/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-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 18:32:02,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 18:32:02,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 18:32:02,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 18:32:02,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 18:32:02,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 18:32:02,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 18:32:02,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 18:32:02,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 18:32:02,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 18:32:02,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 18:32:02,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 18:32:02,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 18:32:02,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 18:32:02,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 18:32:02,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 18:32:02,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 18:32:02,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 18:32:02,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 18:32:02,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 18:32:02,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 18:32:02,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 18:32:02,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 18:32:02,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 18:32:02,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 18:32:02,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 18:32:02,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 18:32:02,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 18:32:02,373 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 [2021-03-24 18:32:02,406 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 18:32:02,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 18:32:02,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 18:32:02,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 18:32:02,410 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 18:32:02,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 18:32:02,410 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 18:32:02,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 18:32:02,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 18:32:02,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 18:32:02,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 18:32:02,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 18:32:02,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 18:32:02,412 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 18:32:02,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 18:32:02,412 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 18:32:02,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 18:32:02,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 18:32:02,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 18:32:02,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 18:32:02,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 18:32:02,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 18:32:02,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 18:32:02,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 18:32:02,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 18:32:02,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 18:32:02,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 18:32:02,415 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 18:32:02,415 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 18:32:02,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 18:32:02,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 18:32:02,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 18:32:02,742 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 18:32:02,743 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 18:32:02,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2021-03-24 18:32:02,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4097ba5/00c9be08387146faaf9e4f332df9207a/FLAGb316d0321 [2021-03-24 18:32:03,314 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 18:32:03,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2021-03-24 18:32:03,329 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4097ba5/00c9be08387146faaf9e4f332df9207a/FLAGb316d0321 [2021-03-24 18:32:03,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4097ba5/00c9be08387146faaf9e4f332df9207a [2021-03-24 18:32:03,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 18:32:03,618 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 18:32:03,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 18:32:03,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 18:32:03,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 18:32:03,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 06:32:03" (1/1) ... [2021-03-24 18:32:03,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@681584f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:03, skipping insertion in model container [2021-03-24 18:32:03,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 06:32:03" (1/1) ... [2021-03-24 18:32:03,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 18:32:03,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 18:32:03,793 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-24 18:32:03,932 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-atomic/dekker.i[31403,31416] [2021-03-24 18:32:03,937 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-atomic/dekker.i[32483,32496] [2021-03-24 18:32:03,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 18:32:03,946 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 18:32:03,957 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-24 18:32:03,973 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-atomic/dekker.i[31403,31416] [2021-03-24 18:32:03,976 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-atomic/dekker.i[32483,32496] [2021-03-24 18:32:03,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 18:32:04,045 INFO L208 MainTranslator]: Completed translation [2021-03-24 18:32:04,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:04 WrapperNode [2021-03-24 18:32:04,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 18:32:04,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 18:32:04,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 18:32:04,047 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 18:32:04,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:04" (1/1) ... [2021-03-24 18:32:04,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:04" (1/1) ... [2021-03-24 18:32:04,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 18:32:04,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 18:32:04,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 18:32:04,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 18:32:04,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:04" (1/1) ... [2021-03-24 18:32:04,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:04" (1/1) ... [2021-03-24 18:32:04,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:04" (1/1) ... [2021-03-24 18:32:04,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:04" (1/1) ... [2021-03-24 18:32:04,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:04" (1/1) ... [2021-03-24 18:32:04,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:04" (1/1) ... [2021-03-24 18:32:04,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:04" (1/1) ... [2021-03-24 18:32:04,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 18:32:04,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 18:32:04,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 18:32:04,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 18:32:04,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 18:32:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-24 18:32:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-03-24 18:32:04,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-03-24 18:32:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-03-24 18:32:04,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-03-24 18:32:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 18:32:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 18:32:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 18:32:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 18:32:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 18:32:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 18:32:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 18:32:04,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 18:32:04,178 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 18:32:04,481 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 18:32:04,481 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-24 18:32:04,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 06:32:04 BoogieIcfgContainer [2021-03-24 18:32:04,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 18:32:04,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 18:32:04,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 18:32:04,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 18:32:04,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 06:32:03" (1/3) ... [2021-03-24 18:32:04,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a99887a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 06:32:04, skipping insertion in model container [2021-03-24 18:32:04,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:32:04" (2/3) ... [2021-03-24 18:32:04,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a99887a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 06:32:04, skipping insertion in model container [2021-03-24 18:32:04,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 06:32:04" (3/3) ... [2021-03-24 18:32:04,488 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker.i [2021-03-24 18:32:04,493 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 18:32:04,496 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-24 18:32:04,497 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 18:32:04,520 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,520 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,520 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,520 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,521 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,521 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,521 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,521 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,521 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,521 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,521 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,522 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,522 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,522 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,522 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,522 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,523 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,523 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,523 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,523 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,523 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,524 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,524 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,524 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,524 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,524 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,524 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,524 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,526 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,526 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,526 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,526 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,527 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,527 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,527 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,527 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,527 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,527 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,527 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,528 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,528 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,528 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,528 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,528 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,528 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,529 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,529 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,529 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,529 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,529 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,530 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,530 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,530 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,530 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,530 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,530 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,530 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,533 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,533 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,533 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,533 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,533 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,533 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,537 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,538 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,538 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,538 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,538 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,538 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:32:04,544 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-24 18:32:04,560 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-24 18:32:04,577 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 18:32:04,577 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 18:32:04,577 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 18:32:04,577 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 18:32:04,577 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 18:32:04,577 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 18:32:04,577 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 18:32:04,577 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 18:32:04,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 96 transitions, 214 flow [2021-03-24 18:32:04,617 INFO L129 PetriNetUnfolder]: 14/96 cut-off events. [2021-03-24 18:32:04,617 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 18:32:04,621 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 96 events. 14/96 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 160 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2021-03-24 18:32:04,621 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 96 transitions, 214 flow [2021-03-24 18:32:04,625 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 84 transitions, 180 flow [2021-03-24 18:32:04,626 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 18:32:04,637 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 84 transitions, 180 flow [2021-03-24 18:32:04,639 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 84 transitions, 180 flow [2021-03-24 18:32:04,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 84 transitions, 180 flow [2021-03-24 18:32:04,656 INFO L129 PetriNetUnfolder]: 13/86 cut-off events. [2021-03-24 18:32:04,656 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-24 18:32:04,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 86 events. 13/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 154 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-03-24 18:32:04,659 INFO L142 LiptonReduction]: Number of co-enabled transitions 2028 [2021-03-24 18:32:05,987 INFO L154 LiptonReduction]: Checked pairs total: 1427 [2021-03-24 18:32:05,987 INFO L156 LiptonReduction]: Total number of compositions: 52 [2021-03-24 18:32:05,989 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1364 [2021-03-24 18:32:05,997 INFO L129 PetriNetUnfolder]: 1/16 cut-off events. [2021-03-24 18:32:05,997 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 18:32:05,997 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:05,998 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:05,998 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 18:32:06,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:06,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1854467217, now seen corresponding path program 1 times [2021-03-24 18:32:06,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:06,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130499107] [2021-03-24 18:32:06,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:06,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:06,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:06,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:06,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:06,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 18:32:06,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130499107] [2021-03-24 18:32:06,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:06,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 18:32:06,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315084023] [2021-03-24 18:32:06,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-24 18:32:06,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:06,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-24 18:32:06,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-24 18:32:06,133 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 148 [2021-03-24 18:32:06,134 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 45 transitions, 102 flow. Second operand has 2 states, 2 states have (on average 130.5) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:06,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 148 [2021-03-24 18:32:06,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:06,144 INFO L129 PetriNetUnfolder]: 6/43 cut-off events. [2021-03-24 18:32:06,144 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-24 18:32:06,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 43 events. 6/43 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 83 event pairs, 0 based on Foata normal form. 2/37 useless extension candidates. Maximal degree in co-relation 49. Up to 3 conditions per place. [2021-03-24 18:32:06,146 INFO L132 encePairwiseOnDemand]: 146/148 looper letters, 0 selfloop transitions, 0 changer transitions 0/42 dead transitions. [2021-03-24 18:32:06,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 42 transitions, 96 flow [2021-03-24 18:32:06,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-24 18:32:06,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-24 18:32:06,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 262 transitions. [2021-03-24 18:32:06,155 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8851351351351351 [2021-03-24 18:32:06,156 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 262 transitions. [2021-03-24 18:32:06,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 262 transitions. [2021-03-24 18:32:06,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:06,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 262 transitions. [2021-03-24 18:32:06,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 131.0) internal successors, (262), 2 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,165 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,166 INFO L185 Difference]: Start difference. First operand has 43 places, 45 transitions, 102 flow. Second operand 2 states and 262 transitions. [2021-03-24 18:32:06,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 42 transitions, 96 flow [2021-03-24 18:32:06,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 42 transitions, 88 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-24 18:32:06,170 INFO L241 Difference]: Finished difference. Result has 39 places, 42 transitions, 88 flow [2021-03-24 18:32:06,171 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=88, PETRI_PLACES=39, PETRI_TRANSITIONS=42} [2021-03-24 18:32:06,172 INFO L343 CegarLoopForPetriNet]: 43 programPoint places, -4 predicate places. [2021-03-24 18:32:06,172 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 42 transitions, 88 flow [2021-03-24 18:32:06,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 130.5) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,172 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:06,173 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:06,173 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 18:32:06,173 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 18:32:06,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:06,174 INFO L82 PathProgramCache]: Analyzing trace with hash 120944202, now seen corresponding path program 1 times [2021-03-24 18:32:06,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:06,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342578091] [2021-03-24 18:32:06,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:06,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:06,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:06,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:06,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:06,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 18:32:06,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342578091] [2021-03-24 18:32:06,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:06,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 18:32:06,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256503507] [2021-03-24 18:32:06,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 18:32:06,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:06,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 18:32:06,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 18:32:06,228 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 148 [2021-03-24 18:32:06,228 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 42 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,228 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:06,228 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 148 [2021-03-24 18:32:06,228 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:06,252 INFO L129 PetriNetUnfolder]: 13/84 cut-off events. [2021-03-24 18:32:06,252 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 18:32:06,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 84 events. 13/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 300 event pairs, 2 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 114. Up to 18 conditions per place. [2021-03-24 18:32:06,253 INFO L132 encePairwiseOnDemand]: 143/148 looper letters, 7 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2021-03-24 18:32:06,253 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 114 flow [2021-03-24 18:32:06,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 18:32:06,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 18:32:06,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2021-03-24 18:32:06,255 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7837837837837838 [2021-03-24 18:32:06,256 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 348 transitions. [2021-03-24 18:32:06,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 348 transitions. [2021-03-24 18:32:06,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:06,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 348 transitions. [2021-03-24 18:32:06,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,260 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,260 INFO L185 Difference]: Start difference. First operand has 39 places, 42 transitions, 88 flow. Second operand 3 states and 348 transitions. [2021-03-24 18:32:06,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 114 flow [2021-03-24 18:32:06,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 45 transitions, 114 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-24 18:32:06,262 INFO L241 Difference]: Finished difference. Result has 43 places, 43 transitions, 108 flow [2021-03-24 18:32:06,262 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=43, PETRI_TRANSITIONS=43} [2021-03-24 18:32:06,263 INFO L343 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2021-03-24 18:32:06,263 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 43 transitions, 108 flow [2021-03-24 18:32:06,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,263 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:06,263 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:06,264 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 18:32:06,264 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 18:32:06,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:06,264 INFO L82 PathProgramCache]: Analyzing trace with hash -342735586, now seen corresponding path program 1 times [2021-03-24 18:32:06,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:06,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174993225] [2021-03-24 18:32:06,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:06,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:06,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:06,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:06,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 18:32:06,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 18:32:06,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174993225] [2021-03-24 18:32:06,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:06,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 18:32:06,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303239607] [2021-03-24 18:32:06,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 18:32:06,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:06,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 18:32:06,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 18:32:06,320 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 148 [2021-03-24 18:32:06,320 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 43 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,320 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:06,320 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 148 [2021-03-24 18:32:06,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:06,351 INFO L129 PetriNetUnfolder]: 8/71 cut-off events. [2021-03-24 18:32:06,351 INFO L130 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2021-03-24 18:32:06,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 71 events. 8/71 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 238 event pairs, 2 based on Foata normal form. 6/72 useless extension candidates. Maximal degree in co-relation 111. Up to 11 conditions per place. [2021-03-24 18:32:06,352 INFO L132 encePairwiseOnDemand]: 144/148 looper letters, 6 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2021-03-24 18:32:06,352 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 43 transitions, 124 flow [2021-03-24 18:32:06,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 18:32:06,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 18:32:06,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2021-03-24 18:32:06,358 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7792792792792793 [2021-03-24 18:32:06,358 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 346 transitions. [2021-03-24 18:32:06,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 346 transitions. [2021-03-24 18:32:06,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:06,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 346 transitions. [2021-03-24 18:32:06,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,361 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,361 INFO L185 Difference]: Start difference. First operand has 43 places, 43 transitions, 108 flow. Second operand 3 states and 346 transitions. [2021-03-24 18:32:06,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 43 transitions, 124 flow [2021-03-24 18:32:06,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 43 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 18:32:06,364 INFO L241 Difference]: Finished difference. Result has 44 places, 43 transitions, 112 flow [2021-03-24 18:32:06,364 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=44, PETRI_TRANSITIONS=43} [2021-03-24 18:32:06,364 INFO L343 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2021-03-24 18:32:06,364 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 43 transitions, 112 flow [2021-03-24 18:32:06,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,364 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:06,364 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:06,365 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 18:32:06,365 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 18:32:06,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:06,365 INFO L82 PathProgramCache]: Analyzing trace with hash 401709510, now seen corresponding path program 1 times [2021-03-24 18:32:06,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:06,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573196372] [2021-03-24 18:32:06,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:06,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:06,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:06,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:06,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:06,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:06,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 18:32:06,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:06,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:06,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 18:32:06,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573196372] [2021-03-24 18:32:06,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:06,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 18:32:06,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645388226] [2021-03-24 18:32:06,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 18:32:06,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:06,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 18:32:06,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 18:32:06,428 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 148 [2021-03-24 18:32:06,428 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 43 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,428 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:06,428 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 148 [2021-03-24 18:32:06,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:06,476 INFO L129 PetriNetUnfolder]: 58/202 cut-off events. [2021-03-24 18:32:06,476 INFO L130 PetriNetUnfolder]: For 67/68 co-relation queries the response was YES. [2021-03-24 18:32:06,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 202 events. 58/202 cut-off events. For 67/68 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 957 event pairs, 9 based on Foata normal form. 6/199 useless extension candidates. Maximal degree in co-relation 323. Up to 36 conditions per place. [2021-03-24 18:32:06,478 INFO L132 encePairwiseOnDemand]: 140/148 looper letters, 14 selfloop transitions, 12 changer transitions 0/58 dead transitions. [2021-03-24 18:32:06,478 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 58 transitions, 200 flow [2021-03-24 18:32:06,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 18:32:06,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 18:32:06,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 573 transitions. [2021-03-24 18:32:06,480 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7743243243243243 [2021-03-24 18:32:06,480 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 573 transitions. [2021-03-24 18:32:06,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 573 transitions. [2021-03-24 18:32:06,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:06,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 573 transitions. [2021-03-24 18:32:06,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,485 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,485 INFO L185 Difference]: Start difference. First operand has 44 places, 43 transitions, 112 flow. Second operand 5 states and 573 transitions. [2021-03-24 18:32:06,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 58 transitions, 200 flow [2021-03-24 18:32:06,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 58 transitions, 197 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 18:32:06,487 INFO L241 Difference]: Finished difference. Result has 50 places, 51 transitions, 182 flow [2021-03-24 18:32:06,487 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=182, PETRI_PLACES=50, PETRI_TRANSITIONS=51} [2021-03-24 18:32:06,487 INFO L343 CegarLoopForPetriNet]: 43 programPoint places, 7 predicate places. [2021-03-24 18:32:06,487 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 51 transitions, 182 flow [2021-03-24 18:32:06,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,488 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:32:06,488 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:32:06,488 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 18:32:06,488 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 18:32:06,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:32:06,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1312151892, now seen corresponding path program 2 times [2021-03-24 18:32:06,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:32:06,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681131759] [2021-03-24 18:32:06,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:32:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:32:06,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:06,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:06,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:06,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:32:06,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:06,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 18:32:06,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:32:06,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:32:06,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 18:32:06,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681131759] [2021-03-24 18:32:06,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:32:06,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 18:32:06,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495742537] [2021-03-24 18:32:06,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 18:32:06,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:32:06,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 18:32:06,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 18:32:06,528 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 148 [2021-03-24 18:32:06,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 51 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:32:06,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 148 [2021-03-24 18:32:06,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:32:06,577 INFO L129 PetriNetUnfolder]: 106/273 cut-off events. [2021-03-24 18:32:06,577 INFO L130 PetriNetUnfolder]: For 87/91 co-relation queries the response was YES. [2021-03-24 18:32:06,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 273 events. 106/273 cut-off events. For 87/91 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1257 event pairs, 7 based on Foata normal form. 10/280 useless extension candidates. Maximal degree in co-relation 532. Up to 49 conditions per place. [2021-03-24 18:32:06,579 INFO L132 encePairwiseOnDemand]: 140/148 looper letters, 0 selfloop transitions, 0 changer transitions 63/63 dead transitions. [2021-03-24 18:32:06,579 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 63 transitions, 256 flow [2021-03-24 18:32:06,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 18:32:06,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 18:32:06,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 562 transitions. [2021-03-24 18:32:06,581 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7594594594594595 [2021-03-24 18:32:06,581 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 562 transitions. [2021-03-24 18:32:06,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 562 transitions. [2021-03-24 18:32:06,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:32:06,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 562 transitions. [2021-03-24 18:32:06,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 112.4) internal successors, (562), 5 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,585 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,585 INFO L185 Difference]: Start difference. First operand has 50 places, 51 transitions, 182 flow. Second operand 5 states and 562 transitions. [2021-03-24 18:32:06,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 63 transitions, 256 flow [2021-03-24 18:32:06,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 63 transitions, 252 flow, removed 2 selfloop flow, removed 0 redundant places. [2021-03-24 18:32:06,588 INFO L241 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2021-03-24 18:32:06,588 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2021-03-24 18:32:06,588 INFO L343 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2021-03-24 18:32:06,588 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2021-03-24 18:32:06,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:32:06,589 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 18:32:06,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 06:32:06 BasicIcfg [2021-03-24 18:32:06,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 18:32:06,593 INFO L168 Benchmark]: Toolchain (without parser) took 2975.11 ms. Allocated memory is still 343.9 MB. Free memory was 307.1 MB in the beginning and 145.7 MB in the end (delta: 161.4 MB). Peak memory consumption was 164.2 MB. Max. memory is 16.0 GB. [2021-03-24 18:32:06,593 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 343.9 MB. Free memory was 325.3 MB in the beginning and 325.2 MB in the end (delta: 71.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 18:32:06,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.85 ms. Allocated memory is still 343.9 MB. Free memory was 306.9 MB in the beginning and 305.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.0 GB. [2021-03-24 18:32:06,594 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.10 ms. Allocated memory is still 343.9 MB. Free memory was 305.8 MB in the beginning and 303.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 18:32:06,595 INFO L168 Benchmark]: Boogie Preprocessor took 22.52 ms. Allocated memory is still 343.9 MB. Free memory was 303.7 MB in the beginning and 302.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 18:32:06,595 INFO L168 Benchmark]: RCFGBuilder took 366.52 ms. Allocated memory is still 343.9 MB. Free memory was 302.7 MB in the beginning and 277.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-24 18:32:06,596 INFO L168 Benchmark]: TraceAbstraction took 2108.03 ms. Allocated memory is still 343.9 MB. Free memory was 276.5 MB in the beginning and 145.7 MB in the end (delta: 130.7 MB). Peak memory consumption was 133.9 MB. Max. memory is 16.0 GB. [2021-03-24 18:32:06,598 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 343.9 MB. Free memory was 325.3 MB in the beginning and 325.2 MB in the end (delta: 71.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 424.85 ms. Allocated memory is still 343.9 MB. Free memory was 306.9 MB in the beginning and 305.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 46.10 ms. Allocated memory is still 343.9 MB. Free memory was 305.8 MB in the beginning and 303.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 22.52 ms. Allocated memory is still 343.9 MB. Free memory was 303.7 MB in the beginning and 302.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 366.52 ms. Allocated memory is still 343.9 MB. Free memory was 302.7 MB in the beginning and 277.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2108.03 ms. Allocated memory is still 343.9 MB. Free memory was 276.5 MB in the beginning and 145.7 MB in the end (delta: 130.7 MB). Peak memory consumption was 133.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1348.2ms, 77 PlacesBefore, 43 PlacesAfterwards, 84 TransitionsBefore, 45 TransitionsAfterwards, 2028 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 12 ConcurrentYvCompositions, 5 ChoiceCompositions, 52 TotalNumberOfCompositions, 1427 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1138, positive: 1118, positive conditional: 0, positive unconditional: 1118, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 983, positive: 969, positive conditional: 0, positive unconditional: 969, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 983, positive: 969, positive conditional: 0, positive unconditional: 969, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 983, positive: 962, positive conditional: 0, positive unconditional: 962, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 47, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1138, positive: 149, positive conditional: 0, positive unconditional: 149, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 983, unknown conditional: 0, unknown unconditional: 983] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - PositiveResult [Line: 780]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 739]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 82 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2016.4ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 247.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1416.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 46 SDtfs, 24 SDslu, 16 SDs, 0 SdLazy, 69 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 48.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred in iteration=4, InterpolantAutomatonStates: 18, 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: 9.3ms SsaConstructionTime, 51.8ms SatisfiabilityAnalysisTime, 168.9ms InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 83 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...