/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-sum-array-hom.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 02:16:32,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 02:16:32,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 02:16:32,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 02:16:32,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 02:16:32,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 02:16:32,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 02:16:32,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 02:16:32,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 02:16:32,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 02:16:32,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 02:16:32,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 02:16:32,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 02:16:32,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 02:16:32,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 02:16:32,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 02:16:32,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 02:16:32,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 02:16:32,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 02:16:32,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 02:16:32,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 02:16:32,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 02:16:32,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 02:16:32,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 02:16:32,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 02:16:32,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 02:16:32,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 02:16:32,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 02:16:32,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 02:16:32,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 02:16:32,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 02:16:32,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 02:16:32,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 02:16:32,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 02:16:32,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 02:16:32,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 02:16:32,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 02:16:32,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 02:16:32,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 02:16:32,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 02:16:32,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 02:16:32,833 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.epf [2022-01-19 02:16:32,855 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 02:16:32,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 02:16:32,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 02:16:32,857 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 02:16:32,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 02:16:32,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 02:16:32,857 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 02:16:32,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 02:16:32,857 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 02:16:32,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 02:16:32,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 02:16:32,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 02:16:32,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 02:16:32,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 02:16:32,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 02:16:32,858 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 02:16:32,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 02:16:32,859 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 02:16:32,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 02:16:32,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 02:16:32,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 02:16:32,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 02:16:32,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 02:16:32,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 02:16:32,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 02:16:32,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 02:16:32,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 02:16:32,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 02:16:32,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 02:16:32,860 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 02:16:32,861 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 02:16:32,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 02:16:33,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 02:16:33,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 02:16:33,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 02:16:33,078 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 02:16:33,079 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 02:16:33,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-sum-array-hom.wvr.c [2022-01-19 02:16:33,135 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/324d3b5d0/9014c127ea194302af1f4cb9ef52b374/FLAG40bcf6276 [2022-01-19 02:16:33,501 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 02:16:33,501 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sum-array-hom.wvr.c [2022-01-19 02:16:33,510 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/324d3b5d0/9014c127ea194302af1f4cb9ef52b374/FLAG40bcf6276 [2022-01-19 02:16:33,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/324d3b5d0/9014c127ea194302af1f4cb9ef52b374 [2022-01-19 02:16:33,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 02:16:33,931 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 02:16:33,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 02:16:33,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 02:16:33,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 02:16:33,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 02:16:33" (1/1) ... [2022-01-19 02:16:33,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59cbc8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:16:33, skipping insertion in model container [2022-01-19 02:16:33,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 02:16:33" (1/1) ... [2022-01-19 02:16:33,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 02:16:33,949 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 02:16:34,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sum-array-hom.wvr.c[2396,2409] [2022-01-19 02:16:34,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 02:16:34,110 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 02:16:34,122 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sum-array-hom.wvr.c[2396,2409] [2022-01-19 02:16:34,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 02:16:34,132 INFO L208 MainTranslator]: Completed translation [2022-01-19 02:16:34,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:16:34 WrapperNode [2022-01-19 02:16:34,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 02:16:34,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 02:16:34,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 02:16:34,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 02:16:34,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:16:34" (1/1) ... [2022-01-19 02:16:34,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:16:34" (1/1) ... [2022-01-19 02:16:34,161 INFO L137 Inliner]: procedures = 25, calls = 34, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 102 [2022-01-19 02:16:34,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 02:16:34,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 02:16:34,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 02:16:34,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 02:16:34,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:16:34" (1/1) ... [2022-01-19 02:16:34,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:16:34" (1/1) ... [2022-01-19 02:16:34,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:16:34" (1/1) ... [2022-01-19 02:16:34,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:16:34" (1/1) ... [2022-01-19 02:16:34,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:16:34" (1/1) ... [2022-01-19 02:16:34,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:16:34" (1/1) ... [2022-01-19 02:16:34,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:16:34" (1/1) ... [2022-01-19 02:16:34,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 02:16:34,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 02:16:34,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 02:16:34,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 02:16:34,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:16:34" (1/1) ... [2022-01-19 02:16:34,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 02:16:34,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 02:16:34,203 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 02:16:34,223 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 02:16:34,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 02:16:34,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 02:16:34,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 02:16:34,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 02:16:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 02:16:34,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 02:16:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 02:16:34,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 02:16:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 02:16:34,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 02:16:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 02:16:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-19 02:16:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 02:16:34,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 02:16:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 02:16:34,240 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 02:16:34,335 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 02:16:34,336 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 02:16:34,590 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 02:16:34,596 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 02:16:34,596 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-19 02:16:34,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 02:16:34 BoogieIcfgContainer [2022-01-19 02:16:34,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 02:16:34,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 02:16:34,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 02:16:34,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 02:16:34,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 02:16:33" (1/3) ... [2022-01-19 02:16:34,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6007121e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 02:16:34, skipping insertion in model container [2022-01-19 02:16:34,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:16:34" (2/3) ... [2022-01-19 02:16:34,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6007121e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 02:16:34, skipping insertion in model container [2022-01-19 02:16:34,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 02:16:34" (3/3) ... [2022-01-19 02:16:34,606 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-sum-array-hom.wvr.c [2022-01-19 02:16:34,609 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 02:16:34,609 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 02:16:34,609 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 02:16:34,650 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,650 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,650 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,651 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,651 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,651 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,651 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,651 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,652 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,652 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,652 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,652 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,652 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,653 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,653 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,653 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,653 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,653 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,654 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,654 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,654 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,654 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,654 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,654 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,655 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,655 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,655 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,655 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,655 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,655 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,656 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,656 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,656 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,656 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,657 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,658 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,671 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,672 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,672 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,672 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,672 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,672 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,673 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,673 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,673 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,673 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,673 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,673 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,673 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,674 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,674 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,674 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,674 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,674 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,675 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,675 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,675 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,675 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,676 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,676 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,676 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,676 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,676 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,676 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,676 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,677 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,677 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,677 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,677 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,677 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,678 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,678 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,678 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,678 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,678 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,678 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,678 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,679 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,679 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,681 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,681 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,681 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,681 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,681 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,683 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,683 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,683 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,683 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,683 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,684 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,684 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,684 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,684 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,684 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:16:34,689 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-19 02:16:34,719 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 02:16:34,723 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 02:16:34,723 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 02:16:34,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 158 places, 160 transitions, 344 flow [2022-01-19 02:16:34,788 INFO L129 PetriNetUnfolder]: 12/157 cut-off events. [2022-01-19 02:16:34,788 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 02:16:34,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 157 events. 12/157 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 106 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2022-01-19 02:16:34,791 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 160 transitions, 344 flow [2022-01-19 02:16:34,802 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 146 transitions, 310 flow [2022-01-19 02:16:34,826 INFO L129 PetriNetUnfolder]: 12/145 cut-off events. [2022-01-19 02:16:34,826 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 02:16:34,827 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:16:34,827 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:34,827 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:16:34,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:16:34,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1367986410, now seen corresponding path program 1 times [2022-01-19 02:16:34,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:16:34,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654756811] [2022-01-19 02:16:34,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:16:34,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:16:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:16:35,273 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 02:16:35,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:16:35,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654756811] [2022-01-19 02:16:35,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654756811] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 02:16:35,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 02:16:35,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 02:16:35,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065959428] [2022-01-19 02:16:35,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 02:16:35,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 02:16:35,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:16:35,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 02:16:35,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-19 02:16:35,311 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2022-01-19 02:16:35,315 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 146 transitions, 310 flow. Second operand has 7 states, 7 states have (on average 122.57142857142857) internal successors, (858), 7 states have internal predecessors, (858), 0 states have call successors, (0), 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 02:16:35,315 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:16:35,315 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2022-01-19 02:16:35,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:16:35,554 INFO L129 PetriNetUnfolder]: 49/376 cut-off events. [2022-01-19 02:16:35,555 INFO L130 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2022-01-19 02:16:35,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 376 events. 49/376 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1383 event pairs, 8 based on Foata normal form. 58/404 useless extension candidates. Maximal degree in co-relation 208. Up to 45 conditions per place. [2022-01-19 02:16:35,564 INFO L132 encePairwiseOnDemand]: 139/160 looper letters, 47 selfloop transitions, 9 changer transitions 11/173 dead transitions. [2022-01-19 02:16:35,564 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 173 transitions, 534 flow [2022-01-19 02:16:35,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 02:16:35,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 02:16:35,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1397 transitions. [2022-01-19 02:16:35,585 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.79375 [2022-01-19 02:16:35,585 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1397 transitions. [2022-01-19 02:16:35,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1397 transitions. [2022-01-19 02:16:35,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:16:35,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1397 transitions. [2022-01-19 02:16:35,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 127.0) internal successors, (1397), 11 states have internal predecessors, (1397), 0 states have call successors, (0), 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 02:16:35,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 160.0) internal successors, (1920), 12 states have internal predecessors, (1920), 0 states have call successors, (0), 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 02:16:35,605 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 160.0) internal successors, (1920), 12 states have internal predecessors, (1920), 0 states have call successors, (0), 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 02:16:35,606 INFO L186 Difference]: Start difference. First operand has 144 places, 146 transitions, 310 flow. Second operand 11 states and 1397 transitions. [2022-01-19 02:16:35,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 173 transitions, 534 flow [2022-01-19 02:16:35,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 173 transitions, 498 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-19 02:16:35,619 INFO L242 Difference]: Finished difference. Result has 152 places, 140 transitions, 327 flow [2022-01-19 02:16:35,621 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=327, PETRI_PLACES=152, PETRI_TRANSITIONS=140} [2022-01-19 02:16:35,625 INFO L334 CegarLoopForPetriNet]: 144 programPoint places, 8 predicate places. [2022-01-19 02:16:35,626 INFO L470 AbstractCegarLoop]: Abstraction has has 152 places, 140 transitions, 327 flow [2022-01-19 02:16:35,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 122.57142857142857) internal successors, (858), 7 states have internal predecessors, (858), 0 states have call successors, (0), 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 02:16:35,626 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:16:35,628 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:35,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 02:16:35,628 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:16:35,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:16:35,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1354690984, now seen corresponding path program 1 times [2022-01-19 02:16:35,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:16:35,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949411457] [2022-01-19 02:16:35,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:16:35,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:16:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:16:35,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 02:16:35,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:16:35,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949411457] [2022-01-19 02:16:35,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949411457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 02:16:35,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 02:16:35,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 02:16:35,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722641304] [2022-01-19 02:16:35,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 02:16:35,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 02:16:35,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:16:35,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 02:16:35,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 02:16:35,804 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 160 [2022-01-19 02:16:35,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 140 transitions, 327 flow. Second operand has 7 states, 7 states have (on average 125.42857142857143) internal successors, (878), 7 states have internal predecessors, (878), 0 states have call successors, (0), 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 02:16:35,805 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:16:35,806 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 160 [2022-01-19 02:16:35,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:16:35,972 INFO L129 PetriNetUnfolder]: 184/756 cut-off events. [2022-01-19 02:16:35,973 INFO L130 PetriNetUnfolder]: For 66/72 co-relation queries the response was YES. [2022-01-19 02:16:35,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 756 events. 184/756 cut-off events. For 66/72 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4268 event pairs, 85 based on Foata normal form. 0/630 useless extension candidates. Maximal degree in co-relation 1197. Up to 252 conditions per place. [2022-01-19 02:16:35,978 INFO L132 encePairwiseOnDemand]: 151/160 looper letters, 41 selfloop transitions, 8 changer transitions 0/160 dead transitions. [2022-01-19 02:16:35,978 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 160 transitions, 473 flow [2022-01-19 02:16:35,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 02:16:35,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 02:16:35,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1026 transitions. [2022-01-19 02:16:35,980 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8015625 [2022-01-19 02:16:35,980 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1026 transitions. [2022-01-19 02:16:35,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1026 transitions. [2022-01-19 02:16:35,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:16:35,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1026 transitions. [2022-01-19 02:16:35,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 128.25) internal successors, (1026), 8 states have internal predecessors, (1026), 0 states have call successors, (0), 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 02:16:35,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 160.0) internal successors, (1440), 9 states have internal predecessors, (1440), 0 states have call successors, (0), 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 02:16:35,984 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 160.0) internal successors, (1440), 9 states have internal predecessors, (1440), 0 states have call successors, (0), 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 02:16:35,984 INFO L186 Difference]: Start difference. First operand has 152 places, 140 transitions, 327 flow. Second operand 8 states and 1026 transitions. [2022-01-19 02:16:35,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 160 transitions, 473 flow [2022-01-19 02:16:35,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 160 transitions, 469 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-01-19 02:16:35,988 INFO L242 Difference]: Finished difference. Result has 150 places, 143 transitions, 359 flow [2022-01-19 02:16:35,988 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=359, PETRI_PLACES=150, PETRI_TRANSITIONS=143} [2022-01-19 02:16:35,989 INFO L334 CegarLoopForPetriNet]: 144 programPoint places, 6 predicate places. [2022-01-19 02:16:35,989 INFO L470 AbstractCegarLoop]: Abstraction has has 150 places, 143 transitions, 359 flow [2022-01-19 02:16:35,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 125.42857142857143) internal successors, (878), 7 states have internal predecessors, (878), 0 states have call successors, (0), 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 02:16:35,990 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:16:35,990 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:35,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 02:16:35,990 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:16:35,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:16:35,990 INFO L85 PathProgramCache]: Analyzing trace with hash 73956418, now seen corresponding path program 1 times [2022-01-19 02:16:35,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:16:35,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175514845] [2022-01-19 02:16:35,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:16:35,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:16:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:16:36,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 02:16:36,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:16:36,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175514845] [2022-01-19 02:16:36,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175514845] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 02:16:36,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 02:16:36,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 02:16:36,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473297186] [2022-01-19 02:16:36,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 02:16:36,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 02:16:36,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:16:36,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 02:16:36,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-19 02:16:36,110 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 160 [2022-01-19 02:16:36,111 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 143 transitions, 359 flow. Second operand has 10 states, 10 states have (on average 104.1) internal successors, (1041), 10 states have internal predecessors, (1041), 0 states have call successors, (0), 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 02:16:36,111 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:16:36,111 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 160 [2022-01-19 02:16:36,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:16:36,688 INFO L129 PetriNetUnfolder]: 856/2248 cut-off events. [2022-01-19 02:16:36,689 INFO L130 PetriNetUnfolder]: For 313/335 co-relation queries the response was YES. [2022-01-19 02:16:36,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3960 conditions, 2248 events. 856/2248 cut-off events. For 313/335 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 17056 event pairs, 565 based on Foata normal form. 21/1945 useless extension candidates. Maximal degree in co-relation 3404. Up to 1089 conditions per place. [2022-01-19 02:16:36,705 INFO L132 encePairwiseOnDemand]: 146/160 looper letters, 65 selfloop transitions, 13 changer transitions 0/172 dead transitions. [2022-01-19 02:16:36,705 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 172 transitions, 583 flow [2022-01-19 02:16:36,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 02:16:36,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 02:16:36,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1379 transitions. [2022-01-19 02:16:36,708 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6629807692307692 [2022-01-19 02:16:36,708 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1379 transitions. [2022-01-19 02:16:36,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1379 transitions. [2022-01-19 02:16:36,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:16:36,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1379 transitions. [2022-01-19 02:16:36,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 106.07692307692308) internal successors, (1379), 13 states have internal predecessors, (1379), 0 states have call successors, (0), 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 02:16:36,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 160.0) internal successors, (2240), 14 states have internal predecessors, (2240), 0 states have call successors, (0), 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 02:16:36,713 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 160.0) internal successors, (2240), 14 states have internal predecessors, (2240), 0 states have call successors, (0), 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 02:16:36,713 INFO L186 Difference]: Start difference. First operand has 150 places, 143 transitions, 359 flow. Second operand 13 states and 1379 transitions. [2022-01-19 02:16:36,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 172 transitions, 583 flow [2022-01-19 02:16:36,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 172 transitions, 573 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 02:16:36,718 INFO L242 Difference]: Finished difference. Result has 163 places, 147 transitions, 402 flow [2022-01-19 02:16:36,718 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=402, PETRI_PLACES=163, PETRI_TRANSITIONS=147} [2022-01-19 02:16:36,718 INFO L334 CegarLoopForPetriNet]: 144 programPoint places, 19 predicate places. [2022-01-19 02:16:36,719 INFO L470 AbstractCegarLoop]: Abstraction has has 163 places, 147 transitions, 402 flow [2022-01-19 02:16:36,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 104.1) internal successors, (1041), 10 states have internal predecessors, (1041), 0 states have call successors, (0), 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 02:16:36,719 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:16:36,719 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:36,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 02:16:36,720 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:16:36,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:16:36,720 INFO L85 PathProgramCache]: Analyzing trace with hash 2069950516, now seen corresponding path program 1 times [2022-01-19 02:16:36,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:16:36,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674046323] [2022-01-19 02:16:36,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:16:36,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:16:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:16:36,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 02:16:36,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:16:36,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674046323] [2022-01-19 02:16:36,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674046323] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 02:16:36,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 02:16:36,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 02:16:36,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308487875] [2022-01-19 02:16:36,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 02:16:36,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 02:16:36,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:16:36,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 02:16:36,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 02:16:36,969 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 160 [2022-01-19 02:16:36,969 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 147 transitions, 402 flow. Second operand has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 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 02:16:36,969 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:16:36,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 160 [2022-01-19 02:16:36,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:16:37,365 INFO L129 PetriNetUnfolder]: 640/1565 cut-off events. [2022-01-19 02:16:37,365 INFO L130 PetriNetUnfolder]: For 402/420 co-relation queries the response was YES. [2022-01-19 02:16:37,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3024 conditions, 1565 events. 640/1565 cut-off events. For 402/420 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 10378 event pairs, 440 based on Foata normal form. 18/1392 useless extension candidates. Maximal degree in co-relation 2728. Up to 909 conditions per place. [2022-01-19 02:16:37,373 INFO L132 encePairwiseOnDemand]: 148/160 looper letters, 44 selfloop transitions, 6 changer transitions 21/165 dead transitions. [2022-01-19 02:16:37,373 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 165 transitions, 584 flow [2022-01-19 02:16:37,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 02:16:37,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 02:16:37,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1181 transitions. [2022-01-19 02:16:37,376 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6710227272727273 [2022-01-19 02:16:37,376 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1181 transitions. [2022-01-19 02:16:37,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1181 transitions. [2022-01-19 02:16:37,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:16:37,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1181 transitions. [2022-01-19 02:16:37,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 107.36363636363636) internal successors, (1181), 11 states have internal predecessors, (1181), 0 states have call successors, (0), 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 02:16:37,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 160.0) internal successors, (1920), 12 states have internal predecessors, (1920), 0 states have call successors, (0), 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 02:16:37,380 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 160.0) internal successors, (1920), 12 states have internal predecessors, (1920), 0 states have call successors, (0), 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 02:16:37,380 INFO L186 Difference]: Start difference. First operand has 163 places, 147 transitions, 402 flow. Second operand 11 states and 1181 transitions. [2022-01-19 02:16:37,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 165 transitions, 584 flow [2022-01-19 02:16:37,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 165 transitions, 567 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-01-19 02:16:37,383 INFO L242 Difference]: Finished difference. Result has 168 places, 141 transitions, 363 flow [2022-01-19 02:16:37,383 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=363, PETRI_PLACES=168, PETRI_TRANSITIONS=141} [2022-01-19 02:16:37,384 INFO L334 CegarLoopForPetriNet]: 144 programPoint places, 24 predicate places. [2022-01-19 02:16:37,384 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 141 transitions, 363 flow [2022-01-19 02:16:37,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 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 02:16:37,385 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:16:37,385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:37,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 02:16:37,385 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:16:37,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:16:37,385 INFO L85 PathProgramCache]: Analyzing trace with hash -40833583, now seen corresponding path program 1 times [2022-01-19 02:16:37,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:16:37,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992648772] [2022-01-19 02:16:37,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:16:37,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:16:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:16:37,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:37,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:16:37,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992648772] [2022-01-19 02:16:37,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992648772] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 02:16:37,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491487280] [2022-01-19 02:16:37,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:16:37,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:16:37,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 02:16:37,493 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 02:16:37,494 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 02:16:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:16:37,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 02:16:37,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 02:16:37,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:37,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 02:16:38,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:38,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491487280] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 02:16:38,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 02:16:38,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 18 [2022-01-19 02:16:38,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775643537] [2022-01-19 02:16:38,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 02:16:38,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 02:16:38,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:16:38,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 02:16:38,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-01-19 02:16:38,160 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 160 [2022-01-19 02:16:38,161 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 141 transitions, 363 flow. Second operand has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 0 states have call successors, (0), 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 02:16:38,161 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:16:38,162 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 160 [2022-01-19 02:16:38,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:16:38,653 INFO L129 PetriNetUnfolder]: 1394/3136 cut-off events. [2022-01-19 02:16:38,653 INFO L130 PetriNetUnfolder]: For 843/844 co-relation queries the response was YES. [2022-01-19 02:16:38,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6283 conditions, 3136 events. 1394/3136 cut-off events. For 843/844 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 24659 event pairs, 430 based on Foata normal form. 9/3058 useless extension candidates. Maximal degree in co-relation 6186. Up to 619 conditions per place. [2022-01-19 02:16:38,676 INFO L132 encePairwiseOnDemand]: 149/160 looper letters, 72 selfloop transitions, 17 changer transitions 0/192 dead transitions. [2022-01-19 02:16:38,676 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 192 transitions, 682 flow [2022-01-19 02:16:38,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 02:16:38,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 02:16:38,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1343 transitions. [2022-01-19 02:16:38,680 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7630681818181818 [2022-01-19 02:16:38,680 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1343 transitions. [2022-01-19 02:16:38,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1343 transitions. [2022-01-19 02:16:38,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:16:38,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1343 transitions. [2022-01-19 02:16:38,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 122.0909090909091) internal successors, (1343), 11 states have internal predecessors, (1343), 0 states have call successors, (0), 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 02:16:38,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 160.0) internal successors, (1920), 12 states have internal predecessors, (1920), 0 states have call successors, (0), 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 02:16:38,687 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 160.0) internal successors, (1920), 12 states have internal predecessors, (1920), 0 states have call successors, (0), 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 02:16:38,688 INFO L186 Difference]: Start difference. First operand has 168 places, 141 transitions, 363 flow. Second operand 11 states and 1343 transitions. [2022-01-19 02:16:38,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 192 transitions, 682 flow [2022-01-19 02:16:38,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 192 transitions, 624 flow, removed 23 selfloop flow, removed 14 redundant places. [2022-01-19 02:16:38,694 INFO L242 Difference]: Finished difference. Result has 157 places, 153 transitions, 427 flow [2022-01-19 02:16:38,695 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=427, PETRI_PLACES=157, PETRI_TRANSITIONS=153} [2022-01-19 02:16:38,695 INFO L334 CegarLoopForPetriNet]: 144 programPoint places, 13 predicate places. [2022-01-19 02:16:38,696 INFO L470 AbstractCegarLoop]: Abstraction has has 157 places, 153 transitions, 427 flow [2022-01-19 02:16:38,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 0 states have call successors, (0), 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 02:16:38,696 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:16:38,696 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:38,738 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 02:16:38,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:16:38,921 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:16:38,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:16:38,922 INFO L85 PathProgramCache]: Analyzing trace with hash -434299201, now seen corresponding path program 2 times [2022-01-19 02:16:38,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:16:38,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358302272] [2022-01-19 02:16:38,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:16:38,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:16:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:16:39,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:39,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:16:39,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358302272] [2022-01-19 02:16:39,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358302272] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 02:16:39,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212929061] [2022-01-19 02:16:39,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 02:16:39,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:16:39,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 02:16:39,032 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 02:16:39,033 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 02:16:39,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 02:16:39,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 02:16:39,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 02:16:39,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 02:16:39,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:39,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 02:16:39,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:39,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212929061] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 02:16:39,520 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 02:16:39,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 17 [2022-01-19 02:16:39,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080817881] [2022-01-19 02:16:39,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 02:16:39,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-19 02:16:39,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:16:39,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-19 02:16:39,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2022-01-19 02:16:39,523 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 160 [2022-01-19 02:16:39,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 153 transitions, 427 flow. Second operand has 17 states, 17 states have (on average 113.6470588235294) internal successors, (1932), 17 states have internal predecessors, (1932), 0 states have call successors, (0), 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 02:16:39,524 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:16:39,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 160 [2022-01-19 02:16:39,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:16:40,940 INFO L129 PetriNetUnfolder]: 3980/8113 cut-off events. [2022-01-19 02:16:40,940 INFO L130 PetriNetUnfolder]: For 3000/3053 co-relation queries the response was YES. [2022-01-19 02:16:40,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18143 conditions, 8113 events. 3980/8113 cut-off events. For 3000/3053 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 68580 event pairs, 329 based on Foata normal form. 34/7702 useless extension candidates. Maximal degree in co-relation 18048. Up to 745 conditions per place. [2022-01-19 02:16:40,984 INFO L132 encePairwiseOnDemand]: 144/160 looper letters, 219 selfloop transitions, 88 changer transitions 0/406 dead transitions. [2022-01-19 02:16:40,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 406 transitions, 1810 flow [2022-01-19 02:16:40,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 02:16:40,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 02:16:40,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2927 transitions. [2022-01-19 02:16:40,989 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7622395833333333 [2022-01-19 02:16:40,989 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2927 transitions. [2022-01-19 02:16:40,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2927 transitions. [2022-01-19 02:16:40,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:16:40,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2927 transitions. [2022-01-19 02:16:40,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 121.95833333333333) internal successors, (2927), 24 states have internal predecessors, (2927), 0 states have call successors, (0), 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 02:16:40,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 160.0) internal successors, (4000), 25 states have internal predecessors, (4000), 0 states have call successors, (0), 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 02:16:40,998 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 160.0) internal successors, (4000), 25 states have internal predecessors, (4000), 0 states have call successors, (0), 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 02:16:40,999 INFO L186 Difference]: Start difference. First operand has 157 places, 153 transitions, 427 flow. Second operand 24 states and 2927 transitions. [2022-01-19 02:16:40,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 406 transitions, 1810 flow [2022-01-19 02:16:41,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 406 transitions, 1805 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 02:16:41,038 INFO L242 Difference]: Finished difference. Result has 195 places, 234 transitions, 1161 flow [2022-01-19 02:16:41,038 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1161, PETRI_PLACES=195, PETRI_TRANSITIONS=234} [2022-01-19 02:16:41,038 INFO L334 CegarLoopForPetriNet]: 144 programPoint places, 51 predicate places. [2022-01-19 02:16:41,038 INFO L470 AbstractCegarLoop]: Abstraction has has 195 places, 234 transitions, 1161 flow [2022-01-19 02:16:41,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 113.6470588235294) internal successors, (1932), 17 states have internal predecessors, (1932), 0 states have call successors, (0), 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 02:16:41,039 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:16:41,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:41,061 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 02:16:41,255 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,SelfDestructingSolverStorable5 [2022-01-19 02:16:41,255 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:16:41,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:16:41,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1761054417, now seen corresponding path program 1 times [2022-01-19 02:16:41,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:16:41,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143093244] [2022-01-19 02:16:41,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:16:41,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:16:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:16:41,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:41,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:16:41,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143093244] [2022-01-19 02:16:41,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143093244] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 02:16:41,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034065943] [2022-01-19 02:16:41,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:16:41,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:16:41,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 02:16:41,312 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 02:16:41,313 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 02:16:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:16:41,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 02:16:41,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 02:16:41,559 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:41,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 02:16:41,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:41,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034065943] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 02:16:41,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 02:16:41,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-01-19 02:16:41,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377336553] [2022-01-19 02:16:41,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 02:16:41,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 02:16:41,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:16:41,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 02:16:41,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-19 02:16:41,773 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 160 [2022-01-19 02:16:41,773 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 234 transitions, 1161 flow. Second operand has 7 states, 7 states have (on average 125.57142857142857) internal successors, (879), 7 states have internal predecessors, (879), 0 states have call successors, (0), 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 02:16:41,773 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:16:41,773 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 160 [2022-01-19 02:16:41,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:16:42,018 INFO L129 PetriNetUnfolder]: 674/2240 cut-off events. [2022-01-19 02:16:42,018 INFO L130 PetriNetUnfolder]: For 7035/7567 co-relation queries the response was YES. [2022-01-19 02:16:42,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6166 conditions, 2240 events. 674/2240 cut-off events. For 7035/7567 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 18349 event pairs, 110 based on Foata normal form. 129/2266 useless extension candidates. Maximal degree in co-relation 6053. Up to 370 conditions per place. [2022-01-19 02:16:42,038 INFO L132 encePairwiseOnDemand]: 152/160 looper letters, 63 selfloop transitions, 24 changer transitions 0/251 dead transitions. [2022-01-19 02:16:42,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 251 transitions, 1459 flow [2022-01-19 02:16:42,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 02:16:42,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 02:16:42,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 890 transitions. [2022-01-19 02:16:42,040 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7946428571428571 [2022-01-19 02:16:42,040 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 890 transitions. [2022-01-19 02:16:42,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 890 transitions. [2022-01-19 02:16:42,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:16:42,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 890 transitions. [2022-01-19 02:16:42,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.14285714285714) internal successors, (890), 7 states have internal predecessors, (890), 0 states have call successors, (0), 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 02:16:42,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 160.0) internal successors, (1280), 8 states have internal predecessors, (1280), 0 states have call successors, (0), 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 02:16:42,044 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 160.0) internal successors, (1280), 8 states have internal predecessors, (1280), 0 states have call successors, (0), 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 02:16:42,044 INFO L186 Difference]: Start difference. First operand has 195 places, 234 transitions, 1161 flow. Second operand 7 states and 890 transitions. [2022-01-19 02:16:42,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 251 transitions, 1459 flow [2022-01-19 02:16:42,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 251 transitions, 1413 flow, removed 7 selfloop flow, removed 8 redundant places. [2022-01-19 02:16:42,061 INFO L242 Difference]: Finished difference. Result has 194 places, 234 transitions, 1171 flow [2022-01-19 02:16:42,061 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=1098, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1171, PETRI_PLACES=194, PETRI_TRANSITIONS=234} [2022-01-19 02:16:42,061 INFO L334 CegarLoopForPetriNet]: 144 programPoint places, 50 predicate places. [2022-01-19 02:16:42,061 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 234 transitions, 1171 flow [2022-01-19 02:16:42,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 125.57142857142857) internal successors, (879), 7 states have internal predecessors, (879), 0 states have call successors, (0), 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 02:16:42,062 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:16:42,062 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:42,081 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 02:16:42,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:16:42,276 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:16:42,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:16:42,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1358578551, now seen corresponding path program 3 times [2022-01-19 02:16:42,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:16:42,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311412441] [2022-01-19 02:16:42,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:16:42,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:16:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:16:42,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 02:16:42,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:16:42,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311412441] [2022-01-19 02:16:42,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311412441] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 02:16:42,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744613731] [2022-01-19 02:16:42,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 02:16:42,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:16:42,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 02:16:42,388 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 02:16:42,412 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 02:16:42,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-19 02:16:42,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 02:16:42,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 02:16:42,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 02:16:42,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 02:16:42,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 02:16:42,951 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 02:16:42,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744613731] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 02:16:42,951 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 02:16:42,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 18 [2022-01-19 02:16:42,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568891929] [2022-01-19 02:16:42,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 02:16:42,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 02:16:42,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:16:42,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 02:16:42,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-01-19 02:16:42,956 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 160 [2022-01-19 02:16:42,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 234 transitions, 1171 flow. Second operand has 18 states, 18 states have (on average 116.94444444444444) internal successors, (2105), 18 states have internal predecessors, (2105), 0 states have call successors, (0), 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 02:16:42,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:16:42,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 160 [2022-01-19 02:16:42,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:16:43,817 INFO L129 PetriNetUnfolder]: 2825/6173 cut-off events. [2022-01-19 02:16:43,817 INFO L130 PetriNetUnfolder]: For 12942/13506 co-relation queries the response was YES. [2022-01-19 02:16:43,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18759 conditions, 6173 events. 2825/6173 cut-off events. For 12942/13506 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 51065 event pairs, 384 based on Foata normal form. 87/6045 useless extension candidates. Maximal degree in co-relation 18646. Up to 928 conditions per place. [2022-01-19 02:16:43,866 INFO L132 encePairwiseOnDemand]: 147/160 looper letters, 133 selfloop transitions, 124 changer transitions 0/377 dead transitions. [2022-01-19 02:16:43,866 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 377 transitions, 2554 flow [2022-01-19 02:16:43,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-19 02:16:43,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-01-19 02:16:43,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1819 transitions. [2022-01-19 02:16:43,869 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7579166666666667 [2022-01-19 02:16:43,870 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1819 transitions. [2022-01-19 02:16:43,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1819 transitions. [2022-01-19 02:16:43,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:16:43,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1819 transitions. [2022-01-19 02:16:43,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 121.26666666666667) internal successors, (1819), 15 states have internal predecessors, (1819), 0 states have call successors, (0), 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 02:16:43,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 160.0) internal successors, (2560), 16 states have internal predecessors, (2560), 0 states have call successors, (0), 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 02:16:43,876 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 160.0) internal successors, (2560), 16 states have internal predecessors, (2560), 0 states have call successors, (0), 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 02:16:43,876 INFO L186 Difference]: Start difference. First operand has 194 places, 234 transitions, 1171 flow. Second operand 15 states and 1819 transitions. [2022-01-19 02:16:43,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 377 transitions, 2554 flow [2022-01-19 02:16:43,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 377 transitions, 2519 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-01-19 02:16:43,913 INFO L242 Difference]: Finished difference. Result has 209 places, 301 transitions, 2112 flow [2022-01-19 02:16:43,914 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2112, PETRI_PLACES=209, PETRI_TRANSITIONS=301} [2022-01-19 02:16:43,914 INFO L334 CegarLoopForPetriNet]: 144 programPoint places, 65 predicate places. [2022-01-19 02:16:43,914 INFO L470 AbstractCegarLoop]: Abstraction has has 209 places, 301 transitions, 2112 flow [2022-01-19 02:16:43,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 116.94444444444444) internal successors, (2105), 18 states have internal predecessors, (2105), 0 states have call successors, (0), 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 02:16:43,915 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:16:43,915 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:43,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-01-19 02:16:44,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:16:44,131 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:16:44,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:16:44,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1212757809, now seen corresponding path program 4 times [2022-01-19 02:16:44,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:16:44,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759570067] [2022-01-19 02:16:44,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:16:44,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:16:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:16:44,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:44,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:16:44,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759570067] [2022-01-19 02:16:44,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759570067] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 02:16:44,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090967890] [2022-01-19 02:16:44,197 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-19 02:16:44,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:16:44,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 02:16:44,198 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 02:16:44,199 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 02:16:44,260 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-19 02:16:44,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 02:16:44,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 02:16:44,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 02:16:44,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:44,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 02:16:44,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:44,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090967890] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 02:16:44,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 02:16:44,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2022-01-19 02:16:44,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402978133] [2022-01-19 02:16:44,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 02:16:44,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 02:16:44,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:16:44,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 02:16:44,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-01-19 02:16:44,673 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 160 [2022-01-19 02:16:44,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 301 transitions, 2112 flow. Second operand has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 0 states have call successors, (0), 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 02:16:44,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:16:44,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 160 [2022-01-19 02:16:44,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:16:45,436 INFO L129 PetriNetUnfolder]: 3161/7053 cut-off events. [2022-01-19 02:16:45,436 INFO L130 PetriNetUnfolder]: For 24109/24829 co-relation queries the response was YES. [2022-01-19 02:16:45,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23872 conditions, 7053 events. 3161/7053 cut-off events. For 24109/24829 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 60548 event pairs, 522 based on Foata normal form. 224/7064 useless extension candidates. Maximal degree in co-relation 23752. Up to 1539 conditions per place. [2022-01-19 02:16:45,529 INFO L132 encePairwiseOnDemand]: 147/160 looper letters, 129 selfloop transitions, 126 changer transitions 0/375 dead transitions. [2022-01-19 02:16:45,530 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 375 transitions, 3100 flow [2022-01-19 02:16:45,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 02:16:45,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 02:16:45,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1353 transitions. [2022-01-19 02:16:45,533 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.76875 [2022-01-19 02:16:45,533 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1353 transitions. [2022-01-19 02:16:45,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1353 transitions. [2022-01-19 02:16:45,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:16:45,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1353 transitions. [2022-01-19 02:16:45,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 123.0) internal successors, (1353), 11 states have internal predecessors, (1353), 0 states have call successors, (0), 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 02:16:45,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 160.0) internal successors, (1920), 12 states have internal predecessors, (1920), 0 states have call successors, (0), 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 02:16:45,540 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 160.0) internal successors, (1920), 12 states have internal predecessors, (1920), 0 states have call successors, (0), 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 02:16:45,540 INFO L186 Difference]: Start difference. First operand has 209 places, 301 transitions, 2112 flow. Second operand 11 states and 1353 transitions. [2022-01-19 02:16:45,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 375 transitions, 3100 flow [2022-01-19 02:16:45,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 375 transitions, 3061 flow, removed 15 selfloop flow, removed 5 redundant places. [2022-01-19 02:16:45,649 INFO L242 Difference]: Finished difference. Result has 219 places, 323 transitions, 2806 flow [2022-01-19 02:16:45,649 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=2087, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2806, PETRI_PLACES=219, PETRI_TRANSITIONS=323} [2022-01-19 02:16:45,650 INFO L334 CegarLoopForPetriNet]: 144 programPoint places, 75 predicate places. [2022-01-19 02:16:45,650 INFO L470 AbstractCegarLoop]: Abstraction has has 219 places, 323 transitions, 2806 flow [2022-01-19 02:16:45,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 0 states have call successors, (0), 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 02:16:45,656 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:16:45,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:45,687 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 02:16:45,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:16:45,888 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:16:45,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:16:45,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1165057115, now seen corresponding path program 5 times [2022-01-19 02:16:45,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:16:45,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592117944] [2022-01-19 02:16:45,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:16:45,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:16:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:16:45,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 02:16:45,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:16:45,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592117944] [2022-01-19 02:16:45,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592117944] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 02:16:45,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386353011] [2022-01-19 02:16:45,962 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-19 02:16:45,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:16:45,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 02:16:45,964 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 02:16:45,965 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 02:16:46,050 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 02:16:46,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 02:16:46,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 02:16:46,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 02:16:46,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:46,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 02:16:46,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:46,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386353011] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 02:16:46,436 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 02:16:46,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 16 [2022-01-19 02:16:46,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231150422] [2022-01-19 02:16:46,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 02:16:46,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-19 02:16:46,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:16:46,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-19 02:16:46,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-01-19 02:16:46,442 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 160 [2022-01-19 02:16:46,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 323 transitions, 2806 flow. Second operand has 16 states, 16 states have (on average 113.8125) internal successors, (1821), 16 states have internal predecessors, (1821), 0 states have call successors, (0), 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 02:16:46,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:16:46,444 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 160 [2022-01-19 02:16:46,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:16:48,355 INFO L129 PetriNetUnfolder]: 5646/11597 cut-off events. [2022-01-19 02:16:48,356 INFO L130 PetriNetUnfolder]: For 61253/61510 co-relation queries the response was YES. [2022-01-19 02:16:48,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43735 conditions, 11597 events. 5646/11597 cut-off events. For 61253/61510 co-relation queries the response was YES. Maximal size of possible extension queue 493. Compared 101117 event pairs, 708 based on Foata normal form. 61/11458 useless extension candidates. Maximal degree in co-relation 43610. Up to 1166 conditions per place. [2022-01-19 02:16:48,440 INFO L132 encePairwiseOnDemand]: 143/160 looper letters, 233 selfloop transitions, 237 changer transitions 0/569 dead transitions. [2022-01-19 02:16:48,441 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 569 transitions, 5314 flow [2022-01-19 02:16:48,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 02:16:48,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 02:16:48,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2907 transitions. [2022-01-19 02:16:48,443 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.75703125 [2022-01-19 02:16:48,443 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2907 transitions. [2022-01-19 02:16:48,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2907 transitions. [2022-01-19 02:16:48,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:16:48,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2907 transitions. [2022-01-19 02:16:48,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 121.125) internal successors, (2907), 24 states have internal predecessors, (2907), 0 states have call successors, (0), 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 02:16:48,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 160.0) internal successors, (4000), 25 states have internal predecessors, (4000), 0 states have call successors, (0), 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 02:16:48,450 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 160.0) internal successors, (4000), 25 states have internal predecessors, (4000), 0 states have call successors, (0), 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 02:16:48,450 INFO L186 Difference]: Start difference. First operand has 219 places, 323 transitions, 2806 flow. Second operand 24 states and 2907 transitions. [2022-01-19 02:16:48,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 569 transitions, 5314 flow [2022-01-19 02:16:48,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 569 transitions, 5196 flow, removed 12 selfloop flow, removed 6 redundant places. [2022-01-19 02:16:48,705 INFO L242 Difference]: Finished difference. Result has 248 places, 424 transitions, 4356 flow [2022-01-19 02:16:48,705 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=2728, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=4356, PETRI_PLACES=248, PETRI_TRANSITIONS=424} [2022-01-19 02:16:48,706 INFO L334 CegarLoopForPetriNet]: 144 programPoint places, 104 predicate places. [2022-01-19 02:16:48,706 INFO L470 AbstractCegarLoop]: Abstraction has has 248 places, 424 transitions, 4356 flow [2022-01-19 02:16:48,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 113.8125) internal successors, (1821), 16 states have internal predecessors, (1821), 0 states have call successors, (0), 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 02:16:48,707 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:16:48,707 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:48,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-01-19 02:16:48,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:16:48,924 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:16:48,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:16:48,924 INFO L85 PathProgramCache]: Analyzing trace with hash -186314357, now seen corresponding path program 6 times [2022-01-19 02:16:48,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:16:48,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763569741] [2022-01-19 02:16:48,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:16:48,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:16:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:16:49,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:49,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:16:49,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763569741] [2022-01-19 02:16:49,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763569741] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 02:16:49,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079621746] [2022-01-19 02:16:49,024 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-19 02:16:49,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:16:49,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 02:16:49,025 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 02:16:49,026 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 02:16:49,092 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-01-19 02:16:49,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 02:16:49,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 02:16:49,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 02:16:49,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:49,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 02:16:49,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:16:49,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079621746] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 02:16:49,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 02:16:49,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 20 [2022-01-19 02:16:49,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003800048] [2022-01-19 02:16:49,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 02:16:49,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 02:16:49,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:16:49,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 02:16:49,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2022-01-19 02:16:49,584 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 160 [2022-01-19 02:16:49,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 424 transitions, 4356 flow. Second operand has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 0 states have call successors, (0), 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 02:16:49,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:16:49,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 160 [2022-01-19 02:16:49,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:16:50,677 INFO L129 PetriNetUnfolder]: 3171/7018 cut-off events. [2022-01-19 02:16:50,677 INFO L130 PetriNetUnfolder]: For 42577/43096 co-relation queries the response was YES. [2022-01-19 02:16:50,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28375 conditions, 7018 events. 3171/7018 cut-off events. For 42577/43096 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 60399 event pairs, 409 based on Foata normal form. 69/6885 useless extension candidates. Maximal degree in co-relation 28238. Up to 1998 conditions per place. [2022-01-19 02:16:50,790 INFO L132 encePairwiseOnDemand]: 148/160 looper letters, 124 selfloop transitions, 163 changer transitions 0/453 dead transitions. [2022-01-19 02:16:50,790 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 453 transitions, 5093 flow [2022-01-19 02:16:50,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 02:16:50,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 02:16:50,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1220 transitions. [2022-01-19 02:16:50,792 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7625 [2022-01-19 02:16:50,792 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1220 transitions. [2022-01-19 02:16:50,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1220 transitions. [2022-01-19 02:16:50,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:16:50,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1220 transitions. [2022-01-19 02:16:50,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 122.0) internal successors, (1220), 10 states have internal predecessors, (1220), 0 states have call successors, (0), 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 02:16:50,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 160.0) internal successors, (1760), 11 states have internal predecessors, (1760), 0 states have call successors, (0), 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 02:16:50,795 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 160.0) internal successors, (1760), 11 states have internal predecessors, (1760), 0 states have call successors, (0), 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 02:16:50,795 INFO L186 Difference]: Start difference. First operand has 248 places, 424 transitions, 4356 flow. Second operand 10 states and 1220 transitions. [2022-01-19 02:16:50,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 453 transitions, 5093 flow [2022-01-19 02:16:50,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 453 transitions, 4966 flow, removed 38 selfloop flow, removed 6 redundant places. [2022-01-19 02:16:50,962 INFO L242 Difference]: Finished difference. Result has 254 places, 427 transitions, 4845 flow [2022-01-19 02:16:50,962 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=4237, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4845, PETRI_PLACES=254, PETRI_TRANSITIONS=427} [2022-01-19 02:16:50,963 INFO L334 CegarLoopForPetriNet]: 144 programPoint places, 110 predicate places. [2022-01-19 02:16:50,963 INFO L470 AbstractCegarLoop]: Abstraction has has 254 places, 427 transitions, 4845 flow [2022-01-19 02:16:50,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 0 states have call successors, (0), 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 02:16:50,963 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:16:50,963 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:50,988 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 02:16:51,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:16:51,180 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:16:51,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:16:51,181 INFO L85 PathProgramCache]: Analyzing trace with hash 2057679709, now seen corresponding path program 1 times [2022-01-19 02:16:51,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:16:51,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246840158] [2022-01-19 02:16:51,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:16:51,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:16:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:16:52,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 02:16:52,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:16:52,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246840158] [2022-01-19 02:16:52,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246840158] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 02:16:52,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531340181] [2022-01-19 02:16:52,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:16:52,040 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:16:52,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 02:16:52,041 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 02:16:52,042 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 02:16:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:16:52,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 47 conjunts are in the unsatisfiable core [2022-01-19 02:16:52,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 02:16:53,466 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 02:16:53,467 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2022-01-19 02:16:53,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 02:16:53,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 02:16:54,424 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 02:16:54,424 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 Received shutdown request... [2022-01-19 02:31:10,575 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-01-19 02:31:10,579 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-19 02:31:10,588 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 02:31:10,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-01-19 02:31:10,603 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 02:31:10,795 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,SelfDestructingSolverStorable11 [2022-01-19 02:31:10,795 WARN L594 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 128 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 12 for 31ms.. [2022-01-19 02:31:10,797 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-19 02:31:10,797 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-19 02:31:10,797 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-19 02:31:10,799 INFO L732 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1] [2022-01-19 02:31:10,800 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 02:31:10,800 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 02:31:10,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 02:31:10 BasicIcfg [2022-01-19 02:31:10,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 02:31:10,815 INFO L158 Benchmark]: Toolchain (without parser) took 876884.32ms. Allocated memory was 379.6MB in the beginning and 2.4GB in the end (delta: 2.0GB). Free memory was 325.3MB in the beginning and 894.5MB in the end (delta: -569.2MB). Peak memory consumption was 1.6GB. Max. memory is 16.0GB. [2022-01-19 02:31:10,815 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 379.6MB. Free memory is still 341.5MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 02:31:10,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.72ms. Allocated memory was 379.6MB in the beginning and 539.0MB in the end (delta: 159.4MB). Free memory was 325.1MB in the beginning and 512.5MB in the end (delta: -187.4MB). Peak memory consumption was 9.8MB. Max. memory is 16.0GB. [2022-01-19 02:31:10,815 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.65ms. Allocated memory is still 539.0MB. Free memory was 512.5MB in the beginning and 509.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-19 02:31:10,816 INFO L158 Benchmark]: Boogie Preprocessor took 15.82ms. Allocated memory is still 539.0MB. Free memory was 509.3MB in the beginning and 508.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 02:31:10,816 INFO L158 Benchmark]: RCFGBuilder took 413.87ms. Allocated memory is still 539.0MB. Free memory was 508.3MB in the beginning and 490.5MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-19 02:31:10,816 INFO L158 Benchmark]: TraceAbstraction took 876201.30ms. Allocated memory was 539.0MB in the beginning and 2.4GB in the end (delta: 1.8GB). Free memory was 489.4MB in the beginning and 894.5MB in the end (delta: -405.1MB). Peak memory consumption was 1.6GB. Max. memory is 16.0GB. [2022-01-19 02:31:10,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 379.6MB. Free memory is still 341.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 200.72ms. Allocated memory was 379.6MB in the beginning and 539.0MB in the end (delta: 159.4MB). Free memory was 325.1MB in the beginning and 512.5MB in the end (delta: -187.4MB). Peak memory consumption was 9.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 28.65ms. Allocated memory is still 539.0MB. Free memory was 512.5MB in the beginning and 509.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 15.82ms. Allocated memory is still 539.0MB. Free memory was 509.3MB in the beginning and 508.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 413.87ms. Allocated memory is still 539.0MB. Free memory was 508.3MB in the beginning and 490.5MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 876201.30ms. Allocated memory was 539.0MB in the beginning and 2.4GB in the end (delta: 1.8GB). Free memory was 489.4MB in the beginning and 894.5MB in the end (delta: -405.1MB). Peak memory consumption was 1.6GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 128 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 12 for 31ms.. - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 128 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 12 for 31ms.. - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 128 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 12 for 31ms.. - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 128 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 12 for 31ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 185 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 876.1s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2014 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2014 mSDsluCounter, 1111 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1228 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3285 IncrementalHoareTripleChecker+Invalid, 3327 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 277 mSDtfsCounter, 3285 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1873 GetRequests, 1624 SyntacticMatches, 14 SemanticMatches, 235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1057 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4845occurred in iteration=11, InterpolantAutomatonStates: 145, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 2125 NumberOfCodeBlocks, 2115 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2940 ConstructedInterpolants, 0 QuantifiedInterpolants, 8732 SizeOfPredicates, 56 NumberOfNonLiveVariables, 1947 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 25 InterpolantComputations, 8 PerfectInterpolantSequences, 27/45 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown