/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-After.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 14:10:58,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 14:10:58,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 14:10:58,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 14:10:58,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 14:10:58,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 14:10:58,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 14:10:58,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 14:10:58,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 14:10:58,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 14:10:58,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 14:10:58,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 14:10:58,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 14:10:58,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 14:10:58,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 14:10:58,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 14:10:58,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 14:10:58,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 14:10:58,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 14:10:58,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 14:10:58,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 14:10:58,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 14:10:58,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 14:10:58,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 14:10:58,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 14:10:58,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 14:10:58,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 14:10:58,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 14:10:58,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 14:10:58,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 14:10:58,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 14:10:58,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 14:10:58,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 14:10:58,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 14:10:58,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 14:10:58,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 14:10:58,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 14:10:58,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 14:10:58,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 14:10:58,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 14:10:58,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 14:10:58,810 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-After.epf [2022-01-19 14:10:58,834 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 14:10:58,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 14:10:58,835 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 14:10:58,836 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 14:10:58,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 14:10:58,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 14:10:58,836 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 14:10:58,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 14:10:58,836 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 14:10:58,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 14:10:58,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 14:10:58,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 14:10:58,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 14:10:58,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 14:10:58,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 14:10:58,837 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 14:10:58,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 14:10:58,837 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 14:10:58,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 14:10:58,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 14:10:58,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 14:10:58,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 14:10:58,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 14:10:58,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 14:10:58,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 14:10:58,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 14:10:58,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 14:10:58,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 14:10:58,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 14:10:58,839 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 14:10:58,839 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 14:10:58,839 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 14:10:58,840 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 14:10:59,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 14:10:59,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 14:10:59,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 14:10:59,031 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 14:10:59,032 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 14:10:59,032 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2022-01-19 14:10:59,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e5b75b0c/cffedca48d3c4916adbbb4ef60b0d2e7/FLAGc9dca85fc [2022-01-19 14:10:59,394 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 14:10:59,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2022-01-19 14:10:59,403 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e5b75b0c/cffedca48d3c4916adbbb4ef60b0d2e7/FLAGc9dca85fc [2022-01-19 14:10:59,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e5b75b0c/cffedca48d3c4916adbbb4ef60b0d2e7 [2022-01-19 14:10:59,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 14:10:59,803 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 14:10:59,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 14:10:59,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 14:10:59,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 14:10:59,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 02:10:59" (1/1) ... [2022-01-19 14:10:59,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@323a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:10:59, skipping insertion in model container [2022-01-19 14:10:59,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 02:10:59" (1/1) ... [2022-01-19 14:10:59,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 14:10:59,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 14:11:00,036 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-min-max-inc-dec.wvr.c[3271,3284] [2022-01-19 14:11:00,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 14:11:00,055 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 14:11:00,087 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-min-max-inc-dec.wvr.c[3271,3284] [2022-01-19 14:11:00,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 14:11:00,103 INFO L208 MainTranslator]: Completed translation [2022-01-19 14:11:00,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:11:00 WrapperNode [2022-01-19 14:11:00,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 14:11:00,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 14:11:00,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 14:11:00,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 14:11:00,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:11:00" (1/1) ... [2022-01-19 14:11:00,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:11:00" (1/1) ... [2022-01-19 14:11:00,129 INFO L137 Inliner]: procedures = 27, calls = 75, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 174 [2022-01-19 14:11:00,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 14:11:00,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 14:11:00,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 14:11:00,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 14:11:00,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:11:00" (1/1) ... [2022-01-19 14:11:00,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:11:00" (1/1) ... [2022-01-19 14:11:00,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:11:00" (1/1) ... [2022-01-19 14:11:00,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:11:00" (1/1) ... [2022-01-19 14:11:00,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:11:00" (1/1) ... [2022-01-19 14:11:00,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:11:00" (1/1) ... [2022-01-19 14:11:00,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:11:00" (1/1) ... [2022-01-19 14:11:00,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 14:11:00,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 14:11:00,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 14:11:00,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 14:11:00,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:11:00" (1/1) ... [2022-01-19 14:11:00,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 14:11:00,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 14:11:00,172 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 14:11:00,175 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 14:11:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 14:11:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 14:11:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 14:11:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 14:11:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 14:11:00,195 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 14:11:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 14:11:00,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 14:11:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 14:11:00,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 14:11:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-19 14:11:00,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-19 14:11:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 14:11:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-01-19 14:11:00,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-01-19 14:11:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 14:11:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 14:11:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-19 14:11:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 14:11:00,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 14:11:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 14:11:00,198 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 14:11:00,306 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 14:11:00,307 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 14:11:00,693 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 14:11:00,810 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 14:11:00,810 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-19 14:11:00,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 02:11:00 BoogieIcfgContainer [2022-01-19 14:11:00,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 14:11:00,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 14:11:00,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 14:11:00,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 14:11:00,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 02:10:59" (1/3) ... [2022-01-19 14:11:00,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f253376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 02:11:00, skipping insertion in model container [2022-01-19 14:11:00,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:11:00" (2/3) ... [2022-01-19 14:11:00,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f253376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 02:11:00, skipping insertion in model container [2022-01-19 14:11:00,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 02:11:00" (3/3) ... [2022-01-19 14:11:00,821 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2022-01-19 14:11:00,824 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 14:11:00,824 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 14:11:00,824 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 14:11:00,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,869 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,870 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,870 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,870 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,870 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,870 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,871 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,879 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,879 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,879 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,880 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,880 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,881 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,881 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,881 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,881 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,881 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,881 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,881 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,881 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,882 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,882 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,882 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,882 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,882 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,882 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,883 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,883 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,884 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,885 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,885 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,885 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,885 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,885 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,885 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,886 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,886 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,886 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,886 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,887 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,887 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,887 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,887 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,887 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,887 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,888 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,888 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,888 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,888 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,888 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,888 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,888 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,888 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,889 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,889 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,889 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,889 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,889 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,889 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,889 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,889 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,890 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,890 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,890 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,890 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,890 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,890 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,890 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,890 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,891 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,891 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,891 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,891 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,891 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,891 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,892 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,892 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,892 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,892 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,892 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,892 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,892 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,892 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,892 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,893 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,893 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,893 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,893 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,893 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,893 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,894 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,894 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,894 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,894 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,894 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,894 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,894 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,895 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,895 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,895 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,895 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,895 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,896 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,896 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,903 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,903 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,904 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,904 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,904 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,904 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,904 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,904 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,904 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,904 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,905 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,905 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,905 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,905 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,905 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,905 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,905 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,906 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,906 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,906 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,910 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,910 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,910 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,910 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,910 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,910 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,911 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,911 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,911 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,911 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork4_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,911 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,911 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,912 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,912 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,912 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,912 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 14:11:00,916 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-01-19 14:11:00,958 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 14:11:00,986 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 14:11:00,987 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-19 14:11:01,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 197 places, 195 transitions, 430 flow [2022-01-19 14:11:01,097 INFO L129 PetriNetUnfolder]: 14/190 cut-off events. [2022-01-19 14:11:01,097 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-01-19 14:11:01,101 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 190 events. 14/190 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 134 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2022-01-19 14:11:01,101 INFO L82 GeneralOperation]: Start removeDead. Operand has 197 places, 195 transitions, 430 flow [2022-01-19 14:11:01,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 175 transitions, 380 flow [2022-01-19 14:11:01,150 INFO L129 PetriNetUnfolder]: 14/174 cut-off events. [2022-01-19 14:11:01,150 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-01-19 14:11:01,150 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 14:11:01,151 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 14:11:01,152 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 14:11:01,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 14:11:01,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1870663669, now seen corresponding path program 1 times [2022-01-19 14:11:01,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 14:11:01,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704808480] [2022-01-19 14:11:01,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 14:11:01,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 14:11:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 14:11:01,431 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 14:11:01,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 14:11:01,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704808480] [2022-01-19 14:11:01,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704808480] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 14:11:01,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 14:11:01,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 14:11:01,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026288745] [2022-01-19 14:11:01,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 14:11:01,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 14:11:01,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 14:11:01,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 14:11:01,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 14:11:01,457 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 195 [2022-01-19 14:11:01,463 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 175 transitions, 380 flow. Second operand has 2 states, 2 states have (on average 175.5) internal successors, (351), 2 states have internal predecessors, (351), 0 states have call successors, (0), 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 14:11:01,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 14:11:01,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 195 [2022-01-19 14:11:01,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 14:11:01,671 INFO L129 PetriNetUnfolder]: 308/1173 cut-off events. [2022-01-19 14:11:01,671 INFO L130 PetriNetUnfolder]: For 136/136 co-relation queries the response was YES. [2022-01-19 14:11:01,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1738 conditions, 1173 events. 308/1173 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 7407 event pairs, 205 based on Foata normal form. 235/1256 useless extension candidates. Maximal degree in co-relation 1528. Up to 402 conditions per place. [2022-01-19 14:11:01,692 INFO L132 encePairwiseOnDemand]: 186/195 looper letters, 16 selfloop transitions, 0 changer transitions 4/166 dead transitions. [2022-01-19 14:11:01,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 166 transitions, 394 flow [2022-01-19 14:11:01,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 14:11:01,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 14:11:01,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 363 transitions. [2022-01-19 14:11:01,710 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9307692307692308 [2022-01-19 14:11:01,711 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 363 transitions. [2022-01-19 14:11:01,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 363 transitions. [2022-01-19 14:11:01,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 14:11:01,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 363 transitions. [2022-01-19 14:11:01,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 181.5) internal successors, (363), 2 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 14:11:01,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 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 14:11:01,723 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 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 14:11:01,724 INFO L186 Difference]: Start difference. First operand has 177 places, 175 transitions, 380 flow. Second operand 2 states and 363 transitions. [2022-01-19 14:11:01,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 166 transitions, 394 flow [2022-01-19 14:11:01,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 166 transitions, 374 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-01-19 14:11:01,738 INFO L242 Difference]: Finished difference. Result has 168 places, 162 transitions, 334 flow [2022-01-19 14:11:01,748 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=334, PETRI_PLACES=168, PETRI_TRANSITIONS=162} [2022-01-19 14:11:01,758 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, -9 predicate places. [2022-01-19 14:11:01,758 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 162 transitions, 334 flow [2022-01-19 14:11:01,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 175.5) internal successors, (351), 2 states have internal predecessors, (351), 0 states have call successors, (0), 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 14:11:01,759 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 14:11:01,759 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 14:11:01,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 14:11:01,759 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 14:11:01,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 14:11:01,760 INFO L85 PathProgramCache]: Analyzing trace with hash 2114513440, now seen corresponding path program 1 times [2022-01-19 14:11:01,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 14:11:01,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015519838] [2022-01-19 14:11:01,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 14:11:01,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 14:11:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 14:11:02,115 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 14:11:02,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 14:11:02,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015519838] [2022-01-19 14:11:02,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015519838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 14:11:02,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 14:11:02,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 14:11:02,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905779530] [2022-01-19 14:11:02,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 14:11:02,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 14:11:02,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 14:11:02,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 14:11:02,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-19 14:11:02,120 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 195 [2022-01-19 14:11:02,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 162 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 0 states have call successors, (0), 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 14:11:02,121 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 14:11:02,121 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 195 [2022-01-19 14:11:02,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 14:11:03,667 INFO L129 PetriNetUnfolder]: 8050/15230 cut-off events. [2022-01-19 14:11:03,668 INFO L130 PetriNetUnfolder]: For 246/246 co-relation queries the response was YES. [2022-01-19 14:11:03,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26981 conditions, 15230 events. 8050/15230 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 905. Compared 135615 event pairs, 4677 based on Foata normal form. 0/12261 useless extension candidates. Maximal degree in co-relation 26978. Up to 6422 conditions per place. [2022-01-19 14:11:03,762 INFO L132 encePairwiseOnDemand]: 189/195 looper letters, 60 selfloop transitions, 5 changer transitions 0/181 dead transitions. [2022-01-19 14:11:03,762 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 181 transitions, 506 flow [2022-01-19 14:11:03,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 14:11:03,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 14:11:03,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 876 transitions. [2022-01-19 14:11:03,765 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7487179487179487 [2022-01-19 14:11:03,765 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 876 transitions. [2022-01-19 14:11:03,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 876 transitions. [2022-01-19 14:11:03,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 14:11:03,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 876 transitions. [2022-01-19 14:11:03,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 14:11:03,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 0 states have call successors, (0), 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 14:11:03,770 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 0 states have call successors, (0), 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 14:11:03,770 INFO L186 Difference]: Start difference. First operand has 168 places, 162 transitions, 334 flow. Second operand 6 states and 876 transitions. [2022-01-19 14:11:03,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 181 transitions, 506 flow [2022-01-19 14:11:03,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 181 transitions, 506 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 14:11:03,773 INFO L242 Difference]: Finished difference. Result has 170 places, 163 transitions, 352 flow [2022-01-19 14:11:03,773 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=352, PETRI_PLACES=170, PETRI_TRANSITIONS=163} [2022-01-19 14:11:03,774 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, -7 predicate places. [2022-01-19 14:11:03,774 INFO L470 AbstractCegarLoop]: Abstraction has has 170 places, 163 transitions, 352 flow [2022-01-19 14:11:03,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 0 states have call successors, (0), 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 14:11:03,775 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 14:11:03,775 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 14:11:03,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 14:11:03,775 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 14:11:03,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 14:11:03,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1927208558, now seen corresponding path program 1 times [2022-01-19 14:11:03,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 14:11:03,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806439800] [2022-01-19 14:11:03,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 14:11:03,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 14:11:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 14:11:03,872 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 14:11:03,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 14:11:03,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806439800] [2022-01-19 14:11:03,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806439800] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 14:11:03,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 14:11:03,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 14:11:03,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102396626] [2022-01-19 14:11:03,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 14:11:03,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 14:11:03,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 14:11:03,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 14:11:03,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 14:11:03,875 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 195 [2022-01-19 14:11:03,876 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 163 transitions, 352 flow. Second operand has 7 states, 7 states have (on average 147.57142857142858) internal successors, (1033), 7 states have internal predecessors, (1033), 0 states have call successors, (0), 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 14:11:03,876 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 14:11:03,876 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 195 [2022-01-19 14:11:03,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 14:11:05,455 INFO L129 PetriNetUnfolder]: 9579/16177 cut-off events. [2022-01-19 14:11:05,455 INFO L130 PetriNetUnfolder]: For 2270/2270 co-relation queries the response was YES. [2022-01-19 14:11:05,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31815 conditions, 16177 events. 9579/16177 cut-off events. For 2270/2270 co-relation queries the response was YES. Maximal size of possible extension queue 912. Compared 131503 event pairs, 7218 based on Foata normal form. 249/13682 useless extension candidates. Maximal degree in co-relation 31810. Up to 10634 conditions per place. [2022-01-19 14:11:05,561 INFO L132 encePairwiseOnDemand]: 186/195 looper letters, 41 selfloop transitions, 6 changer transitions 35/202 dead transitions. [2022-01-19 14:11:05,561 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 202 transitions, 608 flow [2022-01-19 14:11:05,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 14:11:05,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 14:11:05,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1226 transitions. [2022-01-19 14:11:05,563 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7858974358974359 [2022-01-19 14:11:05,563 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1226 transitions. [2022-01-19 14:11:05,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1226 transitions. [2022-01-19 14:11:05,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 14:11:05,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1226 transitions. [2022-01-19 14:11:05,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 153.25) internal successors, (1226), 8 states have internal predecessors, (1226), 0 states have call successors, (0), 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 14:11:05,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 195.0) internal successors, (1755), 9 states have internal predecessors, (1755), 0 states have call successors, (0), 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 14:11:05,569 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 195.0) internal successors, (1755), 9 states have internal predecessors, (1755), 0 states have call successors, (0), 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 14:11:05,569 INFO L186 Difference]: Start difference. First operand has 170 places, 163 transitions, 352 flow. Second operand 8 states and 1226 transitions. [2022-01-19 14:11:05,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 202 transitions, 608 flow [2022-01-19 14:11:05,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 202 transitions, 599 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 14:11:05,572 INFO L242 Difference]: Finished difference. Result has 176 places, 164 transitions, 368 flow [2022-01-19 14:11:05,573 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=368, PETRI_PLACES=176, PETRI_TRANSITIONS=164} [2022-01-19 14:11:05,573 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, -1 predicate places. [2022-01-19 14:11:05,573 INFO L470 AbstractCegarLoop]: Abstraction has has 176 places, 164 transitions, 368 flow [2022-01-19 14:11:05,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 147.57142857142858) internal successors, (1033), 7 states have internal predecessors, (1033), 0 states have call successors, (0), 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 14:11:05,574 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 14:11:05,574 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 14:11:05,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 14:11:05,574 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 14:11:05,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 14:11:05,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1190333191, now seen corresponding path program 1 times [2022-01-19 14:11:05,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 14:11:05,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701438687] [2022-01-19 14:11:05,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 14:11:05,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 14:11:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 14:11:05,654 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 14:11:05,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 14:11:05,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701438687] [2022-01-19 14:11:05,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701438687] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 14:11:05,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111200940] [2022-01-19 14:11:05,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 14:11:05,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 14:11:05,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 14:11:05,663 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 14:11:05,666 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 14:11:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 14:11:05,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 14:11:05,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 14:11:06,369 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 14:11:06,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 14:11:06,642 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 14:11:06,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111200940] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 14:11:06,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 14:11:06,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-01-19 14:11:06,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129668315] [2022-01-19 14:11:06,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 14:11:06,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 14:11:06,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 14:11:06,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 14:11:06,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-19 14:11:06,647 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 195 [2022-01-19 14:11:06,648 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 164 transitions, 368 flow. Second operand has 7 states, 7 states have (on average 147.85714285714286) internal successors, (1035), 7 states have internal predecessors, (1035), 0 states have call successors, (0), 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 14:11:06,648 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 14:11:06,648 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 195 [2022-01-19 14:11:06,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 14:11:08,133 INFO L129 PetriNetUnfolder]: 7859/14138 cut-off events. [2022-01-19 14:11:08,134 INFO L130 PetriNetUnfolder]: For 1317/1688 co-relation queries the response was YES. [2022-01-19 14:11:08,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26955 conditions, 14138 events. 7859/14138 cut-off events. For 1317/1688 co-relation queries the response was YES. Maximal size of possible extension queue 838. Compared 118609 event pairs, 5749 based on Foata normal form. 371/12184 useless extension candidates. Maximal degree in co-relation 26947. Up to 4982 conditions per place. [2022-01-19 14:11:08,223 INFO L132 encePairwiseOnDemand]: 187/195 looper letters, 52 selfloop transitions, 7 changer transitions 0/180 dead transitions. [2022-01-19 14:11:08,224 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 180 transitions, 526 flow [2022-01-19 14:11:08,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 14:11:08,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 14:11:08,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1060 transitions. [2022-01-19 14:11:08,226 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7765567765567766 [2022-01-19 14:11:08,226 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1060 transitions. [2022-01-19 14:11:08,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1060 transitions. [2022-01-19 14:11:08,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 14:11:08,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1060 transitions. [2022-01-19 14:11:08,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 151.42857142857142) internal successors, (1060), 7 states have internal predecessors, (1060), 0 states have call successors, (0), 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 14:11:08,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 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 14:11:08,230 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 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 14:11:08,230 INFO L186 Difference]: Start difference. First operand has 176 places, 164 transitions, 368 flow. Second operand 7 states and 1060 transitions. [2022-01-19 14:11:08,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 180 transitions, 526 flow [2022-01-19 14:11:08,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 180 transitions, 510 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-01-19 14:11:08,235 INFO L242 Difference]: Finished difference. Result has 177 places, 166 transitions, 387 flow [2022-01-19 14:11:08,235 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=387, PETRI_PLACES=177, PETRI_TRANSITIONS=166} [2022-01-19 14:11:08,236 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 0 predicate places. [2022-01-19 14:11:08,236 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 166 transitions, 387 flow [2022-01-19 14:11:08,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 147.85714285714286) internal successors, (1035), 7 states have internal predecessors, (1035), 0 states have call successors, (0), 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 14:11:08,236 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 14:11:08,236 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, 1, 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 14:11:08,258 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 14:11:08,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 14:11:08,452 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 14:11:08,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 14:11:08,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2134086853, now seen corresponding path program 1 times [2022-01-19 14:11:08,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 14:11:08,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958446647] [2022-01-19 14:11:08,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 14:11:08,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 14:11:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 14:11:08,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 14:11:08,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 14:11:08,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958446647] [2022-01-19 14:11:08,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958446647] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 14:11:08,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634518396] [2022-01-19 14:11:08,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 14:11:08,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 14:11:08,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 14:11:08,949 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 14:11:08,956 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 14:11:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 14:11:09,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 14:11:09,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 14:11:09,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 14:11:09,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 14:11:10,066 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 14:11:10,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634518396] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 14:11:10,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 14:11:10,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-01-19 14:11:10,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198227874] [2022-01-19 14:11:10,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 14:11:10,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 14:11:10,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 14:11:10,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 14:11:10,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-19 14:11:10,069 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 195 [2022-01-19 14:11:10,070 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 166 transitions, 387 flow. Second operand has 7 states, 7 states have (on average 148.14285714285714) internal successors, (1037), 7 states have internal predecessors, (1037), 0 states have call successors, (0), 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 14:11:10,070 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 14:11:10,070 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 195 [2022-01-19 14:11:10,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 14:11:11,187 INFO L129 PetriNetUnfolder]: 8398/12890 cut-off events. [2022-01-19 14:11:11,187 INFO L130 PetriNetUnfolder]: For 2831/4488 co-relation queries the response was YES. [2022-01-19 14:11:11,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27295 conditions, 12890 events. 8398/12890 cut-off events. For 2831/4488 co-relation queries the response was YES. Maximal size of possible extension queue 712. Compared 89345 event pairs, 3115 based on Foata normal form. 1657/12787 useless extension candidates. Maximal degree in co-relation 27286. Up to 5611 conditions per place. [2022-01-19 14:11:11,259 INFO L132 encePairwiseOnDemand]: 187/195 looper letters, 54 selfloop transitions, 7 changer transitions 0/182 dead transitions. [2022-01-19 14:11:11,259 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 182 transitions, 555 flow [2022-01-19 14:11:11,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 14:11:11,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 14:11:11,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1060 transitions. [2022-01-19 14:11:11,262 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7765567765567766 [2022-01-19 14:11:11,262 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1060 transitions. [2022-01-19 14:11:11,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1060 transitions. [2022-01-19 14:11:11,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 14:11:11,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1060 transitions. [2022-01-19 14:11:11,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 151.42857142857142) internal successors, (1060), 7 states have internal predecessors, (1060), 0 states have call successors, (0), 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 14:11:11,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 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 14:11:11,266 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 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 14:11:11,266 INFO L186 Difference]: Start difference. First operand has 177 places, 166 transitions, 387 flow. Second operand 7 states and 1060 transitions. [2022-01-19 14:11:11,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 182 transitions, 555 flow [2022-01-19 14:11:11,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 182 transitions, 546 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 14:11:11,270 INFO L242 Difference]: Finished difference. Result has 181 places, 167 transitions, 406 flow [2022-01-19 14:11:11,270 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=406, PETRI_PLACES=181, PETRI_TRANSITIONS=167} [2022-01-19 14:11:11,272 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 4 predicate places. [2022-01-19 14:11:11,272 INFO L470 AbstractCegarLoop]: Abstraction has has 181 places, 167 transitions, 406 flow [2022-01-19 14:11:11,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 148.14285714285714) internal successors, (1037), 7 states have internal predecessors, (1037), 0 states have call successors, (0), 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 14:11:11,273 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 14:11:11,273 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, 1, 1, 1, 1, 1, 1, 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 14:11:11,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-19 14:11:11,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 14:11:11,488 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 14:11:11,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 14:11:11,488 INFO L85 PathProgramCache]: Analyzing trace with hash 308230845, now seen corresponding path program 1 times [2022-01-19 14:11:11,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 14:11:11,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905272733] [2022-01-19 14:11:11,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 14:11:11,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 14:11:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 14:11:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 14:11:11,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 14:11:11,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905272733] [2022-01-19 14:11:11,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905272733] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 14:11:11,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837381626] [2022-01-19 14:11:11,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 14:11:11,591 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 14:11:11,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 14:11:11,592 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 14:11:11,595 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 14:11:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 14:11:11,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 14:11:11,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 14:11:11,929 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 14:11:11,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 14:11:12,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 14:11:12,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837381626] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 14:11:12,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 14:11:12,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6, 7] total 14 [2022-01-19 14:11:12,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165788104] [2022-01-19 14:11:12,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 14:11:12,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 14:11:12,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 14:11:12,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 14:11:12,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-01-19 14:11:12,245 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 195 [2022-01-19 14:11:12,246 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 167 transitions, 406 flow. Second operand has 7 states, 7 states have (on average 148.42857142857142) internal successors, (1039), 7 states have internal predecessors, (1039), 0 states have call successors, (0), 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 14:11:12,246 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 14:11:12,246 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 195 [2022-01-19 14:11:12,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 14:11:13,547 INFO L129 PetriNetUnfolder]: 8242/16357 cut-off events. [2022-01-19 14:11:13,547 INFO L130 PetriNetUnfolder]: For 5462/8567 co-relation queries the response was YES. [2022-01-19 14:11:13,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32389 conditions, 16357 events. 8242/16357 cut-off events. For 5462/8567 co-relation queries the response was YES. Maximal size of possible extension queue 898. Compared 150366 event pairs, 3210 based on Foata normal form. 3105/18886 useless extension candidates. Maximal degree in co-relation 32378. Up to 6073 conditions per place. [2022-01-19 14:11:13,741 INFO L132 encePairwiseOnDemand]: 187/195 looper letters, 57 selfloop transitions, 7 changer transitions 0/185 dead transitions. [2022-01-19 14:11:13,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 185 transitions, 591 flow [2022-01-19 14:11:13,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 14:11:13,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 14:11:13,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1061 transitions. [2022-01-19 14:11:13,745 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7772893772893773 [2022-01-19 14:11:13,745 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1061 transitions. [2022-01-19 14:11:13,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1061 transitions. [2022-01-19 14:11:13,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 14:11:13,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1061 transitions. [2022-01-19 14:11:13,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 151.57142857142858) internal successors, (1061), 7 states have internal predecessors, (1061), 0 states have call successors, (0), 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 14:11:13,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 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 14:11:13,749 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 0 states have call successors, (0), 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 14:11:13,749 INFO L186 Difference]: Start difference. First operand has 181 places, 167 transitions, 406 flow. Second operand 7 states and 1061 transitions. [2022-01-19 14:11:13,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 185 transitions, 591 flow [2022-01-19 14:11:13,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 185 transitions, 580 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-01-19 14:11:13,753 INFO L242 Difference]: Finished difference. Result has 184 places, 168 transitions, 423 flow [2022-01-19 14:11:13,753 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=423, PETRI_PLACES=184, PETRI_TRANSITIONS=168} [2022-01-19 14:11:13,755 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 7 predicate places. [2022-01-19 14:11:13,755 INFO L470 AbstractCegarLoop]: Abstraction has has 184 places, 168 transitions, 423 flow [2022-01-19 14:11:13,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 148.42857142857142) internal successors, (1039), 7 states have internal predecessors, (1039), 0 states have call successors, (0), 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 14:11:13,756 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 14:11:13,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:11:13,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-19 14:11:13,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 14:11:13,994 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 14:11:13,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 14:11:13,995 INFO L85 PathProgramCache]: Analyzing trace with hash 25711741, now seen corresponding path program 1 times [2022-01-19 14:11:13,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 14:11:13,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19042466] [2022-01-19 14:11:13,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 14:11:13,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 14:11:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 14:11:14,259 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 14:11:14,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 14:11:14,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19042466] [2022-01-19 14:11:14,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19042466] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 14:11:14,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927891870] [2022-01-19 14:11:14,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 14:11:14,260 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 14:11:14,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 14:11:14,272 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 14:11:14,277 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 14:11:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 14:11:14,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 29 conjunts are in the unsatisfiable core [2022-01-19 14:11:14,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 14:11:14,724 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-19 14:11:14,827 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 14:11:14,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 14:11:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 14:11:15,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927891870] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 14:11:15,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 14:11:15,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9, 15] total 25 [2022-01-19 14:11:15,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105540356] [2022-01-19 14:11:15,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 14:11:15,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 14:11:15,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 14:11:15,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 14:11:15,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2022-01-19 14:11:15,288 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 195 [2022-01-19 14:11:15,289 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 168 transitions, 423 flow. Second operand has 10 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 0 states have call successors, (0), 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 14:11:15,289 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 14:11:15,289 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 195 [2022-01-19 14:11:15,289 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 14:11:23,341 INFO L129 PetriNetUnfolder]: 46191/82467 cut-off events. [2022-01-19 14:11:23,342 INFO L130 PetriNetUnfolder]: For 30933/30933 co-relation queries the response was YES. [2022-01-19 14:11:23,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172478 conditions, 82467 events. 46191/82467 cut-off events. For 30933/30933 co-relation queries the response was YES. Maximal size of possible extension queue 3422. Compared 829357 event pairs, 10421 based on Foata normal form. 2/79997 useless extension candidates. Maximal degree in co-relation 172465. Up to 17019 conditions per place. [2022-01-19 14:11:24,074 INFO L132 encePairwiseOnDemand]: 179/195 looper letters, 242 selfloop transitions, 37 changer transitions 27/411 dead transitions. [2022-01-19 14:11:24,075 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 411 transitions, 1757 flow [2022-01-19 14:11:24,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-19 14:11:24,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-01-19 14:11:24,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2092 transitions. [2022-01-19 14:11:24,078 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7152136752136752 [2022-01-19 14:11:24,078 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2092 transitions. [2022-01-19 14:11:24,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2092 transitions. [2022-01-19 14:11:24,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 14:11:24,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2092 transitions. [2022-01-19 14:11:24,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 139.46666666666667) internal successors, (2092), 15 states have internal predecessors, (2092), 0 states have call successors, (0), 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 14:11:24,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 195.0) internal successors, (3120), 16 states have internal predecessors, (3120), 0 states have call successors, (0), 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 14:11:24,086 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 195.0) internal successors, (3120), 16 states have internal predecessors, (3120), 0 states have call successors, (0), 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 14:11:24,086 INFO L186 Difference]: Start difference. First operand has 184 places, 168 transitions, 423 flow. Second operand 15 states and 2092 transitions. [2022-01-19 14:11:24,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 411 transitions, 1757 flow [2022-01-19 14:11:24,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 411 transitions, 1747 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-01-19 14:11:24,317 INFO L242 Difference]: Finished difference. Result has 207 places, 208 transitions, 713 flow [2022-01-19 14:11:24,318 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=713, PETRI_PLACES=207, PETRI_TRANSITIONS=208} [2022-01-19 14:11:24,318 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 30 predicate places. [2022-01-19 14:11:24,318 INFO L470 AbstractCegarLoop]: Abstraction has has 207 places, 208 transitions, 713 flow [2022-01-19 14:11:24,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 0 states have call successors, (0), 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 14:11:24,319 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 14:11:24,319 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:11:24,336 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 14:11:24,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 14:11:24,520 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 14:11:24,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 14:11:24,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1076309737, now seen corresponding path program 2 times [2022-01-19 14:11:24,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 14:11:24,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637573030] [2022-01-19 14:11:24,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 14:11:24,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 14:11:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 14:11:25,109 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 14:11:25,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 14:11:25,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637573030] [2022-01-19 14:11:25,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637573030] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 14:11:25,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299664854] [2022-01-19 14:11:25,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 14:11:25,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 14:11:25,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 14:11:25,123 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 14:11:25,127 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 14:11:25,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 14:11:25,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 14:11:25,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 37 conjunts are in the unsatisfiable core [2022-01-19 14:11:25,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 14:11:25,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 14:11:25,747 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-19 14:11:25,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 14:11:25,795 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-19 14:11:25,886 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-19 14:11:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 14:11:26,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 14:11:26,355 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_338 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_338) c_~A~0.base) c_~A~0.offset))) (or (<= c_~min~0 (+ .cse0 1)) (<= 2147483647 .cse0)))) is different from false [2022-01-19 14:11:26,405 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_337 (Array Int Int)) (v_ArrVal_338 (Array Int Int))) (let ((.cse0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_337) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_338) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (<= c_~min~0 (+ .cse0 1))))) is different from false [2022-01-19 14:11:26,493 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_337 (Array Int Int)) (v_ArrVal_338 (Array Int Int))) (let ((.cse0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_337) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_338) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (let ((.cse3 (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset (* c_thread1Thread1of1ForFork2_~i~0 4))))) (let ((.cse1 (< c_~min~0 .cse3)) (.cse2 (+ .cse0 1))) (and (or (not .cse1) (<= c_~min~0 .cse2)) (or .cse1 (<= .cse3 .cse2)))))))) is different from false [2022-01-19 14:11:26,539 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_337 (Array Int Int)) (v_ArrVal_338 (Array Int Int))) (let ((.cse0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_337) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_338) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (let ((.cse3 (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset))) (let ((.cse2 (+ .cse0 1)) (.cse1 (< c_~min~0 .cse3))) (and (or (not .cse1) (<= c_~min~0 .cse2)) (or (<= .cse3 .cse2) .cse1))))))) is different from false [2022-01-19 14:11:26,581 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 215 [2022-01-19 14:11:26,585 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 207 treesize of output 199 [2022-01-19 14:11:26,588 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 199 treesize of output 183 [2022-01-19 14:11:27,097 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-01-19 14:11:27,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299664854] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 14:11:27,097 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 14:11:27,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 20] total 48 [2022-01-19 14:11:27,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910725762] [2022-01-19 14:11:27,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 14:11:27,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-01-19 14:11:27,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 14:11:27,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-01-19 14:11:27,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1713, Unknown=4, NotChecked=348, Total=2256 [2022-01-19 14:11:27,102 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 195 [2022-01-19 14:11:27,104 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 208 transitions, 713 flow. Second operand has 48 states, 48 states have (on average 104.875) internal successors, (5034), 48 states have internal predecessors, (5034), 0 states have call successors, (0), 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 14:11:27,104 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 14:11:27,105 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 195 [2022-01-19 14:11:27,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 14:12:31,499 INFO L129 PetriNetUnfolder]: 251909/448627 cut-off events. [2022-01-19 14:12:31,499 INFO L130 PetriNetUnfolder]: For 789679/809008 co-relation queries the response was YES. [2022-01-19 14:12:36,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1324431 conditions, 448627 events. 251909/448627 cut-off events. For 789679/809008 co-relation queries the response was YES. Maximal size of possible extension queue 18960. Compared 5477548 event pairs, 26086 based on Foata normal form. 3528/445298 useless extension candidates. Maximal degree in co-relation 1324405. Up to 72744 conditions per place. [2022-01-19 14:12:38,867 INFO L132 encePairwiseOnDemand]: 170/195 looper letters, 1145 selfloop transitions, 413 changer transitions 67/1715 dead transitions. [2022-01-19 14:12:38,868 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 1715 transitions, 11124 flow [2022-01-19 14:12:38,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-01-19 14:12:38,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2022-01-19 14:12:38,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 8196 transitions. [2022-01-19 14:12:38,885 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6091415830546265 [2022-01-19 14:12:38,886 INFO L72 ComplementDD]: Start complementDD. Operand 69 states and 8196 transitions. [2022-01-19 14:12:38,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 8196 transitions. [2022-01-19 14:12:38,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 14:12:38,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 69 states and 8196 transitions. [2022-01-19 14:12:38,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 70 states, 69 states have (on average 118.78260869565217) internal successors, (8196), 69 states have internal predecessors, (8196), 0 states have call successors, (0), 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 14:12:38,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 70 states, 70 states have (on average 195.0) internal successors, (13650), 70 states have internal predecessors, (13650), 0 states have call successors, (0), 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 14:12:38,923 INFO L81 ComplementDD]: Finished complementDD. Result has 70 states, 70 states have (on average 195.0) internal successors, (13650), 70 states have internal predecessors, (13650), 0 states have call successors, (0), 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 14:12:38,924 INFO L186 Difference]: Start difference. First operand has 207 places, 208 transitions, 713 flow. Second operand 69 states and 8196 transitions. [2022-01-19 14:12:38,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 1715 transitions, 11124 flow [2022-01-19 14:12:54,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 1715 transitions, 10980 flow, removed 72 selfloop flow, removed 4 redundant places. [2022-01-19 14:12:54,267 INFO L242 Difference]: Finished difference. Result has 323 places, 627 transitions, 5306 flow [2022-01-19 14:12:54,267 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=69, PETRI_FLOW=5306, PETRI_PLACES=323, PETRI_TRANSITIONS=627} [2022-01-19 14:12:54,269 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 146 predicate places. [2022-01-19 14:12:54,269 INFO L470 AbstractCegarLoop]: Abstraction has has 323 places, 627 transitions, 5306 flow [2022-01-19 14:12:54,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 104.875) internal successors, (5034), 48 states have internal predecessors, (5034), 0 states have call successors, (0), 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 14:12:54,270 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 14:12:54,270 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:54,305 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 14:12:54,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 14:12:54,476 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 14:12:54,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 14:12:54,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1274396849, now seen corresponding path program 3 times [2022-01-19 14:12:54,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 14:12:54,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915571816] [2022-01-19 14:12:54,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 14:12:54,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 14:12:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 14:12:55,050 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 14:12:55,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 14:12:55,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915571816] [2022-01-19 14:12:55,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915571816] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 14:12:55,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460912089] [2022-01-19 14:12:55,051 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 14:12:55,051 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 14:12:55,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 14:12:55,052 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 14:12:55,053 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 14:12:55,218 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-19 14:12:55,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 14:12:55,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 36 conjunts are in the unsatisfiable core [2022-01-19 14:12:55,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 14:12:55,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 14:12:55,679 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-19 14:12:55,713 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-01-19 14:12:55,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 14:12:55,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 14:12:55,934 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_395 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t5~0#1.base| v_ArrVal_395) c_~A~0.base) (+ c_~A~0.offset (* c_thread2Thread1of1ForFork4_~i~1 4))))) (or (<= 2147483647 .cse0) (<= c_~min~0 (+ .cse0 1))))) is different from false [2022-01-19 14:12:55,956 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_395 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t5~0#1.base| v_ArrVal_395) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (<= c_~min~0 (+ .cse0 1))))) is different from false [2022-01-19 14:12:56,056 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_395 (Array Int Int))) (let ((.cse3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t5~0#1.base| v_ArrVal_395) c_~A~0.base) c_~A~0.offset))) (or (let ((.cse2 (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset (* c_thread1Thread1of1ForFork2_~i~0 4))))) (let ((.cse1 (< c_~min~0 .cse2)) (.cse0 (+ .cse3 1))) (and (or (<= c_~min~0 .cse0) (not .cse1)) (or .cse1 (<= .cse2 .cse0))))) (<= 2147483647 .cse3)))) is different from false [2022-01-19 14:12:56,092 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_395 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t5~0#1.base| v_ArrVal_395) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (let ((.cse3 (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset))) (let ((.cse2 (< c_~min~0 .cse3)) (.cse1 (+ .cse0 1))) (and (or (<= c_~min~0 .cse1) (not .cse2)) (or .cse2 (<= .cse3 .cse1)))))))) is different from false [2022-01-19 14:12:56,112 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-19 14:12:56,114 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-01-19 14:12:56,327 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 1 not checked. [2022-01-19 14:12:56,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460912089] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 14:12:56,328 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 14:12:56,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 16, 17] total 45 [2022-01-19 14:12:56,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778988887] [2022-01-19 14:12:56,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 14:12:56,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-01-19 14:12:56,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 14:12:56,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-01-19 14:12:56,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1531, Unknown=4, NotChecked=324, Total=1980 [2022-01-19 14:12:56,331 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 195 [2022-01-19 14:12:56,334 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 627 transitions, 5306 flow. Second operand has 45 states, 45 states have (on average 95.97777777777777) internal successors, (4319), 45 states have internal predecessors, (4319), 0 states have call successors, (0), 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 14:12:56,334 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 14:12:56,334 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 195 [2022-01-19 14:12:56,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand