/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/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:31:12,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:31:12,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:31:12,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:31:12,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:31:12,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:31:12,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:31:12,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:31:12,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:31:12,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:31:12,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:31:12,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:31:12,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:31:12,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:31:12,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:31:12,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:31:12,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:31:12,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:31:12,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:31:12,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:31:12,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:31:12,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:31:12,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:31:12,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:31:12,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 10:31:12,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:31:12,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:31:12,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:31:12,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:31:12,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:31:12,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:31:12,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:31:12,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:31:12,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:31:12,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:31:12,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:31:12,943 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 10:31:12,974 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:31:12,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:31:12,974 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:31:12,974 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:31:12,975 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:31:12,975 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:31:12,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:31:12,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:31:12,979 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:31:12,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:31:12,979 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:31:12,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:31:12,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:31:12,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:31:12,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:31:12,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:31:12,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:31:12,980 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:31:12,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:31:12,980 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:31:12,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:31:12,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:31:12,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:31:12,981 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:31:12,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:31:12,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:31:12,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:31:12,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:31:12,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:31:12,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:31:12,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:31:12,982 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:31:12,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:31:12,982 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:31:13,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:31:13,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:31:13,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:31:13,203 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:31:13,204 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:31:13,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-09-16 10:31:13,253 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9813f44dc/a8a1336ab2f046dbb7d06beaba17d6f9/FLAG43f139f78 [2022-09-16 10:31:13,645 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:31:13,645 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-09-16 10:31:13,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9813f44dc/a8a1336ab2f046dbb7d06beaba17d6f9/FLAG43f139f78 [2022-09-16 10:31:13,672 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9813f44dc/a8a1336ab2f046dbb7d06beaba17d6f9 [2022-09-16 10:31:13,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:31:13,675 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:31:13,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:31:13,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:31:13,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:31:13,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:31:13" (1/1) ... [2022-09-16 10:31:13,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1e2f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:13, skipping insertion in model container [2022-09-16 10:31:13,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:31:13" (1/1) ... [2022-09-16 10:31:13,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:31:13,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:31:13,860 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/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-09-16 10:31:13,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:31:13,994 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:31:14,003 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/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-09-16 10:31:14,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:31:14,075 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:31:14,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:14 WrapperNode [2022-09-16 10:31:14,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:31:14,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:31:14,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:31:14,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:31:14,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:14" (1/1) ... [2022-09-16 10:31:14,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:14" (1/1) ... [2022-09-16 10:31:14,120 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 299 [2022-09-16 10:31:14,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:31:14,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:31:14,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:31:14,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:31:14,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:14" (1/1) ... [2022-09-16 10:31:14,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:14" (1/1) ... [2022-09-16 10:31:14,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:14" (1/1) ... [2022-09-16 10:31:14,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:14" (1/1) ... [2022-09-16 10:31:14,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:14" (1/1) ... [2022-09-16 10:31:14,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:14" (1/1) ... [2022-09-16 10:31:14,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:14" (1/1) ... [2022-09-16 10:31:14,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:31:14,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:31:14,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:31:14,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:31:14,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:14" (1/1) ... [2022-09-16 10:31:14,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:31:14,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:31:14,207 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 10:31:14,225 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 10:31:14,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:31:14,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:31:14,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:31:14,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:31:14,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:31:14,240 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 10:31:14,240 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 10:31:14,241 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 10:31:14,241 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 10:31:14,241 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 10:31:14,242 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 10:31:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 10:31:14,242 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 10:31:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:31:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:31:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:31:14,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:31:14,243 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 10:31:14,366 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:31:14,367 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:31:14,830 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:31:15,080 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:31:15,081 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 10:31:15,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:31:15 BoogieIcfgContainer [2022-09-16 10:31:15,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:31:15,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:31:15,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:31:15,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:31:15,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:31:13" (1/3) ... [2022-09-16 10:31:15,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440fcd5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:31:15, skipping insertion in model container [2022-09-16 10:31:15,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:31:14" (2/3) ... [2022-09-16 10:31:15,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440fcd5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:31:15, skipping insertion in model container [2022-09-16 10:31:15,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:31:15" (3/3) ... [2022-09-16 10:31:15,090 INFO L112 eAbstractionObserver]: Analyzing ICFG mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-09-16 10:31:15,098 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:31:15,105 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:31:15,105 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 10:31:15,105 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:31:15,171 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 10:31:15,197 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 153 places, 142 transitions, 304 flow [2022-09-16 10:31:23,297 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 324434 states, 324354 states have (on average 4.601706777163223) internal successors, (1492582), 324433 states have internal predecessors, (1492582), 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 10:31:23,345 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:31:23,350 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;@8f4652f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:31:23,350 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 10:31:23,942 INFO L276 IsEmpty]: Start isEmpty. Operand has 324434 states, 324354 states have (on average 4.601706777163223) internal successors, (1492582), 324433 states have internal predecessors, (1492582), 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 10:31:23,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 10:31:23,948 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:31:23,949 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] [2022-09-16 10:31:23,949 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 10:31:23,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:31:23,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1076838397, now seen corresponding path program 1 times [2022-09-16 10:31:23,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:31:23,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023837650] [2022-09-16 10:31:23,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:31:23,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:31:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:31:24,202 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 10:31:24,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:31:24,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023837650] [2022-09-16 10:31:24,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023837650] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:31:24,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:31:24,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:31:24,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992093289] [2022-09-16 10:31:24,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:31:24,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:31:24,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:31:24,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:31:24,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:31:24,900 INFO L87 Difference]: Start difference. First operand has 324434 states, 324354 states have (on average 4.601706777163223) internal successors, (1492582), 324433 states have internal predecessors, (1492582), 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 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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 10:31:30,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:31:30,022 INFO L93 Difference]: Finished difference Result 258781 states and 1152215 transitions. [2022-09-16 10:31:30,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:31:30,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2022-09-16 10:31:30,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:31:33,391 INFO L225 Difference]: With dead ends: 258781 [2022-09-16 10:31:33,397 INFO L226 Difference]: Without dead ends: 258781 [2022-09-16 10:31:33,398 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 10:31:33,402 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 65 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 192 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 10:31:33,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 192 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:31:34,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258781 states. [2022-09-16 10:31:44,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258781 to 258781. [2022-09-16 10:31:45,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258781 states, 258589 states have (on average 4.4557773145802795) internal successors, (1152215), 258780 states have internal predecessors, (1152215), 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 10:31:48,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258781 states to 258781 states and 1152215 transitions. [2022-09-16 10:31:48,054 INFO L78 Accepts]: Start accepts. Automaton has 258781 states and 1152215 transitions. Word has length 51 [2022-09-16 10:31:48,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:31:48,054 INFO L495 AbstractCegarLoop]: Abstraction has 258781 states and 1152215 transitions. [2022-09-16 10:31:48,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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 10:31:48,055 INFO L276 IsEmpty]: Start isEmpty. Operand 258781 states and 1152215 transitions. [2022-09-16 10:31:48,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-09-16 10:31:48,057 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:31:48,057 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] [2022-09-16 10:31:48,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:31:48,058 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 10:31:48,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:31:48,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1321682515, now seen corresponding path program 1 times [2022-09-16 10:31:48,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:31:48,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12806191] [2022-09-16 10:31:48,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:31:48,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:31:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:31:48,157 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 10:31:48,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:31:48,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12806191] [2022-09-16 10:31:48,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12806191] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:31:48,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:31:48,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:31:48,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873976123] [2022-09-16 10:31:48,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:31:48,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:31:48,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:31:48,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:31:48,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:31:48,162 INFO L87 Difference]: Start difference. First operand 258781 states and 1152215 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 10:31:52,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:31:52,125 INFO L93 Difference]: Finished difference Result 235921 states and 1009169 transitions. [2022-09-16 10:31:52,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:31:52,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 62 [2022-09-16 10:31:52,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:31:55,819 INFO L225 Difference]: With dead ends: 235921 [2022-09-16 10:31:55,819 INFO L226 Difference]: Without dead ends: 235921 [2022-09-16 10:31:55,819 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 10:31:55,820 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 176 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 261 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 10:31:55,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 261 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:31:57,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235921 states. [2022-09-16 10:32:07,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235921 to 227281. [2022-09-16 10:32:08,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227281 states, 227173 states have (on average 4.344596408904227) internal successors, (986975), 227280 states have internal predecessors, (986975), 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 10:32:11,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227281 states to 227281 states and 986975 transitions. [2022-09-16 10:32:11,700 INFO L78 Accepts]: Start accepts. Automaton has 227281 states and 986975 transitions. Word has length 62 [2022-09-16 10:32:11,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:32:11,702 INFO L495 AbstractCegarLoop]: Abstraction has 227281 states and 986975 transitions. [2022-09-16 10:32:11,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 10:32:11,702 INFO L276 IsEmpty]: Start isEmpty. Operand 227281 states and 986975 transitions. [2022-09-16 10:32:11,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-09-16 10:32:11,709 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:32:11,710 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] [2022-09-16 10:32:11,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:32:11,711 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 10:32:11,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:32:11,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1321682514, now seen corresponding path program 1 times [2022-09-16 10:32:11,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:32:11,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920222689] [2022-09-16 10:32:11,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:32:11,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:32:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:32:11,882 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 10:32:11,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:32:11,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920222689] [2022-09-16 10:32:11,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920222689] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:32:11,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:32:11,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:32:11,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104906136] [2022-09-16 10:32:11,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:32:11,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:32:11,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:32:11,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:32:11,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:32:11,884 INFO L87 Difference]: Start difference. First operand 227281 states and 986975 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 10:32:14,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:32:14,456 INFO L93 Difference]: Finished difference Result 148684 states and 653375 transitions. [2022-09-16 10:32:14,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:32:14,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 62 [2022-09-16 10:32:14,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:32:16,628 INFO L225 Difference]: With dead ends: 148684 [2022-09-16 10:32:16,628 INFO L226 Difference]: Without dead ends: 148684 [2022-09-16 10:32:16,629 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 10:32:16,634 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 135 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:32:16,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 351 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:32:17,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148684 states. [2022-09-16 10:32:23,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148684 to 148684. [2022-09-16 10:32:23,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148684 states, 148654 states have (on average 4.395273588332638) internal successors, (653375), 148683 states have internal predecessors, (653375), 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)