312 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,312 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,312 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,312 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,318 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,318 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,318 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,319 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:05:04,321 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 05:05:04,337 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-25 05:05:04,364 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 05:05:04,364 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 05:05:04,364 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 05:05:04,364 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 05:05:04,364 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 05:05:04,365 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 05:05:04,365 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 05:05:04,365 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 05:05:04,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2021-03-25 05:05:04,435 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-03-25 05:05:04,435 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:05:04,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-25 05:05:04,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 86 transitions, 192 flow [2021-03-25 05:05:04,455 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 68 transitions, 148 flow [2021-03-25 05:05:04,456 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:05:04,464 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 68 transitions, 148 flow [2021-03-25 05:05:04,468 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 68 transitions, 148 flow [2021-03-25 05:05:04,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 68 transitions, 148 flow [2021-03-25 05:05:04,493 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-03-25 05:05:04,493 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:05:04,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 68 events. 1/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-03-25 05:05:04,497 INFO L142 LiptonReduction]: Number of co-enabled transitions 1250 [2021-03-25 05:05:05,932 INFO L154 LiptonReduction]: Checked pairs total: 1269 [2021-03-25 05:05:05,933 INFO L156 LiptonReduction]: Total number of compositions: 43 [2021-03-25 05:05:05,935 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1480 [2021-03-25 05:05:05,944 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-25 05:05:05,944 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:05:05,944 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:05:05,945 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:05:05,945 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:05:05,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:05:05,950 INFO L82 PathProgramCache]: Analyzing trace with hash 2002329809, now seen corresponding path program 1 times [2021-03-25 05:05:05,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:05:05,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898295553] [2021-03-25 05:05:05,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:05:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:05:06,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:06,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:05:06,205 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 05:05:06,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:05:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:05:06,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898295553] [2021-03-25 05:05:06,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:05:06,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:05:06,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662239844] [2021-03-25 05:05:06,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:05:06,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:05:06,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:05:06,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:05:06,242 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 129 [2021-03-25 05:05:06,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:06,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:05:06,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 129 [2021-03-25 05:05:06,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:05:06,294 INFO L129 PetriNetUnfolder]: 45/133 cut-off events. [2021-03-25 05:05:06,294 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:05:06,295 INFO L84 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 133 events. 45/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 575 event pairs, 27 based on Foata normal form. 4/123 useless extension candidates. Maximal degree in co-relation 222. Up to 78 conditions per place. [2021-03-25 05:05:06,297 INFO L132 encePairwiseOnDemand]: 122/129 looper letters, 7 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2021-03-25 05:05:06,297 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 29 transitions, 96 flow [2021-03-25 05:05:06,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:05:06,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:05:06,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 326 transitions. [2021-03-25 05:05:06,309 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8423772609819121 [2021-03-25 05:05:06,310 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 326 transitions. [2021-03-25 05:05:06,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 326 transitions. [2021-03-25 05:05:06,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:05:06,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 326 transitions. [2021-03-25 05:05:06,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:06,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:06,324 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:06,325 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 62 flow. Second operand 3 states and 326 transitions. [2021-03-25 05:05:06,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 29 transitions, 96 flow [2021-03-25 05:05:06,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 29 transitions, 92 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 05:05:06,330 INFO L241 Difference]: Finished difference. Result has 37 places, 29 transitions, 94 flow [2021-03-25 05:05:06,332 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2021-03-25 05:05:06,333 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2021-03-25 05:05:06,333 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:05:06,333 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 29 transitions, 94 flow [2021-03-25 05:05:06,333 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 29 transitions, 94 flow [2021-03-25 05:05:06,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 29 transitions, 94 flow [2021-03-25 05:05:06,348 INFO L129 PetriNetUnfolder]: 45/132 cut-off events. [2021-03-25 05:05:06,348 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 05:05:06,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 132 events. 45/132 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 573 event pairs, 20 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 238. Up to 78 conditions per place. [2021-03-25 05:05:06,350 INFO L142 LiptonReduction]: Number of co-enabled transitions 228 [2021-03-25 05:05:06,807 INFO L154 LiptonReduction]: Checked pairs total: 218 [2021-03-25 05:05:06,807 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 05:05:06,807 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 474 [2021-03-25 05:05:06,808 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 86 flow [2021-03-25 05:05:06,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:06,809 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:05:06,809 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:05:06,809 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 05:05:06,809 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:05:06,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:05:06,810 INFO L82 PathProgramCache]: Analyzing trace with hash 233500185, now seen corresponding path program 1 times [2021-03-25 05:05:06,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:05:06,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871915003] [2021-03-25 05:05:06,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:05:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:05:06,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:06,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:05:06,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:06,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:06,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:06,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:06,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:05:06,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871915003] [2021-03-25 05:05:06,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:05:06,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:05:06,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919298122] [2021-03-25 05:05:06,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:05:06,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:05:06,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:05:06,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:05:06,873 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 133 [2021-03-25 05:05:06,874 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:06,874 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:05:06,874 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 133 [2021-03-25 05:05:06,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:05:06,911 INFO L129 PetriNetUnfolder]: 25/102 cut-off events. [2021-03-25 05:05:06,912 INFO L130 PetriNetUnfolder]: For 37/66 co-relation queries the response was YES. [2021-03-25 05:05:06,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 102 events. 25/102 cut-off events. For 37/66 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 456 event pairs, 10 based on Foata normal form. 11/109 useless extension candidates. Maximal degree in co-relation 222. Up to 57 conditions per place. [2021-03-25 05:05:06,916 INFO L132 encePairwiseOnDemand]: 127/133 looper letters, 5 selfloop transitions, 7 changer transitions 3/32 dead transitions. [2021-03-25 05:05:06,916 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 148 flow [2021-03-25 05:05:06,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:05:06,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:05:06,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 461 transitions. [2021-03-25 05:05:06,922 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8665413533834586 [2021-03-25 05:05:06,922 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 461 transitions. [2021-03-25 05:05:06,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 461 transitions. [2021-03-25 05:05:06,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:05:06,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 461 transitions. [2021-03-25 05:05:06,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:06,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:06,928 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:06,928 INFO L185 Difference]: Start difference. First operand has 33 places, 25 transitions, 86 flow. Second operand 4 states and 461 transitions. [2021-03-25 05:05:06,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 148 flow [2021-03-25 05:05:06,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 05:05:06,930 INFO L241 Difference]: Finished difference. Result has 37 places, 28 transitions, 127 flow [2021-03-25 05:05:06,930 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2021-03-25 05:05:06,931 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2021-03-25 05:05:06,931 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:05:06,931 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 28 transitions, 127 flow [2021-03-25 05:05:06,932 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 28 transitions, 127 flow [2021-03-25 05:05:06,932 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 28 transitions, 127 flow [2021-03-25 05:05:06,942 INFO L129 PetriNetUnfolder]: 16/73 cut-off events. [2021-03-25 05:05:06,942 INFO L130 PetriNetUnfolder]: For 34/39 co-relation queries the response was YES. [2021-03-25 05:05:06,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 73 events. 16/73 cut-off events. For 34/39 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 264 event pairs, 7 based on Foata normal form. 1/74 useless extension candidates. Maximal degree in co-relation 160. Up to 37 conditions per place. [2021-03-25 05:05:06,943 INFO L142 LiptonReduction]: Number of co-enabled transitions 180 [2021-03-25 05:05:07,107 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-25 05:05:07,336 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-25 05:05:07,409 INFO L154 LiptonReduction]: Checked pairs total: 162 [2021-03-25 05:05:07,409 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:05:07,409 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 478 [2021-03-25 05:05:07,410 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 123 flow [2021-03-25 05:05:07,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,410 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:05:07,410 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:05:07,410 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 05:05:07,411 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:05:07,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:05:07,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1255603798, now seen corresponding path program 1 times [2021-03-25 05:05:07,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:05:07,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533305956] [2021-03-25 05:05:07,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:05:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:05:07,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:07,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:05:07,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:07,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:07,458 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 05:05:07,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:05:07,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:05:07,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533305956] [2021-03-25 05:05:07,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:05:07,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:05:07,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294488712] [2021-03-25 05:05:07,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:05:07,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:05:07,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:05:07,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:05:07,470 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 134 [2021-03-25 05:05:07,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:05:07,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 134 [2021-03-25 05:05:07,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:05:07,493 INFO L129 PetriNetUnfolder]: 13/64 cut-off events. [2021-03-25 05:05:07,494 INFO L130 PetriNetUnfolder]: For 40/52 co-relation queries the response was YES. [2021-03-25 05:05:07,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 64 events. 13/64 cut-off events. For 40/52 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 208 event pairs, 6 based on Foata normal form. 7/71 useless extension candidates. Maximal degree in co-relation 180. Up to 32 conditions per place. [2021-03-25 05:05:07,495 INFO L132 encePairwiseOnDemand]: 127/134 looper letters, 8 selfloop transitions, 8 changer transitions 0/29 dead transitions. [2021-03-25 05:05:07,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 29 transitions, 166 flow [2021-03-25 05:05:07,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:05:07,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:05:07,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 434 transitions. [2021-03-25 05:05:07,497 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8097014925373134 [2021-03-25 05:05:07,497 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 434 transitions. [2021-03-25 05:05:07,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 434 transitions. [2021-03-25 05:05:07,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:05:07,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 434 transitions. [2021-03-25 05:05:07,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,500 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,500 INFO L185 Difference]: Start difference. First operand has 36 places, 27 transitions, 123 flow. Second operand 4 states and 434 transitions. [2021-03-25 05:05:07,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 29 transitions, 166 flow [2021-03-25 05:05:07,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 29 transitions, 156 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 05:05:07,502 INFO L241 Difference]: Finished difference. Result has 38 places, 27 transitions, 136 flow [2021-03-25 05:05:07,502 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=115, 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=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2021-03-25 05:05:07,502 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2021-03-25 05:05:07,503 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:05:07,503 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 27 transitions, 136 flow [2021-03-25 05:05:07,503 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 27 transitions, 136 flow [2021-03-25 05:05:07,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 27 transitions, 136 flow [2021-03-25 05:05:07,508 INFO L129 PetriNetUnfolder]: 13/61 cut-off events. [2021-03-25 05:05:07,508 INFO L130 PetriNetUnfolder]: For 49/50 co-relation queries the response was YES. [2021-03-25 05:05:07,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 61 events. 13/61 cut-off events. For 49/50 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 203 event pairs, 8 based on Foata normal form. 1/62 useless extension candidates. Maximal degree in co-relation 160. Up to 32 conditions per place. [2021-03-25 05:05:07,510 INFO L142 LiptonReduction]: Number of co-enabled transitions 180 [2021-03-25 05:05:07,511 INFO L154 LiptonReduction]: Checked pairs total: 105 [2021-03-25 05:05:07,512 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:05:07,512 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 05:05:07,513 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 136 flow [2021-03-25 05:05:07,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,513 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:05:07,513 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:05:07,513 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 05:05:07,513 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:05:07,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:05:07,514 INFO L82 PathProgramCache]: Analyzing trace with hash -492853645, now seen corresponding path program 1 times [2021-03-25 05:05:07,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:05:07,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083668019] [2021-03-25 05:05:07,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:05:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:05:07,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:07,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:05:07,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:07,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:07,569 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 05:05:07,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:05:07,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:05:07,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083668019] [2021-03-25 05:05:07,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:05:07,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:05:07,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122743677] [2021-03-25 05:05:07,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:05:07,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:05:07,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:05:07,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:05:07,580 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 134 [2021-03-25 05:05:07,581 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,581 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:05:07,581 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 134 [2021-03-25 05:05:07,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:05:07,604 INFO L129 PetriNetUnfolder]: 8/60 cut-off events. [2021-03-25 05:05:07,604 INFO L130 PetriNetUnfolder]: For 84/115 co-relation queries the response was YES. [2021-03-25 05:05:07,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 60 events. 8/60 cut-off events. For 84/115 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 196 event pairs, 1 based on Foata normal form. 15/75 useless extension candidates. Maximal degree in co-relation 180. Up to 28 conditions per place. [2021-03-25 05:05:07,605 INFO L132 encePairwiseOnDemand]: 129/134 looper letters, 8 selfloop transitions, 7 changer transitions 0/28 dead transitions. [2021-03-25 05:05:07,605 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 28 transitions, 170 flow [2021-03-25 05:05:07,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:05:07,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:05:07,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 433 transitions. [2021-03-25 05:05:07,607 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8078358208955224 [2021-03-25 05:05:07,607 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 433 transitions. [2021-03-25 05:05:07,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 433 transitions. [2021-03-25 05:05:07,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:05:07,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 433 transitions. [2021-03-25 05:05:07,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,610 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,611 INFO L185 Difference]: Start difference. First operand has 38 places, 27 transitions, 136 flow. Second operand 4 states and 433 transitions. [2021-03-25 05:05:07,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 28 transitions, 170 flow [2021-03-25 05:05:07,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 28 transitions, 157 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 05:05:07,613 INFO L241 Difference]: Finished difference. Result has 40 places, 27 transitions, 143 flow [2021-03-25 05:05:07,613 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=143, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2021-03-25 05:05:07,613 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 2 predicate places. [2021-03-25 05:05:07,613 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:05:07,613 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 27 transitions, 143 flow [2021-03-25 05:05:07,614 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 27 transitions, 143 flow [2021-03-25 05:05:07,614 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 27 transitions, 143 flow [2021-03-25 05:05:07,618 INFO L129 PetriNetUnfolder]: 8/60 cut-off events. [2021-03-25 05:05:07,619 INFO L130 PetriNetUnfolder]: For 74/81 co-relation queries the response was YES. [2021-03-25 05:05:07,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 60 events. 8/60 cut-off events. For 74/81 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 193 event pairs, 3 based on Foata normal form. 2/62 useless extension candidates. Maximal degree in co-relation 155. Up to 28 conditions per place. [2021-03-25 05:05:07,620 INFO L142 LiptonReduction]: Number of co-enabled transitions 180 [2021-03-25 05:05:07,622 INFO L154 LiptonReduction]: Checked pairs total: 105 [2021-03-25 05:05:07,622 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:05:07,622 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 05:05:07,623 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 143 flow [2021-03-25 05:05:07,623 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,623 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:05:07,623 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:05:07,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 05:05:07,624 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:05:07,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:05:07,624 INFO L82 PathProgramCache]: Analyzing trace with hash 276880125, now seen corresponding path program 1 times [2021-03-25 05:05:07,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:05:07,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253434242] [2021-03-25 05:05:07,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:05:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:05:07,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:07,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:07,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:07,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:07,671 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 05:05:07,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:05:07,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:05:07,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253434242] [2021-03-25 05:05:07,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:05:07,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:05:07,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702282210] [2021-03-25 05:05:07,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:05:07,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:05:07,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:05:07,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:05:07,690 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 134 [2021-03-25 05:05:07,691 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 143 flow. Second operand has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,691 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:05:07,692 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 134 [2021-03-25 05:05:07,692 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:05:07,742 INFO L129 PetriNetUnfolder]: 34/145 cut-off events. [2021-03-25 05:05:07,742 INFO L130 PetriNetUnfolder]: For 284/349 co-relation queries the response was YES. [2021-03-25 05:05:07,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 145 events. 34/145 cut-off events. For 284/349 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 767 event pairs, 3 based on Foata normal form. 18/163 useless extension candidates. Maximal degree in co-relation 437. Up to 61 conditions per place. [2021-03-25 05:05:07,744 INFO L132 encePairwiseOnDemand]: 126/134 looper letters, 11 selfloop transitions, 9 changer transitions 16/48 dead transitions. [2021-03-25 05:05:07,744 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 48 transitions, 371 flow [2021-03-25 05:05:07,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:05:07,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:05:07,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 527 transitions. [2021-03-25 05:05:07,746 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7865671641791044 [2021-03-25 05:05:07,746 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 527 transitions. [2021-03-25 05:05:07,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 527 transitions. [2021-03-25 05:05:07,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:05:07,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 527 transitions. [2021-03-25 05:05:07,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,750 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,751 INFO L185 Difference]: Start difference. First operand has 40 places, 27 transitions, 143 flow. Second operand 5 states and 527 transitions. [2021-03-25 05:05:07,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 48 transitions, 371 flow [2021-03-25 05:05:07,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 48 transitions, 328 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-03-25 05:05:07,757 INFO L241 Difference]: Finished difference. Result has 44 places, 27 transitions, 153 flow [2021-03-25 05:05:07,757 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=153, PETRI_PLACES=44, PETRI_TRANSITIONS=27} [2021-03-25 05:05:07,757 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 6 predicate places. [2021-03-25 05:05:07,757 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:05:07,757 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 27 transitions, 153 flow [2021-03-25 05:05:07,757 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 27 transitions, 153 flow [2021-03-25 05:05:07,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 27 transitions, 153 flow [2021-03-25 05:05:07,765 INFO L129 PetriNetUnfolder]: 8/58 cut-off events. [2021-03-25 05:05:07,765 INFO L130 PetriNetUnfolder]: For 93/97 co-relation queries the response was YES. [2021-03-25 05:05:07,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 58 events. 8/58 cut-off events. For 93/97 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 187 event pairs, 5 based on Foata normal form. 1/59 useless extension candidates. Maximal degree in co-relation 169. Up to 28 conditions per place. [2021-03-25 05:05:07,766 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-25 05:05:07,768 INFO L154 LiptonReduction]: Checked pairs total: 94 [2021-03-25 05:05:07,768 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:05:07,768 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 05:05:07,772 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 27 transitions, 153 flow [2021-03-25 05:05:07,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,773 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:05:07,773 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:05:07,773 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 05:05:07,773 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:05:07,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:05:07,774 INFO L82 PathProgramCache]: Analyzing trace with hash -250288647, now seen corresponding path program 1 times [2021-03-25 05:05:07,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:05:07,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324532628] [2021-03-25 05:05:07,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:05:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:05:07,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:07,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:07,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:07,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:05:07,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:05:07,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324532628] [2021-03-25 05:05:07,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:05:07,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:05:07,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739406828] [2021-03-25 05:05:07,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:05:07,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:05:07,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:05:07,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:05:07,829 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2021-03-25 05:05:07,829 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 27 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,829 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:05:07,829 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2021-03-25 05:05:07,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:05:07,897 INFO L129 PetriNetUnfolder]: 206/394 cut-off events. [2021-03-25 05:05:07,897 INFO L130 PetriNetUnfolder]: For 483/509 co-relation queries the response was YES. [2021-03-25 05:05:07,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 978 conditions, 394 events. 206/394 cut-off events. For 483/509 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 2118 event pairs, 105 based on Foata normal form. 3/340 useless extension candidates. Maximal degree in co-relation 961. Up to 326 conditions per place. [2021-03-25 05:05:07,901 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 5 selfloop transitions, 5 changer transitions 0/31 dead transitions. [2021-03-25 05:05:07,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 31 transitions, 181 flow [2021-03-25 05:05:07,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:05:07,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:05:07,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2021-03-25 05:05:07,903 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8482587064676617 [2021-03-25 05:05:07,903 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 341 transitions. [2021-03-25 05:05:07,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 341 transitions. [2021-03-25 05:05:07,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:05:07,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 341 transitions. [2021-03-25 05:05:07,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,905 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,905 INFO L185 Difference]: Start difference. First operand has 44 places, 27 transitions, 153 flow. Second operand 3 states and 341 transitions. [2021-03-25 05:05:07,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 31 transitions, 181 flow [2021-03-25 05:05:07,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 31 transitions, 157 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-03-25 05:05:07,909 INFO L241 Difference]: Finished difference. Result has 42 places, 31 transitions, 162 flow [2021-03-25 05:05:07,910 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2021-03-25 05:05:07,910 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2021-03-25 05:05:07,910 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:05:07,910 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 31 transitions, 162 flow [2021-03-25 05:05:07,910 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 31 transitions, 162 flow [2021-03-25 05:05:07,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 31 transitions, 162 flow [2021-03-25 05:05:07,945 INFO L129 PetriNetUnfolder]: 219/425 cut-off events. [2021-03-25 05:05:07,945 INFO L130 PetriNetUnfolder]: For 383/440 co-relation queries the response was YES. [2021-03-25 05:05:07,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1047 conditions, 425 events. 219/425 cut-off events. For 383/440 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2361 event pairs, 111 based on Foata normal form. 1/380 useless extension candidates. Maximal degree in co-relation 1033. Up to 338 conditions per place. [2021-03-25 05:05:07,950 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-25 05:05:07,953 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 05:05:07,953 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:05:07,953 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-03-25 05:05:07,955 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 162 flow [2021-03-25 05:05:07,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:07,955 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:05:07,957 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:05:07,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 05:05:07,957 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:05:07,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:05:07,963 INFO L82 PathProgramCache]: Analyzing trace with hash 830977235, now seen corresponding path program 1 times [2021-03-25 05:05:07,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:05:07,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285150430] [2021-03-25 05:05:07,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:05:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:05:08,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:08,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:08,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:05:08,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:05:08,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285150430] [2021-03-25 05:05:08,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:05:08,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:05:08,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655666890] [2021-03-25 05:05:08,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:05:08,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:05:08,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:05:08,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:05:08,040 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2021-03-25 05:05:08,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,041 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:05:08,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2021-03-25 05:05:08,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:05:08,082 INFO L129 PetriNetUnfolder]: 137/291 cut-off events. [2021-03-25 05:05:08,083 INFO L130 PetriNetUnfolder]: For 283/491 co-relation queries the response was YES. [2021-03-25 05:05:08,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 941 conditions, 291 events. 137/291 cut-off events. For 283/491 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1440 event pairs, 33 based on Foata normal form. 45/314 useless extension candidates. Maximal degree in co-relation 925. Up to 232 conditions per place. [2021-03-25 05:05:08,086 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 5 selfloop transitions, 9 changer transitions 0/35 dead transitions. [2021-03-25 05:05:08,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 35 transitions, 206 flow [2021-03-25 05:05:08,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:05:08,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:05:08,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2021-03-25 05:05:08,087 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8488805970149254 [2021-03-25 05:05:08,088 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2021-03-25 05:05:08,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2021-03-25 05:05:08,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:05:08,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2021-03-25 05:05:08,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,092 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,092 INFO L185 Difference]: Start difference. First operand has 42 places, 31 transitions, 162 flow. Second operand 4 states and 455 transitions. [2021-03-25 05:05:08,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 35 transitions, 206 flow [2021-03-25 05:05:08,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 201 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 05:05:08,094 INFO L241 Difference]: Finished difference. Result has 45 places, 35 transitions, 209 flow [2021-03-25 05:05:08,095 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=209, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2021-03-25 05:05:08,095 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2021-03-25 05:05:08,095 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:05:08,095 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 35 transitions, 209 flow [2021-03-25 05:05:08,095 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 35 transitions, 209 flow [2021-03-25 05:05:08,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 35 transitions, 209 flow [2021-03-25 05:05:08,124 INFO L129 PetriNetUnfolder]: 146/310 cut-off events. [2021-03-25 05:05:08,124 INFO L130 PetriNetUnfolder]: For 321/440 co-relation queries the response was YES. [2021-03-25 05:05:08,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1045 conditions, 310 events. 146/310 cut-off events. For 321/440 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1638 event pairs, 33 based on Foata normal form. 8/295 useless extension candidates. Maximal degree in co-relation 1029. Up to 247 conditions per place. [2021-03-25 05:05:08,128 INFO L142 LiptonReduction]: Number of co-enabled transitions 246 [2021-03-25 05:05:08,132 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 05:05:08,132 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:05:08,132 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-25 05:05:08,135 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 209 flow [2021-03-25 05:05:08,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,135 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:05:08,135 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:05:08,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 05:05:08,136 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:05:08,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:05:08,136 INFO L82 PathProgramCache]: Analyzing trace with hash -2076867520, now seen corresponding path program 1 times [2021-03-25 05:05:08,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:05:08,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329706234] [2021-03-25 05:05:08,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:05:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:05:08,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:08,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:08,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:08,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:05:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:05:08,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329706234] [2021-03-25 05:05:08,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:05:08,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 05:05:08,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161520383] [2021-03-25 05:05:08,219 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:05:08,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:05:08,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:05:08,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:05:08,220 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2021-03-25 05:05:08,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 209 flow. Second operand has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:05:08,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2021-03-25 05:05:08,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:05:08,288 INFO L129 PetriNetUnfolder]: 82/191 cut-off events. [2021-03-25 05:05:08,288 INFO L130 PetriNetUnfolder]: For 306/704 co-relation queries the response was YES. [2021-03-25 05:05:08,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 191 events. 82/191 cut-off events. For 306/704 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 831 event pairs, 4 based on Foata normal form. 88/264 useless extension candidates. Maximal degree in co-relation 777. Up to 151 conditions per place. [2021-03-25 05:05:08,290 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 5 selfloop transitions, 13 changer transitions 0/39 dead transitions. [2021-03-25 05:05:08,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 39 transitions, 269 flow [2021-03-25 05:05:08,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:05:08,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:05:08,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 569 transitions. [2021-03-25 05:05:08,292 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8492537313432836 [2021-03-25 05:05:08,292 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 569 transitions. [2021-03-25 05:05:08,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 569 transitions. [2021-03-25 05:05:08,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:05:08,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 569 transitions. [2021-03-25 05:05:08,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,296 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,296 INFO L185 Difference]: Start difference. First operand has 45 places, 35 transitions, 209 flow. Second operand 5 states and 569 transitions. [2021-03-25 05:05:08,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 39 transitions, 269 flow [2021-03-25 05:05:08,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 39 transitions, 251 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-03-25 05:05:08,300 INFO L241 Difference]: Finished difference. Result has 48 places, 39 transitions, 259 flow [2021-03-25 05:05:08,300 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=259, PETRI_PLACES=48, PETRI_TRANSITIONS=39} [2021-03-25 05:05:08,301 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 10 predicate places. [2021-03-25 05:05:08,301 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:05:08,301 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 39 transitions, 259 flow [2021-03-25 05:05:08,301 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 39 transitions, 259 flow [2021-03-25 05:05:08,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 39 transitions, 259 flow [2021-03-25 05:05:08,318 INFO L129 PetriNetUnfolder]: 87/201 cut-off events. [2021-03-25 05:05:08,318 INFO L130 PetriNetUnfolder]: For 357/443 co-relation queries the response was YES. [2021-03-25 05:05:08,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 784 conditions, 201 events. 87/201 cut-off events. For 357/443 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 988 event pairs, 5 based on Foata normal form. 14/202 useless extension candidates. Maximal degree in co-relation 767. Up to 146 conditions per place. [2021-03-25 05:05:08,321 INFO L142 LiptonReduction]: Number of co-enabled transitions 242 [2021-03-25 05:05:08,324 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 05:05:08,324 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:05:08,324 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-25 05:05:08,326 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 259 flow [2021-03-25 05:05:08,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,326 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:05:08,326 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:05:08,326 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 05:05:08,326 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:05:08,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:05:08,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1524939557, now seen corresponding path program 1 times [2021-03-25 05:05:08,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:05:08,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877255610] [2021-03-25 05:05:08,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:05:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:05:08,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:08,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:08,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:08,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:08,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:05:08,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:05:08,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877255610] [2021-03-25 05:05:08,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:05:08,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:05:08,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063840900] [2021-03-25 05:05:08,402 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:05:08,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:05:08,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:05:08,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:05:08,403 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2021-03-25 05:05:08,404 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 259 flow. Second operand has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 6 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,404 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:05:08,404 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2021-03-25 05:05:08,404 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:05:08,459 INFO L129 PetriNetUnfolder]: 69/155 cut-off events. [2021-03-25 05:05:08,459 INFO L130 PetriNetUnfolder]: For 484/863 co-relation queries the response was YES. [2021-03-25 05:05:08,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 714 conditions, 155 events. 69/155 cut-off events. For 484/863 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 618 event pairs, 0 based on Foata normal form. 100/240 useless extension candidates. Maximal degree in co-relation 695. Up to 109 conditions per place. [2021-03-25 05:05:08,461 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 1 selfloop transitions, 17 changer transitions 5/39 dead transitions. [2021-03-25 05:05:08,461 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 39 transitions, 295 flow [2021-03-25 05:05:08,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:05:08,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:05:08,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 679 transitions. [2021-03-25 05:05:08,463 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8445273631840796 [2021-03-25 05:05:08,463 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 679 transitions. [2021-03-25 05:05:08,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 679 transitions. [2021-03-25 05:05:08,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:05:08,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 679 transitions. [2021-03-25 05:05:08,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 113.16666666666667) internal successors, (679), 6 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,468 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,468 INFO L185 Difference]: Start difference. First operand has 48 places, 39 transitions, 259 flow. Second operand 6 states and 679 transitions. [2021-03-25 05:05:08,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 39 transitions, 295 flow [2021-03-25 05:05:08,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 39 transitions, 247 flow, removed 11 selfloop flow, removed 5 redundant places. [2021-03-25 05:05:08,472 INFO L241 Difference]: Finished difference. Result has 49 places, 34 transitions, 224 flow [2021-03-25 05:05:08,472 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=49, PETRI_TRANSITIONS=34} [2021-03-25 05:05:08,472 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 11 predicate places. [2021-03-25 05:05:08,472 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:05:08,472 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 34 transitions, 224 flow [2021-03-25 05:05:08,473 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 34 transitions, 224 flow [2021-03-25 05:05:08,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 34 transitions, 224 flow [2021-03-25 05:05:08,477 INFO L129 PetriNetUnfolder]: 23/60 cut-off events. [2021-03-25 05:05:08,478 INFO L130 PetriNetUnfolder]: For 86/100 co-relation queries the response was YES. [2021-03-25 05:05:08,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 60 events. 23/60 cut-off events. For 86/100 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 151 event pairs, 0 based on Foata normal form. 1/57 useless extension candidates. Maximal degree in co-relation 199. Up to 22 conditions per place. [2021-03-25 05:05:08,479 INFO L142 LiptonReduction]: Number of co-enabled transitions 138 [2021-03-25 05:05:08,673 INFO L154 LiptonReduction]: Checked pairs total: 32 [2021-03-25 05:05:08,673 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 05:05:08,673 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 201 [2021-03-25 05:05:08,673 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 32 transitions, 227 flow [2021-03-25 05:05:08,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 6 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,674 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:05:08,674 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:05:08,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 05:05:08,674 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:05:08,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:05:08,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1861206200, now seen corresponding path program 1 times [2021-03-25 05:05:08,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:05:08,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364752009] [2021-03-25 05:05:08,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:05:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:05:08,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:05:08,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:08,703 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 05:05:08,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:05:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:05:08,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364752009] [2021-03-25 05:05:08,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:05:08,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:05:08,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730618317] [2021-03-25 05:05:08,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:05:08,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:05:08,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:05:08,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:05:08,717 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 139 [2021-03-25 05:05:08,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 32 transitions, 227 flow. Second operand has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:05:08,718 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 139 [2021-03-25 05:05:08,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:05:08,757 INFO L129 PetriNetUnfolder]: 40/101 cut-off events. [2021-03-25 05:05:08,757 INFO L130 PetriNetUnfolder]: For 308/356 co-relation queries the response was YES. [2021-03-25 05:05:08,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 101 events. 40/101 cut-off events. For 308/356 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 363 event pairs, 0 based on Foata normal form. 11/107 useless extension candidates. Maximal degree in co-relation 375. Up to 37 conditions per place. [2021-03-25 05:05:08,758 INFO L132 encePairwiseOnDemand]: 131/139 looper letters, 4 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2021-03-25 05:05:08,758 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 33 transitions, 257 flow [2021-03-25 05:05:08,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:05:08,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:05:08,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 517 transitions. [2021-03-25 05:05:08,760 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7438848920863309 [2021-03-25 05:05:08,760 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 517 transitions. [2021-03-25 05:05:08,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 517 transitions. [2021-03-25 05:05:08,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:05:08,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 517 transitions. [2021-03-25 05:05:08,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,764 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,764 INFO L185 Difference]: Start difference. First operand has 47 places, 32 transitions, 227 flow. Second operand 5 states and 517 transitions. [2021-03-25 05:05:08,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 33 transitions, 257 flow [2021-03-25 05:05:08,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 33 transitions, 198 flow, removed 12 selfloop flow, removed 7 redundant places. [2021-03-25 05:05:08,767 INFO L241 Difference]: Finished difference. Result has 45 places, 33 transitions, 201 flow [2021-03-25 05:05:08,767 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=201, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2021-03-25 05:05:08,768 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2021-03-25 05:05:08,768 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:05:08,768 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 33 transitions, 201 flow [2021-03-25 05:05:08,768 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 33 transitions, 201 flow [2021-03-25 05:05:08,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 33 transitions, 201 flow [2021-03-25 05:05:08,778 INFO L129 PetriNetUnfolder]: 40/101 cut-off events. [2021-03-25 05:05:08,778 INFO L130 PetriNetUnfolder]: For 144/155 co-relation queries the response was YES. [2021-03-25 05:05:08,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 101 events. 40/101 cut-off events. For 144/155 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 359 event pairs, 0 based on Foata normal form. 5/104 useless extension candidates. Maximal degree in co-relation 313. Up to 29 conditions per place. [2021-03-25 05:05:08,779 INFO L142 LiptonReduction]: Number of co-enabled transitions 114 [2021-03-25 05:05:08,781 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 05:05:08,781 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:05:08,781 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-25 05:05:08,782 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 201 flow [2021-03-25 05:05:08,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,783 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:05:08,783 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:05:08,784 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 05:05:08,784 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:05:08,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:05:08,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1811280159, now seen corresponding path program 1 times [2021-03-25 05:05:08,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:05:08,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525593132] [2021-03-25 05:05:08,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:05:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:05:08,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:05:08,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:08,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:05:08,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:05:08,841 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 05:05:08,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:05:08,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:05:08,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525593132] [2021-03-25 05:05:08,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:05:08,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 05:05:08,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882215023] [2021-03-25 05:05:08,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:05:08,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:05:08,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:05:08,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:05:08,854 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 139 [2021-03-25 05:05:08,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 201 flow. Second operand has 5 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,854 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:05:08,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 139 [2021-03-25 05:05:08,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:05:08,881 INFO L129 PetriNetUnfolder]: 49/120 cut-off events. [2021-03-25 05:05:08,882 INFO L130 PetriNetUnfolder]: For 188/216 co-relation queries the response was YES. [2021-03-25 05:05:08,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 120 events. 49/120 cut-off events. For 188/216 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 464 event pairs, 0 based on Foata normal form. 7/122 useless extension candidates. Maximal degree in co-relation 385. Up to 37 conditions per place. [2021-03-25 05:05:08,882 INFO L132 encePairwiseOnDemand]: 133/139 looper letters, 0 selfloop transitions, 0 changer transitions 33/33 dead transitions. [2021-03-25 05:05:08,882 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 33 transitions, 212 flow [2021-03-25 05:05:08,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:05:08,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:05:08,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 646 transitions. [2021-03-25 05:05:08,885 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7745803357314148 [2021-03-25 05:05:08,885 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 646 transitions. [2021-03-25 05:05:08,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 646 transitions. [2021-03-25 05:05:08,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:05:08,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 646 transitions. [2021-03-25 05:05:08,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.66666666666667) internal successors, (646), 6 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,889 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,889 INFO L185 Difference]: Start difference. First operand has 45 places, 33 transitions, 201 flow. Second operand 6 states and 646 transitions. [2021-03-25 05:05:08,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 33 transitions, 212 flow [2021-03-25 05:05:08,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 33 transitions, 174 flow, removed 0 selfloop flow, removed 7 redundant places. [2021-03-25 05:05:08,892 INFO L241 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2021-03-25 05:05:08,892 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2021-03-25 05:05:08,892 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2021-03-25 05:05:08,893 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:05:08,893 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 0 transitions, 0 flow [2021-03-25 05:05:08,893 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 0 transitions, 0 flow [2021-03-25 05:05:08,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 05:05:08,893 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 05:05:08,893 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:05:08,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-25 05:05:08,893 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 05:05:08,894 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 05:05:08,894 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:05:08,894 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 05:05:08,894 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 05:05:08,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:05:08,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 05:05:08,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 05:05:08 BasicIcfg [2021-03-25 05:05:08,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 05:05:08,899 INFO L168 Benchmark]: Toolchain (without parser) took 5686.34 ms. Allocated memory was 255.9 MB in the beginning and 427.8 MB in the end (delta: 172.0 MB). Free memory was 233.8 MB in the beginning and 264.6 MB in the end (delta: -30.8 MB). Peak memory consumption was 142.2 MB. Max. memory is 16.0 GB. [2021-03-25 05:05:08,899 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 05:05:08,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.80 ms. Allocated memory was 255.9 MB in the beginning and 356.5 MB in the end (delta: 100.7 MB). Free memory was 233.8 MB in the beginning and 320.3 MB in the end (delta: -86.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-25 05:05:08,899 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.24 ms. Allocated memory is still 356.5 MB. Free memory was 320.3 MB in the beginning and 318.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:05:08,900 INFO L168 Benchmark]: Boogie Preprocessor took 40.12 ms. Allocated memory is still 356.5 MB. Free memory was 318.2 MB in the beginning and 317.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:05:08,900 INFO L168 Benchmark]: RCFGBuilder took 431.88 ms. Allocated memory is still 356.5 MB. Free memory was 317.0 MB in the beginning and 333.1 MB in the end (delta: -16.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.0 GB. [2021-03-25 05:05:08,900 INFO L168 Benchmark]: TraceAbstraction took 4658.59 ms. Allocated memory was 356.5 MB in the beginning and 427.8 MB in the end (delta: 71.3 MB). Free memory was 332.4 MB in the beginning and 264.6 MB in the end (delta: 67.8 MB). Peak memory consumption was 138.8 MB. Max. memory is 16.0 GB. [2021-03-25 05:05:08,906 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 493.80 ms. Allocated memory was 255.9 MB in the beginning and 356.5 MB in the end (delta: 100.7 MB). Free memory was 233.8 MB in the beginning and 320.3 MB in the end (delta: -86.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.24 ms. Allocated memory is still 356.5 MB. Free memory was 320.3 MB in the beginning and 318.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 40.12 ms. Allocated memory is still 356.5 MB. Free memory was 318.2 MB in the beginning and 317.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 431.88 ms. Allocated memory is still 356.5 MB. Free memory was 317.0 MB in the beginning and 333.1 MB in the end (delta: -16.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4658.59 ms. Allocated memory was 356.5 MB in the beginning and 427.8 MB in the end (delta: 71.3 MB). Free memory was 332.4 MB in the beginning and 264.6 MB in the end (delta: 67.8 MB). Peak memory consumption was 138.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1465.4ms, 80 PlacesBefore, 38 PlacesAfterwards, 68 TransitionsBefore, 25 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 43 TotalNumberOfCompositions, 1269 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 765, positive: 737, positive conditional: 0, positive unconditional: 737, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 575, positive: 556, positive conditional: 0, positive unconditional: 556, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 575, positive: 556, positive conditional: 0, positive unconditional: 556, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 765, positive: 181, positive conditional: 0, positive unconditional: 181, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 575, unknown conditional: 0, unknown unconditional: 575] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 474.0ms, 37 PlacesBefore, 33 PlacesAfterwards, 29 TransitionsBefore, 25 TransitionsAfterwards, 228 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 218 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 59, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 23, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 59, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 23, unknown conditional: 0, unknown unconditional: 23] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 476.8ms, 37 PlacesBefore, 36 PlacesAfterwards, 28 TransitionsBefore, 27 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 162 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 39, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.7ms, 38 PlacesBefore, 38 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 105 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 26, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.3ms, 40 PlacesBefore, 40 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 105 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 28, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.6ms, 44 PlacesBefore, 44 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 158 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 94 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.5ms, 42 PlacesBefore, 42 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.6ms, 45 PlacesBefore, 45 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 246 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.8ms, 48 PlacesBefore, 48 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 242 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 200.4ms, 49 PlacesBefore, 47 PlacesAfterwards, 34 TransitionsBefore, 32 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 32 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 32, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.0ms, 45 PlacesBefore, 45 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8ms, 42 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - 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 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4535.7ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 671.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1573.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 62 SDtfs, 31 SDslu, 24 SDs, 0 SdLazy, 150 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 154.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 136.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=259occurred in iteration=8, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.9ms SsaConstructionTime, 183.4ms SatisfiabilityAnalysisTime, 572.7ms InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 811 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...