/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-FA-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/mix046.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:31:00,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:31:00,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:31:00,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:31:00,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:31:00,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:31:00,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:31:00,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:31:00,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:31:00,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:31:00,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:31:00,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:31:00,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:31:00,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:31:00,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:31:00,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:31:00,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:31:00,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:31:00,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:31:00,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:31:00,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:31:00,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:31:00,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:31:00,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:31:00,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 10:31:00,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:31:00,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:31:00,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:31:00,786 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-FA-NoLbe.epf [2022-09-16 10:31:00,819 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:31:00,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:31:00,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:31:00,820 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:31:00,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:31:00,821 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:31:00,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:31:00,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:31:00,822 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:31:00,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:31:00,823 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:31:00,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:31:00,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:31:00,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:31:00,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:31:00,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:31:00,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:31:00,824 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:31:00,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:31:00,824 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:31:00,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:31:00,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:31:00,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:31:00,825 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:31:00,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:31:00,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:31:00,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:31:00,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:31:00,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:31:00,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:31:00,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:31:00,826 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:31:00,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:31:00,826 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:31:01,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:31:01,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:31:01,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:31:01,124 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:31:01,125 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:31:01,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix046.opt.i [2022-09-16 10:31:01,191 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05d27d7a4/0f970f5895bd4bd0bb8a5dfca65c3a02/FLAG8dc73130c [2022-09-16 10:31:01,689 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:31:01,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix046.opt.i [2022-09-16 10:31:01,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05d27d7a4/0f970f5895bd4bd0bb8a5dfca65c3a02/FLAG8dc73130c [2022-09-16 10:31:02,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05d27d7a4/0f970f5895bd4bd0bb8a5dfca65c3a02 [2022-09-16 10:31:02,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:31:02,024 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:31:02,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:31:02,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:31:02,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:31:02,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:31:02" (1/1) ... [2022-09-16 10:31:02,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e50c5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:02, skipping insertion in model container [2022-09-16 10:31:02,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:31:02" (1/1) ... [2022-09-16 10:31:02,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:31:02,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:31:02,278 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/mix046.opt.i[944,957] [2022-09-16 10:31:02,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:31:02,470 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:31:02,480 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/mix046.opt.i[944,957] [2022-09-16 10:31:02,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:31:02,572 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:31:02,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:02 WrapperNode [2022-09-16 10:31:02,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:31:02,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:31:02,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:31:02,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:31:02,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:02" (1/1) ... [2022-09-16 10:31:02,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:02" (1/1) ... [2022-09-16 10:31:02,641 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 300 [2022-09-16 10:31:02,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:31:02,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:31:02,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:31:02,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:31:02,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:02" (1/1) ... [2022-09-16 10:31:02,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:02" (1/1) ... [2022-09-16 10:31:02,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:02" (1/1) ... [2022-09-16 10:31:02,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:02" (1/1) ... [2022-09-16 10:31:02,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:02" (1/1) ... [2022-09-16 10:31:02,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:02" (1/1) ... [2022-09-16 10:31:02,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:02" (1/1) ... [2022-09-16 10:31:02,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:31:02,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:31:02,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:31:02,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:31:02,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:02" (1/1) ... [2022-09-16 10:31:02,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:31:02,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:31:02,715 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 10:31:02,728 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 10:31:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:31:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:31:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:31:02,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:31:02,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:31:02,758 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 10:31:02,758 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 10:31:02,763 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 10:31:02,763 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 10:31:02,764 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 10:31:02,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 10:31:02,764 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 10:31:02,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 10:31:02,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:31:02,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:31:02,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:31:02,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:31:02,767 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 10:31:02,974 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:31:02,975 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:31:03,672 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:31:03,966 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:31:03,966 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 10:31:03,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:31:03 BoogieIcfgContainer [2022-09-16 10:31:03,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:31:03,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:31:03,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:31:03,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:31:03,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:31:02" (1/3) ... [2022-09-16 10:31:03,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15890861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:31:03, skipping insertion in model container [2022-09-16 10:31:03,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:02" (2/3) ... [2022-09-16 10:31:03,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15890861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:31:03, skipping insertion in model container [2022-09-16 10:31:03,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:31:03" (3/3) ... [2022-09-16 10:31:03,977 INFO L112 eAbstractionObserver]: Analyzing ICFG mix046.opt.i [2022-09-16 10:31:03,984 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:31:03,993 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:31:03,993 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 10:31:03,993 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:31:04,047 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 10:31:04,074 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 154 places, 143 transitions, 306 flow [2022-09-16 10:31:14,279 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 324435 states, 324355 states have (on average 4.6016956729509335) internal successors, (1492583), 324434 states have internal predecessors, (1492583), 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 10:31:14,336 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:31:14,344 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@3a3935c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:31:14,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 10:31:15,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 324435 states, 324355 states have (on average 4.6016956729509335) internal successors, (1492583), 324434 states have internal predecessors, (1492583), 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 10:31:15,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-09-16 10:31:15,140 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:31:15,141 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:31:15,142 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:31:15,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:31:15,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1558082646, now seen corresponding path program 1 times [2022-09-16 10:31:15,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:31:15,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932042439] [2022-09-16 10:31:15,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:31:15,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:31:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:31:15,450 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 10:31:15,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:31:15,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932042439] [2022-09-16 10:31:15,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932042439] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:31:15,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:31:15,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:31:15,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684137504] [2022-09-16 10:31:15,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:31:15,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:31:15,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:31:15,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:31:15,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:31:16,196 INFO L87 Difference]: Start difference. First operand has 324435 states, 324355 states have (on average 4.6016956729509335) internal successors, (1492583), 324434 states have internal predecessors, (1492583), 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) Second operand has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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 10:31:22,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:31:22,299 INFO L93 Difference]: Finished difference Result 258782 states and 1152216 transitions. [2022-09-16 10:31:22,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:31:22,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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) Word has length 52 [2022-09-16 10:31:22,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:31:26,143 INFO L225 Difference]: With dead ends: 258782 [2022-09-16 10:31:26,143 INFO L226 Difference]: Without dead ends: 258782 [2022-09-16 10:31:26,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:31:26,148 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 65 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:31:26,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 193 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:31:27,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258782 states. [2022-09-16 10:31:40,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258782 to 258782. [2022-09-16 10:31:42,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258782 states, 258590 states have (on average 4.455763950655478) internal successors, (1152216), 258781 states have internal predecessors, (1152216), 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 10:31:45,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258782 states to 258782 states and 1152216 transitions. [2022-09-16 10:31:45,756 INFO L78 Accepts]: Start accepts. Automaton has 258782 states and 1152216 transitions. Word has length 52 [2022-09-16 10:31:45,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:31:45,758 INFO L495 AbstractCegarLoop]: Abstraction has 258782 states and 1152216 transitions. [2022-09-16 10:31:45,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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 10:31:45,759 INFO L276 IsEmpty]: Start isEmpty. Operand 258782 states and 1152216 transitions. [2022-09-16 10:31:45,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 10:31:45,775 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:31:45,775 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:31:45,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:31:45,776 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 10:31:45,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:31:45,777 INFO L85 PathProgramCache]: Analyzing trace with hash -255353131, now seen corresponding path program 1 times [2022-09-16 10:31:45,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:31:45,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854883568] [2022-09-16 10:31:45,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:31:45,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:31:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:31:45,927 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 10:31:45,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:31:45,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854883568] [2022-09-16 10:31:45,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854883568] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:31:45,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:31:45,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:31:45,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580141164] [2022-09-16 10:31:45,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:31:45,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:31:45,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:31:45,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:31:45,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:31:45,932 INFO L87 Difference]: Start difference. First operand 258782 states and 1152216 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 10:31:50,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:31:50,499 INFO L93 Difference]: Finished difference Result 235922 states and 1009170 transitions. [2022-09-16 10:31:50,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:31:50,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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) Word has length 63 [2022-09-16 10:31:50,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:31:55,370 INFO L225 Difference]: With dead ends: 235922 [2022-09-16 10:31:55,371 INFO L226 Difference]: Without dead ends: 235922 [2022-09-16 10:31:55,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:31:55,377 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 181 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:31:55,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 262 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:31:56,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235922 states. [2022-09-16 10:32:10,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235922 to 227282. [2022-09-16 10:32:11,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227282 states, 227174 states have (on average 4.344581686284522) internal successors, (986976), 227281 states have internal predecessors, (986976), 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 10:32:15,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227282 states to 227282 states and 986976 transitions. [2022-09-16 10:32:15,066 INFO L78 Accepts]: Start accepts. Automaton has 227282 states and 986976 transitions. Word has length 63 [2022-09-16 10:32:15,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:32:15,069 INFO L495 AbstractCegarLoop]: Abstraction has 227282 states and 986976 transitions. [2022-09-16 10:32:15,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 10:32:15,081 INFO L276 IsEmpty]: Start isEmpty. Operand 227282 states and 986976 transitions. [2022-09-16 10:32:15,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 10:32:15,085 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:32:15,086 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:32:15,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:32:15,094 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 10:32:15,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:32:15,095 INFO L85 PathProgramCache]: Analyzing trace with hash -255353130, now seen corresponding path program 1 times [2022-09-16 10:32:15,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:32:15,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784910694] [2022-09-16 10:32:15,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:32:15,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:32:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:32:15,261 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 10:32:15,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:32:15,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784910694] [2022-09-16 10:32:15,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784910694] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:32:15,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:32:15,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:32:15,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880691780] [2022-09-16 10:32:15,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:32:15,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:32:15,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:32:15,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:32:15,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:32:15,266 INFO L87 Difference]: Start difference. First operand 227282 states and 986976 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 10:32:18,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:32:18,799 INFO L93 Difference]: Finished difference Result 148685 states and 653376 transitions. [2022-09-16 10:32:18,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:32:18,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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) Word has length 63 [2022-09-16 10:32:18,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:32:21,908 INFO L225 Difference]: With dead ends: 148685 [2022-09-16 10:32:21,908 INFO L226 Difference]: Without dead ends: 148685 [2022-09-16 10:32:21,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:32:21,909 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 135 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:32:21,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 353 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:32:22,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148685 states. [2022-09-16 10:32:30,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148685 to 148685. [2022-09-16 10:32:30,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148685 states, 148655 states have (on average 4.395250748377115) internal successors, (653376), 148684 states have internal predecessors, (653376), 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 10:32:32,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148685 states to 148685 states and 653376 transitions. [2022-09-16 10:32:32,707 INFO L78 Accepts]: Start accepts. Automaton has 148685 states and 653376 transitions. Word has length 63 [2022-09-16 10:32:32,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:32:32,708 INFO L495 AbstractCegarLoop]: Abstraction has 148685 states and 653376 transitions. [2022-09-16 10:32:32,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 10:32:32,708 INFO L276 IsEmpty]: Start isEmpty. Operand 148685 states and 653376 transitions. [2022-09-16 10:32:32,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-09-16 10:32:32,724 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:32:32,724 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:32:32,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:32:32,724 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 10:32:32,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:32:32,725 INFO L85 PathProgramCache]: Analyzing trace with hash -225063867, now seen corresponding path program 1 times [2022-09-16 10:32:32,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:32:32,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839282037] [2022-09-16 10:32:32,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:32:32,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:32:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:32:33,334 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 10:32:33,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:32:33,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839282037] [2022-09-16 10:32:33,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839282037] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:32:33,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:32:33,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:32:33,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5430533] [2022-09-16 10:32:33,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:32:33,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:32:33,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:32:33,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:32:33,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:32:33,336 INFO L87 Difference]: Start difference. First operand 148685 states and 653376 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 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 10:32:35,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:32:35,948 INFO L93 Difference]: Finished difference Result 129488 states and 570972 transitions. [2022-09-16 10:32:35,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:32:35,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 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) Word has length 75 [2022-09-16 10:32:35,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted.