/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/mix023_power.opt_pso.opt_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:25:26,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:25:26,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:25:26,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:25:26,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:25:26,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:25:26,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:25:26,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:25:26,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:25:26,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:25:26,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:25:26,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:25:26,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:25:26,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:25:26,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:25:26,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:25:26,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:25:26,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:25:26,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:25:26,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:25:26,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:25:26,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:25:26,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:25:26,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:25:26,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 10:25:26,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:25:26,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:25:26,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:25:26,952 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 10:25:26,970 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:25:26,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:25:26,971 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:25:26,971 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:25:26,972 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:25:26,972 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:25:26,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:25:26,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:25:26,973 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:25:26,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:25:26,973 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:25:26,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:25:26,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:25:26,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:25:26,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:25:26,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:25:26,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:25:26,974 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:25:26,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:25:26,975 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:25:26,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:25:26,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:25:26,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:25:26,976 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:25:26,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:25:26,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:25:26,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:25:26,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:25:26,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:25:26,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:25:26,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:25:26,977 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:25:26,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:25:26,977 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:25:27,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:25:27,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:25:27,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:25:27,232 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:25:27,233 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:25:27,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix023_power.opt_pso.opt_rmo.opt.i [2022-09-16 10:25:27,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a27e48d77/cd0ff1953fe643629a0223514aa01377/FLAG446f11406 [2022-09-16 10:25:27,752 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:25:27,753 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix023_power.opt_pso.opt_rmo.opt.i [2022-09-16 10:25:27,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a27e48d77/cd0ff1953fe643629a0223514aa01377/FLAG446f11406 [2022-09-16 10:25:28,088 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a27e48d77/cd0ff1953fe643629a0223514aa01377 [2022-09-16 10:25:28,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:25:28,091 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:25:28,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:25:28,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:25:28,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:25:28,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:25:28" (1/1) ... [2022-09-16 10:25:28,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d491f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:25:28, skipping insertion in model container [2022-09-16 10:25:28,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:25:28" (1/1) ... [2022-09-16 10:25:28,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:25:28,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:25:28,338 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/mix023_power.opt_pso.opt_rmo.opt.i[966,979] [2022-09-16 10:25:28,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:25:28,554 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:25:28,565 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/mix023_power.opt_pso.opt_rmo.opt.i[966,979] [2022-09-16 10:25:28,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:25:28,662 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:25:28,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:25:28 WrapperNode [2022-09-16 10:25:28,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:25:28,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:25:28,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:25:28,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:25:28,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:25:28" (1/1) ... [2022-09-16 10:25:28,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:25:28" (1/1) ... [2022-09-16 10:25:28,739 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 195 [2022-09-16 10:25:28,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:25:28,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:25:28,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:25:28,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:25:28,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:25:28" (1/1) ... [2022-09-16 10:25:28,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:25:28" (1/1) ... [2022-09-16 10:25:28,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:25:28" (1/1) ... [2022-09-16 10:25:28,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:25:28" (1/1) ... [2022-09-16 10:25:28,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:25:28" (1/1) ... [2022-09-16 10:25:28,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:25:28" (1/1) ... [2022-09-16 10:25:28,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:25:28" (1/1) ... [2022-09-16 10:25:28,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:25:28,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:25:28,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:25:28,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:25:28,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:25:28" (1/1) ... [2022-09-16 10:25:28,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:25:28,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:25:28,824 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 10:25:28,850 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 10:25:28,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:25:28,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:25:28,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:25:28,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:25:28,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:25:28,871 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 10:25:28,871 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 10:25:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 10:25:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 10:25:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 10:25:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 10:25:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 10:25:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 10:25:28,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:25:28,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:25:28,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:25:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:25:28,874 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 10:25:29,067 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:25:29,069 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:25:29,542 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:25:29,813 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:25:29,813 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 10:25:29,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:25:29 BoogieIcfgContainer [2022-09-16 10:25:29,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:25:29,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:25:29,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:25:29,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:25:29,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:25:28" (1/3) ... [2022-09-16 10:25:29,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e65391e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:25:29, skipping insertion in model container [2022-09-16 10:25:29,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:25:28" (2/3) ... [2022-09-16 10:25:29,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e65391e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:25:29, skipping insertion in model container [2022-09-16 10:25:29,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:25:29" (3/3) ... [2022-09-16 10:25:29,823 INFO L112 eAbstractionObserver]: Analyzing ICFG mix023_power.opt_pso.opt_rmo.opt.i [2022-09-16 10:25:29,830 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:25:29,837 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:25:29,837 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 10:25:29,837 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:25:29,910 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 10:25:29,942 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 154 places, 143 transitions, 306 flow [2022-09-16 10:25:38,925 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 331068 states, 330988 states have (on average 4.603725814833166) internal successors, (1523778), 331067 states have internal predecessors, (1523778), 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 10:25:38,962 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:25:38,969 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;@2d53019a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:25:38,969 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 10:25:39,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 331068 states, 330988 states have (on average 4.603725814833166) internal successors, (1523778), 331067 states have internal predecessors, (1523778), 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 10:25:39,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-09-16 10:25:39,590 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:25:39,590 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 10:25:39,591 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 10:25:39,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:25:39,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1215366542, now seen corresponding path program 1 times [2022-09-16 10:25:39,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:25:39,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83630561] [2022-09-16 10:25:39,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:25:39,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:25:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:25:39,856 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 10:25:39,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:25:39,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83630561] [2022-09-16 10:25:39,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83630561] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:25:39,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:25:39,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:25:39,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589162294] [2022-09-16 10:25:39,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:25:39,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:25:39,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:25:39,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:25:39,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:25:41,469 INFO L87 Difference]: Start difference. First operand has 331068 states, 330988 states have (on average 4.603725814833166) internal successors, (1523778), 331067 states have internal predecessors, (1523778), 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 10:25:47,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:25:47,003 INFO L93 Difference]: Finished difference Result 263659 states and 1174535 transitions. [2022-09-16 10:25:47,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:25:47,024 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 10:25:47,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:25:50,391 INFO L225 Difference]: With dead ends: 263659 [2022-09-16 10:25:50,391 INFO L226 Difference]: Without dead ends: 263659 [2022-09-16 10:25:50,393 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 10:25:50,396 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 10:25:50,397 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 10:25:51,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263659 states. [2022-09-16 10:26:03,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263659 to 263659. [2022-09-16 10:26:03,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263659 states, 263467 states have (on average 4.4579966371500035) internal successors, (1174535), 263658 states have internal predecessors, (1174535), 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 10:26:06,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263659 states to 263659 states and 1174535 transitions. [2022-09-16 10:26:06,910 INFO L78 Accepts]: Start accepts. Automaton has 263659 states and 1174535 transitions. Word has length 52 [2022-09-16 10:26:06,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:26:06,912 INFO L495 AbstractCegarLoop]: Abstraction has 263659 states and 1174535 transitions. [2022-09-16 10:26:06,913 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 10:26:06,913 INFO L276 IsEmpty]: Start isEmpty. Operand 263659 states and 1174535 transitions. [2022-09-16 10:26:06,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-09-16 10:26:06,934 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:26:06,935 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] [2022-09-16 10:26:06,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:26:06,935 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 10:26:06,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:26:06,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1581675231, now seen corresponding path program 1 times [2022-09-16 10:26:06,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:26:06,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018255324] [2022-09-16 10:26:06,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:26:06,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:26:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:26:07,095 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 10:26:07,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:26:07,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018255324] [2022-09-16 10:26:07,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018255324] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:26:07,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:26:07,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:26:07,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211022116] [2022-09-16 10:26:07,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:26:07,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:26:07,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:26:07,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:26:07,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:26:07,098 INFO L87 Difference]: Start difference. First operand 263659 states and 1174535 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 10:26:10,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:26:10,960 INFO L93 Difference]: Finished difference Result 240373 states and 1029555 transitions. [2022-09-16 10:26:10,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:26:10,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 64 [2022-09-16 10:26:10,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:26:14,968 INFO L225 Difference]: With dead ends: 240373 [2022-09-16 10:26:14,969 INFO L226 Difference]: Without dead ends: 240373 [2022-09-16 10:26:14,970 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 10:26:14,971 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 179 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 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 10:26:14,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 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 10:26:16,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240373 states. [2022-09-16 10:26:28,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240373 to 231733. [2022-09-16 10:26:29,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231733 states, 231625 states have (on average 4.349103076092822) internal successors, (1007361), 231732 states have internal predecessors, (1007361), 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 10:26:32,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231733 states to 231733 states and 1007361 transitions. [2022-09-16 10:26:32,756 INFO L78 Accepts]: Start accepts. Automaton has 231733 states and 1007361 transitions. Word has length 64 [2022-09-16 10:26:32,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:26:32,758 INFO L495 AbstractCegarLoop]: Abstraction has 231733 states and 1007361 transitions. [2022-09-16 10:26:32,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 10:26:32,759 INFO L276 IsEmpty]: Start isEmpty. Operand 231733 states and 1007361 transitions. [2022-09-16 10:26:32,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-09-16 10:26:32,760 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:26:32,761 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] [2022-09-16 10:26:32,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:26:32,761 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 10:26:32,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:26:32,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1581675232, now seen corresponding path program 1 times [2022-09-16 10:26:32,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:26:32,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891549563] [2022-09-16 10:26:32,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:26:32,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:26:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:26:32,915 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 10:26:32,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:26:32,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891549563] [2022-09-16 10:26:32,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891549563] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:26:32,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:26:32,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:26:32,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753407641] [2022-09-16 10:26:32,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:26:32,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:26:32,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:26:32,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:26:32,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:26:32,919 INFO L87 Difference]: Start difference. First operand 231733 states and 1007361 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 10:26:36,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:26:36,248 INFO L93 Difference]: Finished difference Result 152710 states and 671827 transitions. [2022-09-16 10:26:36,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:26:36,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 64 [2022-09-16 10:26:36,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:26:38,711 INFO L225 Difference]: With dead ends: 152710 [2022-09-16 10:26:38,711 INFO L226 Difference]: Without dead ends: 152710 [2022-09-16 10:26:38,712 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 10:26:38,728 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 134 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 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 10:26:38,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 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 10:26:39,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152710 states. [2022-09-16 10:26:46,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152710 to 152710. [2022-09-16 10:26:47,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152710 states, 152680 states have (on average 4.4002292376211685) internal successors, (671827), 152709 states have internal predecessors, (671827), 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)