/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/safe027_rmo.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:35:22,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:35:22,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:35:22,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:35:22,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:35:22,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:35:22,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:35:22,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:35:22,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:35:22,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:35:22,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:35:22,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:35:22,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:35:22,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:35:22,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:35:22,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:35:22,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:35:22,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:35:22,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:35:22,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:35:22,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:35:22,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:35:22,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:35:22,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:35:22,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:35:22,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:35:22,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:35:22,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:35:22,243 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 11:35:22,269 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:35:22,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:35:22,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:35:22,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:35:22,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:35:22,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:35:22,270 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:35:22,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:35:22,270 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:35:22,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:35:22,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:35:22,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:35:22,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:35:22,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:35:22,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:35:22,271 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:35:22,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:35:22,271 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:35:22,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:35:22,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:35:22,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:35:22,272 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:35:22,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:35:22,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:22,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:35:22,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:35:22,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:35:22,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:35:22,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:35:22,273 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:35:22,273 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:35:22,273 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:35:22,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:35:22,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:35:22,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:35:22,506 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:35:22,507 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:35:22,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_rmo.i [2022-09-16 11:35:22,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa60d03e5/b9d15bf2f6f24645ad1da6bb04a448dd/FLAG64d5876d0 [2022-09-16 11:35:23,031 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:35:23,032 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_rmo.i [2022-09-16 11:35:23,045 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa60d03e5/b9d15bf2f6f24645ad1da6bb04a448dd/FLAG64d5876d0 [2022-09-16 11:35:23,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa60d03e5/b9d15bf2f6f24645ad1da6bb04a448dd [2022-09-16 11:35:23,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:35:23,379 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:35:23,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:23,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:35:23,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:35:23,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:23" (1/1) ... [2022-09-16 11:35:23,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e954ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:23, skipping insertion in model container [2022-09-16 11:35:23,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:23" (1/1) ... [2022-09-16 11:35:23,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:35:23,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:35:23,597 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/safe027_rmo.i[988,1001] [2022-09-16 11:35:23,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:23,762 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:35:23,774 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/safe027_rmo.i[988,1001] [2022-09-16 11:35:23,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:23,856 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:35:23,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:23 WrapperNode [2022-09-16 11:35:23,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:23,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:23,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:35:23,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:35:23,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:23" (1/1) ... [2022-09-16 11:35:23,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:23" (1/1) ... [2022-09-16 11:35:23,893 INFO L138 Inliner]: procedures = 177, calls = 82, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 168 [2022-09-16 11:35:23,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:23,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:35:23,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:35:23,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:35:23,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:23" (1/1) ... [2022-09-16 11:35:23,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:23" (1/1) ... [2022-09-16 11:35:23,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:23" (1/1) ... [2022-09-16 11:35:23,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:23" (1/1) ... [2022-09-16 11:35:23,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:23" (1/1) ... [2022-09-16 11:35:23,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:23" (1/1) ... [2022-09-16 11:35:23,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:23" (1/1) ... [2022-09-16 11:35:23,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:35:23,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:35:23,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:35:23,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:35:23,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:23" (1/1) ... [2022-09-16 11:35:23,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:23,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:35:23,981 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 11:35:23,999 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 11:35:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:35:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:35:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:35:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:35:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:35:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:35:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:35:24,035 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:35:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:35:24,036 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:35:24,036 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:35:24,036 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:35:24,036 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 11:35:24,037 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 11:35:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:35:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:35:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:35:24,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:35:24,039 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 11:35:24,205 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:35:24,206 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:35:24,705 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:35:25,163 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:35:25,164 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:35:25,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:25 BoogieIcfgContainer [2022-09-16 11:35:25,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:35:25,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:35:25,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:35:25,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:35:25,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:35:23" (1/3) ... [2022-09-16 11:35:25,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ad2e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:25, skipping insertion in model container [2022-09-16 11:35:25,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:23" (2/3) ... [2022-09-16 11:35:25,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ad2e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:25, skipping insertion in model container [2022-09-16 11:35:25,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:25" (3/3) ... [2022-09-16 11:35:25,175 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_rmo.i [2022-09-16 11:35:25,209 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:35:25,209 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 11:35:25,209 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:35:25,283 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:35:25,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 157 transitions, 334 flow [2022-09-16 11:35:25,397 INFO L130 PetriNetUnfolder]: 2/153 cut-off events. [2022-09-16 11:35:25,397 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:25,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 153 events. 2/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2022-09-16 11:35:25,401 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 157 transitions, 334 flow [2022-09-16 11:35:25,409 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 153 transitions, 318 flow [2022-09-16 11:35:25,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:35:25,429 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;@61fda6f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:35:25,430 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 11:35:25,444 INFO L130 PetriNetUnfolder]: 0/73 cut-off events. [2022-09-16 11:35:25,444 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:25,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:25,446 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:25,446 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:35:25,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:25,450 INFO L85 PathProgramCache]: Analyzing trace with hash -591582919, now seen corresponding path program 1 times [2022-09-16 11:35:25,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:25,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391568069] [2022-09-16 11:35:25,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:25,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:25,755 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 11:35:25,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:25,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391568069] [2022-09-16 11:35:25,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391568069] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:25,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:25,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:35:25,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744448745] [2022-09-16 11:35:25,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:25,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:35:25,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:25,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:35:25,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:35:25,799 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 157 [2022-09-16 11:35:25,806 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 153 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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 11:35:25,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:25,807 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 157 [2022-09-16 11:35:25,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:27,270 INFO L130 PetriNetUnfolder]: 3157/11121 cut-off events. [2022-09-16 11:35:27,271 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2022-09-16 11:35:27,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15758 conditions, 11121 events. 3157/11121 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 463. Compared 129555 event pairs, 2352 based on Foata normal form. 574/9440 useless extension candidates. Maximal degree in co-relation 15681. Up to 4404 conditions per place. [2022-09-16 11:35:27,354 INFO L137 encePairwiseOnDemand]: 142/157 looper letters, 31 selfloop transitions, 5 changer transitions 0/163 dead transitions. [2022-09-16 11:35:27,354 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 163 transitions, 419 flow [2022-09-16 11:35:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:35:27,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:35:27,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2022-09-16 11:35:27,365 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9363057324840764 [2022-09-16 11:35:27,367 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 441 transitions. [2022-09-16 11:35:27,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 441 transitions. [2022-09-16 11:35:27,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:27,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 441 transitions. [2022-09-16 11:35:27,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 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 11:35:27,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 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 11:35:27,385 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 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 11:35:27,387 INFO L175 Difference]: Start difference. First operand has 164 places, 153 transitions, 318 flow. Second operand 3 states and 441 transitions. [2022-09-16 11:35:27,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 163 transitions, 419 flow [2022-09-16 11:35:27,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 163 transitions, 412 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:35:27,397 INFO L231 Difference]: Finished difference. Result has 162 places, 154 transitions, 355 flow [2022-09-16 11:35:27,398 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=355, PETRI_PLACES=162, PETRI_TRANSITIONS=154} [2022-09-16 11:35:27,403 INFO L287 CegarLoopForPetriNet]: 164 programPoint places, -2 predicate places. [2022-09-16 11:35:27,404 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 154 transitions, 355 flow [2022-09-16 11:35:27,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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 11:35:27,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:27,404 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, 1, 1, 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 11:35:27,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:35:27,405 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 11:35:27,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:27,405 INFO L85 PathProgramCache]: Analyzing trace with hash 493261140, now seen corresponding path program 1 times [2022-09-16 11:35:27,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:27,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947062401] [2022-09-16 11:35:27,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:27,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:27,538 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 11:35:27,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:27,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947062401] [2022-09-16 11:35:27,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947062401] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:27,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:27,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:35:27,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921104055] [2022-09-16 11:35:27,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:27,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:35:27,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:27,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:35:27,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:35:27,545 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 157 [2022-09-16 11:35:27,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 154 transitions, 355 flow. Second operand has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 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 11:35:27,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:27,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 157 [2022-09-16 11:35:27,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:28,280 INFO L130 PetriNetUnfolder]: 1809/6017 cut-off events. [2022-09-16 11:35:28,280 INFO L131 PetriNetUnfolder]: For 257/257 co-relation queries the response was YES. [2022-09-16 11:35:28,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10548 conditions, 6017 events. 1809/6017 cut-off events. For 257/257 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 60614 event pairs, 716 based on Foata normal form. 0/4965 useless extension candidates. Maximal degree in co-relation 10472. Up to 1542 conditions per place. [2022-09-16 11:35:28,333 INFO L137 encePairwiseOnDemand]: 144/157 looper letters, 39 selfloop transitions, 13 changer transitions 0/179 dead transitions. [2022-09-16 11:35:28,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 179 transitions, 535 flow [2022-09-16 11:35:28,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:35:28,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:35:28,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 580 transitions. [2022-09-16 11:35:28,336 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9235668789808917 [2022-09-16 11:35:28,336 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 580 transitions. [2022-09-16 11:35:28,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 580 transitions. [2022-09-16 11:35:28,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:28,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 580 transitions. [2022-09-16 11:35:28,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 11:35:28,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 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 11:35:28,339 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 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 11:35:28,339 INFO L175 Difference]: Start difference. First operand has 162 places, 154 transitions, 355 flow. Second operand 4 states and 580 transitions. [2022-09-16 11:35:28,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 179 transitions, 535 flow [2022-09-16 11:35:28,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 179 transitions, 530 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:35:28,343 INFO L231 Difference]: Finished difference. Result has 166 places, 162 transitions, 453 flow [2022-09-16 11:35:28,343 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=453, PETRI_PLACES=166, PETRI_TRANSITIONS=162} [2022-09-16 11:35:28,344 INFO L287 CegarLoopForPetriNet]: 164 programPoint places, 2 predicate places. [2022-09-16 11:35:28,344 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 162 transitions, 453 flow [2022-09-16 11:35:28,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 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 11:35:28,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:28,345 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, 1, 1, 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 11:35:28,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:35:28,345 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 11:35:28,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:28,346 INFO L85 PathProgramCache]: Analyzing trace with hash 493261141, now seen corresponding path program 1 times [2022-09-16 11:35:28,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:28,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674623910] [2022-09-16 11:35:28,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:28,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:28,452 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 11:35:28,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:28,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674623910] [2022-09-16 11:35:28,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674623910] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:28,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:28,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:35:28,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595751811] [2022-09-16 11:35:28,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:28,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:35:28,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:28,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:35:28,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:35:28,457 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 157 [2022-09-16 11:35:28,458 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 162 transitions, 453 flow. Second operand has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 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 11:35:28,458 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:28,458 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 157 [2022-09-16 11:35:28,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:28,776 INFO L130 PetriNetUnfolder]: 733/1793 cut-off events. [2022-09-16 11:35:28,776 INFO L131 PetriNetUnfolder]: For 877/877 co-relation queries the response was YES. [2022-09-16 11:35:28,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4223 conditions, 1793 events. 733/1793 cut-off events. For 877/877 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 12375 event pairs, 91 based on Foata normal form. 307/1910 useless extension candidates. Maximal degree in co-relation 4144. Up to 1016 conditions per place. [2022-09-16 11:35:28,791 INFO L137 encePairwiseOnDemand]: 148/157 looper letters, 31 selfloop transitions, 5 changer transitions 0/163 dead transitions. [2022-09-16 11:35:28,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 163 transitions, 493 flow [2022-09-16 11:35:28,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:35:28,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:35:28,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 560 transitions. [2022-09-16 11:35:28,793 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.89171974522293 [2022-09-16 11:35:28,794 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 560 transitions. [2022-09-16 11:35:28,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 560 transitions. [2022-09-16 11:35:28,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:28,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 560 transitions. [2022-09-16 11:35:28,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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 11:35:28,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 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 11:35:28,797 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 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 11:35:28,797 INFO L175 Difference]: Start difference. First operand has 166 places, 162 transitions, 453 flow. Second operand 4 states and 560 transitions. [2022-09-16 11:35:28,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 163 transitions, 493 flow [2022-09-16 11:35:28,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 163 transitions, 470 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-09-16 11:35:28,805 INFO L231 Difference]: Finished difference. Result has 162 places, 154 transitions, 384 flow [2022-09-16 11:35:28,806 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=384, PETRI_PLACES=162, PETRI_TRANSITIONS=154} [2022-09-16 11:35:28,806 INFO L287 CegarLoopForPetriNet]: 164 programPoint places, -2 predicate places. [2022-09-16 11:35:28,807 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 154 transitions, 384 flow [2022-09-16 11:35:28,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 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 11:35:28,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:28,807 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:35:28,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:35:28,808 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:35:28,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:28,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1913408923, now seen corresponding path program 1 times [2022-09-16 11:35:28,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:28,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662361643] [2022-09-16 11:35:28,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:28,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:28,918 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 11:35:28,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:28,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662361643] [2022-09-16 11:35:28,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662361643] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:28,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:28,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:35:28,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061256436] [2022-09-16 11:35:28,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:28,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:35:28,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:28,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:35:28,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:35:28,920 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 157 [2022-09-16 11:35:28,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 154 transitions, 384 flow. Second operand has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 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 11:35:28,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:28,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 157 [2022-09-16 11:35:28,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:29,172 INFO L130 PetriNetUnfolder]: 541/1466 cut-off events. [2022-09-16 11:35:29,173 INFO L131 PetriNetUnfolder]: For 588/588 co-relation queries the response was YES. [2022-09-16 11:35:29,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3000 conditions, 1466 events. 541/1466 cut-off events. For 588/588 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 9687 event pairs, 47 based on Foata normal form. 0/1411 useless extension candidates. Maximal degree in co-relation 2922. Up to 278 conditions per place. [2022-09-16 11:35:29,182 INFO L137 encePairwiseOnDemand]: 148/157 looper letters, 38 selfloop transitions, 13 changer transitions 4/182 dead transitions. [2022-09-16 11:35:29,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 182 transitions, 578 flow [2022-09-16 11:35:29,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:35:29,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:35:29,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 714 transitions. [2022-09-16 11:35:29,184 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9095541401273886 [2022-09-16 11:35:29,184 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 714 transitions. [2022-09-16 11:35:29,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 714 transitions. [2022-09-16 11:35:29,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:29,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 714 transitions. [2022-09-16 11:35:29,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 142.8) internal successors, (714), 5 states have internal predecessors, (714), 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 11:35:29,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 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 11:35:29,188 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 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 11:35:29,188 INFO L175 Difference]: Start difference. First operand has 162 places, 154 transitions, 384 flow. Second operand 5 states and 714 transitions. [2022-09-16 11:35:29,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 182 transitions, 578 flow [2022-09-16 11:35:29,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 182 transitions, 572 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:35:29,195 INFO L231 Difference]: Finished difference. Result has 165 places, 154 transitions, 420 flow [2022-09-16 11:35:29,196 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=420, PETRI_PLACES=165, PETRI_TRANSITIONS=154} [2022-09-16 11:35:29,197 INFO L287 CegarLoopForPetriNet]: 164 programPoint places, 1 predicate places. [2022-09-16 11:35:29,197 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 154 transitions, 420 flow [2022-09-16 11:35:29,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 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 11:35:29,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:29,202 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:35:29,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:35:29,202 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:35:29,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:29,202 INFO L85 PathProgramCache]: Analyzing trace with hash 113987096, now seen corresponding path program 1 times [2022-09-16 11:35:29,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:29,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545888219] [2022-09-16 11:35:29,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:29,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:29,293 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 11:35:29,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:29,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545888219] [2022-09-16 11:35:29,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545888219] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:29,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:29,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:35:29,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548136490] [2022-09-16 11:35:29,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:29,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:35:29,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:29,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:35:29,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:35:29,296 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 157 [2022-09-16 11:35:29,296 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 154 transitions, 420 flow. Second operand has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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 11:35:29,297 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:29,297 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 157 [2022-09-16 11:35:29,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:29,529 INFO L130 PetriNetUnfolder]: 514/1720 cut-off events. [2022-09-16 11:35:29,529 INFO L131 PetriNetUnfolder]: For 1316/1316 co-relation queries the response was YES. [2022-09-16 11:35:29,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3566 conditions, 1720 events. 514/1720 cut-off events. For 1316/1316 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 11972 event pairs, 95 based on Foata normal form. 16/1662 useless extension candidates. Maximal degree in co-relation 3487. Up to 278 conditions per place. [2022-09-16 11:35:29,540 INFO L137 encePairwiseOnDemand]: 148/157 looper letters, 0 selfloop transitions, 0 changer transitions 174/174 dead transitions. [2022-09-16 11:35:29,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 174 transitions, 542 flow [2022-09-16 11:35:29,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:35:29,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:35:29,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 837 transitions. [2022-09-16 11:35:29,542 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8885350318471338 [2022-09-16 11:35:29,542 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 837 transitions. [2022-09-16 11:35:29,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 837 transitions. [2022-09-16 11:35:29,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:29,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 837 transitions. [2022-09-16 11:35:29,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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 11:35:29,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 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 11:35:29,547 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 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 11:35:29,547 INFO L175 Difference]: Start difference. First operand has 165 places, 154 transitions, 420 flow. Second operand 6 states and 837 transitions. [2022-09-16 11:35:29,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 174 transitions, 542 flow [2022-09-16 11:35:29,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 174 transitions, 487 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-09-16 11:35:29,552 INFO L231 Difference]: Finished difference. Result has 160 places, 0 transitions, 0 flow [2022-09-16 11:35:29,552 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=160, PETRI_TRANSITIONS=0} [2022-09-16 11:35:29,553 INFO L287 CegarLoopForPetriNet]: 164 programPoint places, -4 predicate places. [2022-09-16 11:35:29,553 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 0 transitions, 0 flow [2022-09-16 11:35:29,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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 11:35:29,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-09-16 11:35:29,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-09-16 11:35:29,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-09-16 11:35:29,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-09-16 11:35:29,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-09-16 11:35:29,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-09-16 11:35:29,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-09-16 11:35:29,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-09-16 11:35:29,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-09-16 11:35:29,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-09-16 11:35:29,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-09-16 11:35:29,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-09-16 11:35:29,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-09-16 11:35:29,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-09-16 11:35:29,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-09-16 11:35:29,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-09-16 11:35:29,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-09-16 11:35:29,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-09-16 11:35:29,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-09-16 11:35:29,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-09-16 11:35:29,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:35:29,559 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-09-16 11:35:29,564 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:35:29,564 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:35:29,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:35:29 BasicIcfg [2022-09-16 11:35:29,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:35:29,569 INFO L158 Benchmark]: Toolchain (without parser) took 6190.66ms. Allocated memory was 192.9MB in the beginning and 621.8MB in the end (delta: 428.9MB). Free memory was 135.9MB in the beginning and 240.4MB in the end (delta: -104.6MB). Peak memory consumption was 324.5MB. Max. memory is 8.0GB. [2022-09-16 11:35:29,570 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 154.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:35:29,570 INFO L158 Benchmark]: CACSL2BoogieTranslator took 477.30ms. Allocated memory is still 192.9MB. Free memory was 135.6MB in the beginning and 152.8MB in the end (delta: -17.2MB). Peak memory consumption was 13.9MB. Max. memory is 8.0GB. [2022-09-16 11:35:29,570 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.29ms. Allocated memory is still 192.9MB. Free memory was 152.8MB in the beginning and 150.3MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:35:29,571 INFO L158 Benchmark]: Boogie Preprocessor took 32.94ms. Allocated memory is still 192.9MB. Free memory was 150.1MB in the beginning and 147.7MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:35:29,571 INFO L158 Benchmark]: RCFGBuilder took 1237.66ms. Allocated memory is still 192.9MB. Free memory was 147.7MB in the beginning and 60.7MB in the end (delta: 86.9MB). Peak memory consumption was 91.4MB. Max. memory is 8.0GB. [2022-09-16 11:35:29,572 INFO L158 Benchmark]: TraceAbstraction took 4400.26ms. Allocated memory was 192.9MB in the beginning and 621.8MB in the end (delta: 428.9MB). Free memory was 60.2MB in the beginning and 240.4MB in the end (delta: -180.2MB). Peak memory consumption was 248.6MB. Max. memory is 8.0GB. [2022-09-16 11:35:29,573 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 192.9MB. Free memory is still 154.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 477.30ms. Allocated memory is still 192.9MB. Free memory was 135.6MB in the beginning and 152.8MB in the end (delta: -17.2MB). Peak memory consumption was 13.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.29ms. Allocated memory is still 192.9MB. Free memory was 152.8MB in the beginning and 150.3MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.94ms. Allocated memory is still 192.9MB. Free memory was 150.1MB in the beginning and 147.7MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1237.66ms. Allocated memory is still 192.9MB. Free memory was 147.7MB in the beginning and 60.7MB in the end (delta: 86.9MB). Peak memory consumption was 91.4MB. Max. memory is 8.0GB. * TraceAbstraction took 4400.26ms. Allocated memory was 192.9MB in the beginning and 621.8MB in the end (delta: 428.9MB). Free memory was 60.2MB in the beginning and 240.4MB in the end (delta: -180.2MB). Peak memory consumption was 248.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 848]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 848]: 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 9 procedures, 195 locations, 20 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: 4.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 166 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 166 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 82 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 273 IncrementalHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 17 mSDtfsCounter, 273 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=453occurred in iteration=2, InterpolantAutomatonStates: 22, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 428 NumberOfCodeBlocks, 428 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 423 ConstructedInterpolants, 0 QuantifiedInterpolants, 1189 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:35:29,620 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...