/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 08:12:02,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 08:12:02,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 08:12:03,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 08:12:03,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 08:12:03,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 08:12:03,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 08:12:03,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 08:12:03,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 08:12:03,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 08:12:03,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 08:12:03,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 08:12:03,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 08:12:03,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 08:12:03,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 08:12:03,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 08:12:03,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 08:12:03,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 08:12:03,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 08:12:03,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 08:12:03,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 08:12:03,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 08:12:03,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 08:12:03,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 08:12:03,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 08:12:03,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 08:12:03,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 08:12:03,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 08:12:03,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 08:12:03,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 08:12:03,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 08:12:03,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 08:12:03,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 08:12:03,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 08:12:03,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 08:12:03,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 08:12:03,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 08:12:03,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 08:12:03,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 08:12:03,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 08:12:03,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 08:12:03,056 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-Before.epf [2022-01-19 08:12:03,086 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 08:12:03,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 08:12:03,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 08:12:03,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 08:12:03,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 08:12:03,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 08:12:03,089 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 08:12:03,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 08:12:03,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 08:12:03,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 08:12:03,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 08:12:03,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 08:12:03,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 08:12:03,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 08:12:03,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 08:12:03,091 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 08:12:03,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 08:12:03,091 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 08:12:03,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 08:12:03,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 08:12:03,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 08:12:03,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 08:12:03,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 08:12:03,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 08:12:03,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 08:12:03,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 08:12:03,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 08:12:03,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 08:12:03,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 08:12:03,093 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 08:12:03,093 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 08:12:03,093 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 08:12:03,093 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 08:12:03,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 08:12:03,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 08:12:03,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 08:12:03,334 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 08:12:03,335 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 08:12:03,336 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c [2022-01-19 08:12:03,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c8bdbf09/d1b141e7339a4f76b2dcb3274cb83e12/FLAG059f27e4f [2022-01-19 08:12:03,709 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 08:12:03,709 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c [2022-01-19 08:12:03,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c8bdbf09/d1b141e7339a4f76b2dcb3274cb83e12/FLAG059f27e4f [2022-01-19 08:12:04,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c8bdbf09/d1b141e7339a4f76b2dcb3274cb83e12 [2022-01-19 08:12:04,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 08:12:04,125 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 08:12:04,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 08:12:04,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 08:12:04,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 08:12:04,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 08:12:04" (1/1) ... [2022-01-19 08:12:04,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c59f34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:12:04, skipping insertion in model container [2022-01-19 08:12:04,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 08:12:04" (1/1) ... [2022-01-19 08:12:04,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 08:12:04,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 08:12:04,313 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.wvr.c[3018,3031] [2022-01-19 08:12:04,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 08:12:04,325 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 08:12:04,342 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.wvr.c[3018,3031] [2022-01-19 08:12:04,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 08:12:04,355 INFO L208 MainTranslator]: Completed translation [2022-01-19 08:12:04,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:12:04 WrapperNode [2022-01-19 08:12:04,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 08:12:04,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 08:12:04,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 08:12:04,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 08:12:04,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:12:04" (1/1) ... [2022-01-19 08:12:04,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:12:04" (1/1) ... [2022-01-19 08:12:04,387 INFO L137 Inliner]: procedures = 26, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 137 [2022-01-19 08:12:04,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 08:12:04,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 08:12:04,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 08:12:04,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 08:12:04,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:12:04" (1/1) ... [2022-01-19 08:12:04,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:12:04" (1/1) ... [2022-01-19 08:12:04,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:12:04" (1/1) ... [2022-01-19 08:12:04,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:12:04" (1/1) ... [2022-01-19 08:12:04,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:12:04" (1/1) ... [2022-01-19 08:12:04,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:12:04" (1/1) ... [2022-01-19 08:12:04,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:12:04" (1/1) ... [2022-01-19 08:12:04,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 08:12:04,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 08:12:04,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 08:12:04,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 08:12:04,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:12:04" (1/1) ... [2022-01-19 08:12:04,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 08:12:04,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:12:04,451 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 08:12:04,456 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 08:12:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 08:12:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 08:12:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 08:12:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 08:12:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 08:12:04,481 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 08:12:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 08:12:04,482 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 08:12:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 08:12:04,483 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 08:12:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-19 08:12:04,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-19 08:12:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 08:12:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 08:12:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 08:12:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-19 08:12:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 08:12:04,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 08:12:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 08:12:04,487 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 08:12:04,553 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 08:12:04,554 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 08:12:04,842 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 08:12:04,917 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 08:12:04,917 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-19 08:12:04,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 08:12:04 BoogieIcfgContainer [2022-01-19 08:12:04,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 08:12:04,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 08:12:04,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 08:12:04,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 08:12:04,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 08:12:04" (1/3) ... [2022-01-19 08:12:04,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563d6128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 08:12:04, skipping insertion in model container [2022-01-19 08:12:04,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:12:04" (2/3) ... [2022-01-19 08:12:04,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563d6128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 08:12:04, skipping insertion in model container [2022-01-19 08:12:04,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 08:12:04" (3/3) ... [2022-01-19 08:12:04,926 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc.wvr.c [2022-01-19 08:12:04,930 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 08:12:04,930 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 08:12:04,930 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 08:12:04,967 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,967 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,968 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,968 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,968 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,968 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,968 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,969 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,969 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,969 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,969 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,969 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,969 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,970 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,970 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,970 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,970 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,970 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,971 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,971 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,971 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,971 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,972 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,972 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,972 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,972 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,973 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,973 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,973 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,974 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,974 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,974 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,974 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,974 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,975 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,975 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,975 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,975 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,975 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,975 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,975 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,976 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,976 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,976 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,976 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,976 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,976 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,977 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,977 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,978 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,978 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,979 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,979 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,979 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,979 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,979 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,980 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,980 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,980 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,980 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,980 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,980 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,980 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,981 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,981 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,981 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,981 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,981 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,981 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,982 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,982 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,982 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,982 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,982 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,982 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,983 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,983 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,983 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,983 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,983 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,983 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,984 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,984 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,984 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,985 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,985 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,985 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,988 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,988 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,988 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,988 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,988 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,989 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,990 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,990 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,990 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,992 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,992 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,992 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,992 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,992 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,992 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,992 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,993 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:04,993 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:12:05,001 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-19 08:12:05,041 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 08:12:05,047 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 08:12:05,047 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-19 08:12:05,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 173 places, 172 transitions, 376 flow [2022-01-19 08:12:05,116 INFO L129 PetriNetUnfolder]: 12/168 cut-off events. [2022-01-19 08:12:05,117 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-01-19 08:12:05,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 168 events. 12/168 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 115 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 134. Up to 2 conditions per place. [2022-01-19 08:12:05,122 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 172 transitions, 376 flow [2022-01-19 08:12:05,127 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 155 transitions, 334 flow [2022-01-19 08:12:05,159 INFO L129 PetriNetUnfolder]: 12/154 cut-off events. [2022-01-19 08:12:05,159 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-01-19 08:12:05,159 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:12:05,160 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] [2022-01-19 08:12:05,160 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:12:05,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:12:05,165 INFO L85 PathProgramCache]: Analyzing trace with hash 704747562, now seen corresponding path program 1 times [2022-01-19 08:12:05,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:12:05,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326569980] [2022-01-19 08:12:05,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:12:05,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:12:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:12:05,372 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 08:12:05,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:12:05,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326569980] [2022-01-19 08:12:05,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326569980] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:12:05,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:12:05,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 08:12:05,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967016832] [2022-01-19 08:12:05,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:12:05,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 08:12:05,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:12:05,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 08:12:05,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 08:12:05,420 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 172 [2022-01-19 08:12:05,427 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 155 transitions, 334 flow. Second operand has 2 states, 2 states have (on average 156.0) internal successors, (312), 2 states have internal predecessors, (312), 0 states have call successors, (0), 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 08:12:05,427 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:12:05,427 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 172 [2022-01-19 08:12:05,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:12:05,597 INFO L129 PetriNetUnfolder]: 105/512 cut-off events. [2022-01-19 08:12:05,598 INFO L130 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2022-01-19 08:12:05,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 512 events. 105/512 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2320 event pairs, 71 based on Foata normal form. 67/516 useless extension candidates. Maximal degree in co-relation 583. Up to 144 conditions per place. [2022-01-19 08:12:05,608 INFO L132 encePairwiseOnDemand]: 164/172 looper letters, 13 selfloop transitions, 0 changer transitions 4/147 dead transitions. [2022-01-19 08:12:05,608 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 147 transitions, 344 flow [2022-01-19 08:12:05,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 08:12:05,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 08:12:05,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 321 transitions. [2022-01-19 08:12:05,620 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9331395348837209 [2022-01-19 08:12:05,621 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 321 transitions. [2022-01-19 08:12:05,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 321 transitions. [2022-01-19 08:12:05,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:12:05,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 321 transitions. [2022-01-19 08:12:05,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 160.5) internal successors, (321), 2 states have internal predecessors, (321), 0 states have call successors, (0), 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 08:12:05,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:12:05,634 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:12:05,636 INFO L186 Difference]: Start difference. First operand has 156 places, 155 transitions, 334 flow. Second operand 2 states and 321 transitions. [2022-01-19 08:12:05,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 147 transitions, 344 flow [2022-01-19 08:12:05,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 147 transitions, 328 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-01-19 08:12:05,643 INFO L242 Difference]: Finished difference. Result has 149 places, 143 transitions, 294 flow [2022-01-19 08:12:05,645 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=294, PETRI_PLACES=149, PETRI_TRANSITIONS=143} [2022-01-19 08:12:05,648 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, -7 predicate places. [2022-01-19 08:12:05,648 INFO L470 AbstractCegarLoop]: Abstraction has has 149 places, 143 transitions, 294 flow [2022-01-19 08:12:05,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 156.0) internal successors, (312), 2 states have internal predecessors, (312), 0 states have call successors, (0), 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 08:12:05,649 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:12:05,649 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] [2022-01-19 08:12:05,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 08:12:05,650 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:12:05,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:12:05,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1218906496, now seen corresponding path program 1 times [2022-01-19 08:12:05,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:12:05,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722340770] [2022-01-19 08:12:05,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:12:05,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:12:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:12:05,941 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 08:12:05,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:12:05,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722340770] [2022-01-19 08:12:05,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722340770] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:12:05,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:12:05,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 08:12:05,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764583930] [2022-01-19 08:12:05,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:12:05,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 08:12:05,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:12:05,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 08:12:05,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-19 08:12:05,946 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 172 [2022-01-19 08:12:05,947 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 143 transitions, 294 flow. Second operand has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 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 08:12:05,947 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:12:05,947 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 172 [2022-01-19 08:12:05,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:12:06,381 INFO L129 PetriNetUnfolder]: 1341/2498 cut-off events. [2022-01-19 08:12:06,382 INFO L130 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-01-19 08:12:06,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4652 conditions, 2498 events. 1341/2498 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 16307 event pairs, 633 based on Foata normal form. 0/2025 useless extension candidates. Maximal degree in co-relation 4649. Up to 1227 conditions per place. [2022-01-19 08:12:06,405 INFO L132 encePairwiseOnDemand]: 166/172 looper letters, 50 selfloop transitions, 5 changer transitions 0/157 dead transitions. [2022-01-19 08:12:06,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 157 transitions, 435 flow [2022-01-19 08:12:06,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 08:12:06,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 08:12:06,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 764 transitions. [2022-01-19 08:12:06,412 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7403100775193798 [2022-01-19 08:12:06,413 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 764 transitions. [2022-01-19 08:12:06,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 764 transitions. [2022-01-19 08:12:06,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:12:06,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 764 transitions. [2022-01-19 08:12:06,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.33333333333333) internal successors, (764), 6 states have internal predecessors, (764), 0 states have call successors, (0), 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 08:12:06,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:12:06,422 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:12:06,422 INFO L186 Difference]: Start difference. First operand has 149 places, 143 transitions, 294 flow. Second operand 6 states and 764 transitions. [2022-01-19 08:12:06,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 157 transitions, 435 flow [2022-01-19 08:12:06,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 157 transitions, 435 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 08:12:06,430 INFO L242 Difference]: Finished difference. Result has 151 places, 144 transitions, 312 flow [2022-01-19 08:12:06,430 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=151, PETRI_TRANSITIONS=144} [2022-01-19 08:12:06,431 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, -5 predicate places. [2022-01-19 08:12:06,431 INFO L470 AbstractCegarLoop]: Abstraction has has 151 places, 144 transitions, 312 flow [2022-01-19 08:12:06,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 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 08:12:06,431 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:12:06,432 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] [2022-01-19 08:12:06,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 08:12:06,432 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:12:06,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:12:06,435 INFO L85 PathProgramCache]: Analyzing trace with hash -474365761, now seen corresponding path program 1 times [2022-01-19 08:12:06,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:12:06,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320305148] [2022-01-19 08:12:06,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:12:06,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:12:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:12:06,615 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 08:12:06,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:12:06,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320305148] [2022-01-19 08:12:06,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320305148] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:12:06,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:12:06,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 08:12:06,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103947343] [2022-01-19 08:12:06,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:12:06,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 08:12:06,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:12:06,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 08:12:06,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 08:12:06,620 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 172 [2022-01-19 08:12:06,621 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 144 transitions, 312 flow. Second operand has 7 states, 7 states have (on average 130.14285714285714) internal successors, (911), 7 states have internal predecessors, (911), 0 states have call successors, (0), 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 08:12:06,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:12:06,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 172 [2022-01-19 08:12:06,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:12:07,125 INFO L129 PetriNetUnfolder]: 1707/3469 cut-off events. [2022-01-19 08:12:07,125 INFO L130 PetriNetUnfolder]: For 414/414 co-relation queries the response was YES. [2022-01-19 08:12:07,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6473 conditions, 3469 events. 1707/3469 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 24812 event pairs, 1140 based on Foata normal form. 46/2928 useless extension candidates. Maximal degree in co-relation 6468. Up to 1917 conditions per place. [2022-01-19 08:12:07,149 INFO L132 encePairwiseOnDemand]: 163/172 looper letters, 36 selfloop transitions, 6 changer transitions 24/172 dead transitions. [2022-01-19 08:12:07,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 172 transitions, 510 flow [2022-01-19 08:12:07,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 08:12:07,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 08:12:07,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1074 transitions. [2022-01-19 08:12:07,152 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7805232558139535 [2022-01-19 08:12:07,153 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1074 transitions. [2022-01-19 08:12:07,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1074 transitions. [2022-01-19 08:12:07,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:12:07,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1074 transitions. [2022-01-19 08:12:07,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 134.25) internal successors, (1074), 8 states have internal predecessors, (1074), 0 states have call successors, (0), 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 08:12:07,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 172.0) internal successors, (1548), 9 states have internal predecessors, (1548), 0 states have call successors, (0), 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 08:12:07,161 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 172.0) internal successors, (1548), 9 states have internal predecessors, (1548), 0 states have call successors, (0), 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 08:12:07,161 INFO L186 Difference]: Start difference. First operand has 151 places, 144 transitions, 312 flow. Second operand 8 states and 1074 transitions. [2022-01-19 08:12:07,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 172 transitions, 510 flow [2022-01-19 08:12:07,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 172 transitions, 501 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 08:12:07,169 INFO L242 Difference]: Finished difference. Result has 157 places, 145 transitions, 328 flow [2022-01-19 08:12:07,170 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=328, PETRI_PLACES=157, PETRI_TRANSITIONS=145} [2022-01-19 08:12:07,172 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, 1 predicate places. [2022-01-19 08:12:07,172 INFO L470 AbstractCegarLoop]: Abstraction has has 157 places, 145 transitions, 328 flow [2022-01-19 08:12:07,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 130.14285714285714) internal successors, (911), 7 states have internal predecessors, (911), 0 states have call successors, (0), 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 08:12:07,173 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:12:07,173 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] [2022-01-19 08:12:07,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 08:12:07,173 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:12:07,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:12:07,175 INFO L85 PathProgramCache]: Analyzing trace with hash 744951810, now seen corresponding path program 1 times [2022-01-19 08:12:07,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:12:07,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359855771] [2022-01-19 08:12:07,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:12:07,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:12:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:12:07,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:12:07,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:12:07,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359855771] [2022-01-19 08:12:07,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359855771] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:12:07,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473479582] [2022-01-19 08:12:07,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:12:07,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:12:07,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:12:07,338 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 08:12:07,362 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 08:12:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:12:07,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 08:12:07,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:12:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:12:07,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:12:08,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:12:08,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473479582] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 08:12:08,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 08:12:08,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-01-19 08:12:08,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004396195] [2022-01-19 08:12:08,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:12:08,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 08:12:08,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:12:08,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 08:12:08,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-19 08:12:08,104 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 172 [2022-01-19 08:12:08,106 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 145 transitions, 328 flow. Second operand has 7 states, 7 states have (on average 130.42857142857142) internal successors, (913), 7 states have internal predecessors, (913), 0 states have call successors, (0), 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 08:12:08,106 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:12:08,106 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 172 [2022-01-19 08:12:08,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:12:08,468 INFO L129 PetriNetUnfolder]: 1362/2463 cut-off events. [2022-01-19 08:12:08,469 INFO L130 PetriNetUnfolder]: For 270/331 co-relation queries the response was YES. [2022-01-19 08:12:08,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4933 conditions, 2463 events. 1362/2463 cut-off events. For 270/331 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 15598 event pairs, 495 based on Foata normal form. 61/2136 useless extension candidates. Maximal degree in co-relation 4925. Up to 1007 conditions per place. [2022-01-19 08:12:08,487 INFO L132 encePairwiseOnDemand]: 164/172 looper letters, 43 selfloop transitions, 7 changer transitions 0/157 dead transitions. [2022-01-19 08:12:08,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 157 transitions, 459 flow [2022-01-19 08:12:08,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 08:12:08,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 08:12:08,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 932 transitions. [2022-01-19 08:12:08,490 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7740863787375415 [2022-01-19 08:12:08,490 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 932 transitions. [2022-01-19 08:12:08,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 932 transitions. [2022-01-19 08:12:08,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:12:08,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 932 transitions. [2022-01-19 08:12:08,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 133.14285714285714) internal successors, (932), 7 states have internal predecessors, (932), 0 states have call successors, (0), 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 08:12:08,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 172.0) internal successors, (1376), 8 states have internal predecessors, (1376), 0 states have call successors, (0), 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 08:12:08,495 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 172.0) internal successors, (1376), 8 states have internal predecessors, (1376), 0 states have call successors, (0), 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 08:12:08,495 INFO L186 Difference]: Start difference. First operand has 157 places, 145 transitions, 328 flow. Second operand 7 states and 932 transitions. [2022-01-19 08:12:08,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 157 transitions, 459 flow [2022-01-19 08:12:08,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 157 transitions, 443 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-01-19 08:12:08,499 INFO L242 Difference]: Finished difference. Result has 158 places, 147 transitions, 347 flow [2022-01-19 08:12:08,500 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=347, PETRI_PLACES=158, PETRI_TRANSITIONS=147} [2022-01-19 08:12:08,500 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, 2 predicate places. [2022-01-19 08:12:08,500 INFO L470 AbstractCegarLoop]: Abstraction has has 158 places, 147 transitions, 347 flow [2022-01-19 08:12:08,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 130.42857142857142) internal successors, (913), 7 states have internal predecessors, (913), 0 states have call successors, (0), 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 08:12:08,501 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:12:08,501 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] [2022-01-19 08:12:08,527 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 08:12:08,715 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 08:12:08,715 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:12:08,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:12:08,716 INFO L85 PathProgramCache]: Analyzing trace with hash 169688933, now seen corresponding path program 1 times [2022-01-19 08:12:08,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:12:08,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974802146] [2022-01-19 08:12:08,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:12:08,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:12:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:12:08,840 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 08:12:08,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:12:08,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974802146] [2022-01-19 08:12:08,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974802146] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:12:08,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357413619] [2022-01-19 08:12:08,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:12:08,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:12:08,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:12:08,843 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 08:12:08,857 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 08:12:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:12:08,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 08:12:08,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:12:09,197 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 08:12:09,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:12:09,483 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 08:12:09,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357413619] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 08:12:09,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 08:12:09,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-01-19 08:12:09,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013467927] [2022-01-19 08:12:09,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:12:09,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 08:12:09,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:12:09,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 08:12:09,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-19 08:12:09,487 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 172 [2022-01-19 08:12:09,488 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 147 transitions, 347 flow. Second operand has 7 states, 7 states have (on average 130.71428571428572) internal successors, (915), 7 states have internal predecessors, (915), 0 states have call successors, (0), 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 08:12:09,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:12:09,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 172 [2022-01-19 08:12:09,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:12:09,777 INFO L129 PetriNetUnfolder]: 1309/2408 cut-off events. [2022-01-19 08:12:09,777 INFO L130 PetriNetUnfolder]: For 696/973 co-relation queries the response was YES. [2022-01-19 08:12:09,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5238 conditions, 2408 events. 1309/2408 cut-off events. For 696/973 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 15209 event pairs, 472 based on Foata normal form. 277/2523 useless extension candidates. Maximal degree in co-relation 5229. Up to 1084 conditions per place. [2022-01-19 08:12:09,799 INFO L132 encePairwiseOnDemand]: 164/172 looper letters, 46 selfloop transitions, 7 changer transitions 0/160 dead transitions. [2022-01-19 08:12:09,799 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 160 transitions, 492 flow [2022-01-19 08:12:09,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 08:12:09,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 08:12:09,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 933 transitions. [2022-01-19 08:12:09,802 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7749169435215947 [2022-01-19 08:12:09,802 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 933 transitions. [2022-01-19 08:12:09,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 933 transitions. [2022-01-19 08:12:09,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:12:09,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 933 transitions. [2022-01-19 08:12:09,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 133.28571428571428) internal successors, (933), 7 states have internal predecessors, (933), 0 states have call successors, (0), 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 08:12:09,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 172.0) internal successors, (1376), 8 states have internal predecessors, (1376), 0 states have call successors, (0), 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 08:12:09,806 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 172.0) internal successors, (1376), 8 states have internal predecessors, (1376), 0 states have call successors, (0), 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 08:12:09,806 INFO L186 Difference]: Start difference. First operand has 158 places, 147 transitions, 347 flow. Second operand 7 states and 933 transitions. [2022-01-19 08:12:09,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 160 transitions, 492 flow [2022-01-19 08:12:09,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 160 transitions, 483 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 08:12:09,813 INFO L242 Difference]: Finished difference. Result has 162 places, 148 transitions, 366 flow [2022-01-19 08:12:09,813 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=366, PETRI_PLACES=162, PETRI_TRANSITIONS=148} [2022-01-19 08:12:09,815 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, 6 predicate places. [2022-01-19 08:12:09,815 INFO L470 AbstractCegarLoop]: Abstraction has has 162 places, 148 transitions, 366 flow [2022-01-19 08:12:09,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 130.71428571428572) internal successors, (915), 7 states have internal predecessors, (915), 0 states have call successors, (0), 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 08:12:09,816 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:12:09,816 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] [2022-01-19 08:12:09,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-19 08:12:10,039 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 08:12:10,040 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:12:10,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:12:10,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1362204798, now seen corresponding path program 1 times [2022-01-19 08:12:10,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:12:10,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175567191] [2022-01-19 08:12:10,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:12:10,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:12:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:12:10,356 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:12:10,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:12:10,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175567191] [2022-01-19 08:12:10,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175567191] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:12:10,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999382146] [2022-01-19 08:12:10,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:12:10,357 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:12:10,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:12:10,359 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 08:12:10,398 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 08:12:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:12:10,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 41 conjunts are in the unsatisfiable core [2022-01-19 08:12:10,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:12:10,985 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 08:12:11,178 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 08:12:11,260 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 08:12:11,310 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 08:12:11,350 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 08:12:11,576 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 08:12:11,658 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:12:11,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:12:12,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:12:12,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999382146] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 08:12:12,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 08:12:12,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [16, 22] total 39 [2022-01-19 08:12:12,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026255490] [2022-01-19 08:12:12,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:12:12,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 08:12:12,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:12:12,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 08:12:12,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1336, Unknown=0, NotChecked=0, Total=1482 [2022-01-19 08:12:12,349 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 172 [2022-01-19 08:12:12,350 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 148 transitions, 366 flow. Second operand has 10 states, 10 states have (on average 113.1) internal successors, (1131), 10 states have internal predecessors, (1131), 0 states have call successors, (0), 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 08:12:12,350 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:12:12,350 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 172 [2022-01-19 08:12:12,350 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:12:13,919 INFO L129 PetriNetUnfolder]: 4383/9346 cut-off events. [2022-01-19 08:12:13,919 INFO L130 PetriNetUnfolder]: For 2157/2157 co-relation queries the response was YES. [2022-01-19 08:12:13,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18065 conditions, 9346 events. 4383/9346 cut-off events. For 2157/2157 co-relation queries the response was YES. Maximal size of possible extension queue 495. Compared 83907 event pairs, 758 based on Foata normal form. 2/9083 useless extension candidates. Maximal degree in co-relation 18054. Up to 1695 conditions per place. [2022-01-19 08:12:14,007 INFO L132 encePairwiseOnDemand]: 161/172 looper letters, 148 selfloop transitions, 13 changer transitions 18/275 dead transitions. [2022-01-19 08:12:14,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 275 transitions, 1074 flow [2022-01-19 08:12:14,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 08:12:14,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 08:12:14,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1471 transitions. [2022-01-19 08:12:14,012 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7126937984496124 [2022-01-19 08:12:14,012 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1471 transitions. [2022-01-19 08:12:14,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1471 transitions. [2022-01-19 08:12:14,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:12:14,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1471 transitions. [2022-01-19 08:12:14,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 122.58333333333333) internal successors, (1471), 12 states have internal predecessors, (1471), 0 states have call successors, (0), 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 08:12:14,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 172.0) internal successors, (2236), 13 states have internal predecessors, (2236), 0 states have call successors, (0), 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 08:12:14,019 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 172.0) internal successors, (2236), 13 states have internal predecessors, (2236), 0 states have call successors, (0), 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 08:12:14,019 INFO L186 Difference]: Start difference. First operand has 162 places, 148 transitions, 366 flow. Second operand 12 states and 1471 transitions. [2022-01-19 08:12:14,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 275 transitions, 1074 flow [2022-01-19 08:12:14,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 275 transitions, 1064 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-01-19 08:12:14,040 INFO L242 Difference]: Finished difference. Result has 178 places, 161 transitions, 461 flow [2022-01-19 08:12:14,041 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=461, PETRI_PLACES=178, PETRI_TRANSITIONS=161} [2022-01-19 08:12:14,043 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, 22 predicate places. [2022-01-19 08:12:14,043 INFO L470 AbstractCegarLoop]: Abstraction has has 178 places, 161 transitions, 461 flow [2022-01-19 08:12:14,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.1) internal successors, (1131), 10 states have internal predecessors, (1131), 0 states have call successors, (0), 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 08:12:14,043 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:12:14,044 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] [2022-01-19 08:12:14,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-19 08:12:14,259 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 08:12:14,260 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:12:14,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:12:14,260 INFO L85 PathProgramCache]: Analyzing trace with hash -914912860, now seen corresponding path program 2 times [2022-01-19 08:12:14,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:12:14,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884974263] [2022-01-19 08:12:14,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:12:14,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:12:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:12:14,417 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 08:12:14,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:12:14,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884974263] [2022-01-19 08:12:14,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884974263] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:12:14,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853531058] [2022-01-19 08:12:14,418 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 08:12:14,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:12:14,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:12:14,420 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 08:12:14,428 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 08:12:14,532 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 08:12:14,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 08:12:14,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-19 08:12:14,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:12:14,831 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 08:12:14,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:12:15,114 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 08:12:15,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853531058] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 08:12:15,114 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 08:12:15,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2022-01-19 08:12:15,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866057671] [2022-01-19 08:12:15,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 08:12:15,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 08:12:15,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:12:15,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 08:12:15,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-19 08:12:15,121 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 172 [2022-01-19 08:12:15,123 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 161 transitions, 461 flow. Second operand has 9 states, 9 states have (on average 133.88888888888889) internal successors, (1205), 9 states have internal predecessors, (1205), 0 states have call successors, (0), 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 08:12:15,123 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:12:15,123 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 172 [2022-01-19 08:12:15,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:12:15,672 INFO L129 PetriNetUnfolder]: 1286/4146 cut-off events. [2022-01-19 08:12:15,672 INFO L130 PetriNetUnfolder]: For 1491/1553 co-relation queries the response was YES. [2022-01-19 08:12:15,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7989 conditions, 4146 events. 1286/4146 cut-off events. For 1491/1553 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 38005 event pairs, 200 based on Foata normal form. 38/4003 useless extension candidates. Maximal degree in co-relation 7968. Up to 1196 conditions per place. [2022-01-19 08:12:15,706 INFO L132 encePairwiseOnDemand]: 166/172 looper letters, 53 selfloop transitions, 5 changer transitions 10/192 dead transitions. [2022-01-19 08:12:15,706 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 192 transitions, 725 flow [2022-01-19 08:12:15,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 08:12:15,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 08:12:15,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 939 transitions. [2022-01-19 08:12:15,708 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7799003322259136 [2022-01-19 08:12:15,708 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 939 transitions. [2022-01-19 08:12:15,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 939 transitions. [2022-01-19 08:12:15,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:12:15,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 939 transitions. [2022-01-19 08:12:15,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 134.14285714285714) internal successors, (939), 7 states have internal predecessors, (939), 0 states have call successors, (0), 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 08:12:15,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 172.0) internal successors, (1376), 8 states have internal predecessors, (1376), 0 states have call successors, (0), 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 08:12:15,713 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 172.0) internal successors, (1376), 8 states have internal predecessors, (1376), 0 states have call successors, (0), 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 08:12:15,713 INFO L186 Difference]: Start difference. First operand has 178 places, 161 transitions, 461 flow. Second operand 7 states and 939 transitions. [2022-01-19 08:12:15,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 192 transitions, 725 flow [2022-01-19 08:12:15,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 192 transitions, 713 flow, removed 6 selfloop flow, removed 4 redundant places. [2022-01-19 08:12:15,722 INFO L242 Difference]: Finished difference. Result has 180 places, 164 transitions, 494 flow [2022-01-19 08:12:15,723 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=494, PETRI_PLACES=180, PETRI_TRANSITIONS=164} [2022-01-19 08:12:15,723 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, 24 predicate places. [2022-01-19 08:12:15,723 INFO L470 AbstractCegarLoop]: Abstraction has has 180 places, 164 transitions, 494 flow [2022-01-19 08:12:15,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.88888888888889) internal successors, (1205), 9 states have internal predecessors, (1205), 0 states have call successors, (0), 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 08:12:15,724 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:12:15,724 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] [2022-01-19 08:12:15,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-19 08:12:15,953 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 08:12:15,954 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:12:15,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:12:15,954 INFO L85 PathProgramCache]: Analyzing trace with hash 453014212, now seen corresponding path program 3 times [2022-01-19 08:12:15,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:12:15,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256412610] [2022-01-19 08:12:15,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:12:15,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:12:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:12:16,262 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 08:12:16,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:12:16,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256412610] [2022-01-19 08:12:16,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256412610] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:12:16,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097937713] [2022-01-19 08:12:16,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 08:12:16,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:12:16,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:12:16,265 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 08:12:16,270 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 08:12:16,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-19 08:12:16,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 08:12:16,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 25 conjunts are in the unsatisfiable core [2022-01-19 08:12:16,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:12:17,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 08:12:17,083 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 08:12:17,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 08:12:17,143 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 08:12:17,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 08:12:17,192 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 08:12:17,280 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 08:12:17,315 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 46 treesize of output 22 [2022-01-19 08:12:17,420 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 08:12:17,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:12:17,648 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 50 treesize of output 26 [2022-01-19 08:12:17,872 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_275 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_275) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (<= c_~min~0 (+ .cse0 1))))) is different from false [2022-01-19 08:12:17,936 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_274 (Array Int Int)) (v_ArrVal_275 (Array Int Int))) (let ((.cse0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_274) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_275) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (<= c_~min~0 (+ .cse0 1))))) is different from false [2022-01-19 08:12:18,003 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_274 (Array Int Int)) (v_ArrVal_273 (Array Int Int)) (v_ArrVal_275 (Array Int Int))) (let ((.cse0 (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_273) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_274) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_275) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (<= c_~min~0 (+ .cse0 1))))) is different from false [2022-01-19 08:12:18,013 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 2203 treesize of output 1947 [2022-01-19 08:12:18,106 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 959 treesize of output 927 [2022-01-19 08:12:18,158 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 1883 treesize of output 1755 [2022-01-19 08:12:18,185 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 1755 treesize of output 1691 [2022-01-19 08:12:27,034 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 08:12:27,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097937713] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 08:12:27,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 08:12:27,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [17, 20] total 44 [2022-01-19 08:12:27,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505406962] [2022-01-19 08:12:27,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:12:27,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 08:12:27,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:12:27,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 08:12:27,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1489, Unknown=3, NotChecked=240, Total=1892 [2022-01-19 08:12:27,037 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 172 [2022-01-19 08:12:27,039 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 164 transitions, 494 flow. Second operand has 20 states, 20 states have (on average 91.25) internal successors, (1825), 20 states have internal predecessors, (1825), 0 states have call successors, (0), 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 08:12:27,039 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:12:27,039 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 172 [2022-01-19 08:12:27,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:12:29,770 INFO L129 PetriNetUnfolder]: 9401/21351 cut-off events. [2022-01-19 08:12:29,770 INFO L130 PetriNetUnfolder]: For 13414/13541 co-relation queries the response was YES. [2022-01-19 08:12:29,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45188 conditions, 21351 events. 9401/21351 cut-off events. For 13414/13541 co-relation queries the response was YES. Maximal size of possible extension queue 1120. Compared 226598 event pairs, 2169 based on Foata normal form. 37/20780 useless extension candidates. Maximal degree in co-relation 45166. Up to 6181 conditions per place. [2022-01-19 08:12:29,959 INFO L132 encePairwiseOnDemand]: 149/172 looper letters, 139 selfloop transitions, 37 changer transitions 23/282 dead transitions. [2022-01-19 08:12:29,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 282 transitions, 1371 flow [2022-01-19 08:12:29,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-19 08:12:29,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-19 08:12:29,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2196 transitions. [2022-01-19 08:12:29,965 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5551061678463094 [2022-01-19 08:12:29,965 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2196 transitions. [2022-01-19 08:12:29,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2196 transitions. [2022-01-19 08:12:29,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:12:29,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2196 transitions. [2022-01-19 08:12:29,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 95.47826086956522) internal successors, (2196), 23 states have internal predecessors, (2196), 0 states have call successors, (0), 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 08:12:29,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 172.0) internal successors, (4128), 24 states have internal predecessors, (4128), 0 states have call successors, (0), 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 08:12:29,977 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 172.0) internal successors, (4128), 24 states have internal predecessors, (4128), 0 states have call successors, (0), 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 08:12:29,978 INFO L186 Difference]: Start difference. First operand has 180 places, 164 transitions, 494 flow. Second operand 23 states and 2196 transitions. [2022-01-19 08:12:29,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 282 transitions, 1371 flow [2022-01-19 08:12:30,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 282 transitions, 1359 flow, removed 5 selfloop flow, removed 3 redundant places. [2022-01-19 08:12:30,053 INFO L242 Difference]: Finished difference. Result has 207 places, 189 transitions, 746 flow [2022-01-19 08:12:30,054 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=746, PETRI_PLACES=207, PETRI_TRANSITIONS=189} [2022-01-19 08:12:30,055 INFO L334 CegarLoopForPetriNet]: 156 programPoint places, 51 predicate places. [2022-01-19 08:12:30,055 INFO L470 AbstractCegarLoop]: Abstraction has has 207 places, 189 transitions, 746 flow [2022-01-19 08:12:30,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 91.25) internal successors, (1825), 20 states have internal predecessors, (1825), 0 states have call successors, (0), 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 08:12:30,056 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:12:30,056 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] [2022-01-19 08:12:30,081 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 08:12:30,280 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 08:12:30,280 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:12:30,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:12:30,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1155371228, now seen corresponding path program 4 times [2022-01-19 08:12:30,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:12:30,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867013002] [2022-01-19 08:12:30,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:12:30,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:12:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:12:30,604 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:12:30,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:12:30,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867013002] [2022-01-19 08:12:30,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867013002] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:12:30,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320771015] [2022-01-19 08:12:30,605 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-19 08:12:30,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:12:30,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:12:30,606 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 08:12:30,608 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 08:12:30,727 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-19 08:12:30,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 08:12:30,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 45 conjunts are in the unsatisfiable core [2022-01-19 08:12:30,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:12:31,064 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 08:12:31,277 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 08:12:31,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 08:12:31,403 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 08:12:31,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 08:12:31,563 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 08:12:31,673 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 08:12:31,804 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:12:31,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:12:32,164 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_324 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_324) c_~A~0.base) c_~A~0.offset))) (or (<= c_~min~0 (+ .cse0 1)) (<= 2147483647 .cse0)))) is different from false [2022-01-19 08:12:32,266 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_324 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_324) 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_thread1Thread1of1ForFork0_~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 08:12:32,314 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_324 (Array Int Int))) (let ((.cse3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_324) c_~A~0.base) c_~A~0.offset))) (or (let ((.cse0 (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset))) (let ((.cse1 (+ .cse3 1)) (.cse2 (< c_~min~0 .cse0))) (and (or (<= .cse0 .cse1) .cse2) (or (<= c_~min~0 .cse1) (not .cse2))))) (<= 2147483647 .cse3)))) is different from false [2022-01-19 08:12:32,368 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_324 (Array Int Int)) (v_ArrVal_323 (Array Int Int))) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_323))) (let ((.cse0 (select (select (store .cse4 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_324) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (let ((.cse2 (select (select .cse4 c_~A~0.base) c_~A~0.offset))) (let ((.cse1 (< c_~min~0 .cse2)) (.cse3 (+ .cse0 1))) (and (or .cse1 (<= .cse2 .cse3)) (or (not .cse1) (<= c_~min~0 .cse3))))))))) is different from false [2022-01-19 08:12:32,513 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_324 (Array Int Int)) (v_ArrVal_323 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_323))) (let ((.cse0 (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_324) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (<= (select (select .cse1 c_~A~0.base) c_~A~0.offset) (+ .cse0 1)))))) is different from false [2022-01-19 08:12:32,525 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_322 (Array Int Int)) (v_ArrVal_324 (Array Int Int)) (v_ArrVal_323 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_322) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_323))) (let ((.cse0 (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_324) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (<= (select (select .cse1 c_~A~0.base) c_~A~0.offset) (+ .cse0 1)))))) is different from false [2022-01-19 08:12:32,549 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_322 (Array Int Int)) (v_ArrVal_324 (Array Int Int)) (v_ArrVal_323 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_322) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_323))) (let ((.cse0 (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_324) |c_ULTIMATE.start_main_#t~ret16#1.base|) |c_ULTIMATE.start_main_#t~ret16#1.offset|))) (or (<= 2147483647 .cse0) (<= (select (select .cse1 |c_ULTIMATE.start_main_#t~ret16#1.base|) |c_ULTIMATE.start_main_#t~ret16#1.offset|) (+ .cse0 1)))))) is different from false [2022-01-19 08:12:32,562 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_322 (Array Int Int)) (v_ArrVal_324 (Array Int Int)) (v_ArrVal_323 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_322) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_323))) (let ((.cse0 (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_324) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|))) (or (<= 2147483647 .cse0) (<= (select (select .cse1 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) (+ .cse0 1)))))) is different from false [2022-01-19 08:12:32,570 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_322 (Array Int Int)) (v_ArrVal_324 (Array Int Int)) (v_ArrVal_323 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_322) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_323))) (let ((.cse1 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_324) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (<= (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) (+ .cse1 1)) (<= 2147483647 .cse1))))) is different from false [2022-01-19 08:12:32,604 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 08:12:32,605 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 57 [2022-01-19 08:12:32,607 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 1359 treesize of output 1271 [2022-01-19 08:12:32,630 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 1215 treesize of output 1135 [2022-01-19 08:12:32,643 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 1135 treesize of output 1091 [2022-01-19 08:12:32,654 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 993 treesize of output 921 Received shutdown request... [2022-01-19 08:25:25,779 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 08:25:25,781 WARN L244 SmtUtils]: Removed 1 from assertion stack [2022-01-19 08:25:25,785 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-19 08:25:25,787 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 08:25:25,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-19 08:25:25,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:25:25,988 WARN L594 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 144 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. [2022-01-19 08:25:25,989 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-19 08:25:25,989 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-01-19 08:25:25,989 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-01-19 08:25:25,989 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-01-19 08:25:25,992 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2022-01-19 08:25:25,994 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 08:25:25,994 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 08:25:25,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 08:25:25 BasicIcfg [2022-01-19 08:25:25,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 08:25:25,997 INFO L158 Benchmark]: Toolchain (without parser) took 801871.62ms. Allocated memory was 373.3MB in the beginning and 3.2GB in the end (delta: 2.9GB). Free memory was 319.4MB in the beginning and 2.4GB in the end (delta: -2.1GB). Peak memory consumption was 2.2GB. Max. memory is 16.0GB. [2022-01-19 08:25:25,997 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 373.3MB. Free memory is still 335.8MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 08:25:25,997 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.03ms. Allocated memory is still 373.3MB. Free memory was 319.2MB in the beginning and 344.9MB in the end (delta: -25.6MB). Peak memory consumption was 17.0MB. Max. memory is 16.0GB. [2022-01-19 08:25:25,997 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.71ms. Allocated memory is still 373.3MB. Free memory was 344.9MB in the beginning and 342.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 08:25:25,998 INFO L158 Benchmark]: Boogie Preprocessor took 25.35ms. Allocated memory is still 373.3MB. Free memory was 342.8MB in the beginning and 341.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 08:25:25,998 INFO L158 Benchmark]: RCFGBuilder took 505.24ms. Allocated memory is still 373.3MB. Free memory was 341.3MB in the beginning and 319.7MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2022-01-19 08:25:25,998 INFO L158 Benchmark]: TraceAbstraction took 801075.78ms. Allocated memory was 373.3MB in the beginning and 3.2GB in the end (delta: 2.9GB). Free memory was 318.6MB in the beginning and 2.4GB in the end (delta: -2.1GB). Peak memory consumption was 2.2GB. Max. memory is 16.0GB. [2022-01-19 08:25:26,000 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 373.3MB. Free memory is still 335.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 229.03ms. Allocated memory is still 373.3MB. Free memory was 319.2MB in the beginning and 344.9MB in the end (delta: -25.6MB). Peak memory consumption was 17.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 31.71ms. Allocated memory is still 373.3MB. Free memory was 344.9MB in the beginning and 342.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.35ms. Allocated memory is still 373.3MB. Free memory was 342.8MB in the beginning and 341.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 505.24ms. Allocated memory is still 373.3MB. Free memory was 341.3MB in the beginning and 319.7MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 801075.78ms. Allocated memory was 373.3MB in the beginning and 3.2GB in the end (delta: 2.9GB). Free memory was 318.6MB in the beginning and 2.4GB in the end (delta: -2.1GB). Peak memory consumption was 2.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 144 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 144 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 113]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 144 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 144 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 144 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 200 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 801.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 749 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 749 mSDsluCounter, 1098 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 402 IncrementalHoareTripleChecker+Unchecked, 1467 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1635 IncrementalHoareTripleChecker+Invalid, 2089 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 194 mSDtfsCounter, 1635 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1510 GetRequests, 1347 SyntacticMatches, 8 SemanticMatches, 155 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1348 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=746occurred in iteration=8, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 15.3s InterpolantComputationTime, 1768 NumberOfCodeBlocks, 1768 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2450 ConstructedInterpolants, 17 QuantifiedInterpolants, 11163 SizeOfPredicates, 74 NumberOfNonLiveVariables, 1753 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 39/52 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown