/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:35:09,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:35:09,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:35:09,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 00:35:09,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 00:35:09,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 00:35:09,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 00:35:09,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 00:35:09,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 00:35:09,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 00:35:09,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 00:35:09,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 00:35:09,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:35:09,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:35:09,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:35:09,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:35:09,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:35:09,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:35:09,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:35:09,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:35:09,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:35:09,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:35:09,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:35:09,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:35:09,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:35:09,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:35:09,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:35:09,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:35:09,928 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:35:09,987 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:35:09,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:35:09,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:35:09,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:35:09,991 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:35:09,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:35:09,992 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:35:09,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:35:09,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:35:09,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:35:09,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:35:09,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:35:09,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:35:09,994 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:35:09,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:35:09,995 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:35:09,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:35:09,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:35:09,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:35:09,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:35:09,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:35:09,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:35:09,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:35:09,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:35:09,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:35:09,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:35:09,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:35:09,998 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:35:09,998 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:35:09,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:35:09,998 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:35:10,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:35:10,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:35:10,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:35:10,528 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:35:10,529 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:35:10,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2021-04-29 00:35:10,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/766b0ddcc/c7b6b9fb57f6482d85eb3fde3ec87ab2/FLAGa9076a5e9 [2021-04-29 00:35:11,333 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:35:11,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2021-04-29 00:35:11,356 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/766b0ddcc/c7b6b9fb57f6482d85eb3fde3ec87ab2/FLAGa9076a5e9 [2021-04-29 00:35:11,589 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/766b0ddcc/c7b6b9fb57f6482d85eb3fde3ec87ab2 [2021-04-29 00:35:11,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:35:11,636 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:35:11,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:35:11,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:35:11,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:35:11,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:35:11" (1/1) ... [2021-04-29 00:35:11,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2370a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:35:11, skipping insertion in model container [2021-04-29 00:35:11,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:35:11" (1/1) ... [2021-04-29 00:35:11,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:35:11,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:35:11,885 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/safe028_tso.oepc.i[950,963] [2021-04-29 00:35:12,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:35:12,230 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:35:12,248 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/safe028_tso.oepc.i[950,963] [2021-04-29 00:35:12,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:35:12,481 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:35:12,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:35:12 WrapperNode [2021-04-29 00:35:12,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:35:12,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:35:12,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:35:12,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:35:12,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:35:12" (1/1) ... [2021-04-29 00:35:12,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:35:12" (1/1) ... [2021-04-29 00:35:12,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:35:12,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:35:12,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:35:12,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:35:12,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:35:12" (1/1) ... [2021-04-29 00:35:12,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:35:12" (1/1) ... [2021-04-29 00:35:12,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:35:12" (1/1) ... [2021-04-29 00:35:12,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:35:12" (1/1) ... [2021-04-29 00:35:12,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:35:12" (1/1) ... [2021-04-29 00:35:12,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:35:12" (1/1) ... [2021-04-29 00:35:12,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:35:12" (1/1) ... [2021-04-29 00:35:12,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:35:12,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:35:12,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:35:12,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:35:12,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:35:12" (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 [2021-04-29 00:35:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:35:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:35:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:35:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:35:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:35:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:35:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:35:12,761 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:35:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:35:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:35:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:35:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:35:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:35:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:35:12,764 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:35:13,233 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:35:13,233 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:35:13,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:35:13 BoogieIcfgContainer [2021-04-29 00:35:13,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:35:13,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:35:13,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:35:13,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:35:13,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:35:11" (1/3) ... [2021-04-29 00:35:13,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599b4380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:35:13, skipping insertion in model container [2021-04-29 00:35:13,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:35:12" (2/3) ... [2021-04-29 00:35:13,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599b4380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:35:13, skipping insertion in model container [2021-04-29 00:35:13,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:35:13" (3/3) ... [2021-04-29 00:35:13,245 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_tso.oepc.i [2021-04-29 00:35:13,251 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:35:13,256 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:35:13,257 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:35:13,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,291 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,291 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,291 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,291 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,292 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,292 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,294 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,294 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,295 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,295 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,297 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,297 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,300 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,303 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,303 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,303 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,308 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,309 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,311 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,312 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:35:13,314 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:35:13,338 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:35:13,367 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:35:13,367 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:35:13,368 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:35:13,368 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:35:13,368 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:35:13,368 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:35:13,368 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:35:13,369 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:35:13,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-04-29 00:35:13,436 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-04-29 00:35:13,436 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:35:13,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-04-29 00:35:13,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-04-29 00:35:13,447 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-04-29 00:35:13,449 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:13,466 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-29 00:35:13,470 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-29 00:35:13,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-04-29 00:35:13,493 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-04-29 00:35:13,493 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:35:13,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-04-29 00:35:13,499 INFO L146 LiptonReduction]: Number of co-enabled transitions 804 [2021-04-29 00:35:17,620 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:35:17,793 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:35:17,978 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:35:18,166 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:35:18,361 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:35:18,559 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:35:18,745 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:35:18,898 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:35:19,100 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:35:19,310 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:35:19,761 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:35:19,916 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:35:20,304 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-04-29 00:35:20,591 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-04-29 00:35:22,124 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-04-29 00:35:22,436 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-04-29 00:35:23,194 INFO L158 LiptonReduction]: Checked pairs total: 5030 [2021-04-29 00:35:23,195 INFO L160 LiptonReduction]: Total number of compositions: 89 [2021-04-29 00:35:23,199 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9752 [2021-04-29 00:35:23,227 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2021-04-29 00:35:23,227 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:35:23,228 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:35:23,229 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:35:23,229 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:35:23,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:35:23,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1058312694, now seen corresponding path program 1 times [2021-04-29 00:35:23,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:35:23,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677526288] [2021-04-29 00:35:23,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:35:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:35:23,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:23,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:23,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:35:23,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677526288] [2021-04-29 00:35:23,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:35:23,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:35:23,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094272968] [2021-04-29 00:35:23,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:35:23,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:35:23,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:35:23,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:35:23,687 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 163 [2021-04-29 00:35:23,691 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 67 transitions, 143 flow. Second operand has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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) [2021-04-29 00:35:23,692 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:35:23,692 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 163 [2021-04-29 00:35:23,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:35:23,777 INFO L129 PetriNetUnfolder]: 5/97 cut-off events. [2021-04-29 00:35:23,777 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:35:23,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 97 events. 5/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 453 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 96. Up to 17 conditions per place. [2021-04-29 00:35:23,779 INFO L132 encePairwiseOnDemand]: 148/163 looper letters, 1 selfloop transitions, 2 changer transitions 48/72 dead transitions. [2021-04-29 00:35:23,780 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 72 transitions, 203 flow [2021-04-29 00:35:23,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:35:23,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:35:23,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2021-04-29 00:35:23,797 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8220858895705522 [2021-04-29 00:35:23,798 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 402 transitions. [2021-04-29 00:35:23,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 402 transitions. [2021-04-29 00:35:23,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:35:23,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 402 transitions. [2021-04-29 00:35:23,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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) [2021-04-29 00:35:23,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2021-04-29 00:35:23,835 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2021-04-29 00:35:23,840 INFO L185 Difference]: Start difference. First operand has 77 places, 67 transitions, 143 flow. Second operand 3 states and 402 transitions. [2021-04-29 00:35:23,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 72 transitions, 203 flow [2021-04-29 00:35:23,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 72 transitions, 200 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:35:23,855 INFO L241 Difference]: Finished difference. Result has 77 places, 24 transitions, 62 flow [2021-04-29 00:35:23,860 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=77, PETRI_TRANSITIONS=24} [2021-04-29 00:35:23,861 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, 0 predicate places. [2021-04-29 00:35:23,862 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:23,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 24 transitions, 62 flow [2021-04-29 00:35:23,862 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 24 transitions, 62 flow [2021-04-29 00:35:23,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 24 transitions, 62 flow [2021-04-29 00:35:23,867 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-04-29 00:35:23,867 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:35:23,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 24 events. 0/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 52 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 00:35:23,868 INFO L146 LiptonReduction]: Number of co-enabled transitions 300 [2021-04-29 00:35:23,957 INFO L158 LiptonReduction]: Checked pairs total: 312 [2021-04-29 00:35:23,958 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:35:23,958 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 96 [2021-04-29 00:35:23,960 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 62 flow [2021-04-29 00:35:23,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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) [2021-04-29 00:35:23,960 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:35:23,960 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:35:23,961 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:35:23,961 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:35:23,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:35:23,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1552046190, now seen corresponding path program 1 times [2021-04-29 00:35:23,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:35:23,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377100716] [2021-04-29 00:35:23,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:35:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:35:24,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:24,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:24,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:24,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:35:24,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377100716] [2021-04-29 00:35:24,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:35:24,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:35:24,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118064186] [2021-04-29 00:35:24,070 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:35:24,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:35:24,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:35:24,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:35:24,073 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 163 [2021-04-29 00:35:24,074 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 115.75) internal successors, (463), 4 states have internal predecessors, (463), 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) [2021-04-29 00:35:24,074 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:35:24,075 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 163 [2021-04-29 00:35:24,075 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:35:24,106 INFO L129 PetriNetUnfolder]: 5/56 cut-off events. [2021-04-29 00:35:24,107 INFO L130 PetriNetUnfolder]: For 8/12 co-relation queries the response was YES. [2021-04-29 00:35:24,107 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 56 events. 5/56 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 219 event pairs, 1 based on Foata normal form. 5/41 useless extension candidates. Maximal degree in co-relation 84. Up to 7 conditions per place. [2021-04-29 00:35:24,108 INFO L132 encePairwiseOnDemand]: 159/163 looper letters, 4 selfloop transitions, 3 changer transitions 2/27 dead transitions. [2021-04-29 00:35:24,108 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 27 transitions, 87 flow [2021-04-29 00:35:24,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:35:24,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:35:24,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 470 transitions. [2021-04-29 00:35:24,113 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7208588957055214 [2021-04-29 00:35:24,113 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 470 transitions. [2021-04-29 00:35:24,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 470 transitions. [2021-04-29 00:35:24,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:35:24,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 470 transitions. [2021-04-29 00:35:24,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 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) [2021-04-29 00:35:24,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 163.0) internal successors, (815), 5 states have internal predecessors, (815), 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) [2021-04-29 00:35:24,120 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 163.0) internal successors, (815), 5 states have internal predecessors, (815), 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) [2021-04-29 00:35:24,120 INFO L185 Difference]: Start difference. First operand has 34 places, 24 transitions, 62 flow. Second operand 4 states and 470 transitions. [2021-04-29 00:35:24,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 27 transitions, 87 flow [2021-04-29 00:35:24,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 27 transitions, 81 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:35:24,122 INFO L241 Difference]: Finished difference. Result has 37 places, 23 transitions, 70 flow [2021-04-29 00:35:24,122 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2021-04-29 00:35:24,123 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -40 predicate places. [2021-04-29 00:35:24,123 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:24,123 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 23 transitions, 70 flow [2021-04-29 00:35:24,123 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 23 transitions, 70 flow [2021-04-29 00:35:24,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 23 transitions, 70 flow [2021-04-29 00:35:24,128 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-04-29 00:35:24,128 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 00:35:24,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 23 events. 0/23 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 00:35:24,129 INFO L146 LiptonReduction]: Number of co-enabled transitions 258 [2021-04-29 00:35:24,143 INFO L158 LiptonReduction]: Checked pairs total: 201 [2021-04-29 00:35:24,143 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:35:24,144 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-04-29 00:35:24,145 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 70 flow [2021-04-29 00:35:24,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 115.75) internal successors, (463), 4 states have internal predecessors, (463), 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) [2021-04-29 00:35:24,146 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:35:24,146 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:35:24,147 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:35:24,147 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:35:24,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:35:24,147 INFO L82 PathProgramCache]: Analyzing trace with hash -870073177, now seen corresponding path program 1 times [2021-04-29 00:35:24,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:35:24,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179029640] [2021-04-29 00:35:24,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:35:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:35:24,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:24,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:24,213 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:35:24,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:35:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:35:24,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179029640] [2021-04-29 00:35:24,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:35:24,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:35:24,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845418118] [2021-04-29 00:35:24,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:35:24,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:35:24,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:35:24,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:35:24,227 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 163 [2021-04-29 00:35:24,228 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 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) [2021-04-29 00:35:24,228 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:35:24,228 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 163 [2021-04-29 00:35:24,228 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:35:24,402 INFO L129 PetriNetUnfolder]: 432/697 cut-off events. [2021-04-29 00:35:24,402 INFO L130 PetriNetUnfolder]: For 605/618 co-relation queries the response was YES. [2021-04-29 00:35:24,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1590 conditions, 697 events. 432/697 cut-off events. For 605/618 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 4030 event pairs, 216 based on Foata normal form. 66/371 useless extension candidates. Maximal degree in co-relation 1578. Up to 541 conditions per place. [2021-04-29 00:35:24,414 INFO L132 encePairwiseOnDemand]: 151/163 looper letters, 11 selfloop transitions, 10 changer transitions 19/51 dead transitions. [2021-04-29 00:35:24,415 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 206 flow [2021-04-29 00:35:24,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:35:24,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:35:24,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 572 transitions. [2021-04-29 00:35:24,418 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.701840490797546 [2021-04-29 00:35:24,418 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 572 transitions. [2021-04-29 00:35:24,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 572 transitions. [2021-04-29 00:35:24,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:35:24,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 572 transitions. [2021-04-29 00:35:24,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.4) internal successors, (572), 5 states have internal predecessors, (572), 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) [2021-04-29 00:35:24,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 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) [2021-04-29 00:35:24,426 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 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) [2021-04-29 00:35:24,426 INFO L185 Difference]: Start difference. First operand has 36 places, 23 transitions, 70 flow. Second operand 5 states and 572 transitions. [2021-04-29 00:35:24,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 51 transitions, 206 flow [2021-04-29 00:35:24,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 51 transitions, 194 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-29 00:35:24,435 INFO L241 Difference]: Finished difference. Result has 39 places, 32 transitions, 148 flow [2021-04-29 00:35:24,435 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=148, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2021-04-29 00:35:24,435 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -38 predicate places. [2021-04-29 00:35:24,435 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:24,435 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 32 transitions, 148 flow [2021-04-29 00:35:24,436 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 32 transitions, 148 flow [2021-04-29 00:35:24,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 32 transitions, 148 flow [2021-04-29 00:35:24,494 INFO L129 PetriNetUnfolder]: 351/552 cut-off events. [2021-04-29 00:35:24,495 INFO L130 PetriNetUnfolder]: For 286/422 co-relation queries the response was YES. [2021-04-29 00:35:24,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1647 conditions, 552 events. 351/552 cut-off events. For 286/422 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 2786 event pairs, 189 based on Foata normal form. 0/255 useless extension candidates. Maximal degree in co-relation 1636. Up to 478 conditions per place. [2021-04-29 00:35:24,504 INFO L146 LiptonReduction]: Number of co-enabled transitions 252 [2021-04-29 00:35:24,509 INFO L158 LiptonReduction]: Checked pairs total: 270 [2021-04-29 00:35:24,509 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:35:24,509 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 74 [2021-04-29 00:35:24,511 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 148 flow [2021-04-29 00:35:24,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 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) [2021-04-29 00:35:24,512 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:35:24,512 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:35:24,512 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:35:24,512 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:35:24,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:35:24,513 INFO L82 PathProgramCache]: Analyzing trace with hash 2046678802, now seen corresponding path program 1 times [2021-04-29 00:35:24,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:35:24,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625626461] [2021-04-29 00:35:24,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:35:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:35:24,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:24,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:24,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:24,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:24,594 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:35:24,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:35:24,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:35:24,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625626461] [2021-04-29 00:35:24,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:35:24,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:35:24,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675751105] [2021-04-29 00:35:24,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:35:24,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:35:24,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:35:24,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:35:24,613 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 163 [2021-04-29 00:35:24,614 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 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) [2021-04-29 00:35:24,614 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:35:24,614 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 163 [2021-04-29 00:35:24,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:35:24,826 INFO L129 PetriNetUnfolder]: 324/570 cut-off events. [2021-04-29 00:35:24,826 INFO L130 PetriNetUnfolder]: For 496/1045 co-relation queries the response was YES. [2021-04-29 00:35:24,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2252 conditions, 570 events. 324/570 cut-off events. For 496/1045 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 3263 event pairs, 54 based on Foata normal form. 68/323 useless extension candidates. Maximal degree in co-relation 2239. Up to 505 conditions per place. [2021-04-29 00:35:24,832 INFO L132 encePairwiseOnDemand]: 151/163 looper letters, 11 selfloop transitions, 19 changer transitions 19/60 dead transitions. [2021-04-29 00:35:24,833 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 60 transitions, 412 flow [2021-04-29 00:35:24,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:35:24,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:35:24,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 687 transitions. [2021-04-29 00:35:24,836 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7024539877300614 [2021-04-29 00:35:24,837 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 687 transitions. [2021-04-29 00:35:24,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 687 transitions. [2021-04-29 00:35:24,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:35:24,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 687 transitions. [2021-04-29 00:35:24,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 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) [2021-04-29 00:35:24,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 163.0) internal successors, (1141), 7 states have internal predecessors, (1141), 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) [2021-04-29 00:35:24,850 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 163.0) internal successors, (1141), 7 states have internal predecessors, (1141), 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) [2021-04-29 00:35:24,850 INFO L185 Difference]: Start difference. First operand has 37 places, 32 transitions, 148 flow. Second operand 6 states and 687 transitions. [2021-04-29 00:35:24,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 60 transitions, 412 flow [2021-04-29 00:35:24,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 60 transitions, 400 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-29 00:35:24,859 INFO L241 Difference]: Finished difference. Result has 43 places, 41 transitions, 288 flow [2021-04-29 00:35:24,859 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=288, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2021-04-29 00:35:24,860 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -34 predicate places. [2021-04-29 00:35:24,860 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:24,860 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 41 transitions, 288 flow [2021-04-29 00:35:24,860 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 41 transitions, 288 flow [2021-04-29 00:35:24,861 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 41 transitions, 288 flow [2021-04-29 00:35:24,916 INFO L129 PetriNetUnfolder]: 243/426 cut-off events. [2021-04-29 00:35:24,916 INFO L130 PetriNetUnfolder]: For 712/927 co-relation queries the response was YES. [2021-04-29 00:35:24,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1974 conditions, 426 events. 243/426 cut-off events. For 712/927 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2271 event pairs, 54 based on Foata normal form. 2/214 useless extension candidates. Maximal degree in co-relation 1960. Up to 361 conditions per place. [2021-04-29 00:35:24,924 INFO L146 LiptonReduction]: Number of co-enabled transitions 250 [2021-04-29 00:35:24,949 INFO L158 LiptonReduction]: Checked pairs total: 384 [2021-04-29 00:35:24,949 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:35:24,950 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-04-29 00:35:24,952 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 41 transitions, 288 flow [2021-04-29 00:35:24,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 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) [2021-04-29 00:35:24,953 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:35:24,953 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:35:24,953 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:35:24,953 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:35:24,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:35:24,954 INFO L82 PathProgramCache]: Analyzing trace with hash -2004348537, now seen corresponding path program 1 times [2021-04-29 00:35:24,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:35:24,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088866275] [2021-04-29 00:35:24,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:35:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:35:25,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:25,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:25,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:25,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:25,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:25,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:25,070 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:35:25,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:35:25,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:35:25,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088866275] [2021-04-29 00:35:25,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:35:25,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:35:25,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547649846] [2021-04-29 00:35:25,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:35:25,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:35:25,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:35:25,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:35:25,089 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 163 [2021-04-29 00:35:25,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 41 transitions, 288 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 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) [2021-04-29 00:35:25,090 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:35:25,090 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 163 [2021-04-29 00:35:25,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:35:25,252 INFO L129 PetriNetUnfolder]: 135/318 cut-off events. [2021-04-29 00:35:25,252 INFO L130 PetriNetUnfolder]: For 710/1715 co-relation queries the response was YES. [2021-04-29 00:35:25,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1742 conditions, 318 events. 135/318 cut-off events. For 710/1715 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 1774 event pairs, 0 based on Foata normal form. 62/216 useless extension candidates. Maximal degree in co-relation 1726. Up to 280 conditions per place. [2021-04-29 00:35:25,256 INFO L132 encePairwiseOnDemand]: 151/163 looper letters, 2 selfloop transitions, 28 changer transitions 10/51 dead transitions. [2021-04-29 00:35:25,256 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 51 transitions, 464 flow [2021-04-29 00:35:25,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:35:25,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:35:25,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 784 transitions. [2021-04-29 00:35:25,260 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6871165644171779 [2021-04-29 00:35:25,260 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 784 transitions. [2021-04-29 00:35:25,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 784 transitions. [2021-04-29 00:35:25,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:35:25,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 784 transitions. [2021-04-29 00:35:25,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 112.0) internal successors, (784), 7 states have internal predecessors, (784), 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) [2021-04-29 00:35:25,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 163.0) internal successors, (1304), 8 states have internal predecessors, (1304), 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) [2021-04-29 00:35:25,269 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 163.0) internal successors, (1304), 8 states have internal predecessors, (1304), 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) [2021-04-29 00:35:25,269 INFO L185 Difference]: Start difference. First operand has 41 places, 41 transitions, 288 flow. Second operand 7 states and 784 transitions. [2021-04-29 00:35:25,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 51 transitions, 464 flow [2021-04-29 00:35:25,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 51 transitions, 368 flow, removed 38 selfloop flow, removed 4 redundant places. [2021-04-29 00:35:25,277 INFO L241 Difference]: Finished difference. Result has 46 places, 41 transitions, 290 flow [2021-04-29 00:35:25,277 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=290, PETRI_PLACES=46, PETRI_TRANSITIONS=41} [2021-04-29 00:35:25,277 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -31 predicate places. [2021-04-29 00:35:25,277 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:25,278 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 41 transitions, 290 flow [2021-04-29 00:35:25,278 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 41 transitions, 290 flow [2021-04-29 00:35:25,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 41 transitions, 290 flow [2021-04-29 00:35:25,303 INFO L129 PetriNetUnfolder]: 81/210 cut-off events. [2021-04-29 00:35:25,303 INFO L130 PetriNetUnfolder]: For 346/515 co-relation queries the response was YES. [2021-04-29 00:35:25,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 210 events. 81/210 cut-off events. For 346/515 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1106 event pairs, 0 based on Foata normal form. 1/100 useless extension candidates. Maximal degree in co-relation 943. Up to 163 conditions per place. [2021-04-29 00:35:25,307 INFO L146 LiptonReduction]: Number of co-enabled transitions 232 [2021-04-29 00:35:25,314 INFO L158 LiptonReduction]: Checked pairs total: 344 [2021-04-29 00:35:25,315 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:35:25,315 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-04-29 00:35:25,316 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 41 transitions, 290 flow [2021-04-29 00:35:25,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 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) [2021-04-29 00:35:25,317 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:35:25,317 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:35:25,317 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:35:25,317 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:35:25,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:35:25,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1155075658, now seen corresponding path program 1 times [2021-04-29 00:35:25,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:35:25,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894775819] [2021-04-29 00:35:25,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:35:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:35:25,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:25,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:35:25,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:25,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:25,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:25,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:25,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:35:25,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894775819] [2021-04-29 00:35:25,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:35:25,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:35:25,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793754292] [2021-04-29 00:35:25,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:35:25,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:35:25,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:35:25,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:35:25,368 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 163 [2021-04-29 00:35:25,368 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 41 transitions, 290 flow. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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) [2021-04-29 00:35:25,369 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:35:25,369 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 163 [2021-04-29 00:35:25,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:35:25,474 INFO L129 PetriNetUnfolder]: 172/408 cut-off events. [2021-04-29 00:35:25,474 INFO L130 PetriNetUnfolder]: For 885/1079 co-relation queries the response was YES. [2021-04-29 00:35:25,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1862 conditions, 408 events. 172/408 cut-off events. For 885/1079 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 2470 event pairs, 0 based on Foata normal form. 29/209 useless extension candidates. Maximal degree in co-relation 1845. Up to 343 conditions per place. [2021-04-29 00:35:25,477 INFO L132 encePairwiseOnDemand]: 160/163 looper letters, 4 selfloop transitions, 1 changer transitions 3/43 dead transitions. [2021-04-29 00:35:25,478 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 43 transitions, 310 flow [2021-04-29 00:35:25,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:35:25,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:35:25,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 460 transitions. [2021-04-29 00:35:25,480 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7055214723926381 [2021-04-29 00:35:25,480 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 460 transitions. [2021-04-29 00:35:25,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 460 transitions. [2021-04-29 00:35:25,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:35:25,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 460 transitions. [2021-04-29 00:35:25,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2021-04-29 00:35:25,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 163.0) internal successors, (815), 5 states have internal predecessors, (815), 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) [2021-04-29 00:35:25,485 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 163.0) internal successors, (815), 5 states have internal predecessors, (815), 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) [2021-04-29 00:35:25,485 INFO L185 Difference]: Start difference. First operand has 44 places, 41 transitions, 290 flow. Second operand 4 states and 460 transitions. [2021-04-29 00:35:25,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 43 transitions, 310 flow [2021-04-29 00:35:25,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 43 transitions, 207 flow, removed 31 selfloop flow, removed 7 redundant places. [2021-04-29 00:35:25,498 INFO L241 Difference]: Finished difference. Result has 42 places, 40 transitions, 193 flow [2021-04-29 00:35:25,498 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=193, PETRI_PLACES=42, PETRI_TRANSITIONS=40} [2021-04-29 00:35:25,498 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -35 predicate places. [2021-04-29 00:35:25,498 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:25,499 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 40 transitions, 193 flow [2021-04-29 00:35:25,499 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 40 transitions, 193 flow [2021-04-29 00:35:25,499 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 40 transitions, 193 flow [2021-04-29 00:35:25,521 INFO L129 PetriNetUnfolder]: 90/236 cut-off events. [2021-04-29 00:35:25,521 INFO L130 PetriNetUnfolder]: For 112/125 co-relation queries the response was YES. [2021-04-29 00:35:25,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 236 events. 90/236 cut-off events. For 112/125 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1300 event pairs, 0 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 606. Up to 109 conditions per place. [2021-04-29 00:35:25,524 INFO L146 LiptonReduction]: Number of co-enabled transitions 164 [2021-04-29 00:35:25,578 INFO L158 LiptonReduction]: Checked pairs total: 168 [2021-04-29 00:35:25,578 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 00:35:25,578 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 80 [2021-04-29 00:35:25,580 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 40 transitions, 194 flow [2021-04-29 00:35:25,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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) [2021-04-29 00:35:25,580 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:35:25,581 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:35:25,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:35:25,581 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:35:25,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:35:25,581 INFO L82 PathProgramCache]: Analyzing trace with hash -131163429, now seen corresponding path program 1 times [2021-04-29 00:35:25,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:35:25,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446875112] [2021-04-29 00:35:25,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:35:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:35:25,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:25,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:35:25,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:25,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:25,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:35:25,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:35:25,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:35:25,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446875112] [2021-04-29 00:35:25,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:35:25,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:35:25,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669077609] [2021-04-29 00:35:25,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:35:25,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:35:25,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:35:25,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:35:25,628 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 164 [2021-04-29 00:35:25,629 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 40 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:25,629 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:35:25,629 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 164 [2021-04-29 00:35:25,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:35:25,666 INFO L129 PetriNetUnfolder]: 99/232 cut-off events. [2021-04-29 00:35:25,666 INFO L130 PetriNetUnfolder]: For 149/161 co-relation queries the response was YES. [2021-04-29 00:35:25,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 232 events. 99/232 cut-off events. For 149/161 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 1139 event pairs, 0 based on Foata normal form. 28/115 useless extension candidates. Maximal degree in co-relation 628. Up to 118 conditions per place. [2021-04-29 00:35:25,667 INFO L132 encePairwiseOnDemand]: 161/164 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2021-04-29 00:35:25,667 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 40 transitions, 201 flow [2021-04-29 00:35:25,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:35:25,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:35:25,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 477 transitions. [2021-04-29 00:35:25,670 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7271341463414634 [2021-04-29 00:35:25,670 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 477 transitions. [2021-04-29 00:35:25,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 477 transitions. [2021-04-29 00:35:25,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:35:25,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 477 transitions. [2021-04-29 00:35:25,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 119.25) internal successors, (477), 4 states have internal predecessors, (477), 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) [2021-04-29 00:35:25,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 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) [2021-04-29 00:35:25,674 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 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) [2021-04-29 00:35:25,674 INFO L185 Difference]: Start difference. First operand has 40 places, 40 transitions, 194 flow. Second operand 4 states and 477 transitions. [2021-04-29 00:35:25,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 40 transitions, 201 flow [2021-04-29 00:35:25,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 40 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:35:25,677 INFO L241 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2021-04-29 00:35:25,678 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2021-04-29 00:35:25,678 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -36 predicate places. [2021-04-29 00:35:25,678 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:35:25,678 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 0 transitions, 0 flow [2021-04-29 00:35:25,678 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 0 transitions, 0 flow [2021-04-29 00:35:25,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:35:25,679 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:35:25,679 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:35:25,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 00:35:25,679 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:35:25,679 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:35:25,679 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:35:25,680 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:35:25,681 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:35:25,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:35:25,681 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:35:25,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:35:25 BasicIcfg [2021-04-29 00:35:25,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:35:25,687 INFO L168 Benchmark]: Toolchain (without parser) took 14093.16 ms. Allocated memory was 308.3 MB in the beginning and 450.9 MB in the end (delta: 142.6 MB). Free memory was 281.4 MB in the beginning and 367.5 MB in the end (delta: -86.1 MB). Peak memory consumption was 60.2 MB. Max. memory is 16.0 GB. [2021-04-29 00:35:25,688 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 308.3 MB. Free memory was 276.7 MB in the beginning and 276.6 MB in the end (delta: 65.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:35:25,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 842.08 ms. Allocated memory is still 308.3 MB. Free memory was 278.3 MB in the beginning and 277.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.0 GB. [2021-04-29 00:35:25,689 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.69 ms. Allocated memory is still 308.3 MB. Free memory was 277.1 MB in the beginning and 275.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:35:25,693 INFO L168 Benchmark]: Boogie Preprocessor took 59.01 ms. Allocated memory is still 308.3 MB. Free memory was 275.0 MB in the beginning and 274.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:35:25,694 INFO L168 Benchmark]: RCFGBuilder took 600.16 ms. Allocated memory is still 308.3 MB. Free memory was 274.0 MB in the beginning and 250.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:35:25,694 INFO L168 Benchmark]: TraceAbstraction took 12448.80 ms. Allocated memory was 308.3 MB in the beginning and 450.9 MB in the end (delta: 142.6 MB). Free memory was 250.9 MB in the beginning and 367.5 MB in the end (delta: -116.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:35:25,696 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 308.3 MB. Free memory was 276.7 MB in the beginning and 276.6 MB in the end (delta: 65.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 842.08 ms. Allocated memory is still 308.3 MB. Free memory was 278.3 MB in the beginning and 277.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 90.69 ms. Allocated memory is still 308.3 MB. Free memory was 277.1 MB in the beginning and 275.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 59.01 ms. Allocated memory is still 308.3 MB. Free memory was 275.0 MB in the beginning and 274.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 600.16 ms. Allocated memory is still 308.3 MB. Free memory was 274.0 MB in the beginning and 250.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 12448.80 ms. Allocated memory was 308.3 MB in the beginning and 450.9 MB in the end (delta: 142.6 MB). Free memory was 250.9 MB in the beginning and 367.5 MB in the end (delta: -116.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9724.5ms, 68 PlacesBefore, 77 PlacesAfterwards, 59 TransitionsBefore, 67 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 6 FixpointIterations, 44 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 89 TotalNumberOfCompositions, 5030 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2164, positive: 2012, positive conditional: 2012, positive unconditional: 0, negative: 152, negative conditional: 152, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 976, positive: 924, positive conditional: 0, positive unconditional: 924, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 976, positive: 924, positive conditional: 0, positive unconditional: 924, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 976, positive: 898, positive conditional: 0, positive unconditional: 898, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 78, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 411, positive: 138, positive conditional: 0, positive unconditional: 138, negative: 272, negative conditional: 0, negative unconditional: 272, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2164, positive: 1088, positive conditional: 1088, positive unconditional: 0, negative: 100, negative conditional: 100, negative unconditional: 0, unknown: 976, unknown conditional: 976, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 966, Positive cache size: 914, Positive conditional cache size: 914, Positive unconditional cache size: 0, Negative cache size: 52, Negative conditional cache size: 52, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 95.2ms, 77 PlacesBefore, 34 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 312 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 147, positive: 126, positive conditional: 126, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 65, positive: 63, positive conditional: 7, positive unconditional: 56, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 65, positive: 63, positive conditional: 7, positive unconditional: 56, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 65, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 81, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 9, negative conditional: 6, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 147, positive: 63, positive conditional: 63, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 65, unknown conditional: 65, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1031, Positive cache size: 977, Positive conditional cache size: 977, Positive unconditional cache size: 0, Negative cache size: 54, Negative conditional cache size: 54, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.2ms, 37 PlacesBefore, 36 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 258 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 201 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 87, positive: 72, positive conditional: 72, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 11, positive conditional: 3, positive unconditional: 8, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 11, positive conditional: 3, positive unconditional: 8, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 87, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1044, Positive cache size: 988, Positive conditional cache size: 988, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 73.5ms, 39 PlacesBefore, 37 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 270 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 95, positive: 81, positive conditional: 81, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 7, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 7, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 95, positive: 65, positive conditional: 65, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1060, Positive cache size: 1004, Positive conditional cache size: 1004, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.2ms, 43 PlacesBefore, 41 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 250 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 384 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 30, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1065, Positive cache size: 1006, Positive conditional cache size: 1006, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.6ms, 46 PlacesBefore, 44 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 232 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 344 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 167, positive: 147, positive conditional: 147, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 22, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 22, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 167, positive: 125, positive conditional: 125, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1087, Positive cache size: 1028, Positive conditional cache size: 1028, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 79.3ms, 42 PlacesBefore, 40 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 168 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 83, positive: 72, positive conditional: 72, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 25, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 25, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 83, positive: 49, positive conditional: 49, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1112, Positive cache size: 1051, Positive conditional cache size: 1051, Positive unconditional cache size: 0, Negative cache size: 61, Negative conditional cache size: 61, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 41 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1112, Positive cache size: 1051, Positive conditional cache size: 1051, Positive unconditional cache size: 0, Negative cache size: 61, Negative conditional cache size: 61, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 19.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 12320.8ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1069.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9839.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 39 SDtfs, 34 SDslu, 19 SDs, 0 SdLazy, 265 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 266.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 111.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=290occurred in iteration=5, InterpolantAutomatonStates: 33, 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: 32.2ms SsaConstructionTime, 225.2ms SatisfiabilityAnalysisTime, 488.8ms InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...