/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-NoLbe-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_08-cond_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 05:52:04,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 05:52:04,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 05:52:04,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 05:52:04,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 05:52:04,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 05:52:04,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 05:52:04,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 05:52:04,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 05:52:04,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 05:52:04,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 05:52:04,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 05:52:04,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 05:52:04,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 05:52:04,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 05:52:04,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 05:52:04,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 05:52:04,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 05:52:04,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 05:52:04,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 05:52:04,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 05:52:04,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 05:52:04,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 05:52:04,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 05:52:05,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 05:52:05,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 05:52:05,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 05:52:05,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 05:52:05,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 05:52:05,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-01-19 05:52:05,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 05:52:05,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 05:52:05,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 05:52:05,017 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-Before.epf [2022-01-19 05:52:05,045 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 05:52:05,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 05:52:05,046 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 05:52:05,046 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 05:52:05,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 05:52:05,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 05:52:05,047 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 05:52:05,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 05:52:05,048 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 05:52:05,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 05:52:05,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 05:52:05,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 05:52:05,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 05:52:05,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 05:52:05,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 05:52:05,048 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 05:52:05,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 05:52:05,049 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 05:52:05,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 05:52:05,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 05:52:05,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 05:52:05,049 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 05:52:05,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 05:52:05,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 05:52:05,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 05:52:05,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 05:52:05,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 05:52:05,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 05:52:05,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 05:52:05,050 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 05:52:05,050 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 05:52:05,050 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 05:52:05,050 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 05:52:05,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 05:52:05,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 05:52:05,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 05:52:05,264 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 05:52:05,268 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 05:52:05,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_08-cond_racefree.i [2022-01-19 05:52:05,326 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c0247bf4/389f94e6be7d4939b3eadcaaa0c39b04/FLAG988bf7ef6 [2022-01-19 05:52:05,768 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 05:52:05,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_08-cond_racefree.i [2022-01-19 05:52:05,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c0247bf4/389f94e6be7d4939b3eadcaaa0c39b04/FLAG988bf7ef6 [2022-01-19 05:52:05,810 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c0247bf4/389f94e6be7d4939b3eadcaaa0c39b04 [2022-01-19 05:52:05,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 05:52:05,814 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 05:52:05,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 05:52:05,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 05:52:05,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 05:52:05,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 05:52:05" (1/1) ... [2022-01-19 05:52:05,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f3bf07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:52:05, skipping insertion in model container [2022-01-19 05:52:05,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 05:52:05" (1/1) ... [2022-01-19 05:52:05,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 05:52:05,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 05:52:06,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_08-cond_racefree.i[41322,41335] [2022-01-19 05:52:06,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 05:52:06,368 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 05:52:06,403 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_08-cond_racefree.i[41322,41335] [2022-01-19 05:52:06,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 05:52:06,478 INFO L208 MainTranslator]: Completed translation [2022-01-19 05:52:06,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:52:06 WrapperNode [2022-01-19 05:52:06,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 05:52:06,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 05:52:06,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 05:52:06,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 05:52:06,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:52:06" (1/1) ... [2022-01-19 05:52:06,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:52:06" (1/1) ... [2022-01-19 05:52:06,539 INFO L137 Inliner]: procedures = 270, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 92 [2022-01-19 05:52:06,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 05:52:06,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 05:52:06,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 05:52:06,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 05:52:06,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:52:06" (1/1) ... [2022-01-19 05:52:06,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:52:06" (1/1) ... [2022-01-19 05:52:06,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:52:06" (1/1) ... [2022-01-19 05:52:06,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:52:06" (1/1) ... [2022-01-19 05:52:06,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:52:06" (1/1) ... [2022-01-19 05:52:06,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:52:06" (1/1) ... [2022-01-19 05:52:06,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:52:06" (1/1) ... [2022-01-19 05:52:06,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 05:52:06,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 05:52:06,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 05:52:06,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 05:52:06,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:52:06" (1/1) ... [2022-01-19 05:52:06,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 05:52:06,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:52:06,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 05:52:06,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 05:52:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 05:52:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 05:52:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 05:52:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 05:52:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 05:52:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 05:52:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-01-19 05:52:06,674 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-01-19 05:52:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 05:52:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 05:52:06,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 05:52:06,677 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 05:52:06,767 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 05:52:06,768 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 05:52:06,979 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 05:52:06,986 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 05:52:06,987 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-01-19 05:52:06,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 05:52:06 BoogieIcfgContainer [2022-01-19 05:52:06,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 05:52:06,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 05:52:06,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 05:52:06,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 05:52:06,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 05:52:05" (1/3) ... [2022-01-19 05:52:06,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d1ed37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 05:52:06, skipping insertion in model container [2022-01-19 05:52:06,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:52:06" (2/3) ... [2022-01-19 05:52:06,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d1ed37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 05:52:06, skipping insertion in model container [2022-01-19 05:52:06,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 05:52:06" (3/3) ... [2022-01-19 05:52:07,000 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_08-cond_racefree.i [2022-01-19 05:52:07,004 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 05:52:07,004 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 05:52:07,004 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 05:52:07,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,036 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,036 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,037 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,037 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,046 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,047 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:07,051 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-19 05:52:07,097 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:52:07,103 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:52:07,104 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-19 05:52:07,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 117 places, 129 transitions, 266 flow [2022-01-19 05:52:07,188 INFO L129 PetriNetUnfolder]: 23/174 cut-off events. [2022-01-19 05:52:07,188 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 05:52:07,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 174 events. 23/174 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 387 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 89. Up to 6 conditions per place. [2022-01-19 05:52:07,194 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 129 transitions, 266 flow [2022-01-19 05:52:07,199 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 124 transitions, 253 flow [2022-01-19 05:52:07,221 INFO L129 PetriNetUnfolder]: 8/112 cut-off events. [2022-01-19 05:52:07,221 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:52:07,222 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:07,222 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:07,223 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:07,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:07,228 INFO L85 PathProgramCache]: Analyzing trace with hash -921644928, now seen corresponding path program 1 times [2022-01-19 05:52:07,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:07,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069267777] [2022-01-19 05:52:07,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:07,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:07,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:07,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069267777] [2022-01-19 05:52:07,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069267777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:07,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:52:07,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 05:52:07,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51672946] [2022-01-19 05:52:07,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:07,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 05:52:07,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:07,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 05:52:07,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 05:52:07,512 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 129 [2022-01-19 05:52:07,519 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 124 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2022-01-19 05:52:07,519 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:07,520 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 129 [2022-01-19 05:52:07,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:07,594 INFO L129 PetriNetUnfolder]: 3/116 cut-off events. [2022-01-19 05:52:07,594 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:52:07,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 116 events. 3/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 141 event pairs, 0 based on Foata normal form. 22/132 useless extension candidates. Maximal degree in co-relation 71. Up to 6 conditions per place. [2022-01-19 05:52:07,597 INFO L132 encePairwiseOnDemand]: 115/129 looper letters, 6 selfloop transitions, 2 changer transitions 22/114 dead transitions. [2022-01-19 05:52:07,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 114 transitions, 253 flow [2022-01-19 05:52:07,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 05:52:07,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 05:52:07,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2022-01-19 05:52:07,648 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9121447028423773 [2022-01-19 05:52:07,649 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2022-01-19 05:52:07,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2022-01-19 05:52:07,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:07,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2022-01-19 05:52:07,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2022-01-19 05:52:07,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2022-01-19 05:52:07,665 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2022-01-19 05:52:07,666 INFO L186 Difference]: Start difference. First operand has 113 places, 124 transitions, 253 flow. Second operand 3 states and 353 transitions. [2022-01-19 05:52:07,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 114 transitions, 253 flow [2022-01-19 05:52:07,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 114 transitions, 253 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 05:52:07,673 INFO L242 Difference]: Finished difference. Result has 115 places, 92 transitions, 195 flow [2022-01-19 05:52:07,674 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=115, PETRI_TRANSITIONS=92} [2022-01-19 05:52:07,677 INFO L334 CegarLoopForPetriNet]: 113 programPoint places, 2 predicate places. [2022-01-19 05:52:07,677 INFO L470 AbstractCegarLoop]: Abstraction has has 115 places, 92 transitions, 195 flow [2022-01-19 05:52:07,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2022-01-19 05:52:07,678 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:07,678 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:07,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 05:52:07,678 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:07,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:07,679 INFO L85 PathProgramCache]: Analyzing trace with hash -804631742, now seen corresponding path program 1 times [2022-01-19 05:52:07,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:07,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001523319] [2022-01-19 05:52:07,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:07,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:07,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:07,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:07,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001523319] [2022-01-19 05:52:07,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001523319] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:52:07,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837736460] [2022-01-19 05:52:07,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:07,818 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:07,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:52:07,822 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:52:07,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-19 05:52:07,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:07,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-19 05:52:07,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:52:08,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 05:52:08,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 05:52:08,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837736460] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:08,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 05:52:08,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-19 05:52:08,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268670005] [2022-01-19 05:52:08,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:08,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 05:52:08,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:08,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 05:52:08,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 05:52:08,104 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 129 [2022-01-19 05:52:08,105 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 92 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2022-01-19 05:52:08,105 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:08,105 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 129 [2022-01-19 05:52:08,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:08,139 INFO L129 PetriNetUnfolder]: 0/97 cut-off events. [2022-01-19 05:52:08,140 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 05:52:08,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 97 events. 0/97 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 1/97 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2022-01-19 05:52:08,141 INFO L132 encePairwiseOnDemand]: 127/129 looper letters, 5 selfloop transitions, 0 changer transitions 1/92 dead transitions. [2022-01-19 05:52:08,142 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 92 transitions, 207 flow [2022-01-19 05:52:08,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 05:52:08,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 05:52:08,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 328 transitions. [2022-01-19 05:52:08,144 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8475452196382429 [2022-01-19 05:52:08,144 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 328 transitions. [2022-01-19 05:52:08,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 328 transitions. [2022-01-19 05:52:08,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:08,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 328 transitions. [2022-01-19 05:52:08,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2022-01-19 05:52:08,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2022-01-19 05:52:08,149 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2022-01-19 05:52:08,149 INFO L186 Difference]: Start difference. First operand has 115 places, 92 transitions, 195 flow. Second operand 3 states and 328 transitions. [2022-01-19 05:52:08,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 92 transitions, 207 flow [2022-01-19 05:52:08,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 92 transitions, 203 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 05:52:08,153 INFO L242 Difference]: Finished difference. Result has 98 places, 91 transitions, 191 flow [2022-01-19 05:52:08,153 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2022-01-19 05:52:08,154 INFO L334 CegarLoopForPetriNet]: 113 programPoint places, -15 predicate places. [2022-01-19 05:52:08,154 INFO L470 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 191 flow [2022-01-19 05:52:08,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2022-01-19 05:52:08,154 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:08,155 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:08,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-19 05:52:08,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:08,364 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:08,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:08,365 INFO L85 PathProgramCache]: Analyzing trace with hash -500091251, now seen corresponding path program 1 times [2022-01-19 05:52:08,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:08,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385342617] [2022-01-19 05:52:08,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:08,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:08,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:08,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:08,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385342617] [2022-01-19 05:52:08,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385342617] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:52:08,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985340082] [2022-01-19 05:52:08,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:08,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:08,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:52:08,460 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:52:08,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-19 05:52:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:08,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-19 05:52:08,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:52:08,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:08,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:52:08,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:08,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985340082] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:52:08,844 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:52:08,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-19 05:52:08,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884695804] [2022-01-19 05:52:08,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:52:08,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 05:52:08,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:08,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 05:52:08,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-19 05:52:08,853 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 129 [2022-01-19 05:52:08,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 191 flow. Second operand has 10 states, 10 states have (on average 109.3) internal successors, (1093), 10 states have internal predecessors, (1093), 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) [2022-01-19 05:52:08,854 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:08,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 129 [2022-01-19 05:52:08,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:08,912 INFO L129 PetriNetUnfolder]: 0/80 cut-off events. [2022-01-19 05:52:08,912 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 05:52:08,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 80 events. 0/80 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-01-19 05:52:08,913 INFO L132 encePairwiseOnDemand]: 124/129 looper letters, 0 selfloop transitions, 0 changer transitions 78/78 dead transitions. [2022-01-19 05:52:08,913 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 78 transitions, 181 flow [2022-01-19 05:52:08,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 05:52:08,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 05:52:08,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 653 transitions. [2022-01-19 05:52:08,915 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8436692506459949 [2022-01-19 05:52:08,915 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 653 transitions. [2022-01-19 05:52:08,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 653 transitions. [2022-01-19 05:52:08,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:08,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 653 transitions. [2022-01-19 05:52:08,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 108.83333333333333) internal successors, (653), 6 states have internal predecessors, (653), 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) [2022-01-19 05:52:08,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 129.0) internal successors, (903), 7 states have internal predecessors, (903), 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) [2022-01-19 05:52:08,920 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 129.0) internal successors, (903), 7 states have internal predecessors, (903), 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) [2022-01-19 05:52:08,920 INFO L186 Difference]: Start difference. First operand has 98 places, 91 transitions, 191 flow. Second operand 6 states and 653 transitions. [2022-01-19 05:52:08,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 78 transitions, 181 flow [2022-01-19 05:52:08,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 78 transitions, 179 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 05:52:08,922 INFO L242 Difference]: Finished difference. Result has 86 places, 0 transitions, 0 flow [2022-01-19 05:52:08,922 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=86, PETRI_TRANSITIONS=0} [2022-01-19 05:52:08,923 INFO L334 CegarLoopForPetriNet]: 113 programPoint places, -27 predicate places. [2022-01-19 05:52:08,923 INFO L470 AbstractCegarLoop]: Abstraction has has 86 places, 0 transitions, 0 flow [2022-01-19 05:52:08,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 109.3) internal successors, (1093), 10 states have internal predecessors, (1093), 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) [2022-01-19 05:52:08,926 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-19 05:52:08,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-19 05:52:09,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-19 05:52:09,134 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-19 05:52:09,135 INFO L309 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2022-01-19 05:52:09,138 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-19 05:52:09,138 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:52:09,138 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-19 05:52:09,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 117 places, 129 transitions, 266 flow [2022-01-19 05:52:09,155 INFO L129 PetriNetUnfolder]: 23/174 cut-off events. [2022-01-19 05:52:09,155 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 05:52:09,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 174 events. 23/174 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 387 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 89. Up to 6 conditions per place. [2022-01-19 05:52:09,156 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 129 transitions, 266 flow [2022-01-19 05:52:09,157 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 124 transitions, 253 flow [2022-01-19 05:52:09,167 INFO L129 PetriNetUnfolder]: 15/135 cut-off events. [2022-01-19 05:52:09,168 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:52:09,168 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:09,168 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:09,168 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:52:09,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:09,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1426448650, now seen corresponding path program 1 times [2022-01-19 05:52:09,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:09,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354663452] [2022-01-19 05:52:09,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:09,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:52:09,194 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 05:52:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:52:09,240 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 05:52:09,240 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 05:52:09,240 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-19 05:52:09,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 05:52:09,241 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-19 05:52:09,243 INFO L309 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-19 05:52:09,244 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 05:52:09,244 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-01-19 05:52:09,264 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,264 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,264 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,264 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,264 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,264 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,265 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,265 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,270 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,270 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,270 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,270 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,275 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,276 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,277 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,277 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:09,280 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-19 05:52:09,281 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:52:09,282 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:52:09,282 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-19 05:52:09,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 142 places, 159 transitions, 336 flow [2022-01-19 05:52:09,313 INFO L129 PetriNetUnfolder]: 40/274 cut-off events. [2022-01-19 05:52:09,313 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-01-19 05:52:09,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 274 events. 40/274 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 769 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 176. Up to 9 conditions per place. [2022-01-19 05:52:09,316 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 159 transitions, 336 flow [2022-01-19 05:52:09,320 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 159 transitions, 336 flow [2022-01-19 05:52:09,331 INFO L129 PetriNetUnfolder]: 8/108 cut-off events. [2022-01-19 05:52:09,331 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:52:09,331 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:09,332 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:09,332 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:09,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:09,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1275501409, now seen corresponding path program 1 times [2022-01-19 05:52:09,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:09,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46411660] [2022-01-19 05:52:09,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:09,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:09,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:09,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:09,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46411660] [2022-01-19 05:52:09,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46411660] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:09,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:52:09,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 05:52:09,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66384864] [2022-01-19 05:52:09,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:09,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 05:52:09,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:09,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 05:52:09,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 05:52:09,400 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 159 [2022-01-19 05:52:09,400 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 159 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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) [2022-01-19 05:52:09,400 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:09,400 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 159 [2022-01-19 05:52:09,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:09,453 INFO L129 PetriNetUnfolder]: 8/217 cut-off events. [2022-01-19 05:52:09,453 INFO L130 PetriNetUnfolder]: For 26/67 co-relation queries the response was YES. [2022-01-19 05:52:09,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 217 events. 8/217 cut-off events. For 26/67 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 533 event pairs, 0 based on Foata normal form. 78/281 useless extension candidates. Maximal degree in co-relation 143. Up to 16 conditions per place. [2022-01-19 05:52:09,455 INFO L132 encePairwiseOnDemand]: 139/159 looper letters, 11 selfloop transitions, 2 changer transitions 26/145 dead transitions. [2022-01-19 05:52:09,456 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 145 transitions, 338 flow [2022-01-19 05:52:09,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 05:52:09,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 05:52:09,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 430 transitions. [2022-01-19 05:52:09,457 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9014675052410901 [2022-01-19 05:52:09,458 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 430 transitions. [2022-01-19 05:52:09,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 430 transitions. [2022-01-19 05:52:09,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:09,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 430 transitions. [2022-01-19 05:52:09,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 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) [2022-01-19 05:52:09,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2022-01-19 05:52:09,461 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2022-01-19 05:52:09,461 INFO L186 Difference]: Start difference. First operand has 142 places, 159 transitions, 336 flow. Second operand 3 states and 430 transitions. [2022-01-19 05:52:09,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 145 transitions, 338 flow [2022-01-19 05:52:09,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 145 transitions, 338 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 05:52:09,467 INFO L242 Difference]: Finished difference. Result has 144 places, 116 transitions, 250 flow [2022-01-19 05:52:09,468 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=144, PETRI_TRANSITIONS=116} [2022-01-19 05:52:09,470 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 2 predicate places. [2022-01-19 05:52:09,471 INFO L470 AbstractCegarLoop]: Abstraction has has 144 places, 116 transitions, 250 flow [2022-01-19 05:52:09,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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) [2022-01-19 05:52:09,471 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:09,471 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:09,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 05:52:09,472 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:09,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:09,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1056172317, now seen corresponding path program 1 times [2022-01-19 05:52:09,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:09,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778880697] [2022-01-19 05:52:09,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:09,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:09,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:09,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:09,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778880697] [2022-01-19 05:52:09,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778880697] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:52:09,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942235361] [2022-01-19 05:52:09,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:09,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:09,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:52:09,556 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:52:09,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-19 05:52:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:09,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-19 05:52:09,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:52:09,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 05:52:09,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 05:52:09,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942235361] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:09,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 05:52:09,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-19 05:52:09,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489882458] [2022-01-19 05:52:09,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:09,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 05:52:09,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:09,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 05:52:09,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 05:52:09,748 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 159 [2022-01-19 05:52:09,749 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 116 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 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) [2022-01-19 05:52:09,749 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:09,749 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 159 [2022-01-19 05:52:09,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:09,772 INFO L129 PetriNetUnfolder]: 0/146 cut-off events. [2022-01-19 05:52:09,772 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-01-19 05:52:09,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 146 events. 0/146 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 239 event pairs, 0 based on Foata normal form. 2/146 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2022-01-19 05:52:09,773 INFO L132 encePairwiseOnDemand]: 157/159 looper letters, 6 selfloop transitions, 0 changer transitions 1/116 dead transitions. [2022-01-19 05:52:09,773 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 116 transitions, 264 flow [2022-01-19 05:52:09,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 05:52:09,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 05:52:09,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2022-01-19 05:52:09,775 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8280922431865828 [2022-01-19 05:52:09,775 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2022-01-19 05:52:09,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2022-01-19 05:52:09,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:09,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2022-01-19 05:52:09,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 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) [2022-01-19 05:52:09,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2022-01-19 05:52:09,779 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2022-01-19 05:52:09,780 INFO L186 Difference]: Start difference. First operand has 144 places, 116 transitions, 250 flow. Second operand 3 states and 395 transitions. [2022-01-19 05:52:09,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 116 transitions, 264 flow [2022-01-19 05:52:09,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 116 transitions, 262 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 05:52:09,785 INFO L242 Difference]: Finished difference. Result has 124 places, 115 transitions, 248 flow [2022-01-19 05:52:09,785 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=124, PETRI_TRANSITIONS=115} [2022-01-19 05:52:09,786 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, -18 predicate places. [2022-01-19 05:52:09,787 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 115 transitions, 248 flow [2022-01-19 05:52:09,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 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) [2022-01-19 05:52:09,787 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:09,787 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:09,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-19 05:52:10,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:10,002 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:10,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:10,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1026219400, now seen corresponding path program 1 times [2022-01-19 05:52:10,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:10,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771667887] [2022-01-19 05:52:10,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:10,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:10,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:10,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:10,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771667887] [2022-01-19 05:52:10,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771667887] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:52:10,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858269045] [2022-01-19 05:52:10,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:10,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:10,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:52:10,043 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:52:10,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-19 05:52:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:10,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-19 05:52:10,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:52:10,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:10,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:52:10,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:10,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858269045] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:52:10,321 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:52:10,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-19 05:52:10,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453866740] [2022-01-19 05:52:10,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:52:10,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 05:52:10,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:10,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 05:52:10,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-19 05:52:10,325 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 159 [2022-01-19 05:52:10,326 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 115 transitions, 248 flow. Second operand has 10 states, 10 states have (on average 131.3) internal successors, (1313), 10 states have internal predecessors, (1313), 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) [2022-01-19 05:52:10,326 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:10,326 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 159 [2022-01-19 05:52:10,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:10,383 INFO L129 PetriNetUnfolder]: 0/112 cut-off events. [2022-01-19 05:52:10,384 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 05:52:10,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 112 events. 0/112 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 2/114 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-01-19 05:52:10,384 INFO L132 encePairwiseOnDemand]: 154/159 looper letters, 0 selfloop transitions, 0 changer transitions 106/106 dead transitions. [2022-01-19 05:52:10,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 106 transitions, 258 flow [2022-01-19 05:52:10,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 05:52:10,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 05:52:10,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1179 transitions. [2022-01-19 05:52:10,388 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8238993710691824 [2022-01-19 05:52:10,388 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1179 transitions. [2022-01-19 05:52:10,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1179 transitions. [2022-01-19 05:52:10,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:10,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1179 transitions. [2022-01-19 05:52:10,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 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) [2022-01-19 05:52:10,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 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) [2022-01-19 05:52:10,396 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 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) [2022-01-19 05:52:10,396 INFO L186 Difference]: Start difference. First operand has 124 places, 115 transitions, 248 flow. Second operand 9 states and 1179 transitions. [2022-01-19 05:52:10,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 106 transitions, 258 flow [2022-01-19 05:52:10,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 106 transitions, 258 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 05:52:10,398 INFO L242 Difference]: Finished difference. Result has 116 places, 0 transitions, 0 flow [2022-01-19 05:52:10,398 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=116, PETRI_TRANSITIONS=0} [2022-01-19 05:52:10,399 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, -26 predicate places. [2022-01-19 05:52:10,400 INFO L470 AbstractCegarLoop]: Abstraction has has 116 places, 0 transitions, 0 flow [2022-01-19 05:52:10,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.3) internal successors, (1313), 10 states have internal predecessors, (1313), 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) [2022-01-19 05:52:10,400 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-19 05:52:10,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-19 05:52:10,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:10,607 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-19 05:52:10,607 INFO L309 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2022-01-19 05:52:10,609 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-19 05:52:10,610 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:52:10,610 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-19 05:52:10,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 142 places, 159 transitions, 336 flow [2022-01-19 05:52:10,632 INFO L129 PetriNetUnfolder]: 40/274 cut-off events. [2022-01-19 05:52:10,632 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-01-19 05:52:10,633 INFO L84 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 274 events. 40/274 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 769 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 176. Up to 9 conditions per place. [2022-01-19 05:52:10,633 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 159 transitions, 336 flow [2022-01-19 05:52:10,636 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 159 transitions, 336 flow [2022-01-19 05:52:10,649 INFO L129 PetriNetUnfolder]: 27/210 cut-off events. [2022-01-19 05:52:10,650 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 05:52:10,650 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:10,650 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:10,650 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:52:10,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:10,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1133667776, now seen corresponding path program 1 times [2022-01-19 05:52:10,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:10,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071561152] [2022-01-19 05:52:10,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:10,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:52:10,670 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 05:52:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:52:10,696 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 05:52:10,696 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 05:52:10,696 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-19 05:52:10,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 05:52:10,696 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-19 05:52:10,697 INFO L309 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-19 05:52:10,697 WARN L235 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 05:52:10,697 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-01-19 05:52:10,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,710 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,710 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,710 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,710 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,711 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,711 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,711 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,711 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,711 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,712 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,712 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,712 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,712 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,712 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,716 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,716 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,716 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,716 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,717 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,717 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,717 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,717 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,722 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,722 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,722 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,722 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,723 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,723 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,723 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,723 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,723 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,723 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,724 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,724 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,725 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,725 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,728 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,729 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,729 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,730 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,731 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,731 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:10,733 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-19 05:52:10,735 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:52:10,736 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:52:10,736 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-19 05:52:10,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 167 places, 189 transitions, 408 flow [2022-01-19 05:52:10,772 INFO L129 PetriNetUnfolder]: 62/407 cut-off events. [2022-01-19 05:52:10,772 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-01-19 05:52:10,775 INFO L84 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 407 events. 62/407 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1339 event pairs, 1 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 282. Up to 16 conditions per place. [2022-01-19 05:52:10,775 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 189 transitions, 408 flow [2022-01-19 05:52:10,778 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 167 places, 189 transitions, 408 flow [2022-01-19 05:52:10,787 INFO L129 PetriNetUnfolder]: 8/111 cut-off events. [2022-01-19 05:52:10,787 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:52:10,787 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:10,787 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:10,787 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:10,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:10,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1028393307, now seen corresponding path program 1 times [2022-01-19 05:52:10,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:10,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433189731] [2022-01-19 05:52:10,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:10,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:10,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:10,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:10,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433189731] [2022-01-19 05:52:10,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433189731] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:10,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:52:10,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 05:52:10,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738691244] [2022-01-19 05:52:10,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:10,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 05:52:10,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:10,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 05:52:10,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 05:52:10,810 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 189 [2022-01-19 05:52:10,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 189 transitions, 408 flow. Second operand has 2 states, 2 states have (on average 159.5) internal successors, (319), 2 states have internal predecessors, (319), 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) [2022-01-19 05:52:10,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:10,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 189 [2022-01-19 05:52:10,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:10,886 INFO L129 PetriNetUnfolder]: 20/361 cut-off events. [2022-01-19 05:52:10,886 INFO L130 PetriNetUnfolder]: For 53/63 co-relation queries the response was YES. [2022-01-19 05:52:10,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 361 events. 20/361 cut-off events. For 53/63 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1213 event pairs, 1 based on Foata normal form. 106/439 useless extension candidates. Maximal degree in co-relation 257. Up to 16 conditions per place. [2022-01-19 05:52:10,888 INFO L132 encePairwiseOnDemand]: 166/189 looper letters, 3 selfloop transitions, 0 changer transitions 27/165 dead transitions. [2022-01-19 05:52:10,888 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 165 transitions, 372 flow [2022-01-19 05:52:10,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 05:52:10,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 05:52:10,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 347 transitions. [2022-01-19 05:52:10,889 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.917989417989418 [2022-01-19 05:52:10,889 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 347 transitions. [2022-01-19 05:52:10,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 347 transitions. [2022-01-19 05:52:10,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:10,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 347 transitions. [2022-01-19 05:52:10,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 173.5) internal successors, (347), 2 states have internal predecessors, (347), 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) [2022-01-19 05:52:10,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 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) [2022-01-19 05:52:10,891 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 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) [2022-01-19 05:52:10,892 INFO L186 Difference]: Start difference. First operand has 167 places, 189 transitions, 408 flow. Second operand 2 states and 347 transitions. [2022-01-19 05:52:10,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 165 transitions, 372 flow [2022-01-19 05:52:10,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 165 transitions, 372 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 05:52:10,894 INFO L242 Difference]: Finished difference. Result has 167 places, 138 transitions, 291 flow [2022-01-19 05:52:10,895 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=291, PETRI_PLACES=167, PETRI_TRANSITIONS=138} [2022-01-19 05:52:10,895 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, 0 predicate places. [2022-01-19 05:52:10,895 INFO L470 AbstractCegarLoop]: Abstraction has has 167 places, 138 transitions, 291 flow [2022-01-19 05:52:10,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 159.5) internal successors, (319), 2 states have internal predecessors, (319), 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) [2022-01-19 05:52:10,896 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:10,896 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:10,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 05:52:10,896 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:10,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:10,896 INFO L85 PathProgramCache]: Analyzing trace with hash 734990300, now seen corresponding path program 1 times [2022-01-19 05:52:10,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:10,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560806764] [2022-01-19 05:52:10,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:10,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:10,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:10,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:10,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560806764] [2022-01-19 05:52:10,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560806764] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:10,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:52:10,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 05:52:10,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913420920] [2022-01-19 05:52:10,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:10,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 05:52:10,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:10,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 05:52:10,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 05:52:10,922 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 189 [2022-01-19 05:52:10,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 138 transitions, 291 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2022-01-19 05:52:10,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:10,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 189 [2022-01-19 05:52:10,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:10,953 INFO L129 PetriNetUnfolder]: 3/192 cut-off events. [2022-01-19 05:52:10,954 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-01-19 05:52:10,954 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 192 events. 3/192 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 395 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 223. Up to 18 conditions per place. [2022-01-19 05:52:10,955 INFO L132 encePairwiseOnDemand]: 186/189 looper letters, 12 selfloop transitions, 2 changer transitions 0/142 dead transitions. [2022-01-19 05:52:10,955 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 142 transitions, 327 flow [2022-01-19 05:52:10,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 05:52:10,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 05:52:10,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 471 transitions. [2022-01-19 05:52:10,957 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8306878306878307 [2022-01-19 05:52:10,957 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 471 transitions. [2022-01-19 05:52:10,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 471 transitions. [2022-01-19 05:52:10,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:10,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 471 transitions. [2022-01-19 05:52:10,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 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) [2022-01-19 05:52:10,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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) [2022-01-19 05:52:10,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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) [2022-01-19 05:52:10,959 INFO L186 Difference]: Start difference. First operand has 167 places, 138 transitions, 291 flow. Second operand 3 states and 471 transitions. [2022-01-19 05:52:10,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 142 transitions, 327 flow [2022-01-19 05:52:10,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 142 transitions, 325 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-01-19 05:52:10,962 INFO L242 Difference]: Finished difference. Result has 148 places, 139 transitions, 301 flow [2022-01-19 05:52:10,962 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=301, PETRI_PLACES=148, PETRI_TRANSITIONS=139} [2022-01-19 05:52:10,963 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -19 predicate places. [2022-01-19 05:52:10,963 INFO L470 AbstractCegarLoop]: Abstraction has has 148 places, 139 transitions, 301 flow [2022-01-19 05:52:10,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2022-01-19 05:52:10,963 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:10,963 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:10,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 05:52:10,964 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:10,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:10,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1246462806, now seen corresponding path program 1 times [2022-01-19 05:52:10,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:10,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388644006] [2022-01-19 05:52:10,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:10,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:10,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:10,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:10,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388644006] [2022-01-19 05:52:10,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388644006] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:52:10,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170999745] [2022-01-19 05:52:10,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:10,995 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:10,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:52:10,997 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:52:11,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-19 05:52:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:11,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-19 05:52:11,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:52:11,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 05:52:11,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 05:52:11,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170999745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:11,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 05:52:11,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-19 05:52:11,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72726505] [2022-01-19 05:52:11,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:11,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 05:52:11,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:11,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 05:52:11,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 05:52:11,151 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 189 [2022-01-19 05:52:11,151 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 139 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 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) [2022-01-19 05:52:11,151 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:11,152 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 189 [2022-01-19 05:52:11,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:11,179 INFO L129 PetriNetUnfolder]: 0/195 cut-off events. [2022-01-19 05:52:11,179 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-01-19 05:52:11,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 195 events. 0/195 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 426 event pairs, 0 based on Foata normal form. 3/195 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2022-01-19 05:52:11,180 INFO L132 encePairwiseOnDemand]: 187/189 looper letters, 7 selfloop transitions, 0 changer transitions 1/139 dead transitions. [2022-01-19 05:52:11,180 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 139 transitions, 317 flow [2022-01-19 05:52:11,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 05:52:11,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 05:52:11,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 462 transitions. [2022-01-19 05:52:11,182 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2022-01-19 05:52:11,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 462 transitions. [2022-01-19 05:52:11,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 462 transitions. [2022-01-19 05:52:11,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:11,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 462 transitions. [2022-01-19 05:52:11,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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) [2022-01-19 05:52:11,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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) [2022-01-19 05:52:11,185 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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) [2022-01-19 05:52:11,185 INFO L186 Difference]: Start difference. First operand has 148 places, 139 transitions, 301 flow. Second operand 3 states and 462 transitions. [2022-01-19 05:52:11,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 139 transitions, 317 flow [2022-01-19 05:52:11,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 139 transitions, 315 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 05:52:11,187 INFO L242 Difference]: Finished difference. Result has 150 places, 138 transitions, 299 flow [2022-01-19 05:52:11,188 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=299, PETRI_PLACES=150, PETRI_TRANSITIONS=138} [2022-01-19 05:52:11,189 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -17 predicate places. [2022-01-19 05:52:11,189 INFO L470 AbstractCegarLoop]: Abstraction has has 150 places, 138 transitions, 299 flow [2022-01-19 05:52:11,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 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) [2022-01-19 05:52:11,189 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:11,189 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:11,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-19 05:52:11,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-01-19 05:52:11,416 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:11,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:11,416 INFO L85 PathProgramCache]: Analyzing trace with hash -788208351, now seen corresponding path program 1 times [2022-01-19 05:52:11,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:11,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132043060] [2022-01-19 05:52:11,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:11,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:11,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:11,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:11,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132043060] [2022-01-19 05:52:11,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132043060] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:52:11,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736186380] [2022-01-19 05:52:11,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:11,450 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:11,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:52:11,451 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:52:11,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-19 05:52:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:11,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-19 05:52:11,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:52:11,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:11,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:52:11,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:11,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736186380] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:52:11,726 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:52:11,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-19 05:52:11,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947929735] [2022-01-19 05:52:11,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:52:11,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 05:52:11,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:11,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 05:52:11,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-19 05:52:11,730 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 189 [2022-01-19 05:52:11,731 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 138 transitions, 299 flow. Second operand has 10 states, 10 states have (on average 153.3) internal successors, (1533), 10 states have internal predecessors, (1533), 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) [2022-01-19 05:52:11,731 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:11,731 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 189 [2022-01-19 05:52:11,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:11,799 INFO L129 PetriNetUnfolder]: 0/159 cut-off events. [2022-01-19 05:52:11,799 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 05:52:11,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 159 events. 0/159 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 205 event pairs, 0 based on Foata normal form. 2/161 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2022-01-19 05:52:11,800 INFO L132 encePairwiseOnDemand]: 183/189 looper letters, 13 selfloop transitions, 8 changer transitions 1/148 dead transitions. [2022-01-19 05:52:11,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 148 transitions, 365 flow [2022-01-19 05:52:11,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 05:52:11,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 05:52:11,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1383 transitions. [2022-01-19 05:52:11,803 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8130511463844797 [2022-01-19 05:52:11,803 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1383 transitions. [2022-01-19 05:52:11,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1383 transitions. [2022-01-19 05:52:11,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:11,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1383 transitions. [2022-01-19 05:52:11,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 153.66666666666666) internal successors, (1383), 9 states have internal predecessors, (1383), 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) [2022-01-19 05:52:11,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 189.0) internal successors, (1890), 10 states have internal predecessors, (1890), 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) [2022-01-19 05:52:11,810 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 189.0) internal successors, (1890), 10 states have internal predecessors, (1890), 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) [2022-01-19 05:52:11,810 INFO L186 Difference]: Start difference. First operand has 150 places, 138 transitions, 299 flow. Second operand 9 states and 1383 transitions. [2022-01-19 05:52:11,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 148 transitions, 365 flow [2022-01-19 05:52:11,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 148 transitions, 363 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-01-19 05:52:11,813 INFO L242 Difference]: Finished difference. Result has 159 places, 143 transitions, 341 flow [2022-01-19 05:52:11,814 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=341, PETRI_PLACES=159, PETRI_TRANSITIONS=143} [2022-01-19 05:52:11,814 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -8 predicate places. [2022-01-19 05:52:11,814 INFO L470 AbstractCegarLoop]: Abstraction has has 159 places, 143 transitions, 341 flow [2022-01-19 05:52:11,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 153.3) internal successors, (1533), 10 states have internal predecessors, (1533), 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) [2022-01-19 05:52:11,815 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:11,815 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:11,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-19 05:52:12,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:12,032 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:12,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:12,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1190125784, now seen corresponding path program 1 times [2022-01-19 05:52:12,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:12,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610658907] [2022-01-19 05:52:12,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:12,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:12,096 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-01-19 05:52:12,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:12,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610658907] [2022-01-19 05:52:12,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610658907] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:12,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:52:12,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 05:52:12,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054478228] [2022-01-19 05:52:12,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:12,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 05:52:12,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:12,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 05:52:12,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 05:52:12,099 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 189 [2022-01-19 05:52:12,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 143 transitions, 341 flow. Second operand has 5 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 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) [2022-01-19 05:52:12,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:12,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 189 [2022-01-19 05:52:12,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:12,797 INFO L129 PetriNetUnfolder]: 2107/5711 cut-off events. [2022-01-19 05:52:12,798 INFO L130 PetriNetUnfolder]: For 120/120 co-relation queries the response was YES. [2022-01-19 05:52:12,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9003 conditions, 5711 events. 2107/5711 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 52650 event pairs, 1281 based on Foata normal form. 125/5674 useless extension candidates. Maximal degree in co-relation 8992. Up to 1924 conditions per place. [2022-01-19 05:52:12,837 INFO L132 encePairwiseOnDemand]: 182/189 looper letters, 24 selfloop transitions, 4 changer transitions 41/192 dead transitions. [2022-01-19 05:52:12,837 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 192 transitions, 587 flow [2022-01-19 05:52:12,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 05:52:12,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 05:52:12,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1058 transitions. [2022-01-19 05:52:12,840 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.799697656840514 [2022-01-19 05:52:12,840 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1058 transitions. [2022-01-19 05:52:12,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1058 transitions. [2022-01-19 05:52:12,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:12,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1058 transitions. [2022-01-19 05:52:12,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 151.14285714285714) internal successors, (1058), 7 states have internal predecessors, (1058), 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) [2022-01-19 05:52:12,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 189.0) internal successors, (1512), 8 states have internal predecessors, (1512), 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) [2022-01-19 05:52:12,845 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 189.0) internal successors, (1512), 8 states have internal predecessors, (1512), 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) [2022-01-19 05:52:12,846 INFO L186 Difference]: Start difference. First operand has 159 places, 143 transitions, 341 flow. Second operand 7 states and 1058 transitions. [2022-01-19 05:52:12,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 192 transitions, 587 flow [2022-01-19 05:52:12,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 192 transitions, 579 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-01-19 05:52:12,850 INFO L242 Difference]: Finished difference. Result has 168 places, 146 transitions, 380 flow [2022-01-19 05:52:12,850 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=380, PETRI_PLACES=168, PETRI_TRANSITIONS=146} [2022-01-19 05:52:12,850 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, 1 predicate places. [2022-01-19 05:52:12,851 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 146 transitions, 380 flow [2022-01-19 05:52:12,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 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) [2022-01-19 05:52:12,851 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:12,851 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:12,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 05:52:12,852 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:12,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:12,852 INFO L85 PathProgramCache]: Analyzing trace with hash -334600894, now seen corresponding path program 1 times [2022-01-19 05:52:12,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:12,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98996615] [2022-01-19 05:52:12,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:12,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:12,921 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:12,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:12,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98996615] [2022-01-19 05:52:12,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98996615] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:52:12,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189390434] [2022-01-19 05:52:12,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:12,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:12,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:52:12,923 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:52:12,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-19 05:52:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:13,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 05:52:13,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:52:13,180 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:13,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:52:13,386 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:13,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189390434] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:52:13,387 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:52:13,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-19 05:52:13,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742179423] [2022-01-19 05:52:13,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:52:13,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 05:52:13,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:13,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 05:52:13,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-01-19 05:52:13,390 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 189 [2022-01-19 05:52:13,392 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 146 transitions, 380 flow. Second operand has 18 states, 18 states have (on average 153.61111111111111) internal successors, (2765), 18 states have internal predecessors, (2765), 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) [2022-01-19 05:52:13,392 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:13,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 189 [2022-01-19 05:52:13,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:13,470 INFO L129 PetriNetUnfolder]: 5/205 cut-off events. [2022-01-19 05:52:13,471 INFO L130 PetriNetUnfolder]: For 32/38 co-relation queries the response was YES. [2022-01-19 05:52:13,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 205 events. 5/205 cut-off events. For 32/38 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 380 event pairs, 1 based on Foata normal form. 1/204 useless extension candidates. Maximal degree in co-relation 284. Up to 13 conditions per place. [2022-01-19 05:52:13,472 INFO L132 encePairwiseOnDemand]: 184/189 looper letters, 0 selfloop transitions, 0 changer transitions 135/135 dead transitions. [2022-01-19 05:52:13,472 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 135 transitions, 386 flow [2022-01-19 05:52:13,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 05:52:13,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 05:52:13,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1833 transitions. [2022-01-19 05:52:13,476 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8082010582010583 [2022-01-19 05:52:13,476 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1833 transitions. [2022-01-19 05:52:13,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1833 transitions. [2022-01-19 05:52:13,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:13,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1833 transitions. [2022-01-19 05:52:13,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 152.75) internal successors, (1833), 12 states have internal predecessors, (1833), 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) [2022-01-19 05:52:13,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 189.0) internal successors, (2457), 13 states have internal predecessors, (2457), 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) [2022-01-19 05:52:13,484 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 189.0) internal successors, (2457), 13 states have internal predecessors, (2457), 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) [2022-01-19 05:52:13,484 INFO L186 Difference]: Start difference. First operand has 168 places, 146 transitions, 380 flow. Second operand 12 states and 1833 transitions. [2022-01-19 05:52:13,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 135 transitions, 386 flow [2022-01-19 05:52:13,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 135 transitions, 364 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-01-19 05:52:13,487 INFO L242 Difference]: Finished difference. Result has 154 places, 0 transitions, 0 flow [2022-01-19 05:52:13,487 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=154, PETRI_TRANSITIONS=0} [2022-01-19 05:52:13,487 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -13 predicate places. [2022-01-19 05:52:13,488 INFO L470 AbstractCegarLoop]: Abstraction has has 154 places, 0 transitions, 0 flow [2022-01-19 05:52:13,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 153.61111111111111) internal successors, (2765), 18 states have internal predecessors, (2765), 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) [2022-01-19 05:52:13,489 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-19 05:52:13,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-19 05:52:13,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:13,704 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-19 05:52:13,704 INFO L309 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2022-01-19 05:52:13,705 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-19 05:52:13,705 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:52:13,706 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-19 05:52:13,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 167 places, 189 transitions, 408 flow [2022-01-19 05:52:13,736 INFO L129 PetriNetUnfolder]: 62/407 cut-off events. [2022-01-19 05:52:13,736 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-01-19 05:52:13,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 407 events. 62/407 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1339 event pairs, 1 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 282. Up to 16 conditions per place. [2022-01-19 05:52:13,739 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 189 transitions, 408 flow [2022-01-19 05:52:13,742 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 167 places, 189 transitions, 408 flow [2022-01-19 05:52:13,760 INFO L129 PetriNetUnfolder]: 42/293 cut-off events. [2022-01-19 05:52:13,760 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-01-19 05:52:13,760 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:13,761 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:13,761 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:52:13,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:13,761 INFO L85 PathProgramCache]: Analyzing trace with hash 94495693, now seen corresponding path program 1 times [2022-01-19 05:52:13,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:13,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446458698] [2022-01-19 05:52:13,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:13,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:52:13,775 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 05:52:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:52:13,790 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 05:52:13,790 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 05:52:13,790 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-19 05:52:13,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 05:52:13,791 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-19 05:52:13,791 INFO L309 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-19 05:52:13,791 WARN L235 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 05:52:13,791 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-01-19 05:52:13,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,803 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,803 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,803 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,803 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,807 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,807 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,807 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,807 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,810 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,810 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,810 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,810 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,813 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,813 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,813 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,813 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,816 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,816 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,816 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,816 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,816 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,816 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,816 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,816 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,817 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,817 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,817 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,817 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,817 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,817 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,817 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,817 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,817 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,818 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,818 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,818 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,818 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,818 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,818 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,818 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,818 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,818 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,819 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,819 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,819 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,819 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,819 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,819 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,819 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,819 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,819 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,820 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,820 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,820 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,820 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,820 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,820 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,820 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:13,821 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-19 05:52:13,822 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:52:13,823 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:52:13,823 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-19 05:52:13,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 192 places, 219 transitions, 482 flow [2022-01-19 05:52:13,906 INFO L129 PetriNetUnfolder]: 96/608 cut-off events. [2022-01-19 05:52:13,906 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-01-19 05:52:13,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 663 conditions, 608 events. 96/608 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2277 event pairs, 6 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 427. Up to 32 conditions per place. [2022-01-19 05:52:13,910 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 219 transitions, 482 flow [2022-01-19 05:52:13,914 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 192 places, 219 transitions, 482 flow [2022-01-19 05:52:13,919 INFO L129 PetriNetUnfolder]: 8/107 cut-off events. [2022-01-19 05:52:13,920 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:52:13,920 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:13,920 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:13,920 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:13,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:13,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1108265910, now seen corresponding path program 1 times [2022-01-19 05:52:13,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:13,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994224817] [2022-01-19 05:52:13,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:13,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:13,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:13,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:13,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994224817] [2022-01-19 05:52:13,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994224817] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:13,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:52:13,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 05:52:13,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293131411] [2022-01-19 05:52:13,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:13,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 05:52:13,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:13,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 05:52:13,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 05:52:13,937 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 219 [2022-01-19 05:52:13,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 219 transitions, 482 flow. Second operand has 2 states, 2 states have (on average 181.5) internal successors, (363), 2 states have internal predecessors, (363), 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) [2022-01-19 05:52:13,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:13,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 219 [2022-01-19 05:52:13,938 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:13,997 INFO L129 PetriNetUnfolder]: 36/543 cut-off events. [2022-01-19 05:52:13,997 INFO L130 PetriNetUnfolder]: For 127/147 co-relation queries the response was YES. [2022-01-19 05:52:14,000 INFO L84 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 543 events. 36/543 cut-off events. For 127/147 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2164 event pairs, 6 based on Foata normal form. 252/754 useless extension candidates. Maximal degree in co-relation 396. Up to 37 conditions per place. [2022-01-19 05:52:14,001 INFO L132 encePairwiseOnDemand]: 190/219 looper letters, 4 selfloop transitions, 0 changer transitions 28/189 dead transitions. [2022-01-19 05:52:14,001 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 189 transitions, 438 flow [2022-01-19 05:52:14,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 05:52:14,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 05:52:14,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 399 transitions. [2022-01-19 05:52:14,002 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.910958904109589 [2022-01-19 05:52:14,002 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 399 transitions. [2022-01-19 05:52:14,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 399 transitions. [2022-01-19 05:52:14,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:14,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 399 transitions. [2022-01-19 05:52:14,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 199.5) internal successors, (399), 2 states have internal predecessors, (399), 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) [2022-01-19 05:52:14,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 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) [2022-01-19 05:52:14,005 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 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) [2022-01-19 05:52:14,005 INFO L186 Difference]: Start difference. First operand has 192 places, 219 transitions, 482 flow. Second operand 2 states and 399 transitions. [2022-01-19 05:52:14,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 189 transitions, 438 flow [2022-01-19 05:52:14,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 189 transitions, 438 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 05:52:14,008 INFO L242 Difference]: Finished difference. Result has 192 places, 161 transitions, 346 flow [2022-01-19 05:52:14,008 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=346, PETRI_PLACES=192, PETRI_TRANSITIONS=161} [2022-01-19 05:52:14,009 INFO L334 CegarLoopForPetriNet]: 192 programPoint places, 0 predicate places. [2022-01-19 05:52:14,009 INFO L470 AbstractCegarLoop]: Abstraction has has 192 places, 161 transitions, 346 flow [2022-01-19 05:52:14,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 181.5) internal successors, (363), 2 states have internal predecessors, (363), 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) [2022-01-19 05:52:14,009 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:14,009 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:14,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-19 05:52:14,010 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:14,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:14,010 INFO L85 PathProgramCache]: Analyzing trace with hash 814862903, now seen corresponding path program 1 times [2022-01-19 05:52:14,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:14,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410081410] [2022-01-19 05:52:14,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:14,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:14,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:14,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:14,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410081410] [2022-01-19 05:52:14,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410081410] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:14,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:52:14,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 05:52:14,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935926834] [2022-01-19 05:52:14,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:14,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 05:52:14,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:14,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 05:52:14,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 05:52:14,030 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 219 [2022-01-19 05:52:14,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 161 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 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) [2022-01-19 05:52:14,031 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:14,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 219 [2022-01-19 05:52:14,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:14,063 INFO L129 PetriNetUnfolder]: 4/240 cut-off events. [2022-01-19 05:52:14,063 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-01-19 05:52:14,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 240 events. 4/240 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 569 event pairs, 0 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 282. Up to 24 conditions per place. [2022-01-19 05:52:14,065 INFO L132 encePairwiseOnDemand]: 216/219 looper letters, 13 selfloop transitions, 2 changer transitions 0/165 dead transitions. [2022-01-19 05:52:14,065 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 165 transitions, 384 flow [2022-01-19 05:52:14,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 05:52:14,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 05:52:14,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 538 transitions. [2022-01-19 05:52:14,067 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8188736681887366 [2022-01-19 05:52:14,067 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 538 transitions. [2022-01-19 05:52:14,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 538 transitions. [2022-01-19 05:52:14,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:14,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 538 transitions. [2022-01-19 05:52:14,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) [2022-01-19 05:52:14,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2022-01-19 05:52:14,070 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2022-01-19 05:52:14,070 INFO L186 Difference]: Start difference. First operand has 192 places, 161 transitions, 346 flow. Second operand 3 states and 538 transitions. [2022-01-19 05:52:14,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 165 transitions, 384 flow [2022-01-19 05:52:14,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 165 transitions, 378 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-01-19 05:52:14,073 INFO L242 Difference]: Finished difference. Result has 173 places, 162 transitions, 352 flow [2022-01-19 05:52:14,073 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=173, PETRI_TRANSITIONS=162} [2022-01-19 05:52:14,074 INFO L334 CegarLoopForPetriNet]: 192 programPoint places, -19 predicate places. [2022-01-19 05:52:14,074 INFO L470 AbstractCegarLoop]: Abstraction has has 173 places, 162 transitions, 352 flow [2022-01-19 05:52:14,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 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) [2022-01-19 05:52:14,074 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:14,074 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:14,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 05:52:14,074 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:14,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:14,075 INFO L85 PathProgramCache]: Analyzing trace with hash -233760275, now seen corresponding path program 1 times [2022-01-19 05:52:14,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:14,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692194425] [2022-01-19 05:52:14,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:14,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:14,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:14,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:14,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692194425] [2022-01-19 05:52:14,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692194425] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:52:14,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877323011] [2022-01-19 05:52:14,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:14,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:14,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:52:14,105 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:52:14,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-19 05:52:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:14,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-19 05:52:14,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:52:14,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 05:52:14,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 05:52:14,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877323011] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:14,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 05:52:14,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-19 05:52:14,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106041650] [2022-01-19 05:52:14,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:14,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 05:52:14,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:14,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 05:52:14,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 05:52:14,267 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 219 [2022-01-19 05:52:14,268 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 162 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2022-01-19 05:52:14,268 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:14,268 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 219 [2022-01-19 05:52:14,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:14,299 INFO L129 PetriNetUnfolder]: 0/244 cut-off events. [2022-01-19 05:52:14,299 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-01-19 05:52:14,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 292 conditions, 244 events. 0/244 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 607 event pairs, 0 based on Foata normal form. 4/244 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2022-01-19 05:52:14,300 INFO L132 encePairwiseOnDemand]: 217/219 looper letters, 8 selfloop transitions, 0 changer transitions 1/162 dead transitions. [2022-01-19 05:52:14,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 162 transitions, 370 flow [2022-01-19 05:52:14,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 05:52:14,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 05:52:14,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 529 transitions. [2022-01-19 05:52:14,301 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8051750380517504 [2022-01-19 05:52:14,301 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 529 transitions. [2022-01-19 05:52:14,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 529 transitions. [2022-01-19 05:52:14,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:14,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 529 transitions. [2022-01-19 05:52:14,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 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) [2022-01-19 05:52:14,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2022-01-19 05:52:14,305 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2022-01-19 05:52:14,305 INFO L186 Difference]: Start difference. First operand has 173 places, 162 transitions, 352 flow. Second operand 3 states and 529 transitions. [2022-01-19 05:52:14,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 162 transitions, 370 flow [2022-01-19 05:52:14,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 162 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 05:52:14,308 INFO L242 Difference]: Finished difference. Result has 175 places, 161 transitions, 350 flow [2022-01-19 05:52:14,309 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=175, PETRI_TRANSITIONS=161} [2022-01-19 05:52:14,309 INFO L334 CegarLoopForPetriNet]: 192 programPoint places, -17 predicate places. [2022-01-19 05:52:14,309 INFO L470 AbstractCegarLoop]: Abstraction has has 175 places, 161 transitions, 350 flow [2022-01-19 05:52:14,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2022-01-19 05:52:14,310 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:14,310 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:14,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-19 05:52:14,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-01-19 05:52:14,526 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:14,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:14,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1648407208, now seen corresponding path program 1 times [2022-01-19 05:52:14,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:14,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103635750] [2022-01-19 05:52:14,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:14,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:14,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:14,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:14,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103635750] [2022-01-19 05:52:14,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103635750] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:52:14,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035101663] [2022-01-19 05:52:14,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:14,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:14,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:52:14,558 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:52:14,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-19 05:52:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:14,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-19 05:52:14,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:52:14,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:14,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:52:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:14,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035101663] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:52:14,856 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:52:14,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-19 05:52:14,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147006916] [2022-01-19 05:52:14,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:52:14,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 05:52:14,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:14,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 05:52:14,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-19 05:52:14,858 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 219 [2022-01-19 05:52:14,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 161 transitions, 350 flow. Second operand has 10 states, 10 states have (on average 175.3) internal successors, (1753), 10 states have internal predecessors, (1753), 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) [2022-01-19 05:52:14,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:14,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 219 [2022-01-19 05:52:14,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:14,942 INFO L129 PetriNetUnfolder]: 0/206 cut-off events. [2022-01-19 05:52:14,942 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-01-19 05:52:14,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 206 events. 0/206 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 373 event pairs, 0 based on Foata normal form. 2/208 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2022-01-19 05:52:14,943 INFO L132 encePairwiseOnDemand]: 213/219 looper letters, 14 selfloop transitions, 9 changer transitions 0/171 dead transitions. [2022-01-19 05:52:14,943 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 171 transitions, 418 flow [2022-01-19 05:52:14,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 05:52:14,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 05:52:14,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1582 transitions. [2022-01-19 05:52:14,946 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8026382546930492 [2022-01-19 05:52:14,946 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1582 transitions. [2022-01-19 05:52:14,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1582 transitions. [2022-01-19 05:52:14,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:14,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1582 transitions. [2022-01-19 05:52:14,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 175.77777777777777) internal successors, (1582), 9 states have internal predecessors, (1582), 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) [2022-01-19 05:52:14,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 219.0) internal successors, (2190), 10 states have internal predecessors, (2190), 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) [2022-01-19 05:52:14,954 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 219.0) internal successors, (2190), 10 states have internal predecessors, (2190), 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) [2022-01-19 05:52:14,954 INFO L186 Difference]: Start difference. First operand has 175 places, 161 transitions, 350 flow. Second operand 9 states and 1582 transitions. [2022-01-19 05:52:14,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 171 transitions, 418 flow [2022-01-19 05:52:14,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 171 transitions, 416 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-01-19 05:52:14,957 INFO L242 Difference]: Finished difference. Result has 184 places, 167 transitions, 398 flow [2022-01-19 05:52:14,957 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=398, PETRI_PLACES=184, PETRI_TRANSITIONS=167} [2022-01-19 05:52:14,958 INFO L334 CegarLoopForPetriNet]: 192 programPoint places, -8 predicate places. [2022-01-19 05:52:14,958 INFO L470 AbstractCegarLoop]: Abstraction has has 184 places, 167 transitions, 398 flow [2022-01-19 05:52:14,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 175.3) internal successors, (1753), 10 states have internal predecessors, (1753), 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) [2022-01-19 05:52:14,959 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:14,959 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:14,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-19 05:52:15,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:15,179 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:15,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:15,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1211080057, now seen corresponding path program 1 times [2022-01-19 05:52:15,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:15,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144081757] [2022-01-19 05:52:15,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:15,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:15,237 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-01-19 05:52:15,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:15,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144081757] [2022-01-19 05:52:15,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144081757] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:15,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:52:15,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 05:52:15,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608758865] [2022-01-19 05:52:15,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:15,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 05:52:15,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:15,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 05:52:15,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 05:52:15,239 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 219 [2022-01-19 05:52:15,240 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 167 transitions, 398 flow. Second operand has 5 states, 5 states have (on average 160.6) internal successors, (803), 5 states have internal predecessors, (803), 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) [2022-01-19 05:52:15,240 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:15,240 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 219 [2022-01-19 05:52:15,240 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:19,742 INFO L129 PetriNetUnfolder]: 16742/38977 cut-off events. [2022-01-19 05:52:19,742 INFO L130 PetriNetUnfolder]: For 555/555 co-relation queries the response was YES. [2022-01-19 05:52:19,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62380 conditions, 38977 events. 16742/38977 cut-off events. For 555/555 co-relation queries the response was YES. Maximal size of possible extension queue 1714. Compared 447923 event pairs, 10951 based on Foata normal form. 750/38877 useless extension candidates. Maximal degree in co-relation 62368. Up to 14189 conditions per place. [2022-01-19 05:52:20,074 INFO L132 encePairwiseOnDemand]: 211/219 looper letters, 31 selfloop transitions, 5 changer transitions 53/231 dead transitions. [2022-01-19 05:52:20,074 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 231 transitions, 719 flow [2022-01-19 05:52:20,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 05:52:20,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 05:52:20,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1204 transitions. [2022-01-19 05:52:20,077 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7853881278538812 [2022-01-19 05:52:20,077 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1204 transitions. [2022-01-19 05:52:20,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1204 transitions. [2022-01-19 05:52:20,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:20,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1204 transitions. [2022-01-19 05:52:20,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 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) [2022-01-19 05:52:20,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 219.0) internal successors, (1752), 8 states have internal predecessors, (1752), 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) [2022-01-19 05:52:20,083 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 219.0) internal successors, (1752), 8 states have internal predecessors, (1752), 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) [2022-01-19 05:52:20,083 INFO L186 Difference]: Start difference. First operand has 184 places, 167 transitions, 398 flow. Second operand 7 states and 1204 transitions. [2022-01-19 05:52:20,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 231 transitions, 719 flow [2022-01-19 05:52:20,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 231 transitions, 713 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-01-19 05:52:20,089 INFO L242 Difference]: Finished difference. Result has 194 places, 171 transitions, 449 flow [2022-01-19 05:52:20,089 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=449, PETRI_PLACES=194, PETRI_TRANSITIONS=171} [2022-01-19 05:52:20,090 INFO L334 CegarLoopForPetriNet]: 192 programPoint places, 2 predicate places. [2022-01-19 05:52:20,090 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 171 transitions, 449 flow [2022-01-19 05:52:20,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 160.6) internal successors, (803), 5 states have internal predecessors, (803), 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) [2022-01-19 05:52:20,090 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:20,091 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:20,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-19 05:52:20,091 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:20,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:20,091 INFO L85 PathProgramCache]: Analyzing trace with hash 294103921, now seen corresponding path program 1 times [2022-01-19 05:52:20,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:20,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563125225] [2022-01-19 05:52:20,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:20,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:20,173 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:20,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:20,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563125225] [2022-01-19 05:52:20,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563125225] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:52:20,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629683395] [2022-01-19 05:52:20,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:20,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:20,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:52:20,176 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:52:20,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-19 05:52:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:20,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 05:52:20,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:52:20,468 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:20,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:52:20,678 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:20,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629683395] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:52:20,679 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:52:20,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-19 05:52:20,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853402333] [2022-01-19 05:52:20,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:52:20,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 05:52:20,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:20,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 05:52:20,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-01-19 05:52:20,682 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 219 [2022-01-19 05:52:20,685 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 171 transitions, 449 flow. Second operand has 18 states, 18 states have (on average 175.61111111111111) internal successors, (3161), 18 states have internal predecessors, (3161), 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) [2022-01-19 05:52:20,685 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:20,685 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 219 [2022-01-19 05:52:20,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:20,891 INFO L129 PetriNetUnfolder]: 17/358 cut-off events. [2022-01-19 05:52:20,892 INFO L130 PetriNetUnfolder]: For 65/107 co-relation queries the response was YES. [2022-01-19 05:52:20,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 358 events. 17/358 cut-off events. For 65/107 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1241 event pairs, 6 based on Foata normal form. 2/353 useless extension candidates. Maximal degree in co-relation 515. Up to 33 conditions per place. [2022-01-19 05:52:20,894 INFO L132 encePairwiseOnDemand]: 214/219 looper letters, 0 selfloop transitions, 0 changer transitions 166/166 dead transitions. [2022-01-19 05:52:20,895 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 166 transitions, 495 flow [2022-01-19 05:52:20,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-19 05:52:20,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-01-19 05:52:20,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2625 transitions. [2022-01-19 05:52:20,900 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7990867579908676 [2022-01-19 05:52:20,900 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2625 transitions. [2022-01-19 05:52:20,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2625 transitions. [2022-01-19 05:52:20,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:20,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2625 transitions. [2022-01-19 05:52:20,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 175.0) internal successors, (2625), 15 states have internal predecessors, (2625), 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) [2022-01-19 05:52:20,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 219.0) internal successors, (3504), 16 states have internal predecessors, (3504), 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) [2022-01-19 05:52:20,910 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 219.0) internal successors, (3504), 16 states have internal predecessors, (3504), 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) [2022-01-19 05:52:20,910 INFO L186 Difference]: Start difference. First operand has 194 places, 171 transitions, 449 flow. Second operand 15 states and 2625 transitions. [2022-01-19 05:52:20,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 166 transitions, 495 flow [2022-01-19 05:52:20,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 166 transitions, 465 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-01-19 05:52:20,913 INFO L242 Difference]: Finished difference. Result has 183 places, 0 transitions, 0 flow [2022-01-19 05:52:20,914 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=183, PETRI_TRANSITIONS=0} [2022-01-19 05:52:20,914 INFO L334 CegarLoopForPetriNet]: 192 programPoint places, -9 predicate places. [2022-01-19 05:52:20,914 INFO L470 AbstractCegarLoop]: Abstraction has has 183 places, 0 transitions, 0 flow [2022-01-19 05:52:20,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 175.61111111111111) internal successors, (3161), 18 states have internal predecessors, (3161), 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) [2022-01-19 05:52:20,915 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-19 05:52:20,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-19 05:52:21,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-01-19 05:52:21,139 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-19 05:52:21,139 INFO L309 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2022-01-19 05:52:21,140 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-19 05:52:21,140 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:52:21,140 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-19 05:52:21,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 192 places, 219 transitions, 482 flow [2022-01-19 05:52:21,186 INFO L129 PetriNetUnfolder]: 96/608 cut-off events. [2022-01-19 05:52:21,186 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-01-19 05:52:21,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 663 conditions, 608 events. 96/608 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2277 event pairs, 6 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 427. Up to 32 conditions per place. [2022-01-19 05:52:21,190 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 219 transitions, 482 flow [2022-01-19 05:52:21,194 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 192 places, 219 transitions, 482 flow [2022-01-19 05:52:21,220 INFO L129 PetriNetUnfolder]: 60/391 cut-off events. [2022-01-19 05:52:21,220 INFO L130 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2022-01-19 05:52:21,220 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:21,220 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:21,221 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:52:21,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:21,221 INFO L85 PathProgramCache]: Analyzing trace with hash -219963599, now seen corresponding path program 1 times [2022-01-19 05:52:21,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:21,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437886414] [2022-01-19 05:52:21,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:21,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:52:21,243 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 05:52:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:52:21,272 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 05:52:21,272 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 05:52:21,272 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-19 05:52:21,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-19 05:52:21,272 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-19 05:52:21,273 INFO L309 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-19 05:52:21,273 WARN L235 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 05:52:21,273 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2022-01-19 05:52:21,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,284 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,284 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,284 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,284 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,288 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,288 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,288 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,288 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,291 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,291 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,291 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,291 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,294 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,294 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,294 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,294 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,297 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,297 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,297 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,297 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,300 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,300 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,301 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,301 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,303 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,303 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,303 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,303 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,303 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,303 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,303 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,303 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,304 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,304 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,304 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,304 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,304 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,304 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,304 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,304 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,305 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,306 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,306 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:21,307 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-01-19 05:52:21,309 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:52:21,310 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:52:21,310 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-19 05:52:21,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 217 places, 249 transitions, 558 flow [2022-01-19 05:52:21,402 INFO L129 PetriNetUnfolder]: 158/949 cut-off events. [2022-01-19 05:52:21,402 INFO L130 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2022-01-19 05:52:21,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1060 conditions, 949 events. 158/949 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4244 event pairs, 23 based on Foata normal form. 0/801 useless extension candidates. Maximal degree in co-relation 653. Up to 80 conditions per place. [2022-01-19 05:52:21,411 INFO L82 GeneralOperation]: Start removeDead. Operand has 217 places, 249 transitions, 558 flow [2022-01-19 05:52:21,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 217 places, 249 transitions, 558 flow [2022-01-19 05:52:21,420 INFO L129 PetriNetUnfolder]: 9/116 cut-off events. [2022-01-19 05:52:21,420 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:52:21,420 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:21,420 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:21,420 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:21,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:21,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1035883600, now seen corresponding path program 1 times [2022-01-19 05:52:21,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:21,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117120504] [2022-01-19 05:52:21,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:21,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:21,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:21,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:21,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117120504] [2022-01-19 05:52:21,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117120504] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:21,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:52:21,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 05:52:21,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704818803] [2022-01-19 05:52:21,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:21,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 05:52:21,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:21,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 05:52:21,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 05:52:21,448 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 249 [2022-01-19 05:52:21,449 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 249 transitions, 558 flow. Second operand has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 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) [2022-01-19 05:52:21,449 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:21,449 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 249 [2022-01-19 05:52:21,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:21,553 INFO L129 PetriNetUnfolder]: 68/831 cut-off events. [2022-01-19 05:52:21,553 INFO L130 PetriNetUnfolder]: For 276/342 co-relation queries the response was YES. [2022-01-19 05:52:21,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1057 conditions, 831 events. 68/831 cut-off events. For 276/342 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3976 event pairs, 23 based on Foata normal form. 880/1654 useless extension candidates. Maximal degree in co-relation 622. Up to 110 conditions per place. [2022-01-19 05:52:21,558 INFO L132 encePairwiseOnDemand]: 211/249 looper letters, 14 selfloop transitions, 2 changer transitions 29/217 dead transitions. [2022-01-19 05:52:21,558 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 217 transitions, 536 flow [2022-01-19 05:52:21,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 05:52:21,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 05:52:21,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 652 transitions. [2022-01-19 05:52:21,560 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8728246318607764 [2022-01-19 05:52:21,560 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 652 transitions. [2022-01-19 05:52:21,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 652 transitions. [2022-01-19 05:52:21,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:21,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 652 transitions. [2022-01-19 05:52:21,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:52:21,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 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) [2022-01-19 05:52:21,563 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 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) [2022-01-19 05:52:21,563 INFO L186 Difference]: Start difference. First operand has 217 places, 249 transitions, 558 flow. Second operand 3 states and 652 transitions. [2022-01-19 05:52:21,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 217 transitions, 536 flow [2022-01-19 05:52:21,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 217 transitions, 536 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 05:52:21,567 INFO L242 Difference]: Finished difference. Result has 219 places, 185 transitions, 415 flow [2022-01-19 05:52:21,567 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=415, PETRI_PLACES=219, PETRI_TRANSITIONS=185} [2022-01-19 05:52:21,568 INFO L334 CegarLoopForPetriNet]: 217 programPoint places, 2 predicate places. [2022-01-19 05:52:21,568 INFO L470 AbstractCegarLoop]: Abstraction has has 219 places, 185 transitions, 415 flow [2022-01-19 05:52:21,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 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) [2022-01-19 05:52:21,568 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:21,568 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:21,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 05:52:21,569 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:21,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:21,569 INFO L85 PathProgramCache]: Analyzing trace with hash 910470370, now seen corresponding path program 1 times [2022-01-19 05:52:21,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:21,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256307073] [2022-01-19 05:52:21,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:21,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:21,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:21,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:21,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256307073] [2022-01-19 05:52:21,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256307073] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:52:21,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617318316] [2022-01-19 05:52:21,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:21,600 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:21,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:52:21,604 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:52:21,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-19 05:52:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:21,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-19 05:52:21,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:52:21,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 05:52:21,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 05:52:21,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617318316] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:21,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 05:52:21,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-19 05:52:21,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433891149] [2022-01-19 05:52:21,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:21,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 05:52:21,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:21,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 05:52:21,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 05:52:21,792 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 249 [2022-01-19 05:52:21,793 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 185 transitions, 415 flow. Second operand has 3 states, 3 states have (on average 196.66666666666666) internal successors, (590), 3 states have internal predecessors, (590), 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) [2022-01-19 05:52:21,793 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:21,793 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 249 [2022-01-19 05:52:21,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:21,867 INFO L129 PetriNetUnfolder]: 0/293 cut-off events. [2022-01-19 05:52:21,867 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-01-19 05:52:21,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 293 events. 0/293 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 800 event pairs, 0 based on Foata normal form. 5/293 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2022-01-19 05:52:21,868 INFO L132 encePairwiseOnDemand]: 247/249 looper letters, 9 selfloop transitions, 0 changer transitions 1/185 dead transitions. [2022-01-19 05:52:21,868 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 185 transitions, 435 flow [2022-01-19 05:52:21,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 05:52:21,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 05:52:21,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2022-01-19 05:52:21,872 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7978580990629184 [2022-01-19 05:52:21,872 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 596 transitions. [2022-01-19 05:52:21,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 596 transitions. [2022-01-19 05:52:21,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:21,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 596 transitions. [2022-01-19 05:52:21,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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) [2022-01-19 05:52:21,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 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) [2022-01-19 05:52:21,876 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 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) [2022-01-19 05:52:21,876 INFO L186 Difference]: Start difference. First operand has 219 places, 185 transitions, 415 flow. Second operand 3 states and 596 transitions. [2022-01-19 05:52:21,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 185 transitions, 435 flow [2022-01-19 05:52:21,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 185 transitions, 421 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-01-19 05:52:21,879 INFO L242 Difference]: Finished difference. Result has 199 places, 184 transitions, 401 flow [2022-01-19 05:52:21,879 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=401, PETRI_PLACES=199, PETRI_TRANSITIONS=184} [2022-01-19 05:52:21,880 INFO L334 CegarLoopForPetriNet]: 217 programPoint places, -18 predicate places. [2022-01-19 05:52:21,880 INFO L470 AbstractCegarLoop]: Abstraction has has 199 places, 184 transitions, 401 flow [2022-01-19 05:52:21,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.66666666666666) internal successors, (590), 3 states have internal predecessors, (590), 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) [2022-01-19 05:52:21,880 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:21,880 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:21,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-19 05:52:22,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-01-19 05:52:22,103 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:22,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:22,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1554377171, now seen corresponding path program 1 times [2022-01-19 05:52:22,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:22,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366311440] [2022-01-19 05:52:22,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:22,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:22,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:22,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:22,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366311440] [2022-01-19 05:52:22,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366311440] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:52:22,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948851450] [2022-01-19 05:52:22,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:22,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:22,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:52:22,136 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:52:22,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-19 05:52:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:22,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-19 05:52:22,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:52:22,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:22,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:52:22,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:22,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948851450] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:52:22,426 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:52:22,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-19 05:52:22,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947376374] [2022-01-19 05:52:22,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:52:22,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 05:52:22,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:22,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 05:52:22,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-19 05:52:22,429 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 249 [2022-01-19 05:52:22,430 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 184 transitions, 401 flow. Second operand has 10 states, 10 states have (on average 197.3) internal successors, (1973), 10 states have internal predecessors, (1973), 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) [2022-01-19 05:52:22,430 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:22,430 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 249 [2022-01-19 05:52:22,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:22,515 INFO L129 PetriNetUnfolder]: 0/253 cut-off events. [2022-01-19 05:52:22,516 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-01-19 05:52:22,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 253 events. 0/253 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 539 event pairs, 0 based on Foata normal form. 2/255 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2022-01-19 05:52:22,516 INFO L132 encePairwiseOnDemand]: 243/249 looper letters, 15 selfloop transitions, 9 changer transitions 0/194 dead transitions. [2022-01-19 05:52:22,516 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 194 transitions, 471 flow [2022-01-19 05:52:22,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 05:52:22,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 05:52:22,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1781 transitions. [2022-01-19 05:52:22,519 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7947344935296743 [2022-01-19 05:52:22,519 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1781 transitions. [2022-01-19 05:52:22,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1781 transitions. [2022-01-19 05:52:22,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:22,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1781 transitions. [2022-01-19 05:52:22,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 197.88888888888889) internal successors, (1781), 9 states have internal predecessors, (1781), 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) [2022-01-19 05:52:22,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 249.0) internal successors, (2490), 10 states have internal predecessors, (2490), 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) [2022-01-19 05:52:22,525 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 249.0) internal successors, (2490), 10 states have internal predecessors, (2490), 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) [2022-01-19 05:52:22,525 INFO L186 Difference]: Start difference. First operand has 199 places, 184 transitions, 401 flow. Second operand 9 states and 1781 transitions. [2022-01-19 05:52:22,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 194 transitions, 471 flow [2022-01-19 05:52:22,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 194 transitions, 469 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-01-19 05:52:22,528 INFO L242 Difference]: Finished difference. Result has 208 places, 190 transitions, 449 flow [2022-01-19 05:52:22,529 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=449, PETRI_PLACES=208, PETRI_TRANSITIONS=190} [2022-01-19 05:52:22,529 INFO L334 CegarLoopForPetriNet]: 217 programPoint places, -9 predicate places. [2022-01-19 05:52:22,529 INFO L470 AbstractCegarLoop]: Abstraction has has 208 places, 190 transitions, 449 flow [2022-01-19 05:52:22,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 197.3) internal successors, (1973), 10 states have internal predecessors, (1973), 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) [2022-01-19 05:52:22,530 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:22,530 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:22,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-19 05:52:22,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-01-19 05:52:22,754 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:22,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:22,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1621213012, now seen corresponding path program 1 times [2022-01-19 05:52:22,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:22,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896692116] [2022-01-19 05:52:22,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:22,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:22,815 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-01-19 05:52:22,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:22,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896692116] [2022-01-19 05:52:22,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896692116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:22,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:52:22,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 05:52:22,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106000615] [2022-01-19 05:52:22,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:22,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 05:52:22,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:22,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 05:52:22,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 05:52:22,818 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 249 [2022-01-19 05:52:22,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 190 transitions, 449 flow. Second operand has 5 states, 5 states have (on average 178.6) internal successors, (893), 5 states have internal predecessors, (893), 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) [2022-01-19 05:52:22,819 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:22,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 249 [2022-01-19 05:52:22,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:48,796 INFO L129 PetriNetUnfolder]: 110509/245362 cut-off events. [2022-01-19 05:52:48,797 INFO L130 PetriNetUnfolder]: For 2354/2354 co-relation queries the response was YES. [2022-01-19 05:52:50,816 INFO L84 FinitePrefix]: Finished finitePrefix Result has 389077 conditions, 245362 events. 110509/245362 cut-off events. For 2354/2354 co-relation queries the response was YES. Maximal size of possible extension queue 8896. Compared 3382276 event pairs, 63940 based on Foata normal form. 3875/244897 useless extension candidates. Maximal degree in co-relation 389065. Up to 88950 conditions per place. [2022-01-19 05:52:51,550 INFO L132 encePairwiseOnDemand]: 240/249 looper letters, 38 selfloop transitions, 6 changer transitions 65/269 dead transitions. [2022-01-19 05:52:51,550 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 269 transitions, 845 flow [2022-01-19 05:52:51,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 05:52:51,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 05:52:51,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1350 transitions. [2022-01-19 05:52:51,552 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.774526678141136 [2022-01-19 05:52:51,552 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1350 transitions. [2022-01-19 05:52:51,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1350 transitions. [2022-01-19 05:52:51,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:51,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1350 transitions. [2022-01-19 05:52:51,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 192.85714285714286) internal successors, (1350), 7 states have internal predecessors, (1350), 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) [2022-01-19 05:52:51,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 249.0) internal successors, (1992), 8 states have internal predecessors, (1992), 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) [2022-01-19 05:52:51,557 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 249.0) internal successors, (1992), 8 states have internal predecessors, (1992), 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) [2022-01-19 05:52:51,557 INFO L186 Difference]: Start difference. First operand has 208 places, 190 transitions, 449 flow. Second operand 7 states and 1350 transitions. [2022-01-19 05:52:51,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 269 transitions, 845 flow [2022-01-19 05:52:51,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 269 transitions, 839 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-01-19 05:52:51,562 INFO L242 Difference]: Finished difference. Result has 218 places, 195 transitions, 511 flow [2022-01-19 05:52:51,562 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=511, PETRI_PLACES=218, PETRI_TRANSITIONS=195} [2022-01-19 05:52:51,563 INFO L334 CegarLoopForPetriNet]: 217 programPoint places, 1 predicate places. [2022-01-19 05:52:51,563 INFO L470 AbstractCegarLoop]: Abstraction has has 218 places, 195 transitions, 511 flow [2022-01-19 05:52:51,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 178.6) internal successors, (893), 5 states have internal predecessors, (893), 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) [2022-01-19 05:52:51,563 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:51,563 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:51,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-19 05:52:51,564 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:51,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:51,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1906525142, now seen corresponding path program 1 times [2022-01-19 05:52:51,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:51,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719579379] [2022-01-19 05:52:51,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:51,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:51,619 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:51,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:51,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719579379] [2022-01-19 05:52:51,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719579379] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:52:51,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694066754] [2022-01-19 05:52:51,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:51,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:51,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:52:51,621 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:52:51,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-19 05:52:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:51,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 05:52:51,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:52:52,052 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:52,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:52:52,231 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:52,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694066754] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:52:52,231 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:52:52,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-19 05:52:52,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101744326] [2022-01-19 05:52:52,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:52:52,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 05:52:52,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:52,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 05:52:52,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-01-19 05:52:52,235 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 249 [2022-01-19 05:52:52,237 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 195 transitions, 511 flow. Second operand has 18 states, 18 states have (on average 197.61111111111111) internal successors, (3557), 18 states have internal predecessors, (3557), 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) [2022-01-19 05:52:52,237 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:52,237 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 249 [2022-01-19 05:52:52,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:52,429 INFO L129 PetriNetUnfolder]: 49/647 cut-off events. [2022-01-19 05:52:52,430 INFO L130 PetriNetUnfolder]: For 109/277 co-relation queries the response was YES. [2022-01-19 05:52:52,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 980 conditions, 647 events. 49/647 cut-off events. For 109/277 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3344 event pairs, 23 based on Foata normal form. 3/633 useless extension candidates. Maximal degree in co-relation 962. Up to 81 conditions per place. [2022-01-19 05:52:52,438 INFO L132 encePairwiseOnDemand]: 244/249 looper letters, 0 selfloop transitions, 0 changer transitions 195/195 dead transitions. [2022-01-19 05:52:52,438 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 195 transitions, 591 flow [2022-01-19 05:52:52,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 05:52:52,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 05:52:52,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3547 transitions. [2022-01-19 05:52:52,442 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7913877733154842 [2022-01-19 05:52:52,442 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3547 transitions. [2022-01-19 05:52:52,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3547 transitions. [2022-01-19 05:52:52,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:52,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3547 transitions. [2022-01-19 05:52:52,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 197.05555555555554) internal successors, (3547), 18 states have internal predecessors, (3547), 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) [2022-01-19 05:52:52,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 249.0) internal successors, (4731), 19 states have internal predecessors, (4731), 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) [2022-01-19 05:52:52,454 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 249.0) internal successors, (4731), 19 states have internal predecessors, (4731), 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) [2022-01-19 05:52:52,455 INFO L186 Difference]: Start difference. First operand has 218 places, 195 transitions, 511 flow. Second operand 18 states and 3547 transitions. [2022-01-19 05:52:52,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 195 transitions, 591 flow [2022-01-19 05:52:52,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 195 transitions, 554 flow, removed 10 selfloop flow, removed 6 redundant places. [2022-01-19 05:52:52,458 INFO L242 Difference]: Finished difference. Result has 210 places, 0 transitions, 0 flow [2022-01-19 05:52:52,458 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=0, PETRI_PLACES=210, PETRI_TRANSITIONS=0} [2022-01-19 05:52:52,458 INFO L334 CegarLoopForPetriNet]: 217 programPoint places, -7 predicate places. [2022-01-19 05:52:52,458 INFO L470 AbstractCegarLoop]: Abstraction has has 210 places, 0 transitions, 0 flow [2022-01-19 05:52:52,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 197.61111111111111) internal successors, (3557), 18 states have internal predecessors, (3557), 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) [2022-01-19 05:52:52,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-19 05:52:52,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-01-19 05:52:52,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-01-19 05:52:52,683 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-01-19 05:52:52,683 INFO L309 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2022-01-19 05:52:52,684 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-19 05:52:52,684 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:52:52,684 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-19 05:52:52,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 217 places, 249 transitions, 558 flow [2022-01-19 05:52:52,774 INFO L129 PetriNetUnfolder]: 158/949 cut-off events. [2022-01-19 05:52:52,774 INFO L130 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2022-01-19 05:52:52,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1060 conditions, 949 events. 158/949 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4244 event pairs, 23 based on Foata normal form. 0/801 useless extension candidates. Maximal degree in co-relation 653. Up to 80 conditions per place. [2022-01-19 05:52:52,783 INFO L82 GeneralOperation]: Start removeDead. Operand has 217 places, 249 transitions, 558 flow [2022-01-19 05:52:52,790 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 217 places, 249 transitions, 558 flow [2022-01-19 05:52:52,818 INFO L129 PetriNetUnfolder]: 78/498 cut-off events. [2022-01-19 05:52:52,818 INFO L130 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2022-01-19 05:52:52,818 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:52,818 INFO L254 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:52,818 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:52:52,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:52,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1000398316, now seen corresponding path program 1 times [2022-01-19 05:52:52,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:52,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649247984] [2022-01-19 05:52:52,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:52,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:52:52,832 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 05:52:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:52:52,848 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 05:52:52,849 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 05:52:52,849 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-19 05:52:52,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-19 05:52:52,849 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-19 05:52:52,849 INFO L309 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-19 05:52:52,849 WARN L235 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 05:52:52,849 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2022-01-19 05:52:52,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,861 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,861 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,861 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,861 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,864 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,864 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,864 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,864 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,867 WARN L322 ript$VariableManager]: TermVariabe t_funThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,867 WARN L322 ript$VariableManager]: TermVariabe t_funThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,867 WARN L322 ript$VariableManager]: TermVariabe t_funThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,867 WARN L322 ript$VariableManager]: TermVariabe t_funThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,870 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,870 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,870 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,870 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,873 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,873 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,873 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,873 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,876 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,876 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,876 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,876 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,879 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,879 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,880 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,880 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,881 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,881 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,882 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,882 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,883 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,883 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,884 WARN L322 ript$VariableManager]: TermVariabe t_funThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,884 WARN L322 ript$VariableManager]: TermVariabe t_funThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:52:52,887 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-01-19 05:52:52,888 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:52:52,888 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:52:52,888 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-19 05:52:52,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 242 places, 279 transitions, 636 flow [2022-01-19 05:52:53,036 INFO L129 PetriNetUnfolder]: 284/1578 cut-off events. [2022-01-19 05:52:53,037 INFO L130 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2022-01-19 05:52:53,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1810 conditions, 1578 events. 284/1578 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 8622 event pairs, 72 based on Foata normal form. 0/1351 useless extension candidates. Maximal degree in co-relation 1048. Up to 192 conditions per place. [2022-01-19 05:52:53,059 INFO L82 GeneralOperation]: Start removeDead. Operand has 242 places, 279 transitions, 636 flow [2022-01-19 05:52:53,069 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 242 places, 279 transitions, 636 flow [2022-01-19 05:52:53,072 INFO L129 PetriNetUnfolder]: 9/109 cut-off events. [2022-01-19 05:52:53,072 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:52:53,073 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:53,073 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:53,073 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:53,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:53,073 INFO L85 PathProgramCache]: Analyzing trace with hash -228878906, now seen corresponding path program 1 times [2022-01-19 05:52:53,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:53,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936722354] [2022-01-19 05:52:53,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:53,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:53,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:53,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936722354] [2022-01-19 05:52:53,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936722354] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:53,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:52:53,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 05:52:53,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591409461] [2022-01-19 05:52:53,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:53,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 05:52:53,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:53,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 05:52:53,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 05:52:53,092 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 279 [2022-01-19 05:52:53,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 279 transitions, 636 flow. Second operand has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 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) [2022-01-19 05:52:53,092 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:53,092 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 279 [2022-01-19 05:52:53,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:53,256 INFO L129 PetriNetUnfolder]: 156/1443 cut-off events. [2022-01-19 05:52:53,256 INFO L130 PetriNetUnfolder]: For 657/691 co-relation queries the response was YES. [2022-01-19 05:52:53,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 1443 events. 156/1443 cut-off events. For 657/691 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8425 event pairs, 72 based on Foata normal form. 1314/2658 useless extension candidates. Maximal degree in co-relation 1041. Up to 199 conditions per place. [2022-01-19 05:52:53,269 INFO L132 encePairwiseOnDemand]: 238/279 looper letters, 6 selfloop transitions, 0 changer transitions 30/237 dead transitions. [2022-01-19 05:52:53,269 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 237 transitions, 576 flow [2022-01-19 05:52:53,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 05:52:53,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 05:52:53,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 503 transitions. [2022-01-19 05:52:53,270 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9014336917562724 [2022-01-19 05:52:53,270 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 503 transitions. [2022-01-19 05:52:53,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 503 transitions. [2022-01-19 05:52:53,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:53,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 503 transitions. [2022-01-19 05:52:53,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 251.5) internal successors, (503), 2 states have internal predecessors, (503), 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) [2022-01-19 05:52:53,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 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) [2022-01-19 05:52:53,272 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 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) [2022-01-19 05:52:53,272 INFO L186 Difference]: Start difference. First operand has 242 places, 279 transitions, 636 flow. Second operand 2 states and 503 transitions. [2022-01-19 05:52:53,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 237 transitions, 576 flow [2022-01-19 05:52:53,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 237 transitions, 576 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 05:52:53,276 INFO L242 Difference]: Finished difference. Result has 242 places, 207 transitions, 462 flow [2022-01-19 05:52:53,277 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=462, PETRI_PLACES=242, PETRI_TRANSITIONS=207} [2022-01-19 05:52:53,277 INFO L334 CegarLoopForPetriNet]: 242 programPoint places, 0 predicate places. [2022-01-19 05:52:53,277 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 207 transitions, 462 flow [2022-01-19 05:52:53,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 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) [2022-01-19 05:52:53,277 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:53,278 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:53,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-19 05:52:53,278 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:53,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:53,278 INFO L85 PathProgramCache]: Analyzing trace with hash -522281913, now seen corresponding path program 1 times [2022-01-19 05:52:53,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:53,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267071848] [2022-01-19 05:52:53,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:53,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:53,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:53,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:53,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267071848] [2022-01-19 05:52:53,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267071848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:53,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:52:53,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 05:52:53,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397996835] [2022-01-19 05:52:53,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:53,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 05:52:53,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:53,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 05:52:53,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 05:52:53,297 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 279 [2022-01-19 05:52:53,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 207 transitions, 462 flow. Second operand has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 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) [2022-01-19 05:52:53,297 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:53,297 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 279 [2022-01-19 05:52:53,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:53,342 INFO L129 PetriNetUnfolder]: 6/336 cut-off events. [2022-01-19 05:52:53,342 INFO L130 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-01-19 05:52:53,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 336 events. 6/336 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 907 event pairs, 0 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 403. Up to 36 conditions per place. [2022-01-19 05:52:53,344 INFO L132 encePairwiseOnDemand]: 276/279 looper letters, 15 selfloop transitions, 2 changer transitions 0/211 dead transitions. [2022-01-19 05:52:53,344 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 211 transitions, 504 flow [2022-01-19 05:52:53,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 05:52:53,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 05:52:53,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 672 transitions. [2022-01-19 05:52:53,345 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8028673835125448 [2022-01-19 05:52:53,346 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 672 transitions. [2022-01-19 05:52:53,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 672 transitions. [2022-01-19 05:52:53,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:53,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 672 transitions. [2022-01-19 05:52:53,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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) [2022-01-19 05:52:53,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 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) [2022-01-19 05:52:53,348 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 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) [2022-01-19 05:52:53,348 INFO L186 Difference]: Start difference. First operand has 242 places, 207 transitions, 462 flow. Second operand 3 states and 672 transitions. [2022-01-19 05:52:53,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 211 transitions, 504 flow [2022-01-19 05:52:53,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 211 transitions, 484 flow, removed 10 selfloop flow, removed 0 redundant places. [2022-01-19 05:52:53,351 INFO L242 Difference]: Finished difference. Result has 223 places, 208 transitions, 454 flow [2022-01-19 05:52:53,352 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=454, PETRI_PLACES=223, PETRI_TRANSITIONS=208} [2022-01-19 05:52:53,352 INFO L334 CegarLoopForPetriNet]: 242 programPoint places, -19 predicate places. [2022-01-19 05:52:53,352 INFO L470 AbstractCegarLoop]: Abstraction has has 223 places, 208 transitions, 454 flow [2022-01-19 05:52:53,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 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) [2022-01-19 05:52:53,352 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:53,353 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:53,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-19 05:52:53,353 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:53,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:53,353 INFO L85 PathProgramCache]: Analyzing trace with hash 384187445, now seen corresponding path program 1 times [2022-01-19 05:52:53,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:53,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653517098] [2022-01-19 05:52:53,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:53,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:53,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:53,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:53,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653517098] [2022-01-19 05:52:53,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653517098] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:52:53,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495444251] [2022-01-19 05:52:53,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:53,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:53,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:52:53,384 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:52:53,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-01-19 05:52:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:53,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-19 05:52:53,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:52:53,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 05:52:53,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 05:52:53,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495444251] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:53,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 05:52:53,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-19 05:52:53,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556773672] [2022-01-19 05:52:53,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:53,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 05:52:53,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:53,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 05:52:53,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 05:52:53,577 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 279 [2022-01-19 05:52:53,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 208 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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) [2022-01-19 05:52:53,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:53,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 279 [2022-01-19 05:52:53,578 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:53,627 INFO L129 PetriNetUnfolder]: 0/342 cut-off events. [2022-01-19 05:52:53,627 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-01-19 05:52:53,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 342 events. 0/342 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 986 event pairs, 0 based on Foata normal form. 6/342 useless extension candidates. Maximal degree in co-relation 0. Up to 21 conditions per place. [2022-01-19 05:52:53,628 INFO L132 encePairwiseOnDemand]: 277/279 looper letters, 10 selfloop transitions, 0 changer transitions 1/208 dead transitions. [2022-01-19 05:52:53,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 208 transitions, 476 flow [2022-01-19 05:52:53,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 05:52:53,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 05:52:53,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 663 transitions. [2022-01-19 05:52:53,630 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7921146953405018 [2022-01-19 05:52:53,630 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 663 transitions. [2022-01-19 05:52:53,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 663 transitions. [2022-01-19 05:52:53,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:53,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 663 transitions. [2022-01-19 05:52:53,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 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) [2022-01-19 05:52:53,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 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) [2022-01-19 05:52:53,633 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 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) [2022-01-19 05:52:53,633 INFO L186 Difference]: Start difference. First operand has 223 places, 208 transitions, 454 flow. Second operand 3 states and 663 transitions. [2022-01-19 05:52:53,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 208 transitions, 476 flow [2022-01-19 05:52:53,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 208 transitions, 474 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 05:52:53,638 INFO L242 Difference]: Finished difference. Result has 225 places, 207 transitions, 452 flow [2022-01-19 05:52:53,638 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=452, PETRI_PLACES=225, PETRI_TRANSITIONS=207} [2022-01-19 05:52:53,639 INFO L334 CegarLoopForPetriNet]: 242 programPoint places, -17 predicate places. [2022-01-19 05:52:53,639 INFO L470 AbstractCegarLoop]: Abstraction has has 225 places, 207 transitions, 452 flow [2022-01-19 05:52:53,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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) [2022-01-19 05:52:53,639 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:53,639 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:53,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-01-19 05:52:53,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:53,862 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:53,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:53,862 INFO L85 PathProgramCache]: Analyzing trace with hash -506118240, now seen corresponding path program 1 times [2022-01-19 05:52:53,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:53,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012894065] [2022-01-19 05:52:53,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:53,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:53,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:53,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:53,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012894065] [2022-01-19 05:52:53,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012894065] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:52:53,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29556234] [2022-01-19 05:52:53,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:53,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:53,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:52:53,891 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:52:53,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-01-19 05:52:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:53,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-19 05:52:53,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:52:54,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:54,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:52:54,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:52:54,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29556234] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:52:54,191 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:52:54,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-19 05:52:54,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167873416] [2022-01-19 05:52:54,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:52:54,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 05:52:54,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:54,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 05:52:54,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-19 05:52:54,194 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 279 [2022-01-19 05:52:54,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 207 transitions, 452 flow. Second operand has 10 states, 10 states have (on average 219.3) internal successors, (2193), 10 states have internal predecessors, (2193), 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) [2022-01-19 05:52:54,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:54,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 279 [2022-01-19 05:52:54,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:52:54,294 INFO L129 PetriNetUnfolder]: 0/300 cut-off events. [2022-01-19 05:52:54,294 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-01-19 05:52:54,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 300 events. 0/300 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 708 event pairs, 0 based on Foata normal form. 2/302 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2022-01-19 05:52:54,294 INFO L132 encePairwiseOnDemand]: 273/279 looper letters, 16 selfloop transitions, 9 changer transitions 0/217 dead transitions. [2022-01-19 05:52:54,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 217 transitions, 524 flow [2022-01-19 05:52:54,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 05:52:54,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 05:52:54,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1980 transitions. [2022-01-19 05:52:54,297 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7885304659498208 [2022-01-19 05:52:54,297 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1980 transitions. [2022-01-19 05:52:54,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1980 transitions. [2022-01-19 05:52:54,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:52:54,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1980 transitions. [2022-01-19 05:52:54,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 220.0) internal successors, (1980), 9 states have internal predecessors, (1980), 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) [2022-01-19 05:52:54,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 279.0) internal successors, (2790), 10 states have internal predecessors, (2790), 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) [2022-01-19 05:52:54,302 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 279.0) internal successors, (2790), 10 states have internal predecessors, (2790), 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) [2022-01-19 05:52:54,302 INFO L186 Difference]: Start difference. First operand has 225 places, 207 transitions, 452 flow. Second operand 9 states and 1980 transitions. [2022-01-19 05:52:54,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 217 transitions, 524 flow [2022-01-19 05:52:54,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 217 transitions, 522 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-01-19 05:52:54,306 INFO L242 Difference]: Finished difference. Result has 234 places, 213 transitions, 500 flow [2022-01-19 05:52:54,306 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=500, PETRI_PLACES=234, PETRI_TRANSITIONS=213} [2022-01-19 05:52:54,307 INFO L334 CegarLoopForPetriNet]: 242 programPoint places, -8 predicate places. [2022-01-19 05:52:54,307 INFO L470 AbstractCegarLoop]: Abstraction has has 234 places, 213 transitions, 500 flow [2022-01-19 05:52:54,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 219.3) internal successors, (2193), 10 states have internal predecessors, (2193), 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) [2022-01-19 05:52:54,308 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:52:54,308 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:52:54,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-01-19 05:52:54,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:52:54,531 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:52:54,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:52:54,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1097070399, now seen corresponding path program 1 times [2022-01-19 05:52:54,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:52:54,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685908476] [2022-01-19 05:52:54,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:52:54,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:52:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:52:54,586 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-01-19 05:52:54,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:52:54,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685908476] [2022-01-19 05:52:54,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685908476] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:52:54,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:52:54,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 05:52:54,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512227473] [2022-01-19 05:52:54,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:52:54,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 05:52:54,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:52:54,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 05:52:54,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 05:52:54,588 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 279 [2022-01-19 05:52:54,589 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 213 transitions, 500 flow. Second operand has 5 states, 5 states have (on average 196.6) internal successors, (983), 5 states have internal predecessors, (983), 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) [2022-01-19 05:52:54,589 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:52:54,589 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 279 [2022-01-19 05:52:54,589 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand