/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-CovSimpl-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 15:33:09,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 15:33:09,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 15:33:09,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 15:33:09,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 15:33:09,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 15:33:09,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 15:33:09,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 15:33:09,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 15:33:09,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 15:33:09,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 15:33:09,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 15:33:09,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 15:33:09,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 15:33:09,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 15:33:09,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 15:33:09,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 15:33:09,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 15:33:09,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 15:33:09,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 15:33:09,231 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-CovSimpl-Hitting.epf [2021-08-13 15:33:09,263 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 15:33:09,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 15:33:09,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 15:33:09,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 15:33:09,265 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 15:33:09,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 15:33:09,265 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 15:33:09,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 15:33:09,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 15:33:09,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 15:33:09,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 15:33:09,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 15:33:09,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 15:33:09,266 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 15:33:09,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 15:33:09,267 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 15:33:09,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 15:33:09,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 15:33:09,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 15:33:09,267 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 15:33:09,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 15:33:09,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 15:33:09,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 15:33:09,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 15:33:09,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 15:33:09,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 15:33:09,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 15:33:09,269 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 15:33:09,269 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 15:33:09,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 15:33:09,269 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 15:33:09,269 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 15:33:09,269 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 15:33:09,269 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 15:33:09,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 15:33:09,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 15:33:09,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 15:33:09,520 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 15:33:09,520 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 15:33:09,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2021-08-13 15:33:09,583 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82dacabea/59c1a642054b4d8fad6ee3146ff219fe/FLAG424612c19 [2021-08-13 15:33:10,076 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 15:33:10,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2021-08-13 15:33:10,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82dacabea/59c1a642054b4d8fad6ee3146ff219fe/FLAG424612c19 [2021-08-13 15:33:10,603 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82dacabea/59c1a642054b4d8fad6ee3146ff219fe [2021-08-13 15:33:10,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 15:33:10,607 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 15:33:10,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 15:33:10,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 15:33:10,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 15:33:10,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 03:33:10" (1/1) ... [2021-08-13 15:33:10,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59abfdad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:33:10, skipping insertion in model container [2021-08-13 15:33:10,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 03:33:10" (1/1) ... [2021-08-13 15:33:10,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 15:33:10,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 15:33:10,785 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/safe000_tso.oepc.i[950,963] [2021-08-13 15:33:10,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 15:33:10,928 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 15:33:10,938 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/safe000_tso.oepc.i[950,963] [2021-08-13 15:33:10,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 15:33:11,025 INFO L208 MainTranslator]: Completed translation [2021-08-13 15:33:11,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:33:11 WrapperNode [2021-08-13 15:33:11,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 15:33:11,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 15:33:11,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 15:33:11,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 15:33:11,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:33:11" (1/1) ... [2021-08-13 15:33:11,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:33:11" (1/1) ... [2021-08-13 15:33:11,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 15:33:11,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 15:33:11,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 15:33:11,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 15:33:11,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:33:11" (1/1) ... [2021-08-13 15:33:11,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:33:11" (1/1) ... [2021-08-13 15:33:11,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:33:11" (1/1) ... [2021-08-13 15:33:11,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:33:11" (1/1) ... [2021-08-13 15:33:11,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:33:11" (1/1) ... [2021-08-13 15:33:11,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:33:11" (1/1) ... [2021-08-13 15:33:11,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:33:11" (1/1) ... [2021-08-13 15:33:11,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 15:33:11,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 15:33:11,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 15:33:11,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 15:33:11,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:33:11" (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 15:33:11,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 15:33:11,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 15:33:11,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 15:33:11,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 15:33:11,193 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 15:33:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 15:33:11,193 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 15:33:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 15:33:11,193 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 15:33:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 15:33:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 15:33:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 15:33:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 15:33:11,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 15:33:11,195 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 15:33:11,501 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 15:33:11,501 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-13 15:33:11,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 03:33:11 BoogieIcfgContainer [2021-08-13 15:33:11,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 15:33:11,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 15:33:11,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 15:33:11,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 15:33:11,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 03:33:10" (1/3) ... [2021-08-13 15:33:11,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4011d955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 03:33:11, skipping insertion in model container [2021-08-13 15:33:11,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:33:11" (2/3) ... [2021-08-13 15:33:11,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4011d955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 03:33:11, skipping insertion in model container [2021-08-13 15:33:11,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 03:33:11" (3/3) ... [2021-08-13 15:33:11,507 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_tso.oepc.i [2021-08-13 15:33:11,510 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 15:33:11,511 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 15:33:11,511 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 15:33:11,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,528 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,528 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,528 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,528 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,529 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,529 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,530 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,530 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,531 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,531 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,531 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,531 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,531 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,531 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,531 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,531 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,531 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,533 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,534 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,534 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,534 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,537 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,538 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,539 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,539 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:33:11,540 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 15:33:11,556 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-13 15:33:11,578 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 15:33:11,579 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 15:33:11,579 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 15:33:11,579 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 15:33:11,579 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 15:33:11,579 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 15:33:11,579 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 15:33:11,579 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 15:33:11,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2021-08-13 15:33:11,615 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-08-13 15:33:11,615 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 15:33:11,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-08-13 15:33:11,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 84 transitions, 183 flow [2021-08-13 15:33:11,625 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 69 transitions, 147 flow [2021-08-13 15:33:11,642 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-08-13 15:33:11,642 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 15:33:11,642 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:33:11,643 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] [2021-08-13 15:33:11,643 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:33:11,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:33:11,653 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-08-13 15:33:11,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:33:11,659 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322981104] [2021-08-13 15:33:11,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:33:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:33:11,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:11,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:33:11,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:11,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:33:11,875 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:33:11,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:33:11,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:11,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:33:11,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:11,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:33:11,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:11,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:33:11,932 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 15:33:11,932 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:33:11,933 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322981104] [2021-08-13 15:33:11,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322981104] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:33:11,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:33:11,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 15:33:11,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208071399] [2021-08-13 15:33:11,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 15:33:11,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:33:11,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 15:33:11,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 15:33:11,954 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 84 [2021-08-13 15:33:11,959 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 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 15:33:11,965 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:33:11,965 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 84 [2021-08-13 15:33:11,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:33:12,129 INFO L129 PetriNetUnfolder]: 3/83 cut-off events. [2021-08-13 15:33:12,130 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 15:33:12,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 83 events. 3/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 4/86 useless extension candidates. Maximal degree in co-relation 82. Up to 7 conditions per place. [2021-08-13 15:33:12,131 INFO L132 encePairwiseOnDemand]: 77/84 looper letters, 6 selfloop transitions, 2 changer transitions 11/78 dead transitions. [2021-08-13 15:33:12,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 78 transitions, 201 flow [2021-08-13 15:33:12,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 15:33:12,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 15:33:12,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 670 transitions. [2021-08-13 15:33:12,146 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8862433862433863 [2021-08-13 15:33:12,146 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 670 transitions. [2021-08-13 15:33:12,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 670 transitions. [2021-08-13 15:33:12,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:33:12,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 670 transitions. [2021-08-13 15:33:12,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 74.44444444444444) internal successors, (670), 9 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) [2021-08-13 15:33:12,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 15:33:12,167 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 15:33:12,168 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 8 predicate places. [2021-08-13 15:33:12,168 INFO L482 AbstractCegarLoop]: Abstraction has has 86 places, 78 transitions, 201 flow [2021-08-13 15:33:12,169 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 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 15:33:12,169 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:33:12,169 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] [2021-08-13 15:33:12,169 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 15:33:12,169 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:33:12,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:33:12,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1915177392, now seen corresponding path program 1 times [2021-08-13 15:33:12,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:33:12,171 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210899368] [2021-08-13 15:33:12,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:33:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:33:12,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:12,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:33:12,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:12,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:33:12,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:12,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:33:12,267 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:33:12,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:33:12,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:12,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:33:12,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:12,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:33:12,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:12,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:33:12,308 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 15:33:12,308 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:33:12,308 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210899368] [2021-08-13 15:33:12,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210899368] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:33:12,308 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:33:12,308 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 15:33:12,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804229896] [2021-08-13 15:33:12,309 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 15:33:12,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:33:12,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 15:33:12,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 15:33:12,311 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 84 [2021-08-13 15:33:12,312 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 78 transitions, 201 flow. Second operand has 7 states, 7 states have (on average 69.28571428571429) internal successors, (485), 7 states have internal predecessors, (485), 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 15:33:12,312 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:33:12,312 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 84 [2021-08-13 15:33:12,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:33:12,570 INFO L129 PetriNetUnfolder]: 161/412 cut-off events. [2021-08-13 15:33:12,570 INFO L130 PetriNetUnfolder]: For 32/74 co-relation queries the response was YES. [2021-08-13 15:33:12,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 845 conditions, 412 events. 161/412 cut-off events. For 32/74 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2018 event pairs, 11 based on Foata normal form. 9/408 useless extension candidates. Maximal degree in co-relation 810. Up to 78 conditions per place. [2021-08-13 15:33:12,575 INFO L132 encePairwiseOnDemand]: 75/84 looper letters, 10 selfloop transitions, 4 changer transitions 59/129 dead transitions. [2021-08-13 15:33:12,576 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 129 transitions, 493 flow [2021-08-13 15:33:12,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 15:33:12,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 15:33:12,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 945 transitions. [2021-08-13 15:33:12,578 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8653846153846154 [2021-08-13 15:33:12,579 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 945 transitions. [2021-08-13 15:33:12,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 945 transitions. [2021-08-13 15:33:12,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:33:12,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 945 transitions. [2021-08-13 15:33:12,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.6923076923077) internal successors, (945), 13 states have internal predecessors, (945), 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 15:33:12,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 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 15:33:12,584 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 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 15:33:12,585 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 20 predicate places. [2021-08-13 15:33:12,585 INFO L482 AbstractCegarLoop]: Abstraction has has 98 places, 129 transitions, 493 flow [2021-08-13 15:33:12,585 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 69.28571428571429) internal successors, (485), 7 states have internal predecessors, (485), 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 15:33:12,585 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:33:12,585 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 15:33:12,585 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 15:33:12,586 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:33:12,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:33:12,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1551979263, now seen corresponding path program 1 times [2021-08-13 15:33:12,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:33:12,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221874084] [2021-08-13 15:33:12,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:33:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:33:12,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:12,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:33:12,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:12,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:33:12,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:12,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:33:12,701 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:33:12,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:33:12,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:12,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:33:12,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:12,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:33:12,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:12,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:33:12,746 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 15:33:12,746 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:33:12,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221874084] [2021-08-13 15:33:12,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221874084] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:33:12,746 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:33:12,746 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 15:33:12,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170656746] [2021-08-13 15:33:12,747 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 15:33:12,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:33:12,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 15:33:12,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 15:33:12,748 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-08-13 15:33:12,749 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 129 transitions, 493 flow. Second operand has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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 15:33:12,749 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:33:12,749 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-08-13 15:33:12,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:33:12,991 INFO L129 PetriNetUnfolder]: 457/1006 cut-off events. [2021-08-13 15:33:12,991 INFO L130 PetriNetUnfolder]: For 319/568 co-relation queries the response was YES. [2021-08-13 15:33:12,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2483 conditions, 1006 events. 457/1006 cut-off events. For 319/568 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 6167 event pairs, 18 based on Foata normal form. 7/988 useless extension candidates. Maximal degree in co-relation 2444. Up to 202 conditions per place. [2021-08-13 15:33:13,000 INFO L132 encePairwiseOnDemand]: 76/84 looper letters, 6 selfloop transitions, 4 changer transitions 151/218 dead transitions. [2021-08-13 15:33:13,001 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 218 transitions, 1235 flow [2021-08-13 15:33:13,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 15:33:13,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 15:33:13,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 943 transitions. [2021-08-13 15:33:13,005 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8635531135531136 [2021-08-13 15:33:13,005 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 943 transitions. [2021-08-13 15:33:13,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 943 transitions. [2021-08-13 15:33:13,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:33:13,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 943 transitions. [2021-08-13 15:33:13,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.53846153846153) internal successors, (943), 13 states have internal predecessors, (943), 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 15:33:13,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 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 15:33:13,010 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 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 15:33:13,010 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 32 predicate places. [2021-08-13 15:33:13,010 INFO L482 AbstractCegarLoop]: Abstraction has has 110 places, 218 transitions, 1235 flow [2021-08-13 15:33:13,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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 15:33:13,011 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:33:13,011 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 15:33:13,011 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 15:33:13,011 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:33:13,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:33:13,012 INFO L82 PathProgramCache]: Analyzing trace with hash -2141671666, now seen corresponding path program 1 times [2021-08-13 15:33:13,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:33:13,012 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908278411] [2021-08-13 15:33:13,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:33:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:33:13,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:13,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:33:13,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:13,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:33:13,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:13,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:33:13,072 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:33:13,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:33:13,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:13,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:33:13,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:13,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:33:13,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:33:13,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:33:13,101 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 15:33:13,101 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:33:13,101 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908278411] [2021-08-13 15:33:13,101 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908278411] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:33:13,101 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:33:13,101 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 15:33:13,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730246399] [2021-08-13 15:33:13,102 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 15:33:13,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:33:13,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 15:33:13,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 15:33:13,103 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 84 [2021-08-13 15:33:13,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 218 transitions, 1235 flow. Second operand has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 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 15:33:13,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:33:13,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 84 [2021-08-13 15:33:13,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:33:13,418 INFO L129 PetriNetUnfolder]: 631/1466 cut-off events. [2021-08-13 15:33:13,418 INFO L130 PetriNetUnfolder]: For 854/3109 co-relation queries the response was YES. [2021-08-13 15:33:13,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4663 conditions, 1466 events. 631/1466 cut-off events. For 854/3109 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 10579 event pairs, 9 based on Foata normal form. 32/1470 useless extension candidates. Maximal degree in co-relation 4620. Up to 306 conditions per place. [2021-08-13 15:33:13,425 INFO L132 encePairwiseOnDemand]: 75/84 looper letters, 0 selfloop transitions, 0 changer transitions 326/326 dead transitions. [2021-08-13 15:33:13,425 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 326 transitions, 2493 flow [2021-08-13 15:33:13,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 15:33:13,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 15:33:13,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 947 transitions. [2021-08-13 15:33:13,428 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8672161172161172 [2021-08-13 15:33:13,428 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 947 transitions. [2021-08-13 15:33:13,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 947 transitions. [2021-08-13 15:33:13,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:33:13,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 947 transitions. [2021-08-13 15:33:13,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.84615384615384) internal successors, (947), 13 states have internal predecessors, (947), 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 15:33:13,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 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 15:33:13,432 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 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 15:33:13,433 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 42 predicate places. [2021-08-13 15:33:13,433 INFO L482 AbstractCegarLoop]: Abstraction has has 120 places, 326 transitions, 2493 flow [2021-08-13 15:33:13,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 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 15:33:13,433 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown