/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 20:23:27,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 20:23:27,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 20:23:27,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 20:23:27,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 20:23:27,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 20:23:27,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 20:23:27,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 20:23:27,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 20:23:27,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 20:23:27,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 20:23:27,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 20:23:27,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 20:23:27,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 20:23:27,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 20:23:27,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 20:23:27,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 20:23:27,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 20:23:27,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 20:23:27,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 20:23:27,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 20:23:27,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 20:23:27,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 20:23:27,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 20:23:27,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 20:23:27,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 20:23:27,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 20:23:27,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 20:23:27,794 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-SemanticLbe.epf [2021-03-11 20:23:27,818 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 20:23:27,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 20:23:27,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 20:23:27,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 20:23:27,819 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 20:23:27,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 20:23:27,820 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 20:23:27,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 20:23:27,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 20:23:27,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 20:23:27,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 20:23:27,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 20:23:27,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 20:23:27,820 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 20:23:27,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 20:23:27,820 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 20:23:27,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 20:23:27,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 20:23:27,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 20:23:27,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 20:23:27,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 20:23:27,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 20:23:27,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 20:23:27,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 20:23:27,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 20:23:27,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 20:23:27,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 20:23:27,821 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 20:23:27,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 20:23:28,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 20:23:28,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 20:23:28,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 20:23:28,077 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 20:23:28,079 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 20:23:28,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2021-03-11 20:23:28,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84aa73c19/7986052d1b024f18bf5e87df4219e56e/FLAG7db1d6842 [2021-03-11 20:23:28,543 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 20:23:28,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2021-03-11 20:23:28,554 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84aa73c19/7986052d1b024f18bf5e87df4219e56e/FLAG7db1d6842 [2021-03-11 20:23:28,566 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84aa73c19/7986052d1b024f18bf5e87df4219e56e [2021-03-11 20:23:28,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 20:23:28,572 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 20:23:28,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 20:23:28,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 20:23:28,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 20:23:28,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:23:28" (1/1) ... [2021-03-11 20:23:28,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d790a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:23:28, skipping insertion in model container [2021-03-11 20:23:28,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:23:28" (1/1) ... [2021-03-11 20:23:28,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 20:23:28,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 20:23:28,774 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/safe013_tso.oepc.i[950,963] [2021-03-11 20:23:28,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 20:23:28,856 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 20:23:28,863 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/safe013_tso.oepc.i[950,963] [2021-03-11 20:23:28,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 20:23:28,919 INFO L208 MainTranslator]: Completed translation [2021-03-11 20:23:28,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:23:28 WrapperNode [2021-03-11 20:23:28,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 20:23:28,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 20:23:28,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 20:23:28,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 20:23:28,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:23:28" (1/1) ... [2021-03-11 20:23:28,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:23:28" (1/1) ... [2021-03-11 20:23:28,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 20:23:28,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 20:23:28,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 20:23:28,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 20:23:28,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:23:28" (1/1) ... [2021-03-11 20:23:28,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:23:28" (1/1) ... [2021-03-11 20:23:28,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:23:28" (1/1) ... [2021-03-11 20:23:28,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:23:28" (1/1) ... [2021-03-11 20:23:28,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:23:28" (1/1) ... [2021-03-11 20:23:28,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:23:28" (1/1) ... [2021-03-11 20:23:28,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:23:28" (1/1) ... [2021-03-11 20:23:28,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 20:23:28,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 20:23:28,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 20:23:28,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 20:23:28,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:23:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 20:23:29,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 20:23:29,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 20:23:29,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 20:23:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 20:23:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-11 20:23:29,054 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-11 20:23:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-11 20:23:29,055 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-11 20:23:29,056 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-11 20:23:29,056 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-11 20:23:29,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 20:23:29,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 20:23:29,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 20:23:29,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 20:23:29,057 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 20:23:29,411 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 20:23:29,411 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-11 20:23:29,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:23:29 BoogieIcfgContainer [2021-03-11 20:23:29,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 20:23:29,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 20:23:29,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 20:23:29,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 20:23:29,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 08:23:28" (1/3) ... [2021-03-11 20:23:29,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1d4695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:23:29, skipping insertion in model container [2021-03-11 20:23:29,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:23:28" (2/3) ... [2021-03-11 20:23:29,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1d4695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:23:29, skipping insertion in model container [2021-03-11 20:23:29,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:23:29" (3/3) ... [2021-03-11 20:23:29,419 INFO L111 eAbstractionObserver]: Analyzing ICFG safe013_tso.oepc.i [2021-03-11 20:23:29,422 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 20:23:29,425 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 20:23:29,425 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 20:23:29,450 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,450 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,450 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,451 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,451 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,451 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,451 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,451 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,451 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,451 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,451 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,452 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,452 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,452 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,452 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,452 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,453 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,453 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,454 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,455 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,455 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,455 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,455 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,455 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,456 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,456 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,456 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,456 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,456 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,456 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,458 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,458 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,458 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,462 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,462 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,466 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,467 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,467 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,467 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:23:29,468 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 20:23:29,479 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-11 20:23:29,491 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 20:23:29,491 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 20:23:29,491 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 20:23:29,491 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 20:23:29,491 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 20:23:29,491 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 20:23:29,491 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 20:23:29,491 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 20:23:29,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-03-11 20:23:29,522 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-03-11 20:23:29,523 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:23:29,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-11 20:23:29,526 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-03-11 20:23:29,530 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-03-11 20:23:29,532 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 20:23:29,537 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-11 20:23:29,540 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-11 20:23:29,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-03-11 20:23:29,562 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-03-11 20:23:29,562 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:23:29,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-11 20:23:29,565 INFO L116 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-11 20:23:31,288 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 20:23:31,430 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 20:23:31,573 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-11 20:23:31,771 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-11 20:23:31,846 INFO L131 LiptonReduction]: Checked pairs total: 1722 [2021-03-11 20:23:31,847 INFO L133 LiptonReduction]: Total number of compositions: 48 [2021-03-11 20:23:31,848 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2318 [2021-03-11 20:23:31,871 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-11 20:23:31,871 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:23:31,871 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:23:31,872 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:23:31,872 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:23:31,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:23:31,875 INFO L82 PathProgramCache]: Analyzing trace with hash -545165165, now seen corresponding path program 1 times [2021-03-11 20:23:31,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:23:31,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521132350] [2021-03-11 20:23:31,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:23:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:23:32,073 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-11 20:23:32,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:23:32,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:23:32,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521132350] [2021-03-11 20:23:32,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:23:32,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 20:23:32,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355845904] [2021-03-11 20:23:32,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 20:23:32,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:23:32,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 20:23:32,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 20:23:32,106 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 123 [2021-03-11 20:23:32,109 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,110 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:23:32,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 123 [2021-03-11 20:23:32,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:23:32,140 INFO L129 PetriNetUnfolder]: 11/52 cut-off events. [2021-03-11 20:23:32,140 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:23:32,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 52 events. 11/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 166 event pairs, 7 based on Foata normal form. 14/64 useless extension candidates. Maximal degree in co-relation 85. Up to 26 conditions per place. [2021-03-11 20:23:32,142 INFO L132 encePairwiseOnDemand]: 116/123 looper letters, 4 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2021-03-11 20:23:32,142 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 20 transitions, 67 flow [2021-03-11 20:23:32,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 20:23:32,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 20:23:32,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2021-03-11 20:23:32,153 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7886178861788617 [2021-03-11 20:23:32,153 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 291 transitions. [2021-03-11 20:23:32,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 291 transitions. [2021-03-11 20:23:32,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:23:32,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 291 transitions. [2021-03-11 20:23:32,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,167 INFO L185 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 3 states and 291 transitions. [2021-03-11 20:23:32,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 20 transitions, 67 flow [2021-03-11 20:23:32,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 64 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-11 20:23:32,169 INFO L241 Difference]: Finished difference. Result has 27 places, 20 transitions, 69 flow [2021-03-11 20:23:32,170 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=27, PETRI_TRANSITIONS=20} [2021-03-11 20:23:32,171 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2021-03-11 20:23:32,171 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 69 flow [2021-03-11 20:23:32,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,171 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:23:32,171 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:23:32,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 20:23:32,172 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:23:32,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:23:32,172 INFO L82 PathProgramCache]: Analyzing trace with hash 279748456, now seen corresponding path program 1 times [2021-03-11 20:23:32,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:23:32,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887531109] [2021-03-11 20:23:32,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:23:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:23:32,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:23:32,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:23:32,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:23:32,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887531109] [2021-03-11 20:23:32,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:23:32,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 20:23:32,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132826237] [2021-03-11 20:23:32,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 20:23:32,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:23:32,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 20:23:32,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 20:23:32,254 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 123 [2021-03-11 20:23:32,255 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,255 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:23:32,255 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 123 [2021-03-11 20:23:32,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:23:32,263 INFO L129 PetriNetUnfolder]: 8/45 cut-off events. [2021-03-11 20:23:32,263 INFO L130 PetriNetUnfolder]: For 13/16 co-relation queries the response was YES. [2021-03-11 20:23:32,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 45 events. 8/45 cut-off events. For 13/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 121 event pairs, 4 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 87. Up to 21 conditions per place. [2021-03-11 20:23:32,264 INFO L132 encePairwiseOnDemand]: 120/123 looper letters, 1 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2021-03-11 20:23:32,264 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 20 transitions, 77 flow [2021-03-11 20:23:32,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 20:23:32,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 20:23:32,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2021-03-11 20:23:32,265 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8482384823848238 [2021-03-11 20:23:32,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2021-03-11 20:23:32,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2021-03-11 20:23:32,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:23:32,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2021-03-11 20:23:32,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,271 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,272 INFO L185 Difference]: Start difference. First operand has 27 places, 20 transitions, 69 flow. Second operand 3 states and 313 transitions. [2021-03-11 20:23:32,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 20 transitions, 77 flow [2021-03-11 20:23:32,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 20 transitions, 72 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 20:23:32,272 INFO L241 Difference]: Finished difference. Result has 29 places, 20 transitions, 75 flow [2021-03-11 20:23:32,273 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2021-03-11 20:23:32,274 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2021-03-11 20:23:32,274 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 75 flow [2021-03-11 20:23:32,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,274 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:23:32,274 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:23:32,274 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 20:23:32,274 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:23:32,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:23:32,275 INFO L82 PathProgramCache]: Analyzing trace with hash 279748549, now seen corresponding path program 1 times [2021-03-11 20:23:32,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:23:32,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814196135] [2021-03-11 20:23:32,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:23:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:23:32,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:23:32,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:23:32,321 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-11 20:23:32,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:23:32,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:23:32,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814196135] [2021-03-11 20:23:32,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:23:32,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 20:23:32,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304765079] [2021-03-11 20:23:32,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:23:32,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:23:32,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:23:32,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:23:32,329 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 123 [2021-03-11 20:23:32,329 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,329 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:23:32,329 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 123 [2021-03-11 20:23:32,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:23:32,344 INFO L129 PetriNetUnfolder]: 6/40 cut-off events. [2021-03-11 20:23:32,344 INFO L130 PetriNetUnfolder]: For 21/38 co-relation queries the response was YES. [2021-03-11 20:23:32,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 40 events. 6/40 cut-off events. For 21/38 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 95 event pairs, 3 based on Foata normal form. 4/43 useless extension candidates. Maximal degree in co-relation 96. Up to 18 conditions per place. [2021-03-11 20:23:32,344 INFO L132 encePairwiseOnDemand]: 118/123 looper letters, 4 selfloop transitions, 7 changer transitions 0/22 dead transitions. [2021-03-11 20:23:32,344 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 22 transitions, 105 flow [2021-03-11 20:23:32,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 20:23:32,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-11 20:23:32,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 383 transitions. [2021-03-11 20:23:32,346 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7784552845528455 [2021-03-11 20:23:32,346 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 383 transitions. [2021-03-11 20:23:32,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 383 transitions. [2021-03-11 20:23:32,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:23:32,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 383 transitions. [2021-03-11 20:23:32,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,348 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,348 INFO L185 Difference]: Start difference. First operand has 29 places, 20 transitions, 75 flow. Second operand 4 states and 383 transitions. [2021-03-11 20:23:32,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 22 transitions, 105 flow [2021-03-11 20:23:32,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 22 transitions, 99 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 20:23:32,349 INFO L241 Difference]: Finished difference. Result has 31 places, 22 transitions, 97 flow [2021-03-11 20:23:32,349 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=97, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2021-03-11 20:23:32,349 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2021-03-11 20:23:32,349 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 97 flow [2021-03-11 20:23:32,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,350 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:23:32,350 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:23:32,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 20:23:32,350 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:23:32,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:23:32,350 INFO L82 PathProgramCache]: Analyzing trace with hash 82537654, now seen corresponding path program 1 times [2021-03-11 20:23:32,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:23:32,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201839943] [2021-03-11 20:23:32,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:23:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:23:32,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:23:32,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:23:32,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:23:32,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:23:32,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:23:32,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201839943] [2021-03-11 20:23:32,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:23:32,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 20:23:32,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776922945] [2021-03-11 20:23:32,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:23:32,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:23:32,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:23:32,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:23:32,390 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 123 [2021-03-11 20:23:32,390 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,390 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:23:32,390 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 123 [2021-03-11 20:23:32,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:23:32,412 INFO L129 PetriNetUnfolder]: 9/60 cut-off events. [2021-03-11 20:23:32,412 INFO L130 PetriNetUnfolder]: For 88/98 co-relation queries the response was YES. [2021-03-11 20:23:32,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 60 events. 9/60 cut-off events. For 88/98 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 214 event pairs, 4 based on Foata normal form. 10/68 useless extension candidates. Maximal degree in co-relation 143. Up to 26 conditions per place. [2021-03-11 20:23:32,413 INFO L132 encePairwiseOnDemand]: 119/123 looper letters, 1 selfloop transitions, 4 changer transitions 2/24 dead transitions. [2021-03-11 20:23:32,413 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 24 transitions, 121 flow [2021-03-11 20:23:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 20:23:32,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-11 20:23:32,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 395 transitions. [2021-03-11 20:23:32,414 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8028455284552846 [2021-03-11 20:23:32,415 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 395 transitions. [2021-03-11 20:23:32,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 395 transitions. [2021-03-11 20:23:32,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:23:32,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 395 transitions. [2021-03-11 20:23:32,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,417 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,417 INFO L185 Difference]: Start difference. First operand has 31 places, 22 transitions, 97 flow. Second operand 4 states and 395 transitions. [2021-03-11 20:23:32,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 24 transitions, 121 flow [2021-03-11 20:23:32,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 24 transitions, 121 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-11 20:23:32,419 INFO L241 Difference]: Finished difference. Result has 36 places, 22 transitions, 114 flow [2021-03-11 20:23:32,419 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=114, PETRI_PLACES=36, PETRI_TRANSITIONS=22} [2021-03-11 20:23:32,420 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 9 predicate places. [2021-03-11 20:23:32,420 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 22 transitions, 114 flow [2021-03-11 20:23:32,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,420 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:23:32,420 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:23:32,420 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 20:23:32,420 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:23:32,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:23:32,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1736100964, now seen corresponding path program 1 times [2021-03-11 20:23:32,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:23:32,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265735745] [2021-03-11 20:23:32,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:23:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:23:32,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:23:32,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:23:32,510 INFO L142 QuantifierPusher]: treesize reduction 26, result has 66.2 percent of original size [2021-03-11 20:23:32,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 20:23:32,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:23:32,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265735745] [2021-03-11 20:23:32,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:23:32,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 20:23:32,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956257385] [2021-03-11 20:23:32,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:23:32,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:23:32,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:23:32,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:23:32,529 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 123 [2021-03-11 20:23:32,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 22 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:23:32,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 123 [2021-03-11 20:23:32,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:23:32,568 INFO L129 PetriNetUnfolder]: 69/161 cut-off events. [2021-03-11 20:23:32,568 INFO L130 PetriNetUnfolder]: For 535/576 co-relation queries the response was YES. [2021-03-11 20:23:32,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 429 conditions, 161 events. 69/161 cut-off events. For 535/576 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 757 event pairs, 9 based on Foata normal form. 19/166 useless extension candidates. Maximal degree in co-relation 412. Up to 73 conditions per place. [2021-03-11 20:23:32,571 INFO L132 encePairwiseOnDemand]: 117/123 looper letters, 8 selfloop transitions, 5 changer transitions 0/29 dead transitions. [2021-03-11 20:23:32,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 29 transitions, 154 flow [2021-03-11 20:23:32,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 20:23:32,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-11 20:23:32,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 383 transitions. [2021-03-11 20:23:32,573 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7784552845528455 [2021-03-11 20:23:32,573 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 383 transitions. [2021-03-11 20:23:32,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 383 transitions. [2021-03-11 20:23:32,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:23:32,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 383 transitions. [2021-03-11 20:23:32,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,575 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,575 INFO L185 Difference]: Start difference. First operand has 36 places, 22 transitions, 114 flow. Second operand 4 states and 383 transitions. [2021-03-11 20:23:32,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 29 transitions, 154 flow [2021-03-11 20:23:32,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 29 transitions, 140 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-11 20:23:32,578 INFO L241 Difference]: Finished difference. Result has 37 places, 26 transitions, 138 flow [2021-03-11 20:23:32,578 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=37, PETRI_TRANSITIONS=26} [2021-03-11 20:23:32,578 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2021-03-11 20:23:32,578 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 26 transitions, 138 flow [2021-03-11 20:23:32,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,578 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:23:32,579 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:23:32,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 20:23:32,579 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:23:32,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:23:32,579 INFO L82 PathProgramCache]: Analyzing trace with hash -2005993100, now seen corresponding path program 1 times [2021-03-11 20:23:32,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:23:32,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298396470] [2021-03-11 20:23:32,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:23:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:23:32,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:23:32,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:23:32,628 INFO L142 QuantifierPusher]: treesize reduction 8, result has 33.3 percent of original size [2021-03-11 20:23:32,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 20:23:32,634 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.9 percent of original size [2021-03-11 20:23:32,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:23:32,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:23:32,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298396470] [2021-03-11 20:23:32,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:23:32,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 20:23:32,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015152975] [2021-03-11 20:23:32,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 20:23:32,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:23:32,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 20:23:32,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 20:23:32,647 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 123 [2021-03-11 20:23:32,648 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 26 transitions, 138 flow. Second operand has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,648 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:23:32,648 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 123 [2021-03-11 20:23:32,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:23:32,688 INFO L129 PetriNetUnfolder]: 49/137 cut-off events. [2021-03-11 20:23:32,689 INFO L130 PetriNetUnfolder]: For 284/476 co-relation queries the response was YES. [2021-03-11 20:23:32,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 137 events. 49/137 cut-off events. For 284/476 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 646 event pairs, 1 based on Foata normal form. 33/152 useless extension candidates. Maximal degree in co-relation 452. Up to 97 conditions per place. [2021-03-11 20:23:32,689 INFO L132 encePairwiseOnDemand]: 117/123 looper letters, 9 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2021-03-11 20:23:32,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 201 flow [2021-03-11 20:23:32,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 20:23:32,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 20:23:32,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 479 transitions. [2021-03-11 20:23:32,691 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7788617886178861 [2021-03-11 20:23:32,691 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 479 transitions. [2021-03-11 20:23:32,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 479 transitions. [2021-03-11 20:23:32,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:23:32,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 479 transitions. [2021-03-11 20:23:32,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 95.8) internal successors, (479), 5 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,693 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,693 INFO L185 Difference]: Start difference. First operand has 37 places, 26 transitions, 138 flow. Second operand 5 states and 479 transitions. [2021-03-11 20:23:32,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 201 flow [2021-03-11 20:23:32,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 33 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 20:23:32,696 INFO L241 Difference]: Finished difference. Result has 42 places, 30 transitions, 190 flow [2021-03-11 20:23:32,696 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=190, PETRI_PLACES=42, PETRI_TRANSITIONS=30} [2021-03-11 20:23:32,696 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 15 predicate places. [2021-03-11 20:23:32,696 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 30 transitions, 190 flow [2021-03-11 20:23:32,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,696 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:23:32,696 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:23:32,697 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 20:23:32,697 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:23:32,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:23:32,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1147365206, now seen corresponding path program 1 times [2021-03-11 20:23:32,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:23:32,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758048361] [2021-03-11 20:23:32,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:23:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:23:32,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:23:32,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:23:32,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:23:32,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:23:32,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:23:32,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:23:32,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:23:32,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758048361] [2021-03-11 20:23:32,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:23:32,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 20:23:32,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288088554] [2021-03-11 20:23:32,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:23:32,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:23:32,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:23:32,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:23:32,737 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 123 [2021-03-11 20:23:32,737 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,737 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:23:32,737 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 123 [2021-03-11 20:23:32,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:23:32,757 INFO L129 PetriNetUnfolder]: 54/167 cut-off events. [2021-03-11 20:23:32,758 INFO L130 PetriNetUnfolder]: For 485/618 co-relation queries the response was YES. [2021-03-11 20:23:32,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 167 events. 54/167 cut-off events. For 485/618 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 929 event pairs, 1 based on Foata normal form. 17/158 useless extension candidates. Maximal degree in co-relation 599. Up to 118 conditions per place. [2021-03-11 20:23:32,758 INFO L132 encePairwiseOnDemand]: 120/123 looper letters, 3 selfloop transitions, 2 changer transitions 5/31 dead transitions. [2021-03-11 20:23:32,759 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 206 flow [2021-03-11 20:23:32,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 20:23:32,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-11 20:23:32,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 398 transitions. [2021-03-11 20:23:32,760 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8089430894308943 [2021-03-11 20:23:32,760 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 398 transitions. [2021-03-11 20:23:32,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 398 transitions. [2021-03-11 20:23:32,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:23:32,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 398 transitions. [2021-03-11 20:23:32,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,762 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,762 INFO L185 Difference]: Start difference. First operand has 42 places, 30 transitions, 190 flow. Second operand 4 states and 398 transitions. [2021-03-11 20:23:32,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 206 flow [2021-03-11 20:23:32,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 31 transitions, 194 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-03-11 20:23:32,764 INFO L241 Difference]: Finished difference. Result has 45 places, 26 transitions, 164 flow [2021-03-11 20:23:32,765 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=45, PETRI_TRANSITIONS=26} [2021-03-11 20:23:32,765 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 18 predicate places. [2021-03-11 20:23:32,765 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 26 transitions, 164 flow [2021-03-11 20:23:32,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,765 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:23:32,765 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:23:32,765 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 20:23:32,765 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:23:32,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:23:32,766 INFO L82 PathProgramCache]: Analyzing trace with hash 730423296, now seen corresponding path program 2 times [2021-03-11 20:23:32,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:23:32,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344119373] [2021-03-11 20:23:32,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:23:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:23:32,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:23:32,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:23:32,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:23:32,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:23:32,818 INFO L142 QuantifierPusher]: treesize reduction 8, result has 33.3 percent of original size [2021-03-11 20:23:32,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 20:23:32,826 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.9 percent of original size [2021-03-11 20:23:32,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:23:32,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:23:32,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344119373] [2021-03-11 20:23:32,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:23:32,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 20:23:32,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496082604] [2021-03-11 20:23:32,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 20:23:32,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:23:32,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 20:23:32,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-11 20:23:32,838 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 123 [2021-03-11 20:23:32,839 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 26 transitions, 164 flow. Second operand has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,839 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:23:32,839 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 123 [2021-03-11 20:23:32,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:23:32,877 INFO L129 PetriNetUnfolder]: 18/82 cut-off events. [2021-03-11 20:23:32,878 INFO L130 PetriNetUnfolder]: For 220/280 co-relation queries the response was YES. [2021-03-11 20:23:32,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 82 events. 18/82 cut-off events. For 220/280 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 345 event pairs, 1 based on Foata normal form. 30/108 useless extension candidates. Maximal degree in co-relation 305. Up to 35 conditions per place. [2021-03-11 20:23:32,878 INFO L132 encePairwiseOnDemand]: 117/123 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2021-03-11 20:23:32,878 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 26 transitions, 174 flow [2021-03-11 20:23:32,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 20:23:32,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-11 20:23:32,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 564 transitions. [2021-03-11 20:23:32,880 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7642276422764228 [2021-03-11 20:23:32,880 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 564 transitions. [2021-03-11 20:23:32,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 564 transitions. [2021-03-11 20:23:32,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:23:32,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 564 transitions. [2021-03-11 20:23:32,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 123.0) internal successors, (861), 7 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,882 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 123.0) internal successors, (861), 7 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,882 INFO L185 Difference]: Start difference. First operand has 45 places, 26 transitions, 164 flow. Second operand 6 states and 564 transitions. [2021-03-11 20:23:32,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 26 transitions, 174 flow [2021-03-11 20:23:32,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 26 transitions, 151 flow, removed 0 selfloop flow, removed 7 redundant places. [2021-03-11 20:23:32,883 INFO L241 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2021-03-11 20:23:32,883 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2021-03-11 20:23:32,883 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 15 predicate places. [2021-03-11 20:23:32,883 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 0 transitions, 0 flow [2021-03-11 20:23:32,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:23:32,884 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 20:23:32,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 08:23:32 BasicIcfg [2021-03-11 20:23:32,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 20:23:32,887 INFO L168 Benchmark]: Toolchain (without parser) took 4317.63 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 324.7 MB in the beginning and 224.0 MB in the end (delta: 100.7 MB). Peak memory consumption was 176.4 MB. Max. memory is 16.0 GB. [2021-03-11 20:23:32,887 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 360.7 MB. Free memory was 342.5 MB in the beginning and 342.5 MB in the end (delta: 70.5 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 20:23:32,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.31 ms. Allocated memory is still 360.7 MB. Free memory was 324.0 MB in the beginning and 321.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.0 GB. [2021-03-11 20:23:32,889 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.76 ms. Allocated memory is still 360.7 MB. Free memory was 321.5 MB in the beginning and 319.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 20:23:32,890 INFO L168 Benchmark]: Boogie Preprocessor took 11.86 ms. Allocated memory is still 360.7 MB. Free memory was 319.6 MB in the beginning and 318.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 20:23:32,891 INFO L168 Benchmark]: RCFGBuilder took 459.10 ms. Allocated memory is still 360.7 MB. Free memory was 318.0 MB in the beginning and 334.4 MB in the end (delta: -16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-11 20:23:32,891 INFO L168 Benchmark]: TraceAbstraction took 3471.76 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 334.0 MB in the beginning and 224.0 MB in the end (delta: 110.1 MB). Peak memory consumption was 184.5 MB. Max. memory is 16.0 GB. [2021-03-11 20:23:32,895 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 360.7 MB. Free memory was 342.5 MB in the beginning and 342.5 MB in the end (delta: 70.5 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 346.31 ms. Allocated memory is still 360.7 MB. Free memory was 324.0 MB in the beginning and 321.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 21.76 ms. Allocated memory is still 360.7 MB. Free memory was 321.5 MB in the beginning and 319.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.86 ms. Allocated memory is still 360.7 MB. Free memory was 319.6 MB in the beginning and 318.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 459.10 ms. Allocated memory is still 360.7 MB. Free memory was 318.0 MB in the beginning and 334.4 MB in the end (delta: -16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3471.76 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 334.0 MB in the beginning and 224.0 MB in the end (delta: 110.1 MB). Peak memory consumption was 184.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2306.6ms, 69 PlacesBefore, 27 PlacesAfterwards, 60 TransitionsBefore, 18 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 48 TotalNumberOfCompositions, 1722 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1106, positive: 1030, positive conditional: 0, positive unconditional: 1030, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 659, positive: 623, positive conditional: 0, positive unconditional: 623, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 659, positive: 610, positive conditional: 0, positive unconditional: 610, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 162, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 117, negative conditional: 0, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1106, positive: 407, positive conditional: 0, positive unconditional: 407, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 659, unknown conditional: 0, unknown unconditional: 659] , Statistics on independence cache: Total cache size (in pairs): 75, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 13.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3395.9ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 319.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2366.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 35 SDtfs, 10 SDslu, 14 SDs, 0 SdLazy, 74 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 54.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 94.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=6, 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: 14.0ms SsaConstructionTime, 143.5ms SatisfiabilityAnalysisTime, 388.6ms InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 319 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...