/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:35:33,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:35:33,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:35:33,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 11:35:33,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:35:33,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:35:33,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:35:33,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:35:33,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:35:33,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:35:33,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:35:33,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:35:33,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:35:33,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:35:33,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:35:33,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:35:33,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:35:33,235 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:35:33,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:35:33,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:35:33,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:35:33,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:35:33,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:35:33,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:35:33,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:35:33,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:35:33,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:35:33,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:35:33,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:35:33,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:35:33,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:35:33,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:35:33,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:35:33,251 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:35:33,282 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:35:33,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:35:33,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:35:33,284 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:35:33,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:35:33,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:35:33,285 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:35:33,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:35:33,285 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:35:33,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:35:33,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:35:33,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:35:33,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:35:33,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:35:33,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:35:33,287 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:35:33,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:35:33,287 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:35:33,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:35:33,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:35:33,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:35:33,287 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:35:33,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:35:33,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:33,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:35:33,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:35:33,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:35:33,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:35:33,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:35:33,289 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:35:33,289 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:35:33,290 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:35:33,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:35:33,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:35:33,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:35:33,525 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:35:33,525 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:35:33,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-09-16 11:35:33,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/840495605/eb84c8ad2b0e47ef82192acd60fe46f9/FLAGc9b6e1148 [2022-09-16 11:35:34,021 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:35:34,022 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-09-16 11:35:34,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/840495605/eb84c8ad2b0e47ef82192acd60fe46f9/FLAGc9b6e1148 [2022-09-16 11:35:34,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/840495605/eb84c8ad2b0e47ef82192acd60fe46f9 [2022-09-16 11:35:34,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:35:34,376 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:35:34,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:34,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:35:34,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:35:34,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:34" (1/1) ... [2022-09-16 11:35:34,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c377486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:34, skipping insertion in model container [2022-09-16 11:35:34,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:34" (1/1) ... [2022-09-16 11:35:34,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:35:34,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:35:34,608 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/safe033_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1039,1052] [2022-09-16 11:35:34,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:34,812 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:35:34,829 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/safe033_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1039,1052] [2022-09-16 11:35:34,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:34,895 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:35:34,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:34 WrapperNode [2022-09-16 11:35:34,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:34,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:34,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:35:34,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:35:34,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:34" (1/1) ... [2022-09-16 11:35:34,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:34" (1/1) ... [2022-09-16 11:35:34,968 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 162 [2022-09-16 11:35:34,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:34,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:35:34,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:35:34,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:35:34,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:34" (1/1) ... [2022-09-16 11:35:34,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:34" (1/1) ... [2022-09-16 11:35:34,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:34" (1/1) ... [2022-09-16 11:35:34,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:34" (1/1) ... [2022-09-16 11:35:34,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:34" (1/1) ... [2022-09-16 11:35:34,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:34" (1/1) ... [2022-09-16 11:35:34,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:34" (1/1) ... [2022-09-16 11:35:35,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:35:35,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:35:35,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:35:35,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:35:35,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:34" (1/1) ... [2022-09-16 11:35:35,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:35,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:35:35,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 11:35:35,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 11:35:35,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:35:35,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:35:35,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:35:35,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:35:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:35:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:35:35,106 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:35:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:35:35,106 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:35:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:35:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:35:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:35:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:35:35,108 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:35:35,282 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:35:35,283 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:35:35,780 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:35:36,179 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:35:36,179 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:35:36,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:36 BoogieIcfgContainer [2022-09-16 11:35:36,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:35:36,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:35:36,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:35:36,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:35:36,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:35:34" (1/3) ... [2022-09-16 11:35:36,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bcab9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:36, skipping insertion in model container [2022-09-16 11:35:36,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:34" (2/3) ... [2022-09-16 11:35:36,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bcab9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:36, skipping insertion in model container [2022-09-16 11:35:36,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:36" (3/3) ... [2022-09-16 11:35:36,193 INFO L112 eAbstractionObserver]: Analyzing ICFG safe033_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-09-16 11:35:36,214 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:35:36,214 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-09-16 11:35:36,214 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:35:36,278 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:35:36,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 95 transitions, 200 flow [2022-09-16 11:35:36,384 INFO L130 PetriNetUnfolder]: 2/93 cut-off events. [2022-09-16 11:35:36,385 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:36,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2022-09-16 11:35:36,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 95 transitions, 200 flow [2022-09-16 11:35:36,392 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 93 transitions, 192 flow [2022-09-16 11:35:36,407 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:35:36,415 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@69b5dd1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:35:36,415 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-09-16 11:35:36,435 INFO L130 PetriNetUnfolder]: 0/46 cut-off events. [2022-09-16 11:35:36,435 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:36,435 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:36,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:36,436 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:35:36,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:36,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1171119704, now seen corresponding path program 1 times [2022-09-16 11:35:36,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:36,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791583672] [2022-09-16 11:35:36,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:36,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:36,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:36,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:36,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791583672] [2022-09-16 11:35:36,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791583672] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:36,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:36,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:35:36,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212839656] [2022-09-16 11:35:36,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:36,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:35:36,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:36,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:35:36,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:35:36,806 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 95 [2022-09-16 11:35:36,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 93 transitions, 192 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:36,810 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:36,810 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 95 [2022-09-16 11:35:36,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:37,001 INFO L130 PetriNetUnfolder]: 50/255 cut-off events. [2022-09-16 11:35:37,002 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-09-16 11:35:37,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 255 events. 50/255 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 930 event pairs, 29 based on Foata normal form. 12/237 useless extension candidates. Maximal degree in co-relation 322. Up to 65 conditions per place. [2022-09-16 11:35:37,009 INFO L137 encePairwiseOnDemand]: 86/95 looper letters, 17 selfloop transitions, 3 changer transitions 2/98 dead transitions. [2022-09-16 11:35:37,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 98 transitions, 249 flow [2022-09-16 11:35:37,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:35:37,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:35:37,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2022-09-16 11:35:37,029 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9263157894736842 [2022-09-16 11:35:37,029 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2022-09-16 11:35:37,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2022-09-16 11:35:37,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:37,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2022-09-16 11:35:37,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:37,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:37,052 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:37,053 INFO L175 Difference]: Start difference. First operand has 98 places, 93 transitions, 192 flow. Second operand 3 states and 264 transitions. [2022-09-16 11:35:37,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 98 transitions, 249 flow [2022-09-16 11:35:37,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 98 transitions, 246 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:35:37,061 INFO L231 Difference]: Finished difference. Result has 98 places, 90 transitions, 201 flow [2022-09-16 11:35:37,063 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=98, PETRI_TRANSITIONS=90} [2022-09-16 11:35:37,069 INFO L287 CegarLoopForPetriNet]: 98 programPoint places, 0 predicate places. [2022-09-16 11:35:37,070 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 90 transitions, 201 flow [2022-09-16 11:35:37,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:37,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:37,070 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:37,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:35:37,071 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:35:37,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:37,072 INFO L85 PathProgramCache]: Analyzing trace with hash 656068069, now seen corresponding path program 1 times [2022-09-16 11:35:37,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:37,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617068014] [2022-09-16 11:35:37,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:37,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:37,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:37,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:37,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617068014] [2022-09-16 11:35:37,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617068014] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:37,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:37,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:35:37,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447715954] [2022-09-16 11:35:37,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:37,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:35:37,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:37,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:35:37,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:35:37,213 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 95 [2022-09-16 11:35:37,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 90 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:37,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:37,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 95 [2022-09-16 11:35:37,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:37,320 INFO L130 PetriNetUnfolder]: 41/231 cut-off events. [2022-09-16 11:35:37,323 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-09-16 11:35:37,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 231 events. 41/231 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 763 event pairs, 24 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 318. Up to 46 conditions per place. [2022-09-16 11:35:37,329 INFO L137 encePairwiseOnDemand]: 90/95 looper letters, 15 selfloop transitions, 3 changer transitions 0/94 dead transitions. [2022-09-16 11:35:37,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 94 transitions, 243 flow [2022-09-16 11:35:37,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:35:37,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:35:37,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 332 transitions. [2022-09-16 11:35:37,337 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8736842105263158 [2022-09-16 11:35:37,337 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 332 transitions. [2022-09-16 11:35:37,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 332 transitions. [2022-09-16 11:35:37,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:37,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 332 transitions. [2022-09-16 11:35:37,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:37,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:37,342 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:37,342 INFO L175 Difference]: Start difference. First operand has 98 places, 90 transitions, 201 flow. Second operand 4 states and 332 transitions. [2022-09-16 11:35:37,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 94 transitions, 243 flow [2022-09-16 11:35:37,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 94 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:35:37,346 INFO L231 Difference]: Finished difference. Result has 98 places, 88 transitions, 196 flow [2022-09-16 11:35:37,346 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=98, PETRI_TRANSITIONS=88} [2022-09-16 11:35:37,347 INFO L287 CegarLoopForPetriNet]: 98 programPoint places, 0 predicate places. [2022-09-16 11:35:37,347 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 88 transitions, 196 flow [2022-09-16 11:35:37,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:37,348 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:37,348 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:37,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:35:37,348 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:35:37,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:37,349 INFO L85 PathProgramCache]: Analyzing trace with hash 656068070, now seen corresponding path program 1 times [2022-09-16 11:35:37,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:37,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711073804] [2022-09-16 11:35:37,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:37,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:37,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:37,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:37,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711073804] [2022-09-16 11:35:37,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711073804] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:37,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:37,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:35:37,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167499335] [2022-09-16 11:35:37,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:37,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:35:37,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:37,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:35:37,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:35:37,492 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 95 [2022-09-16 11:35:37,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 88 transitions, 196 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:37,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:37,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 95 [2022-09-16 11:35:37,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:37,572 INFO L130 PetriNetUnfolder]: 37/182 cut-off events. [2022-09-16 11:35:37,573 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-09-16 11:35:37,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 182 events. 37/182 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 580 event pairs, 17 based on Foata normal form. 6/178 useless extension candidates. Maximal degree in co-relation 253. Up to 38 conditions per place. [2022-09-16 11:35:37,574 INFO L137 encePairwiseOnDemand]: 90/95 looper letters, 0 selfloop transitions, 0 changer transitions 92/92 dead transitions. [2022-09-16 11:35:37,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 92 transitions, 234 flow [2022-09-16 11:35:37,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:35:37,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:35:37,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 330 transitions. [2022-09-16 11:35:37,576 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.868421052631579 [2022-09-16 11:35:37,576 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 330 transitions. [2022-09-16 11:35:37,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 330 transitions. [2022-09-16 11:35:37,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:37,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 330 transitions. [2022-09-16 11:35:37,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:37,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:37,579 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:37,579 INFO L175 Difference]: Start difference. First operand has 98 places, 88 transitions, 196 flow. Second operand 4 states and 330 transitions. [2022-09-16 11:35:37,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 92 transitions, 234 flow [2022-09-16 11:35:37,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 92 transitions, 227 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:35:37,583 INFO L231 Difference]: Finished difference. Result has 96 places, 0 transitions, 0 flow [2022-09-16 11:35:37,583 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=96, PETRI_TRANSITIONS=0} [2022-09-16 11:35:37,585 INFO L287 CegarLoopForPetriNet]: 98 programPoint places, -2 predicate places. [2022-09-16 11:35:37,585 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 0 transitions, 0 flow [2022-09-16 11:35:37,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:37,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-09-16 11:35:37,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-09-16 11:35:37,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-09-16 11:35:37,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-09-16 11:35:37,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-09-16 11:35:37,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-09-16 11:35:37,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-09-16 11:35:37,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-09-16 11:35:37,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-09-16 11:35:37,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-09-16 11:35:37,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:35:37,595 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-09-16 11:35:37,603 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:35:37,603 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:35:37,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:35:37 BasicIcfg [2022-09-16 11:35:37,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:35:37,611 INFO L158 Benchmark]: Toolchain (without parser) took 3234.64ms. Allocated memory was 195.0MB in the beginning and 239.1MB in the end (delta: 44.0MB). Free memory was 136.2MB in the beginning and 191.8MB in the end (delta: -55.7MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:35:37,613 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 195.0MB. Free memory was 154.5MB in the beginning and 154.5MB in the end (delta: 76.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:35:37,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.03ms. Allocated memory is still 195.0MB. Free memory was 136.0MB in the beginning and 157.0MB in the end (delta: -21.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-09-16 11:35:37,615 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.13ms. Allocated memory is still 195.0MB. Free memory was 157.0MB in the beginning and 154.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:35:37,615 INFO L158 Benchmark]: Boogie Preprocessor took 32.35ms. Allocated memory is still 195.0MB. Free memory was 154.6MB in the beginning and 152.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:35:37,615 INFO L158 Benchmark]: RCFGBuilder took 1179.12ms. Allocated memory was 195.0MB in the beginning and 239.1MB in the end (delta: 44.0MB). Free memory was 152.6MB in the beginning and 183.2MB in the end (delta: -30.6MB). Peak memory consumption was 52.0MB. Max. memory is 8.0GB. [2022-09-16 11:35:37,616 INFO L158 Benchmark]: TraceAbstraction took 1423.89ms. Allocated memory is still 239.1MB. Free memory was 182.7MB in the beginning and 191.8MB in the end (delta: -9.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:35:37,621 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 195.0MB. Free memory was 154.5MB in the beginning and 154.5MB in the end (delta: 76.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 516.03ms. Allocated memory is still 195.0MB. Free memory was 136.0MB in the beginning and 157.0MB in the end (delta: -21.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 72.13ms. Allocated memory is still 195.0MB. Free memory was 157.0MB in the beginning and 154.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.35ms. Allocated memory is still 195.0MB. Free memory was 154.6MB in the beginning and 152.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1179.12ms. Allocated memory was 195.0MB in the beginning and 239.1MB in the end (delta: 44.0MB). Free memory was 152.6MB in the beginning and 183.2MB in the end (delta: -30.6MB). Peak memory consumption was 52.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1423.89ms. Allocated memory is still 239.1MB. Free memory was 182.7MB in the beginning and 191.8MB in the end (delta: -9.1MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 788]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 788]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 115 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201occurred in iteration=1, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 402 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:35:37,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...