/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 00:34:03,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 00:34:03,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 00:34:03,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 00:34:03,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 00:34:03,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 00:34:03,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 00:34:03,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 00:34:03,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 00:34:03,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 00:34:03,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 00:34:03,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 00:34:03,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 00:34:03,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 00:34:03,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 00:34:03,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 00:34:03,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 00:34:03,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 00:34:03,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 00:34:03,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 00:34:03,314 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative.epf [2021-08-13 00:34:03,334 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 00:34:03,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 00:34:03,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 00:34:03,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 00:34:03,336 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 00:34:03,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 00:34:03,336 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 00:34:03,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 00:34:03,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 00:34:03,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 00:34:03,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 00:34:03,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 00:34:03,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 00:34:03,337 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 00:34:03,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 00:34:03,337 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 00:34:03,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 00:34:03,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 00:34:03,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 00:34:03,338 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 00:34:03,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 00:34:03,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 00:34:03,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 00:34:03,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 00:34:03,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 00:34:03,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 00:34:03,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 00:34:03,339 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 00:34:03,339 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 00:34:03,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 00:34:03,340 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 00:34:03,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 00:34:03,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 00:34:03,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 00:34:03,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 00:34:03,646 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 00:34:03,646 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 00:34:03,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2021-08-13 00:34:03,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98a2e265d/91b0043af98541d6a2e8f0d9320fbad8/FLAG4626e6195 [2021-08-13 00:34:04,603 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 00:34:04,603 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2021-08-13 00:34:04,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98a2e265d/91b0043af98541d6a2e8f0d9320fbad8/FLAG4626e6195 [2021-08-13 00:34:04,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98a2e265d/91b0043af98541d6a2e8f0d9320fbad8 [2021-08-13 00:34:04,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 00:34:04,705 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 00:34:04,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 00:34:04,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 00:34:04,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 00:34:04,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 12:34:04" (1/1) ... [2021-08-13 00:34:04,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1093979c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:34:04, skipping insertion in model container [2021-08-13 00:34:04,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 12:34:04" (1/1) ... [2021-08-13 00:34:04,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 00:34:04,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 00:34:04,976 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i[949,962] [2021-08-13 00:34:05,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 00:34:05,117 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 00:34:05,130 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i[949,962] [2021-08-13 00:34:05,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 00:34:05,218 INFO L208 MainTranslator]: Completed translation [2021-08-13 00:34:05,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:34:05 WrapperNode [2021-08-13 00:34:05,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 00:34:05,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 00:34:05,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 00:34:05,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 00:34:05,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:34:05" (1/1) ... [2021-08-13 00:34:05,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:34:05" (1/1) ... [2021-08-13 00:34:05,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 00:34:05,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 00:34:05,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 00:34:05,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 00:34:05,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:34:05" (1/1) ... [2021-08-13 00:34:05,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:34:05" (1/1) ... [2021-08-13 00:34:05,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:34:05" (1/1) ... [2021-08-13 00:34:05,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:34:05" (1/1) ... [2021-08-13 00:34:05,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:34:05" (1/1) ... [2021-08-13 00:34:05,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:34:05" (1/1) ... [2021-08-13 00:34:05,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:34:05" (1/1) ... [2021-08-13 00:34:05,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 00:34:05,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 00:34:05,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 00:34:05,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 00:34:05,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:34:05" (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 [2021-08-13 00:34:05,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 00:34:05,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 00:34:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 00:34:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 00:34:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 00:34:05,381 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 00:34:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 00:34:05,381 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 00:34:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 00:34:05,381 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 00:34:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 00:34:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 00:34:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 00:34:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 00:34:05,383 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 00:34:05,705 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 00:34:05,705 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-13 00:34:05,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:34:05 BoogieIcfgContainer [2021-08-13 00:34:05,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 00:34:05,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 00:34:05,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 00:34:05,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 00:34:05,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 12:34:04" (1/3) ... [2021-08-13 00:34:05,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2883abc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 12:34:05, skipping insertion in model container [2021-08-13 00:34:05,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:34:05" (2/3) ... [2021-08-13 00:34:05,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2883abc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 12:34:05, skipping insertion in model container [2021-08-13 00:34:05,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:34:05" (3/3) ... [2021-08-13 00:34:05,713 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.opt.i [2021-08-13 00:34:05,718 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 00:34:05,719 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 00:34:05,720 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 00:34:05,753 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,754 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,754 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,754 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,754 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,754 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,754 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,755 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,755 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,755 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,755 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,755 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,756 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,756 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,756 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,756 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,758 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,758 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,758 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,758 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,763 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,764 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,764 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,765 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,766 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,766 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,766 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,766 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,766 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,766 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,766 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,766 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,768 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,768 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,768 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,768 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,771 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,772 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,772 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,772 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,777 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,777 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,777 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,780 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,781 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:34:05,785 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 00:34:05,805 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-13 00:34:05,825 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 00:34:05,825 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 00:34:05,825 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 00:34:05,825 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 00:34:05,826 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 00:34:05,826 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 00:34:05,826 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 00:34:05,826 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 00:34:05,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2021-08-13 00:34:05,870 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-08-13 00:34:05,870 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 00:34:05,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 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 45 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-08-13 00:34:05,873 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2021-08-13 00:34:05,877 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2021-08-13 00:34:05,893 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-08-13 00:34:05,893 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 00:34:05,893 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:34:05,894 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 00:34:05,894 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:34:05,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:34:05,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1408065288, now seen corresponding path program 1 times [2021-08-13 00:34:05,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:34:05,906 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666341103] [2021-08-13 00:34:05,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:34:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:34:06,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:06,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:34:06,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:06,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:34:06,230 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 00:34:06,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 00:34:06,250 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:34:06,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:34:06,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:06,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:34:06,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:06,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:34:06,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:06,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:34:06,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 00:34:06,311 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:34:06,311 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666341103] [2021-08-13 00:34:06,313 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666341103] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:34:06,313 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:34:06,313 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 00:34:06,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444498422] [2021-08-13 00:34:06,322 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 00:34:06,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:34:06,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 00:34:06,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 00:34:06,349 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 85 [2021-08-13 00:34:06,355 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 149 flow. Second operand has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 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) [2021-08-13 00:34:06,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:34:06,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 85 [2021-08-13 00:34:06,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:34:06,562 INFO L129 PetriNetUnfolder]: 69/264 cut-off events. [2021-08-13 00:34:06,562 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 00:34:06,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 264 events. 69/264 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1113 event pairs, 11 based on Foata normal form. 10/264 useless extension candidates. Maximal degree in co-relation 373. Up to 49 conditions per place. [2021-08-13 00:34:06,565 INFO L132 encePairwiseOnDemand]: 77/85 looper letters, 11 selfloop transitions, 3 changer transitions 22/93 dead transitions. [2021-08-13 00:34:06,565 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 93 transitions, 267 flow [2021-08-13 00:34:06,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 00:34:06,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 00:34:06,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 730 transitions. [2021-08-13 00:34:06,586 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8588235294117647 [2021-08-13 00:34:06,587 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 730 transitions. [2021-08-13 00:34:06,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 730 transitions. [2021-08-13 00:34:06,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:34:06,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 730 transitions. [2021-08-13 00:34:06,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 73.0) internal successors, (730), 10 states have internal predecessors, (730), 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) [2021-08-13 00:34:06,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 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) [2021-08-13 00:34:06,607 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 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) [2021-08-13 00:34:06,608 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 9 predicate places. [2021-08-13 00:34:06,608 INFO L482 AbstractCegarLoop]: Abstraction has has 88 places, 93 transitions, 267 flow [2021-08-13 00:34:06,608 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 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) [2021-08-13 00:34:06,608 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:34:06,609 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 00:34:06,609 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 00:34:06,609 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:34:06,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:34:06,610 INFO L82 PathProgramCache]: Analyzing trace with hash -873664247, now seen corresponding path program 1 times [2021-08-13 00:34:06,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:34:06,610 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551231251] [2021-08-13 00:34:06,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:34:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:34:06,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:06,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:34:06,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:06,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:34:06,724 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:34:06,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:34:06,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:06,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:34:06,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:06,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:34:06,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:06,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:34:06,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 00:34:06,758 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:34:06,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551231251] [2021-08-13 00:34:06,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551231251] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:34:06,759 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:34:06,759 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 00:34:06,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69557129] [2021-08-13 00:34:06,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 00:34:06,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:34:06,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 00:34:06,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 00:34:06,762 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 85 [2021-08-13 00:34:06,763 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 93 transitions, 267 flow. Second operand has 6 states, 6 states have (on average 74.16666666666667) internal successors, (445), 6 states have internal predecessors, (445), 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) [2021-08-13 00:34:06,763 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:34:06,763 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 85 [2021-08-13 00:34:06,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:34:06,922 INFO L129 PetriNetUnfolder]: 80/351 cut-off events. [2021-08-13 00:34:06,922 INFO L130 PetriNetUnfolder]: For 37/53 co-relation queries the response was YES. [2021-08-13 00:34:06,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 351 events. 80/351 cut-off events. For 37/53 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1946 event pairs, 14 based on Foata normal form. 4/347 useless extension candidates. Maximal degree in co-relation 585. Up to 54 conditions per place. [2021-08-13 00:34:06,928 INFO L132 encePairwiseOnDemand]: 79/85 looper letters, 6 selfloop transitions, 3 changer transitions 45/116 dead transitions. [2021-08-13 00:34:06,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 116 transitions, 449 flow [2021-08-13 00:34:06,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 00:34:06,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 00:34:06,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 677 transitions. [2021-08-13 00:34:06,931 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8849673202614379 [2021-08-13 00:34:06,931 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 677 transitions. [2021-08-13 00:34:06,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 677 transitions. [2021-08-13 00:34:06,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:34:06,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 677 transitions. [2021-08-13 00:34:06,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.22222222222223) internal successors, (677), 9 states have internal predecessors, (677), 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) [2021-08-13 00:34:06,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 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) [2021-08-13 00:34:06,935 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 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) [2021-08-13 00:34:06,936 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 17 predicate places. [2021-08-13 00:34:06,936 INFO L482 AbstractCegarLoop]: Abstraction has has 96 places, 116 transitions, 449 flow [2021-08-13 00:34:06,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 74.16666666666667) internal successors, (445), 6 states have internal predecessors, (445), 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) [2021-08-13 00:34:06,937 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:34:06,937 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 00:34:06,937 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 00:34:06,937 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:34:06,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:34:06,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1824318454, now seen corresponding path program 1 times [2021-08-13 00:34:06,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:34:06,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813308910] [2021-08-13 00:34:06,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:34:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:34:07,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:34:07,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:34:07,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:34:07,043 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 00:34:07,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 00:34:07,055 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:34:07,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:34:07,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:34:07,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:34:07,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:34:07,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 00:34:07,106 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:34:07,107 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813308910] [2021-08-13 00:34:07,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813308910] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:34:07,107 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:34:07,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 00:34:07,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847734549] [2021-08-13 00:34:07,108 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 00:34:07,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:34:07,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 00:34:07,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-13 00:34:07,110 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 85 [2021-08-13 00:34:07,111 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 116 transitions, 449 flow. Second operand has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 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) [2021-08-13 00:34:07,111 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:34:07,111 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 85 [2021-08-13 00:34:07,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:34:07,409 INFO L129 PetriNetUnfolder]: 141/513 cut-off events. [2021-08-13 00:34:07,409 INFO L130 PetriNetUnfolder]: For 118/370 co-relation queries the response was YES. [2021-08-13 00:34:07,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1227 conditions, 513 events. 141/513 cut-off events. For 118/370 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3232 event pairs, 1 based on Foata normal form. 5/510 useless extension candidates. Maximal degree in co-relation 1184. Up to 78 conditions per place. [2021-08-13 00:34:07,412 INFO L132 encePairwiseOnDemand]: 77/85 looper letters, 13 selfloop transitions, 5 changer transitions 122/195 dead transitions. [2021-08-13 00:34:07,412 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 195 transitions, 1163 flow [2021-08-13 00:34:07,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 00:34:07,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 00:34:07,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 922 transitions. [2021-08-13 00:34:07,415 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8343891402714932 [2021-08-13 00:34:07,415 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 922 transitions. [2021-08-13 00:34:07,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 922 transitions. [2021-08-13 00:34:07,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:34:07,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 922 transitions. [2021-08-13 00:34:07,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 70.92307692307692) internal successors, (922), 13 states have internal predecessors, (922), 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) [2021-08-13 00:34:07,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2021-08-13 00:34:07,421 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2021-08-13 00:34:07,421 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 29 predicate places. [2021-08-13 00:34:07,421 INFO L482 AbstractCegarLoop]: Abstraction has has 108 places, 195 transitions, 1163 flow [2021-08-13 00:34:07,421 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 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) [2021-08-13 00:34:07,421 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:34:07,421 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 00:34:07,422 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 00:34:07,422 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:34:07,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:34:07,422 INFO L82 PathProgramCache]: Analyzing trace with hash 682113587, now seen corresponding path program 1 times [2021-08-13 00:34:07,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:34:07,423 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095294846] [2021-08-13 00:34:07,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:34:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:34:07,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:34:07,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:34:07,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:34:07,471 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:34:07,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:34:07,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:34:07,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:34:07,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:34:07,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 00:34:07,505 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:34:07,505 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095294846] [2021-08-13 00:34:07,505 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095294846] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:34:07,505 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:34:07,505 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 00:34:07,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675638128] [2021-08-13 00:34:07,505 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 00:34:07,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:34:07,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 00:34:07,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 00:34:07,507 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-08-13 00:34:07,508 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 195 transitions, 1163 flow. Second operand has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 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) [2021-08-13 00:34:07,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:34:07,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-08-13 00:34:07,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:34:07,806 INFO L129 PetriNetUnfolder]: 310/922 cut-off events. [2021-08-13 00:34:07,807 INFO L130 PetriNetUnfolder]: For 708/1612 co-relation queries the response was YES. [2021-08-13 00:34:07,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2724 conditions, 922 events. 310/922 cut-off events. For 708/1612 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 6782 event pairs, 2 based on Foata normal form. 15/926 useless extension candidates. Maximal degree in co-relation 2677. Up to 212 conditions per place. [2021-08-13 00:34:07,811 INFO L132 encePairwiseOnDemand]: 77/85 looper letters, 6 selfloop transitions, 4 changer transitions 261/329 dead transitions. [2021-08-13 00:34:07,811 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 329 transitions, 2667 flow [2021-08-13 00:34:07,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 00:34:07,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 00:34:07,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 956 transitions. [2021-08-13 00:34:07,814 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.865158371040724 [2021-08-13 00:34:07,814 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 956 transitions. [2021-08-13 00:34:07,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 956 transitions. [2021-08-13 00:34:07,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:34:07,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 956 transitions. [2021-08-13 00:34:07,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.53846153846153) internal successors, (956), 13 states have internal predecessors, (956), 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) [2021-08-13 00:34:07,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2021-08-13 00:34:07,820 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2021-08-13 00:34:07,820 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 41 predicate places. [2021-08-13 00:34:07,820 INFO L482 AbstractCegarLoop]: Abstraction has has 120 places, 329 transitions, 2667 flow [2021-08-13 00:34:07,820 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 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) [2021-08-13 00:34:07,821 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:34:07,821 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 00:34:07,821 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 00:34:07,821 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:34:07,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:34:07,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1539956177, now seen corresponding path program 1 times [2021-08-13 00:34:07,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:34:07,825 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941708639] [2021-08-13 00:34:07,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:34:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:34:07,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:34:07,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:34:07,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:34:07,923 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:34:07,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:34:07,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:34:07,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:34:07,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:34:07,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:34:07,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 00:34:07,960 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:34:07,960 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941708639] [2021-08-13 00:34:07,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941708639] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:34:07,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:34:07,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 00:34:07,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195631246] [2021-08-13 00:34:07,962 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 00:34:07,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:34:07,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 00:34:07,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 00:34:07,963 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-08-13 00:34:07,964 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 329 transitions, 2667 flow. Second operand has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 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) [2021-08-13 00:34:07,964 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:34:07,964 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-08-13 00:34:07,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:34:08,391 INFO L129 PetriNetUnfolder]: 747/1737 cut-off events. [2021-08-13 00:34:08,391 INFO L130 PetriNetUnfolder]: For 2513/4892 co-relation queries the response was YES. [2021-08-13 00:34:08,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5993 conditions, 1737 events. 747/1737 cut-off events. For 2513/4892 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 13161 event pairs, 2 based on Foata normal form. 34/1754 useless extension candidates. Maximal degree in co-relation 5942. Up to 377 conditions per place. [2021-08-13 00:34:08,401 INFO L132 encePairwiseOnDemand]: 77/85 looper letters, 0 selfloop transitions, 0 changer transitions 581/581 dead transitions. [2021-08-13 00:34:08,401 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 581 transitions, 6069 flow [2021-08-13 00:34:08,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 00:34:08,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 00:34:08,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 955 transitions. [2021-08-13 00:34:08,404 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8642533936651584 [2021-08-13 00:34:08,404 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 955 transitions. [2021-08-13 00:34:08,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 955 transitions. [2021-08-13 00:34:08,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:34:08,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 955 transitions. [2021-08-13 00:34:08,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.46153846153847) internal successors, (955), 13 states have internal predecessors, (955), 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) [2021-08-13 00:34:08,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2021-08-13 00:34:08,409 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2021-08-13 00:34:08,409 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 51 predicate places. [2021-08-13 00:34:08,409 INFO L482 AbstractCegarLoop]: Abstraction has has 130 places, 581 transitions, 6069 flow [2021-08-13 00:34:08,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 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) [2021-08-13 00:34:08,410 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown