/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/safe036.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:35:36,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:35:36,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:35:36,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:35:36,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:35:36,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:35:36,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:35:36,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:35:36,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:35:36,817 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:35:36,818 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:35:36,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:35:36,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:35:36,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:35:36,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:35:36,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:35:36,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:35:36,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:35:36,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:35:36,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:35:36,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:35:36,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:35:36,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:35:36,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:35:36,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:35:36,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:35:36,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:35:36,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:35:36,847 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:35:36,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:35:36,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:35:36,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:35:36,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:35:36,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:35:36,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:35:36,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:35:36,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:35:36,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:35:36,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:35:36,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:35:36,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:35:36,853 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 11:35:36,883 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:35:36,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:35:36,884 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:35:36,884 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:35:36,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:35:36,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:35:36,885 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:35:36,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:35:36,885 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:35:36,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:35:36,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:35:36,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:35:36,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:35:36,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:35:36,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:35:36,886 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:35:36,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:35:36,886 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:35:36,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:35:36,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:35:36,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:35:36,893 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:35:36,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:35:36,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:36,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:35:36,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:35:36,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:35:36,895 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:35:36,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:35:36,895 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:35:36,895 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:35:36,896 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:35:37,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:35:37,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:35:37,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:35:37,167 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:35:37,169 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:35:37,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036.i [2022-09-16 11:35:37,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76af63715/50109c7bb669400e8f071fdaacae547a/FLAGb1884651f [2022-09-16 11:35:37,678 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:35:37,679 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036.i [2022-09-16 11:35:37,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76af63715/50109c7bb669400e8f071fdaacae547a/FLAGb1884651f [2022-09-16 11:35:38,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76af63715/50109c7bb669400e8f071fdaacae547a [2022-09-16 11:35:38,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:35:38,046 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:35:38,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:38,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:35:38,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:35:38,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:38" (1/1) ... [2022-09-16 11:35:38,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45894d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:38, skipping insertion in model container [2022-09-16 11:35:38,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:38" (1/1) ... [2022-09-16 11:35:38,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:35:38,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:35:38,332 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/safe036.i[941,954] [2022-09-16 11:35:38,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:38,533 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:35:38,547 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/safe036.i[941,954] [2022-09-16 11:35:38,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:38,613 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:35:38,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:38 WrapperNode [2022-09-16 11:35:38,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:38,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:38,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:35:38,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:35:38,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:38" (1/1) ... [2022-09-16 11:35:38,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:38" (1/1) ... [2022-09-16 11:35:38,684 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-09-16 11:35:38,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:38,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:35:38,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:35:38,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:35:38,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:38" (1/1) ... [2022-09-16 11:35:38,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:38" (1/1) ... [2022-09-16 11:35:38,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:38" (1/1) ... [2022-09-16 11:35:38,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:38" (1/1) ... [2022-09-16 11:35:38,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:38" (1/1) ... [2022-09-16 11:35:38,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:38" (1/1) ... [2022-09-16 11:35:38,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:38" (1/1) ... [2022-09-16 11:35:38,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:35:38,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:35:38,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:35:38,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:35:38,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:38" (1/1) ... [2022-09-16 11:35:38,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:38,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:35:38,761 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 11:35:38,780 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 11:35:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:35:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:35:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:35:38,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:35:38,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:35:38,810 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:35:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:35:38,810 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:35:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:35:38,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:35:38,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:35:38,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:35:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:35:38,812 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 11:35:38,909 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:35:38,910 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:35:39,091 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:35:39,122 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:35:39,122 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:35:39,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:39 BoogieIcfgContainer [2022-09-16 11:35:39,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:35:39,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:35:39,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:35:39,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:35:39,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:35:38" (1/3) ... [2022-09-16 11:35:39,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2694d7e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:39, skipping insertion in model container [2022-09-16 11:35:39,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:38" (2/3) ... [2022-09-16 11:35:39,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2694d7e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:39, skipping insertion in model container [2022-09-16 11:35:39,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:39" (3/3) ... [2022-09-16 11:35:39,140 INFO L112 eAbstractionObserver]: Analyzing ICFG safe036.i [2022-09-16 11:35:39,157 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:35:39,157 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-09-16 11:35:39,157 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:35:39,224 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:35:39,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 78 transitions, 166 flow [2022-09-16 11:35:39,292 INFO L130 PetriNetUnfolder]: 2/76 cut-off events. [2022-09-16 11:35:39,292 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:39,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-09-16 11:35:39,298 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 78 transitions, 166 flow [2022-09-16 11:35:39,301 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 76 transitions, 158 flow [2022-09-16 11:35:39,311 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:35:39,321 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;@1414c019, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:35:39,321 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-09-16 11:35:39,338 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2022-09-16 11:35:39,338 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:39,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:39,342 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] [2022-09-16 11:35:39,343 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:35:39,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:39,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1910249687, now seen corresponding path program 1 times [2022-09-16 11:35:39,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:39,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433205913] [2022-09-16 11:35:39,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:39,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:39,661 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 11:35:39,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:39,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433205913] [2022-09-16 11:35:39,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433205913] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:39,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:39,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:35:39,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927118752] [2022-09-16 11:35:39,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:39,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:35:39,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:39,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:35:39,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:35:39,709 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 78 [2022-09-16 11:35:39,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 76 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 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 11:35:39,713 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:39,713 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 78 [2022-09-16 11:35:39,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:39,799 INFO L130 PetriNetUnfolder]: 10/102 cut-off events. [2022-09-16 11:35:39,799 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-09-16 11:35:39,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 102 events. 10/102 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 215 event pairs, 0 based on Foata normal form. 9/101 useless extension candidates. Maximal degree in co-relation 109. Up to 26 conditions per place. [2022-09-16 11:35:39,802 INFO L137 encePairwiseOnDemand]: 69/78 looper letters, 9 selfloop transitions, 3 changer transitions 2/77 dead transitions. [2022-09-16 11:35:39,802 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 77 transitions, 191 flow [2022-09-16 11:35:39,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:35:39,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:35:39,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2022-09-16 11:35:39,820 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9273504273504274 [2022-09-16 11:35:39,821 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 217 transitions. [2022-09-16 11:35:39,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 217 transitions. [2022-09-16 11:35:39,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:39,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 217 transitions. [2022-09-16 11:35:39,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 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 11:35:39,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 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) [2022-09-16 11:35:39,844 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 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) [2022-09-16 11:35:39,846 INFO L175 Difference]: Start difference. First operand has 81 places, 76 transitions, 158 flow. Second operand 3 states and 217 transitions. [2022-09-16 11:35:39,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 77 transitions, 191 flow [2022-09-16 11:35:39,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 77 transitions, 188 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:35:39,861 INFO L231 Difference]: Finished difference. Result has 81 places, 73 transitions, 167 flow [2022-09-16 11:35:39,863 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=167, PETRI_PLACES=81, PETRI_TRANSITIONS=73} [2022-09-16 11:35:39,866 INFO L287 CegarLoopForPetriNet]: 81 programPoint places, 0 predicate places. [2022-09-16 11:35:39,867 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 73 transitions, 167 flow [2022-09-16 11:35:39,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 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 11:35:39,867 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:39,867 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] [2022-09-16 11:35:39,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:35:39,868 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:35:39,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:39,869 INFO L85 PathProgramCache]: Analyzing trace with hash -397739846, now seen corresponding path program 1 times [2022-09-16 11:35:39,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:39,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151095189] [2022-09-16 11:35:39,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:39,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:39,967 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 11:35:39,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:39,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151095189] [2022-09-16 11:35:39,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151095189] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:39,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:39,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:35:39,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452626574] [2022-09-16 11:35:39,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:39,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:35:39,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:39,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:35:39,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:35:39,974 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 78 [2022-09-16 11:35:39,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 73 transitions, 167 flow. Second operand has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 0 states have call successors, (0), 0 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 11:35:39,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:39,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 78 [2022-09-16 11:35:39,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:40,037 INFO L130 PetriNetUnfolder]: 5/87 cut-off events. [2022-09-16 11:35:40,037 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-09-16 11:35:40,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 87 events. 5/87 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 124 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 97. Up to 14 conditions per place. [2022-09-16 11:35:40,038 INFO L137 encePairwiseOnDemand]: 73/78 looper letters, 7 selfloop transitions, 3 changer transitions 0/73 dead transitions. [2022-09-16 11:35:40,038 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 73 transitions, 185 flow [2022-09-16 11:35:40,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:35:40,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:35:40,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 272 transitions. [2022-09-16 11:35:40,041 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8717948717948718 [2022-09-16 11:35:40,041 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 272 transitions. [2022-09-16 11:35:40,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 272 transitions. [2022-09-16 11:35:40,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:40,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 272 transitions. [2022-09-16 11:35:40,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 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 11:35:40,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 0 states have call successors, (0), 0 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 11:35:40,044 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 0 states have call successors, (0), 0 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 11:35:40,045 INFO L175 Difference]: Start difference. First operand has 81 places, 73 transitions, 167 flow. Second operand 4 states and 272 transitions. [2022-09-16 11:35:40,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 73 transitions, 185 flow [2022-09-16 11:35:40,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 73 transitions, 182 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:35:40,047 INFO L231 Difference]: Finished difference. Result has 81 places, 71 transitions, 162 flow [2022-09-16 11:35:40,048 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=162, PETRI_PLACES=81, PETRI_TRANSITIONS=71} [2022-09-16 11:35:40,048 INFO L287 CegarLoopForPetriNet]: 81 programPoint places, 0 predicate places. [2022-09-16 11:35:40,049 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 71 transitions, 162 flow [2022-09-16 11:35:40,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 0 states have call successors, (0), 0 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 11:35:40,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:40,049 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] [2022-09-16 11:35:40,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:35:40,050 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:35:40,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:40,050 INFO L85 PathProgramCache]: Analyzing trace with hash -605864013, now seen corresponding path program 1 times [2022-09-16 11:35:40,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:40,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108904379] [2022-09-16 11:35:40,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:40,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:40,119 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 11:35:40,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:40,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108904379] [2022-09-16 11:35:40,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108904379] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:40,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:40,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:35:40,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398391455] [2022-09-16 11:35:40,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:40,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:35:40,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:40,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:35:40,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:35:40,122 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 78 [2022-09-16 11:35:40,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 71 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 0 states have call successors, (0), 0 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 11:35:40,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:40,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 78 [2022-09-16 11:35:40,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:40,158 INFO L130 PetriNetUnfolder]: 3/105 cut-off events. [2022-09-16 11:35:40,158 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-09-16 11:35:40,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 105 events. 3/105 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 144 event pairs, 0 based on Foata normal form. 4/105 useless extension candidates. Maximal degree in co-relation 105. Up to 8 conditions per place. [2022-09-16 11:35:40,159 INFO L137 encePairwiseOnDemand]: 73/78 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2022-09-16 11:35:40,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 71 transitions, 176 flow [2022-09-16 11:35:40,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:35:40,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:35:40,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2022-09-16 11:35:40,161 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8653846153846154 [2022-09-16 11:35:40,161 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 270 transitions. [2022-09-16 11:35:40,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 270 transitions. [2022-09-16 11:35:40,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:40,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 270 transitions. [2022-09-16 11:35:40,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 67.5) internal successors, (270), 4 states have internal predecessors, (270), 0 states have call successors, (0), 0 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 11:35:40,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 0 states have call successors, (0), 0 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 11:35:40,164 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 0 states have call successors, (0), 0 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 11:35:40,165 INFO L175 Difference]: Start difference. First operand has 81 places, 71 transitions, 162 flow. Second operand 4 states and 270 transitions. [2022-09-16 11:35:40,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 71 transitions, 176 flow [2022-09-16 11:35:40,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 71 transitions, 169 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:35:40,166 INFO L231 Difference]: Finished difference. Result has 79 places, 0 transitions, 0 flow [2022-09-16 11:35:40,167 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=79, PETRI_TRANSITIONS=0} [2022-09-16 11:35:40,168 INFO L287 CegarLoopForPetriNet]: 81 programPoint places, -2 predicate places. [2022-09-16 11:35:40,168 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 0 transitions, 0 flow [2022-09-16 11:35:40,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 0 states have call successors, (0), 0 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 11:35:40,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-09-16 11:35:40,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-09-16 11:35:40,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-09-16 11:35:40,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-09-16 11:35:40,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-09-16 11:35:40,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-09-16 11:35:40,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-09-16 11:35:40,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-09-16 11:35:40,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-09-16 11:35:40,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-09-16 11:35:40,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:35:40,174 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-09-16 11:35:40,180 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:35:40,180 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:35:40,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:35:40 BasicIcfg [2022-09-16 11:35:40,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:35:40,192 INFO L158 Benchmark]: Toolchain (without parser) took 2145.42ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 130.5MB in the beginning and 174.9MB in the end (delta: -44.3MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:35:40,192 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 188.7MB. Free memory is still 148.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:35:40,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.80ms. Allocated memory is still 188.7MB. Free memory was 130.2MB in the beginning and 154.2MB in the end (delta: -24.0MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. [2022-09-16 11:35:40,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.95ms. Allocated memory is still 188.7MB. Free memory was 154.2MB in the beginning and 152.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:35:40,197 INFO L158 Benchmark]: Boogie Preprocessor took 32.34ms. Allocated memory is still 188.7MB. Free memory was 152.3MB in the beginning and 150.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 11:35:40,198 INFO L158 Benchmark]: RCFGBuilder took 409.09ms. Allocated memory is still 188.7MB. Free memory was 150.8MB in the beginning and 138.0MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-09-16 11:35:40,199 INFO L158 Benchmark]: TraceAbstraction took 1061.53ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 137.2MB in the beginning and 174.9MB in the end (delta: -37.7MB). Peak memory consumption was 858.5kB. Max. memory is 8.0GB. [2022-09-16 11:35:40,207 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 188.7MB. Free memory is still 148.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 566.80ms. Allocated memory is still 188.7MB. Free memory was 130.2MB in the beginning and 154.2MB in the end (delta: -24.0MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 68.95ms. Allocated memory is still 188.7MB. Free memory was 154.2MB in the beginning and 152.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.34ms. Allocated memory is still 188.7MB. Free memory was 152.3MB in the beginning and 150.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 409.09ms. Allocated memory is still 188.7MB. Free memory was 150.8MB in the beginning and 138.0MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1061.53ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 137.2MB in the beginning and 174.9MB in the end (delta: -37.7MB). Peak memory consumption was 858.5kB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 732]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 732]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 749]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 749]: 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 5 procedures, 97 locations, 10 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: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.2s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 261 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:35:40,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...