/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 11:00:30,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 11:00:30,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 11:00:30,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 11:00:30,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 11:00:30,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 11:00:30,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 11:00:30,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 11:00:30,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 11:00:30,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 11:00:30,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 11:00:30,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 11:00:30,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 11:00:30,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 11:00:30,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 11:00:30,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 11:00:30,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 11:00:30,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 11:00:30,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 11:00:30,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 11:00:30,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 11:00:30,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 11:00:30,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 11:00:30,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 11:00:30,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 11:00:30,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 11:00:30,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 11:00:30,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 11:00:30,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 11:00:30,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 11:00:30,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 11:00:30,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 11:00:30,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 11:00:30,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 11:00:30,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 11:00:30,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 11:00:30,743 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-VariableLbe.epf [2021-03-24 11:00:30,762 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 11:00:30,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 11:00:30,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 11:00:30,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 11:00:30,764 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 11:00:30,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 11:00:30,764 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 11:00:30,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 11:00:30,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 11:00:30,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 11:00:30,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 11:00:30,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 11:00:30,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 11:00:30,765 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 11:00:30,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 11:00:30,766 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 11:00:30,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 11:00:30,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 11:00:30,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 11:00:30,766 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 11:00:30,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 11:00:30,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 11:00:30,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 11:00:30,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 11:00:30,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 11:00:30,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 11:00:30,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 11:00:30,767 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 11:00:30,767 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 11:00:30,768 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 11:00:31,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 11:00:31,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 11:00:31,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 11:00:31,058 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 11:00:31,059 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 11:00:31,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2021-03-24 11:00:31,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9261db70/0a23abe8b8c1408bbac6c049c4fd01e3/FLAGab9e194ed [2021-03-24 11:00:31,794 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 11:00:31,796 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2021-03-24 11:00:31,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9261db70/0a23abe8b8c1408bbac6c049c4fd01e3/FLAGab9e194ed [2021-03-24 11:00:31,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9261db70/0a23abe8b8c1408bbac6c049c4fd01e3 [2021-03-24 11:00:31,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 11:00:31,943 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 11:00:31,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 11:00:31,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 11:00:31,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 11:00:31,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:00:31" (1/1) ... [2021-03-24 11:00:31,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337a145c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:00:31, skipping insertion in model container [2021-03-24 11:00:31,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:00:31" (1/1) ... [2021-03-24 11:00:31,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 11:00:31,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 11:00:32,132 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i[950,963] [2021-03-24 11:00:32,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:00:32,236 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 11:00:32,246 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i[950,963] [2021-03-24 11:00:32,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:00:32,361 INFO L208 MainTranslator]: Completed translation [2021-03-24 11:00:32,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:00:32 WrapperNode [2021-03-24 11:00:32,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 11:00:32,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 11:00:32,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 11:00:32,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 11:00:32,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:00:32" (1/1) ... [2021-03-24 11:00:32,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:00:32" (1/1) ... [2021-03-24 11:00:32,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 11:00:32,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 11:00:32,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 11:00:32,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 11:00:32,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:00:32" (1/1) ... [2021-03-24 11:00:32,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:00:32" (1/1) ... [2021-03-24 11:00:32,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:00:32" (1/1) ... [2021-03-24 11:00:32,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:00:32" (1/1) ... [2021-03-24 11:00:32,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:00:32" (1/1) ... [2021-03-24 11:00:32,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:00:32" (1/1) ... [2021-03-24 11:00:32,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:00:32" (1/1) ... [2021-03-24 11:00:32,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 11:00:32,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 11:00:32,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 11:00:32,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 11:00:32,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:00:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 11:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 11:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 11:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 11:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 11:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-24 11:00:32,508 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-24 11:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-24 11:00:32,508 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-24 11:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-24 11:00:32,508 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-24 11:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 11:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 11:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 11:00:32,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 11:00:32,510 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 11:00:32,807 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 11:00:32,807 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-24 11:00:32,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:00:32 BoogieIcfgContainer [2021-03-24 11:00:32,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 11:00:32,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 11:00:32,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 11:00:32,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 11:00:32,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 11:00:31" (1/3) ... [2021-03-24 11:00:32,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d980d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:00:32, skipping insertion in model container [2021-03-24 11:00:32,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:00:32" (2/3) ... [2021-03-24 11:00:32,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d980d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:00:32, skipping insertion in model container [2021-03-24 11:00:32,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:00:32" (3/3) ... [2021-03-24 11:00:32,814 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2021-03-24 11:00:32,819 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 11:00:32,827 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 11:00:32,828 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 11:00:32,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,851 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,851 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,851 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,851 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,851 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,851 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,851 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,852 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,852 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,852 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,852 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,852 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,852 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,852 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,853 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,853 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,853 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,853 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,853 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,853 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,854 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,854 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,855 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,856 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,856 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,857 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,857 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,860 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,861 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,861 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,861 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,862 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,862 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,862 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,863 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:00:32,864 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 11:00:32,880 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-24 11:00:32,896 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 11:00:32,896 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 11:00:32,896 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 11:00:32,896 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 11:00:32,897 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 11:00:32,897 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 11:00:32,897 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 11:00:32,897 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 11:00:32,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-03-24 11:00:32,936 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-03-24 11:00:32,936 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:00:32,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-24 11:00:32,939 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-03-24 11:00:32,943 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-03-24 11:00:32,944 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 11:00:32,951 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-24 11:00:32,954 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-24 11:00:32,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-03-24 11:00:32,970 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-03-24 11:00:32,970 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:00:32,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 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. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-24 11:00:32,973 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-24 11:00:34,273 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-03-24 11:00:34,428 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-03-24 11:00:34,486 INFO L154 LiptonReduction]: Checked pairs total: 1328 [2021-03-24 11:00:34,487 INFO L156 LiptonReduction]: Total number of compositions: 41 [2021-03-24 11:00:34,489 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1546 [2021-03-24 11:00:34,506 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-24 11:00:34,507 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:00:34,507 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:00:34,508 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:00:34,508 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:00:34,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:00:34,515 INFO L82 PathProgramCache]: Analyzing trace with hash -864788976, now seen corresponding path program 1 times [2021-03-24 11:00:34,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:00:34,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675437458] [2021-03-24 11:00:34,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:00:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:00:34,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:34,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:00:34,832 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-24 11:00:34,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:00:34,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:34,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:00:34,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:00:34,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675437458] [2021-03-24 11:00:34,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:00:34,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:00:34,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697197000] [2021-03-24 11:00:34,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 11:00:34,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:00:34,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 11:00:34,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 11:00:34,880 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 116 [2021-03-24 11:00:34,889 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:34,889 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:00:34,889 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 116 [2021-03-24 11:00:34,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:00:34,977 INFO L129 PetriNetUnfolder]: 90/223 cut-off events. [2021-03-24 11:00:34,978 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:00:34,978 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 223 events. 90/223 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1016 event pairs, 6 based on Foata normal form. 26/239 useless extension candidates. Maximal degree in co-relation 393. Up to 55 conditions per place. [2021-03-24 11:00:34,980 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 11 selfloop transitions, 6 changer transitions 14/43 dead transitions. [2021-03-24 11:00:34,980 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 43 transitions, 157 flow [2021-03-24 11:00:34,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 11:00:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 11:00:34,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 615 transitions. [2021-03-24 11:00:34,993 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7573891625615764 [2021-03-24 11:00:34,993 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 615 transitions. [2021-03-24 11:00:34,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 615 transitions. [2021-03-24 11:00:34,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:00:34,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 615 transitions. [2021-03-24 11:00:35,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,007 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,008 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 7 states and 615 transitions. [2021-03-24 11:00:35,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 43 transitions, 157 flow [2021-03-24 11:00:35,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 154 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-24 11:00:35,013 INFO L241 Difference]: Finished difference. Result has 40 places, 25 transitions, 106 flow [2021-03-24 11:00:35,014 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=106, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2021-03-24 11:00:35,015 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2021-03-24 11:00:35,015 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 106 flow [2021-03-24 11:00:35,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,015 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:00:35,015 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:00:35,016 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 11:00:35,016 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:00:35,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:00:35,016 INFO L82 PathProgramCache]: Analyzing trace with hash 2143174420, now seen corresponding path program 1 times [2021-03-24 11:00:35,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:00:35,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342470552] [2021-03-24 11:00:35,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:00:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:00:35,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:00:35,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:00:35,066 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-24 11:00:35,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:00:35,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:00:35,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:00:35,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342470552] [2021-03-24 11:00:35,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:00:35,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 11:00:35,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769685427] [2021-03-24 11:00:35,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 11:00:35,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:00:35,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 11:00:35,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 11:00:35,085 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 116 [2021-03-24 11:00:35,086 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 25 transitions, 106 flow. Second operand has 5 states, 5 states have (on average 82.2) internal successors, (411), 5 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,086 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:00:35,086 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 116 [2021-03-24 11:00:35,086 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:00:35,225 INFO L129 PetriNetUnfolder]: 131/325 cut-off events. [2021-03-24 11:00:35,225 INFO L130 PetriNetUnfolder]: For 502/606 co-relation queries the response was YES. [2021-03-24 11:00:35,229 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1013 conditions, 325 events. 131/325 cut-off events. For 502/606 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1699 event pairs, 4 based on Foata normal form. 27/348 useless extension candidates. Maximal degree in co-relation 994. Up to 103 conditions per place. [2021-03-24 11:00:35,231 INFO L132 encePairwiseOnDemand]: 106/116 looper letters, 18 selfloop transitions, 14 changer transitions 21/64 dead transitions. [2021-03-24 11:00:35,232 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 64 transitions, 440 flow [2021-03-24 11:00:35,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 11:00:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 11:00:35,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 773 transitions. [2021-03-24 11:00:35,235 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7404214559386973 [2021-03-24 11:00:35,235 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 773 transitions. [2021-03-24 11:00:35,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 773 transitions. [2021-03-24 11:00:35,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:00:35,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 773 transitions. [2021-03-24 11:00:35,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 85.88888888888889) internal successors, (773), 9 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,241 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,241 INFO L185 Difference]: Start difference. First operand has 40 places, 25 transitions, 106 flow. Second operand 9 states and 773 transitions. [2021-03-24 11:00:35,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 64 transitions, 440 flow [2021-03-24 11:00:35,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 64 transitions, 427 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-03-24 11:00:35,246 INFO L241 Difference]: Finished difference. Result has 51 places, 34 transitions, 244 flow [2021-03-24 11:00:35,247 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=244, PETRI_PLACES=51, PETRI_TRANSITIONS=34} [2021-03-24 11:00:35,247 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 20 predicate places. [2021-03-24 11:00:35,248 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 34 transitions, 244 flow [2021-03-24 11:00:35,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 82.2) internal successors, (411), 5 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,248 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:00:35,248 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:00:35,248 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 11:00:35,248 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:00:35,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:00:35,249 INFO L82 PathProgramCache]: Analyzing trace with hash -2134147955, now seen corresponding path program 1 times [2021-03-24 11:00:35,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:00:35,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869694501] [2021-03-24 11:00:35,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:00:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:00:35,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:00:35,326 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-24 11:00:35,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:00:35,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:00:35,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:00:35,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869694501] [2021-03-24 11:00:35,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:00:35,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:00:35,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052601349] [2021-03-24 11:00:35,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 11:00:35,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:00:35,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 11:00:35,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 11:00:35,352 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 116 [2021-03-24 11:00:35,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 34 transitions, 244 flow. Second operand has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,353 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:00:35,353 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 116 [2021-03-24 11:00:35,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:00:35,422 INFO L129 PetriNetUnfolder]: 56/184 cut-off events. [2021-03-24 11:00:35,422 INFO L130 PetriNetUnfolder]: For 823/884 co-relation queries the response was YES. [2021-03-24 11:00:35,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 818 conditions, 184 events. 56/184 cut-off events. For 823/884 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 883 event pairs, 5 based on Foata normal form. 17/197 useless extension candidates. Maximal degree in co-relation 789. Up to 58 conditions per place. [2021-03-24 11:00:35,424 INFO L132 encePairwiseOnDemand]: 109/116 looper letters, 17 selfloop transitions, 11 changer transitions 19/60 dead transitions. [2021-03-24 11:00:35,425 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 60 transitions, 606 flow [2021-03-24 11:00:35,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 11:00:35,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 11:00:35,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 607 transitions. [2021-03-24 11:00:35,427 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7475369458128078 [2021-03-24 11:00:35,430 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 607 transitions. [2021-03-24 11:00:35,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 607 transitions. [2021-03-24 11:00:35,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:00:35,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 607 transitions. [2021-03-24 11:00:35,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 86.71428571428571) internal successors, (607), 7 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,435 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,435 INFO L185 Difference]: Start difference. First operand has 51 places, 34 transitions, 244 flow. Second operand 7 states and 607 transitions. [2021-03-24 11:00:35,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 60 transitions, 606 flow [2021-03-24 11:00:35,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 60 transitions, 582 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-03-24 11:00:35,443 INFO L241 Difference]: Finished difference. Result has 56 places, 37 transitions, 326 flow [2021-03-24 11:00:35,443 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=326, PETRI_PLACES=56, PETRI_TRANSITIONS=37} [2021-03-24 11:00:35,443 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 25 predicate places. [2021-03-24 11:00:35,443 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 37 transitions, 326 flow [2021-03-24 11:00:35,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,444 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:00:35,445 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:00:35,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 11:00:35,445 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:00:35,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:00:35,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1991076331, now seen corresponding path program 1 times [2021-03-24 11:00:35,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:00:35,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461108520] [2021-03-24 11:00:35,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:00:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:00:35,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:00:35,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:00:35,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:00:35,518 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-24 11:00:35,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:00:35,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:00:35,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:00:35,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461108520] [2021-03-24 11:00:35,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:00:35,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 11:00:35,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864836725] [2021-03-24 11:00:35,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 11:00:35,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:00:35,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 11:00:35,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-24 11:00:35,543 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 116 [2021-03-24 11:00:35,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 37 transitions, 326 flow. Second operand has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:00:35,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 116 [2021-03-24 11:00:35,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:00:35,593 INFO L129 PetriNetUnfolder]: 34/148 cut-off events. [2021-03-24 11:00:35,594 INFO L130 PetriNetUnfolder]: For 747/807 co-relation queries the response was YES. [2021-03-24 11:00:35,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 709 conditions, 148 events. 34/148 cut-off events. For 747/807 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 731 event pairs, 1 based on Foata normal form. 12/157 useless extension candidates. Maximal degree in co-relation 675. Up to 44 conditions per place. [2021-03-24 11:00:35,595 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 9 selfloop transitions, 12 changer transitions 26/60 dead transitions. [2021-03-24 11:00:35,595 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 60 transitions, 705 flow [2021-03-24 11:00:35,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 11:00:35,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 11:00:35,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 521 transitions. [2021-03-24 11:00:35,597 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7485632183908046 [2021-03-24 11:00:35,597 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 521 transitions. [2021-03-24 11:00:35,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 521 transitions. [2021-03-24 11:00:35,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:00:35,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 521 transitions. [2021-03-24 11:00:35,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,600 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,600 INFO L185 Difference]: Start difference. First operand has 56 places, 37 transitions, 326 flow. Second operand 6 states and 521 transitions. [2021-03-24 11:00:35,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 60 transitions, 705 flow [2021-03-24 11:00:35,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 60 transitions, 665 flow, removed 14 selfloop flow, removed 5 redundant places. [2021-03-24 11:00:35,607 INFO L241 Difference]: Finished difference. Result has 55 places, 32 transitions, 273 flow [2021-03-24 11:00:35,607 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=273, PETRI_PLACES=55, PETRI_TRANSITIONS=32} [2021-03-24 11:00:35,607 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 24 predicate places. [2021-03-24 11:00:35,607 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 32 transitions, 273 flow [2021-03-24 11:00:35,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,608 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:00:35,608 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:00:35,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 11:00:35,608 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:00:35,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:00:35,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1610367673, now seen corresponding path program 1 times [2021-03-24 11:00:35,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:00:35,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522539934] [2021-03-24 11:00:35,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:00:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:00:35,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:00:35,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:00:35,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:00:35,683 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-24 11:00:35,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:00:35,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:00:35,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:00:35,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522539934] [2021-03-24 11:00:35,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:00:35,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 11:00:35,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963834842] [2021-03-24 11:00:35,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 11:00:35,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:00:35,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 11:00:35,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-24 11:00:35,707 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 116 [2021-03-24 11:00:35,707 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 32 transitions, 273 flow. Second operand has 6 states, 6 states have (on average 84.33333333333333) internal successors, (506), 6 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) [2021-03-24 11:00:35,707 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:00:35,707 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 116 [2021-03-24 11:00:35,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:00:35,789 INFO L129 PetriNetUnfolder]: 11/67 cut-off events. [2021-03-24 11:00:35,789 INFO L130 PetriNetUnfolder]: For 316/353 co-relation queries the response was YES. [2021-03-24 11:00:35,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 67 events. 11/67 cut-off events. For 316/353 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 219 event pairs, 0 based on Foata normal form. 8/73 useless extension candidates. Maximal degree in co-relation 313. Up to 16 conditions per place. [2021-03-24 11:00:35,790 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 6 selfloop transitions, 7 changer transitions 15/40 dead transitions. [2021-03-24 11:00:35,790 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 40 transitions, 417 flow [2021-03-24 11:00:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 11:00:35,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 11:00:35,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 770 transitions. [2021-03-24 11:00:35,792 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7375478927203065 [2021-03-24 11:00:35,792 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 770 transitions. [2021-03-24 11:00:35,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 770 transitions. [2021-03-24 11:00:35,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:00:35,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 770 transitions. [2021-03-24 11:00:35,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 85.55555555555556) internal successors, (770), 9 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,798 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,798 INFO L185 Difference]: Start difference. First operand has 55 places, 32 transitions, 273 flow. Second operand 9 states and 770 transitions. [2021-03-24 11:00:35,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 40 transitions, 417 flow [2021-03-24 11:00:35,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 40 transitions, 352 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-03-24 11:00:35,802 INFO L241 Difference]: Finished difference. Result has 59 places, 25 transitions, 172 flow [2021-03-24 11:00:35,802 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=172, PETRI_PLACES=59, PETRI_TRANSITIONS=25} [2021-03-24 11:00:35,802 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 28 predicate places. [2021-03-24 11:00:35,802 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 25 transitions, 172 flow [2021-03-24 11:00:35,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 84.33333333333333) internal successors, (506), 6 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) [2021-03-24 11:00:35,803 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:00:35,803 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:00:35,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 11:00:35,803 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:00:35,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:00:35,804 INFO L82 PathProgramCache]: Analyzing trace with hash 2066078221, now seen corresponding path program 1 times [2021-03-24 11:00:35,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:00:35,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619966415] [2021-03-24 11:00:35,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:00:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:00:35,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:00:35,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:00:35,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:00:35,859 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-24 11:00:35,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:00:35,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:00:35,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:00:35,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:00:35,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619966415] [2021-03-24 11:00:35,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:00:35,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 11:00:35,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622961183] [2021-03-24 11:00:35,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 11:00:35,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:00:35,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 11:00:35,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-24 11:00:35,878 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 116 [2021-03-24 11:00:35,879 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 25 transitions, 172 flow. Second operand has 6 states, 6 states have (on average 82.5) internal successors, (495), 6 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,879 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:00:35,879 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 116 [2021-03-24 11:00:35,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:00:35,911 INFO L129 PetriNetUnfolder]: 3/27 cut-off events. [2021-03-24 11:00:35,911 INFO L130 PetriNetUnfolder]: For 93/102 co-relation queries the response was YES. [2021-03-24 11:00:35,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 27 events. 3/27 cut-off events. For 93/102 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 26 event pairs, 0 based on Foata normal form. 2/28 useless extension candidates. Maximal degree in co-relation 116. Up to 11 conditions per place. [2021-03-24 11:00:35,912 INFO L132 encePairwiseOnDemand]: 111/116 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2021-03-24 11:00:35,912 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 26 transitions, 213 flow [2021-03-24 11:00:35,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 11:00:35,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 11:00:35,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 499 transitions. [2021-03-24 11:00:35,914 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7169540229885057 [2021-03-24 11:00:35,914 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 499 transitions. [2021-03-24 11:00:35,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 499 transitions. [2021-03-24 11:00:35,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:00:35,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 499 transitions. [2021-03-24 11:00:35,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 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) [2021-03-24 11:00:35,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,917 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,917 INFO L185 Difference]: Start difference. First operand has 59 places, 25 transitions, 172 flow. Second operand 6 states and 499 transitions. [2021-03-24 11:00:35,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 26 transitions, 213 flow [2021-03-24 11:00:35,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 26 transitions, 147 flow, removed 17 selfloop flow, removed 14 redundant places. [2021-03-24 11:00:35,918 INFO L241 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2021-03-24 11:00:35,919 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2021-03-24 11:00:35,919 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-24 11:00:35,919 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2021-03-24 11:00:35,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 82.5) internal successors, (495), 6 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:00:35,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 11:00:35,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 11:00:35 BasicIcfg [2021-03-24 11:00:35,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 11:00:35,924 INFO L168 Benchmark]: Toolchain (without parser) took 3979.72 ms. Allocated memory was 255.9 MB in the beginning and 421.5 MB in the end (delta: 165.7 MB). Free memory was 233.2 MB in the beginning and 226.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 172.3 MB. Max. memory is 16.0 GB. [2021-03-24 11:00:35,924 INFO L168 Benchmark]: CDTParser took 1.02 ms. Allocated memory is still 255.9 MB. Free memory was 237.7 MB in the beginning and 237.6 MB in the end (delta: 82.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 11:00:35,924 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.85 ms. Allocated memory was 255.9 MB in the beginning and 350.2 MB in the end (delta: 94.4 MB). Free memory was 232.7 MB in the beginning and 312.5 MB in the end (delta: -79.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-24 11:00:35,926 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.56 ms. Allocated memory is still 350.2 MB. Free memory was 312.5 MB in the beginning and 310.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 11:00:35,927 INFO L168 Benchmark]: Boogie Preprocessor took 38.86 ms. Allocated memory is still 350.2 MB. Free memory was 310.5 MB in the beginning and 309.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-24 11:00:35,927 INFO L168 Benchmark]: RCFGBuilder took 350.91 ms. Allocated memory is still 350.2 MB. Free memory was 309.1 MB in the beginning and 327.2 MB in the end (delta: -18.1 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.0 GB. [2021-03-24 11:00:35,929 INFO L168 Benchmark]: TraceAbstraction took 3112.79 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 326.5 MB in the beginning and 226.0 MB in the end (delta: 100.5 MB). Peak memory consumption was 171.5 MB. Max. memory is 16.0 GB. [2021-03-24 11:00:35,933 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02 ms. Allocated memory is still 255.9 MB. Free memory was 237.7 MB in the beginning and 237.6 MB in the end (delta: 82.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 416.85 ms. Allocated memory was 255.9 MB in the beginning and 350.2 MB in the end (delta: 94.4 MB). Free memory was 232.7 MB in the beginning and 312.5 MB in the end (delta: -79.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.56 ms. Allocated memory is still 350.2 MB. Free memory was 312.5 MB in the beginning and 310.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 38.86 ms. Allocated memory is still 350.2 MB. Free memory was 310.5 MB in the beginning and 309.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 350.91 ms. Allocated memory is still 350.2 MB. Free memory was 309.1 MB in the beginning and 327.2 MB in the end (delta: -18.1 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3112.79 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 326.5 MB in the beginning and 226.0 MB in the end (delta: 100.5 MB). Peak memory consumption was 171.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1532.9ms, 69 PlacesBefore, 31 PlacesAfterwards, 60 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 41 TotalNumberOfCompositions, 1328 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 668, positive: 621, positive conditional: 0, positive unconditional: 621, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 443, positive: 426, positive conditional: 0, positive unconditional: 426, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 443, positive: 426, positive conditional: 0, positive unconditional: 426, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 668, positive: 195, positive conditional: 0, positive unconditional: 195, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 443, unknown conditional: 0, unknown unconditional: 443] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 8.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3027.4ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 602.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1601.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 68 SDtfs, 91 SDslu, 91 SDs, 0 SdLazy, 106 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 114.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 246.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=326occurred in iteration=3, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 30.2ms SsaConstructionTime, 167.4ms SatisfiabilityAnalysisTime, 447.4ms InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 485 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...