/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/mix026.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:32:32,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:32:32,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:32:32,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:32:32,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:32:32,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:32:32,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:32:32,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:32:32,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:32:32,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:32:32,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:32:32,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:32:32,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:32:32,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:32:32,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:32:32,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:32:32,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:32:32,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:32:32,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:32:32,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:32:32,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:32:32,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:32:32,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:32:32,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:32:32,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:32:32,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:32:32,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:32:32,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:32:32,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:32:32,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:32:32,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:32:32,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:32:32,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:32:32,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:32:32,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:32:32,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:32:32,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:32:32,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:32:32,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:32:32,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:32:32,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:32:32,515 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:32:32,532 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:32:32,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:32:32,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:32:32,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:32:32,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:32:32,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:32:32,534 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:32:32,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:32:32,534 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:32:32,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:32:32,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:32:32,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:32:32,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:32:32,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:32:32,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:32:32,535 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:32:32,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:32:32,536 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:32:32,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:32:32,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:32:32,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:32:32,536 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:32:32,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:32:32,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:32:32,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:32:32,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:32:32,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:32:32,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:32:32,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:32:32,537 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:32:32,537 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:32:32,537 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:32:32,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:32:32,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:32:32,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:32:32,803 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:32:32,804 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:32:32,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix026.oepc.i [2022-09-16 11:32:32,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66d535e42/b4343918d08c4fc0a919e03604058482/FLAGa8ee59a77 [2022-09-16 11:32:33,408 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:32:33,408 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix026.oepc.i [2022-09-16 11:32:33,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66d535e42/b4343918d08c4fc0a919e03604058482/FLAGa8ee59a77 [2022-09-16 11:32:33,684 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66d535e42/b4343918d08c4fc0a919e03604058482 [2022-09-16 11:32:33,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:32:33,692 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:32:33,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:32:33,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:32:33,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:32:33,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:32:33" (1/1) ... [2022-09-16 11:32:33,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de19c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:33, skipping insertion in model container [2022-09-16 11:32:33,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:32:33" (1/1) ... [2022-09-16 11:32:33,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:32:33,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:32:34,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix026.oepc.i[945,958] [2022-09-16 11:32:34,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:32:34,291 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:32:34,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix026.oepc.i[945,958] [2022-09-16 11:32:34,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:32:34,397 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:32:34,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:34 WrapperNode [2022-09-16 11:32:34,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:32:34,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:32:34,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:32:34,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:32:34,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:34" (1/1) ... [2022-09-16 11:32:34,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:34" (1/1) ... [2022-09-16 11:32:34,472 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 195 [2022-09-16 11:32:34,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:32:34,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:32:34,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:32:34,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:32:34,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:34" (1/1) ... [2022-09-16 11:32:34,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:34" (1/1) ... [2022-09-16 11:32:34,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:34" (1/1) ... [2022-09-16 11:32:34,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:34" (1/1) ... [2022-09-16 11:32:34,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:34" (1/1) ... [2022-09-16 11:32:34,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:34" (1/1) ... [2022-09-16 11:32:34,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:34" (1/1) ... [2022-09-16 11:32:34,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:32:34,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:32:34,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:32:34,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:32:34,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:34" (1/1) ... [2022-09-16 11:32:34,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:32:34,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:32:34,577 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) [2022-09-16 11:32:34,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:32:34,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:32:34,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:32:34,599 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 [2022-09-16 11:32:34,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:32:34,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:32:34,616 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:32:34,616 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:32:34,616 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:32:34,616 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:32:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:32:34,617 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:32:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 11:32:34,617 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 11:32:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:32:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:32:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:32:34,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:32:34,619 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:32:34,819 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:32:34,820 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:32:35,332 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:32:35,833 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:32:35,833 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:32:35,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:32:35 BoogieIcfgContainer [2022-09-16 11:32:35,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:32:35,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:32:35,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:32:35,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:32:35,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:32:33" (1/3) ... [2022-09-16 11:32:35,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122b9d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:32:35, skipping insertion in model container [2022-09-16 11:32:35,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:34" (2/3) ... [2022-09-16 11:32:35,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122b9d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:32:35, skipping insertion in model container [2022-09-16 11:32:35,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:32:35" (3/3) ... [2022-09-16 11:32:35,845 INFO L112 eAbstractionObserver]: Analyzing ICFG mix026.oepc.i [2022-09-16 11:32:35,862 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:32:35,863 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 11:32:35,863 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:32:35,944 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:32:35,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 144 transitions, 308 flow [2022-09-16 11:32:36,052 INFO L130 PetriNetUnfolder]: 2/140 cut-off events. [2022-09-16 11:32:36,053 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:32:36,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 140 events. 2/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2022-09-16 11:32:36,058 INFO L82 GeneralOperation]: Start removeDead. Operand has 155 places, 144 transitions, 308 flow [2022-09-16 11:32:36,064 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 140 transitions, 292 flow [2022-09-16 11:32:36,081 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:32:36,089 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5d82c074, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:32:36,089 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 11:32:36,111 INFO L130 PetriNetUnfolder]: 0/58 cut-off events. [2022-09-16 11:32:36,111 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:32:36,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:36,113 INFO L208 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] [2022-09-16 11:32:36,114 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:36,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:36,120 INFO L85 PathProgramCache]: Analyzing trace with hash 417403391, now seen corresponding path program 1 times [2022-09-16 11:32:36,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:36,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554622353] [2022-09-16 11:32:36,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:36,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:36,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:32:36,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:36,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554622353] [2022-09-16 11:32:36,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554622353] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:36,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:36,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:32:36,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196768879] [2022-09-16 11:32:36,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:36,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:32:36,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:36,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:32:36,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:32:36,550 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 144 [2022-09-16 11:32:36,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 140 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:36,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:36,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 144 [2022-09-16 11:32:36,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:38,069 INFO L130 PetriNetUnfolder]: 4102/7315 cut-off events. [2022-09-16 11:32:38,069 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2022-09-16 11:32:38,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13340 conditions, 7315 events. 4102/7315 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 481. Compared 57333 event pairs, 1225 based on Foata normal form. 198/5168 useless extension candidates. Maximal degree in co-relation 13282. Up to 5438 conditions per place. [2022-09-16 11:32:38,176 INFO L137 encePairwiseOnDemand]: 129/144 looper letters, 35 selfloop transitions, 5 changer transitions 0/152 dead transitions. [2022-09-16 11:32:38,177 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 152 transitions, 405 flow [2022-09-16 11:32:38,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:32:38,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:32:38,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2022-09-16 11:32:38,191 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2022-09-16 11:32:38,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 400 transitions. [2022-09-16 11:32:38,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 400 transitions. [2022-09-16 11:32:38,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:38,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 400 transitions. [2022-09-16 11:32:38,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:38,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:38,208 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:38,210 INFO L175 Difference]: Start difference. First operand has 151 places, 140 transitions, 292 flow. Second operand 3 states and 400 transitions. [2022-09-16 11:32:38,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 152 transitions, 405 flow [2022-09-16 11:32:38,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 152 transitions, 398 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:32:38,217 INFO L231 Difference]: Finished difference. Result has 149 places, 141 transitions, 329 flow [2022-09-16 11:32:38,219 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=329, PETRI_PLACES=149, PETRI_TRANSITIONS=141} [2022-09-16 11:32:38,222 INFO L287 CegarLoopForPetriNet]: 151 programPoint places, -2 predicate places. [2022-09-16 11:32:38,222 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 141 transitions, 329 flow [2022-09-16 11:32:38,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:38,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:38,223 INFO L208 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] [2022-09-16 11:32:38,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:32:38,224 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:38,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:38,224 INFO L85 PathProgramCache]: Analyzing trace with hash -2108179021, now seen corresponding path program 1 times [2022-09-16 11:32:38,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:38,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005043762] [2022-09-16 11:32:38,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:38,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:38,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:32:38,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:38,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005043762] [2022-09-16 11:32:38,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005043762] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:38,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:38,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:32:38,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410523895] [2022-09-16 11:32:38,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:38,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:32:38,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:38,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:32:38,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:32:38,384 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 144 [2022-09-16 11:32:38,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 141 transitions, 329 flow. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:38,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:38,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 144 [2022-09-16 11:32:38,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:39,261 INFO L130 PetriNetUnfolder]: 2592/5271 cut-off events. [2022-09-16 11:32:39,262 INFO L131 PetriNetUnfolder]: For 116/116 co-relation queries the response was YES. [2022-09-16 11:32:39,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11226 conditions, 5271 events. 2592/5271 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 44257 event pairs, 417 based on Foata normal form. 0/4068 useless extension candidates. Maximal degree in co-relation 11169. Up to 2078 conditions per place. [2022-09-16 11:32:39,327 INFO L137 encePairwiseOnDemand]: 131/144 looper letters, 45 selfloop transitions, 13 changer transitions 0/170 dead transitions. [2022-09-16 11:32:39,328 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 170 transitions, 529 flow [2022-09-16 11:32:39,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:32:39,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:32:39,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 526 transitions. [2022-09-16 11:32:39,331 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9131944444444444 [2022-09-16 11:32:39,331 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 526 transitions. [2022-09-16 11:32:39,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 526 transitions. [2022-09-16 11:32:39,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:39,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 526 transitions. [2022-09-16 11:32:39,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.5) internal successors, (526), 4 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:39,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:39,335 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:39,335 INFO L175 Difference]: Start difference. First operand has 149 places, 141 transitions, 329 flow. Second operand 4 states and 526 transitions. [2022-09-16 11:32:39,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 170 transitions, 529 flow [2022-09-16 11:32:39,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 170 transitions, 524 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:32:39,341 INFO L231 Difference]: Finished difference. Result has 153 places, 149 transitions, 427 flow [2022-09-16 11:32:39,341 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=427, PETRI_PLACES=153, PETRI_TRANSITIONS=149} [2022-09-16 11:32:39,342 INFO L287 CegarLoopForPetriNet]: 151 programPoint places, 2 predicate places. [2022-09-16 11:32:39,342 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 149 transitions, 427 flow [2022-09-16 11:32:39,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:39,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:39,343 INFO L208 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] [2022-09-16 11:32:39,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:32:39,343 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:39,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:39,344 INFO L85 PathProgramCache]: Analyzing trace with hash -2108179020, now seen corresponding path program 1 times [2022-09-16 11:32:39,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:39,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522381193] [2022-09-16 11:32:39,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:39,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:39,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:32:39,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:39,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522381193] [2022-09-16 11:32:39,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522381193] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:39,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:39,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:32:39,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970737395] [2022-09-16 11:32:39,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:39,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:32:39,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:39,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:32:39,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:32:39,410 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 144 [2022-09-16 11:32:39,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 149 transitions, 427 flow. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:39,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:39,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 144 [2022-09-16 11:32:39,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:39,960 INFO L130 PetriNetUnfolder]: 1367/3139 cut-off events. [2022-09-16 11:32:39,960 INFO L131 PetriNetUnfolder]: For 1472/1472 co-relation queries the response was YES. [2022-09-16 11:32:39,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6916 conditions, 3139 events. 1367/3139 cut-off events. For 1472/1472 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 24277 event pairs, 279 based on Foata normal form. 379/3203 useless extension candidates. Maximal degree in co-relation 6856. Up to 1599 conditions per place. [2022-09-16 11:32:39,994 INFO L137 encePairwiseOnDemand]: 135/144 looper letters, 35 selfloop transitions, 5 changer transitions 0/152 dead transitions. [2022-09-16 11:32:39,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 152 transitions, 479 flow [2022-09-16 11:32:39,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:32:39,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:32:39,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 504 transitions. [2022-09-16 11:32:39,996 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.875 [2022-09-16 11:32:39,996 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 504 transitions. [2022-09-16 11:32:39,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 504 transitions. [2022-09-16 11:32:39,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:39,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 504 transitions. [2022-09-16 11:32:39,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:39,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:40,000 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:40,000 INFO L175 Difference]: Start difference. First operand has 153 places, 149 transitions, 427 flow. Second operand 4 states and 504 transitions. [2022-09-16 11:32:40,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 152 transitions, 479 flow [2022-09-16 11:32:40,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 152 transitions, 456 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-09-16 11:32:40,032 INFO L231 Difference]: Finished difference. Result has 149 places, 141 transitions, 358 flow [2022-09-16 11:32:40,032 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=358, PETRI_PLACES=149, PETRI_TRANSITIONS=141} [2022-09-16 11:32:40,034 INFO L287 CegarLoopForPetriNet]: 151 programPoint places, -2 predicate places. [2022-09-16 11:32:40,034 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 141 transitions, 358 flow [2022-09-16 11:32:40,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:40,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:40,035 INFO L208 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] [2022-09-16 11:32:40,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:32:40,035 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:40,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:40,035 INFO L85 PathProgramCache]: Analyzing trace with hash 291398441, now seen corresponding path program 1 times [2022-09-16 11:32:40,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:40,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26169778] [2022-09-16 11:32:40,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:40,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:40,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:32:40,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:40,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26169778] [2022-09-16 11:32:40,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26169778] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:40,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:40,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:32:40,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607330607] [2022-09-16 11:32:40,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:40,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:32:40,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:40,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:32:40,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:32:40,181 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 144 [2022-09-16 11:32:40,182 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 141 transitions, 358 flow. Second operand has 5 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:40,182 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:40,182 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 144 [2022-09-16 11:32:40,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:40,697 INFO L130 PetriNetUnfolder]: 1184/2827 cut-off events. [2022-09-16 11:32:40,698 INFO L131 PetriNetUnfolder]: For 1041/1041 co-relation queries the response was YES. [2022-09-16 11:32:40,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5699 conditions, 2827 events. 1184/2827 cut-off events. For 1041/1041 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 21534 event pairs, 246 based on Foata normal form. 0/2689 useless extension candidates. Maximal degree in co-relation 5640. Up to 683 conditions per place. [2022-09-16 11:32:40,725 INFO L137 encePairwiseOnDemand]: 135/144 looper letters, 46 selfloop transitions, 13 changer transitions 4/175 dead transitions. [2022-09-16 11:32:40,725 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 175 transitions, 580 flow [2022-09-16 11:32:40,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:32:40,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:32:40,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 647 transitions. [2022-09-16 11:32:40,728 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8986111111111111 [2022-09-16 11:32:40,728 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 647 transitions. [2022-09-16 11:32:40,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 647 transitions. [2022-09-16 11:32:40,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:40,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 647 transitions. [2022-09-16 11:32:40,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.4) internal successors, (647), 5 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:40,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 144.0) internal successors, (864), 6 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:40,732 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 144.0) internal successors, (864), 6 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:40,732 INFO L175 Difference]: Start difference. First operand has 149 places, 141 transitions, 358 flow. Second operand 5 states and 647 transitions. [2022-09-16 11:32:40,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 175 transitions, 580 flow [2022-09-16 11:32:40,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 175 transitions, 574 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:32:40,737 INFO L231 Difference]: Finished difference. Result has 152 places, 141 transitions, 394 flow [2022-09-16 11:32:40,737 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=394, PETRI_PLACES=152, PETRI_TRANSITIONS=141} [2022-09-16 11:32:40,738 INFO L287 CegarLoopForPetriNet]: 151 programPoint places, 1 predicate places. [2022-09-16 11:32:40,738 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 141 transitions, 394 flow [2022-09-16 11:32:40,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:40,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:40,739 INFO L208 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] [2022-09-16 11:32:40,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:32:40,739 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:40,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:40,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1366852196, now seen corresponding path program 1 times [2022-09-16 11:32:40,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:40,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276163143] [2022-09-16 11:32:40,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:40,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:40,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:32:40,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:40,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276163143] [2022-09-16 11:32:40,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276163143] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:40,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:40,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:32:40,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580134748] [2022-09-16 11:32:40,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:40,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:32:40,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:40,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:32:40,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:32:40,845 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 144 [2022-09-16 11:32:40,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 141 transitions, 394 flow. Second operand has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:40,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:40,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 144 [2022-09-16 11:32:40,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:41,419 INFO L130 PetriNetUnfolder]: 1165/3272 cut-off events. [2022-09-16 11:32:41,419 INFO L131 PetriNetUnfolder]: For 1962/1962 co-relation queries the response was YES. [2022-09-16 11:32:41,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6689 conditions, 3272 events. 1165/3272 cut-off events. For 1962/1962 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 26104 event pairs, 375 based on Foata normal form. 12/3126 useless extension candidates. Maximal degree in co-relation 6629. Up to 683 conditions per place. [2022-09-16 11:32:41,442 INFO L137 encePairwiseOnDemand]: 135/144 looper letters, 0 selfloop transitions, 0 changer transitions 167/167 dead transitions. [2022-09-16 11:32:41,442 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 167 transitions, 544 flow [2022-09-16 11:32:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:32:41,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:32:41,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 755 transitions. [2022-09-16 11:32:41,449 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8738425925925926 [2022-09-16 11:32:41,449 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 755 transitions. [2022-09-16 11:32:41,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 755 transitions. [2022-09-16 11:32:41,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:41,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 755 transitions. [2022-09-16 11:32:41,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.83333333333333) internal successors, (755), 6 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:41,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:41,463 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:41,464 INFO L175 Difference]: Start difference. First operand has 152 places, 141 transitions, 394 flow. Second operand 6 states and 755 transitions. [2022-09-16 11:32:41,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 167 transitions, 544 flow [2022-09-16 11:32:41,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 167 transitions, 489 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-09-16 11:32:41,471 INFO L231 Difference]: Finished difference. Result has 147 places, 0 transitions, 0 flow [2022-09-16 11:32:41,471 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=147, PETRI_TRANSITIONS=0} [2022-09-16 11:32:41,472 INFO L287 CegarLoopForPetriNet]: 151 programPoint places, -4 predicate places. [2022-09-16 11:32:41,472 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 0 transitions, 0 flow [2022-09-16 11:32:41,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:41,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-09-16 11:32:41,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-09-16 11:32:41,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-09-16 11:32:41,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-09-16 11:32:41,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-09-16 11:32:41,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-09-16 11:32:41,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-09-16 11:32:41,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-09-16 11:32:41,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-09-16 11:32:41,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-09-16 11:32:41,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-09-16 11:32:41,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-09-16 11:32:41,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-09-16 11:32:41,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-09-16 11:32:41,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-09-16 11:32:41,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-09-16 11:32:41,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-09-16 11:32:41,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-09-16 11:32:41,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-09-16 11:32:41,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-09-16 11:32:41,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:32:41,490 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-09-16 11:32:41,498 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:32:41,498 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:32:41,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:32:41 BasicIcfg [2022-09-16 11:32:41,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:32:41,504 INFO L158 Benchmark]: Toolchain (without parser) took 7811.34ms. Allocated memory was 232.8MB in the beginning and 778.0MB in the end (delta: 545.3MB). Free memory was 209.2MB in the beginning and 272.9MB in the end (delta: -63.8MB). Peak memory consumption was 481.0MB. Max. memory is 8.0GB. [2022-09-16 11:32:41,507 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 232.8MB. Free memory was 192.4MB in the beginning and 192.3MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:32:41,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 698.71ms. Allocated memory is still 232.8MB. Free memory was 209.2MB in the beginning and 192.7MB in the end (delta: 16.5MB). Peak memory consumption was 20.2MB. Max. memory is 8.0GB. [2022-09-16 11:32:41,511 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.02ms. Allocated memory is still 232.8MB. Free memory was 192.7MB in the beginning and 190.3MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:32:41,512 INFO L158 Benchmark]: Boogie Preprocessor took 63.85ms. Allocated memory is still 232.8MB. Free memory was 190.3MB in the beginning and 187.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:32:41,513 INFO L158 Benchmark]: RCFGBuilder took 1297.59ms. Allocated memory was 232.8MB in the beginning and 280.0MB in the end (delta: 47.2MB). Free memory was 187.8MB in the beginning and 183.4MB in the end (delta: 4.4MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. [2022-09-16 11:32:41,513 INFO L158 Benchmark]: TraceAbstraction took 5665.11ms. Allocated memory was 280.0MB in the beginning and 778.0MB in the end (delta: 498.1MB). Free memory was 182.4MB in the beginning and 272.9MB in the end (delta: -90.6MB). Peak memory consumption was 408.0MB. Max. memory is 8.0GB. [2022-09-16 11:32:41,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 232.8MB. Free memory was 192.4MB in the beginning and 192.3MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 698.71ms. Allocated memory is still 232.8MB. Free memory was 209.2MB in the beginning and 192.7MB in the end (delta: 16.5MB). Peak memory consumption was 20.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 74.02ms. Allocated memory is still 232.8MB. Free memory was 192.7MB in the beginning and 190.3MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.85ms. Allocated memory is still 232.8MB. Free memory was 190.3MB in the beginning and 187.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1297.59ms. Allocated memory was 232.8MB in the beginning and 280.0MB in the end (delta: 47.2MB). Free memory was 187.8MB in the beginning and 183.4MB in the end (delta: 4.4MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. * TraceAbstraction took 5665.11ms. Allocated memory was 280.0MB in the beginning and 778.0MB in the end (delta: 498.1MB). Free memory was 182.4MB in the beginning and 272.9MB in the end (delta: -90.6MB). Peak memory consumption was 408.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 851]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 851]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 188 locations, 20 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: 5.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 150 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 150 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 302 IncrementalHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 17 mSDtfsCounter, 302 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=427occurred in iteration=2, InterpolantAutomatonStates: 22, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 345 ConstructedInterpolants, 0 QuantifiedInterpolants, 955 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:32:41,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...