/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/mix015.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:31:58,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:31:58,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:31:58,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:31:58,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:31:58,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:31:58,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:31:58,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:31:58,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:31:58,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:31:58,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:31:58,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:31:58,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:31:58,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:31:58,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:31:58,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:31:58,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:31:58,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:31:58,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:31:58,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:31:58,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:31:58,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:31:58,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:31:58,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:31:58,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:31:58,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:31:58,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:31:58,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:31:58,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:31:58,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:31:58,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:31:58,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:31:58,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:31:58,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:31:58,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:31:58,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:31:58,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:31:58,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:31:58,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:31:58,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:31:58,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:31:58,860 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 11:31:58,895 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:31:58,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:31:58,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:31:58,896 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:31:58,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:31:58,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:31:58,897 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:31:58,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:31:58,897 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:31:58,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:31:58,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:31:58,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:31:58,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:31:58,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:31:58,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:31:58,899 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:31:58,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:31:58,899 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:31:58,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:31:58,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:31:58,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:31:58,900 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:31:58,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:31:58,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:31:58,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:31:58,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:31:58,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:31:58,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:31:58,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:31:58,901 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:31:58,902 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:31:58,902 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:31:59,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:31:59,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:31:59,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:31:59,186 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:31:59,186 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:31:59,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix015.oepc.i [2022-09-16 11:31:59,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb49b9c3/372a8724077b4fa1bdc87b4685b99339/FLAG868903874 [2022-09-16 11:31:59,693 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:31:59,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix015.oepc.i [2022-09-16 11:31:59,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb49b9c3/372a8724077b4fa1bdc87b4685b99339/FLAG868903874 [2022-09-16 11:32:00,032 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb49b9c3/372a8724077b4fa1bdc87b4685b99339 [2022-09-16 11:32:00,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:32:00,035 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:32:00,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:32:00,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:32:00,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:32:00,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:32:00" (1/1) ... [2022-09-16 11:32:00,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4defaf2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:00, skipping insertion in model container [2022-09-16 11:32:00,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:32:00" (1/1) ... [2022-09-16 11:32:00,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:32:00,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:32:00,268 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/mix015.oepc.i[945,958] [2022-09-16 11:32:00,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:32:00,484 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:32:00,502 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/mix015.oepc.i[945,958] [2022-09-16 11:32:00,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:32:00,610 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:32:00,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:00 WrapperNode [2022-09-16 11:32:00,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:32:00,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:32:00,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:32:00,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:32:00,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:00" (1/1) ... [2022-09-16 11:32:00,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:00" (1/1) ... [2022-09-16 11:32:00,688 INFO L138 Inliner]: procedures = 176, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 188 [2022-09-16 11:32:00,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:32:00,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:32:00,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:32:00,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:32:00,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:00" (1/1) ... [2022-09-16 11:32:00,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:00" (1/1) ... [2022-09-16 11:32:00,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:00" (1/1) ... [2022-09-16 11:32:00,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:00" (1/1) ... [2022-09-16 11:32:00,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:00" (1/1) ... [2022-09-16 11:32:00,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:00" (1/1) ... [2022-09-16 11:32:00,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:00" (1/1) ... [2022-09-16 11:32:00,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:32:00,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:32:00,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:32:00,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:32:00,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:00" (1/1) ... [2022-09-16 11:32:00,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:32:00,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:32:00,777 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 11:32:00,804 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 11:32:00,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:32:00,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:32:00,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:32:00,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:32:00,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:32:00,827 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:32:00,827 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:32:00,828 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:32:00,828 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:32:00,828 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:32:00,828 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:32:00,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:32:00,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:32:00,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:32:00,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:32:00,831 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 11:32:01,052 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:32:01,053 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:32:01,461 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:32:02,064 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:32:02,064 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:32:02,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:32:02 BoogieIcfgContainer [2022-09-16 11:32:02,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:32:02,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:32:02,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:32:02,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:32:02,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:32:00" (1/3) ... [2022-09-16 11:32:02,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d24621e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:32:02, skipping insertion in model container [2022-09-16 11:32:02,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:00" (2/3) ... [2022-09-16 11:32:02,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d24621e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:32:02, skipping insertion in model container [2022-09-16 11:32:02,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:32:02" (3/3) ... [2022-09-16 11:32:02,076 INFO L112 eAbstractionObserver]: Analyzing ICFG mix015.oepc.i [2022-09-16 11:32:02,092 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:32:02,092 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 11:32:02,093 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:32:02,163 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:32:02,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 126 transitions, 267 flow [2022-09-16 11:32:02,286 INFO L130 PetriNetUnfolder]: 2/123 cut-off events. [2022-09-16 11:32:02,287 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:32:02,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 123 events. 2/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 87 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2022-09-16 11:32:02,292 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 126 transitions, 267 flow [2022-09-16 11:32:02,299 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 123 transitions, 255 flow [2022-09-16 11:32:02,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:32:02,319 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;@2f4d1e8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:32:02,319 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-09-16 11:32:02,329 INFO L130 PetriNetUnfolder]: 0/60 cut-off events. [2022-09-16 11:32:02,329 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:32:02,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:02,330 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] [2022-09-16 11:32:02,330 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:32:02,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:02,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1426765844, now seen corresponding path program 1 times [2022-09-16 11:32:02,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:02,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407048678] [2022-09-16 11:32:02,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:02,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:02,660 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 11:32:02,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:02,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407048678] [2022-09-16 11:32:02,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407048678] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:02,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:02,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:32:02,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021947344] [2022-09-16 11:32:02,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:02,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:32:02,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:02,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:32:02,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:32:02,709 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 126 [2022-09-16 11:32:02,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 123 transitions, 255 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 11:32:02,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:02,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 126 [2022-09-16 11:32:02,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:03,165 INFO L130 PetriNetUnfolder]: 521/1316 cut-off events. [2022-09-16 11:32:03,165 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-09-16 11:32:03,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2199 conditions, 1316 events. 521/1316 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 8908 event pairs, 148 based on Foata normal form. 50/1079 useless extension candidates. Maximal degree in co-relation 2143. Up to 682 conditions per place. [2022-09-16 11:32:03,185 INFO L137 encePairwiseOnDemand]: 114/126 looper letters, 28 selfloop transitions, 4 changer transitions 0/132 dead transitions. [2022-09-16 11:32:03,185 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 132 transitions, 343 flow [2022-09-16 11:32:03,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:32:03,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:32:03,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2022-09-16 11:32:03,202 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9285714285714286 [2022-09-16 11:32:03,203 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2022-09-16 11:32:03,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2022-09-16 11:32:03,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:03,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2022-09-16 11:32:03,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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 11:32:03,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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 11:32:03,223 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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 11:32:03,224 INFO L175 Difference]: Start difference. First operand has 131 places, 123 transitions, 255 flow. Second operand 3 states and 351 transitions. [2022-09-16 11:32:03,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 132 transitions, 343 flow [2022-09-16 11:32:03,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 132 transitions, 338 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:32:03,238 INFO L231 Difference]: Finished difference. Result has 130 places, 123 transitions, 282 flow [2022-09-16 11:32:03,240 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=130, PETRI_TRANSITIONS=123} [2022-09-16 11:32:03,244 INFO L287 CegarLoopForPetriNet]: 131 programPoint places, -1 predicate places. [2022-09-16 11:32:03,244 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 123 transitions, 282 flow [2022-09-16 11:32:03,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 11:32:03,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:03,245 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] [2022-09-16 11:32:03,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:32:03,247 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:32:03,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:03,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1920636802, now seen corresponding path program 1 times [2022-09-16 11:32:03,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:03,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888567254] [2022-09-16 11:32:03,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:03,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:03,353 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 11:32:03,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:03,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888567254] [2022-09-16 11:32:03,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888567254] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:03,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:03,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:32:03,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302227033] [2022-09-16 11:32:03,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:03,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:32:03,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:03,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:32:03,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:32:03,357 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 126 [2022-09-16 11:32:03,358 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 123 transitions, 282 flow. Second operand has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 11:32:03,358 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:03,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 126 [2022-09-16 11:32:03,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:03,665 INFO L130 PetriNetUnfolder]: 388/1335 cut-off events. [2022-09-16 11:32:03,666 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-09-16 11:32:03,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2287 conditions, 1335 events. 388/1335 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 9153 event pairs, 203 based on Foata normal form. 0/1160 useless extension candidates. Maximal degree in co-relation 2231. Up to 462 conditions per place. [2022-09-16 11:32:03,687 INFO L137 encePairwiseOnDemand]: 119/126 looper letters, 25 selfloop transitions, 4 changer transitions 0/129 dead transitions. [2022-09-16 11:32:03,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 129 transitions, 350 flow [2022-09-16 11:32:03,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:32:03,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:32:03,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 444 transitions. [2022-09-16 11:32:03,691 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8809523809523809 [2022-09-16 11:32:03,691 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 444 transitions. [2022-09-16 11:32:03,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 444 transitions. [2022-09-16 11:32:03,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:03,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 444 transitions. [2022-09-16 11:32:03,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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 11:32:03,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 126.0) internal successors, (630), 5 states have internal predecessors, (630), 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 11:32:03,696 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 126.0) internal successors, (630), 5 states have internal predecessors, (630), 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 11:32:03,696 INFO L175 Difference]: Start difference. First operand has 130 places, 123 transitions, 282 flow. Second operand 4 states and 444 transitions. [2022-09-16 11:32:03,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 129 transitions, 350 flow [2022-09-16 11:32:03,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 129 transitions, 346 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:32:03,702 INFO L231 Difference]: Finished difference. Result has 129 places, 120 transitions, 274 flow [2022-09-16 11:32:03,702 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=129, PETRI_TRANSITIONS=120} [2022-09-16 11:32:03,703 INFO L287 CegarLoopForPetriNet]: 131 programPoint places, -2 predicate places. [2022-09-16 11:32:03,703 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 120 transitions, 274 flow [2022-09-16 11:32:03,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 11:32:03,703 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:03,704 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] [2022-09-16 11:32:03,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:32:03,704 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:32:03,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:03,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1920636801, now seen corresponding path program 1 times [2022-09-16 11:32:03,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:03,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817754378] [2022-09-16 11:32:03,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:03,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:03,839 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 11:32:03,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:03,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817754378] [2022-09-16 11:32:03,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817754378] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:03,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:03,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:32:03,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588324523] [2022-09-16 11:32:03,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:03,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:32:03,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:03,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:32:03,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:32:03,844 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 126 [2022-09-16 11:32:03,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 120 transitions, 274 flow. Second operand has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 11:32:03,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:03,845 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 126 [2022-09-16 11:32:03,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:04,134 INFO L130 PetriNetUnfolder]: 291/917 cut-off events. [2022-09-16 11:32:04,134 INFO L131 PetriNetUnfolder]: For 134/134 co-relation queries the response was YES. [2022-09-16 11:32:04,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1624 conditions, 917 events. 291/917 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5750 event pairs, 91 based on Foata normal form. 0/858 useless extension candidates. Maximal degree in co-relation 1567. Up to 198 conditions per place. [2022-09-16 11:32:04,144 INFO L137 encePairwiseOnDemand]: 119/126 looper letters, 30 selfloop transitions, 7 changer transitions 3/140 dead transitions. [2022-09-16 11:32:04,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 140 transitions, 406 flow [2022-09-16 11:32:04,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:32:04,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:32:04,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2022-09-16 11:32:04,146 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9027777777777778 [2022-09-16 11:32:04,146 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2022-09-16 11:32:04,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2022-09-16 11:32:04,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:04,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2022-09-16 11:32:04,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 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 11:32:04,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 126.0) internal successors, (630), 5 states have internal predecessors, (630), 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 11:32:04,149 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 126.0) internal successors, (630), 5 states have internal predecessors, (630), 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 11:32:04,149 INFO L175 Difference]: Start difference. First operand has 129 places, 120 transitions, 274 flow. Second operand 4 states and 455 transitions. [2022-09-16 11:32:04,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 140 transitions, 406 flow [2022-09-16 11:32:04,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 140 transitions, 401 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:32:04,155 INFO L231 Difference]: Finished difference. Result has 131 places, 120 transitions, 295 flow [2022-09-16 11:32:04,155 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=295, PETRI_PLACES=131, PETRI_TRANSITIONS=120} [2022-09-16 11:32:04,157 INFO L287 CegarLoopForPetriNet]: 131 programPoint places, 0 predicate places. [2022-09-16 11:32:04,157 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 120 transitions, 295 flow [2022-09-16 11:32:04,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 11:32:04,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:04,158 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] [2022-09-16 11:32:04,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:32:04,158 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:32:04,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:04,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1507624782, now seen corresponding path program 1 times [2022-09-16 11:32:04,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:04,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831596591] [2022-09-16 11:32:04,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:04,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:04,288 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 11:32:04,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:04,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831596591] [2022-09-16 11:32:04,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831596591] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:04,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:04,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:32:04,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703706594] [2022-09-16 11:32:04,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:04,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:32:04,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:04,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:32:04,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:32:04,292 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 126 [2022-09-16 11:32:04,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 120 transitions, 295 flow. Second operand has 5 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 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 11:32:04,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:04,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 126 [2022-09-16 11:32:04,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:04,528 INFO L130 PetriNetUnfolder]: 277/1070 cut-off events. [2022-09-16 11:32:04,528 INFO L131 PetriNetUnfolder]: For 372/372 co-relation queries the response was YES. [2022-09-16 11:32:04,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1903 conditions, 1070 events. 277/1070 cut-off events. For 372/372 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6997 event pairs, 111 based on Foata normal form. 9/1019 useless extension candidates. Maximal degree in co-relation 1845. Up to 198 conditions per place. [2022-09-16 11:32:04,535 INFO L137 encePairwiseOnDemand]: 119/126 looper letters, 0 selfloop transitions, 0 changer transitions 134/134 dead transitions. [2022-09-16 11:32:04,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 134 transitions, 385 flow [2022-09-16 11:32:04,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:32:04,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:32:04,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 552 transitions. [2022-09-16 11:32:04,537 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8761904761904762 [2022-09-16 11:32:04,537 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 552 transitions. [2022-09-16 11:32:04,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 552 transitions. [2022-09-16 11:32:04,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:04,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 552 transitions. [2022-09-16 11:32:04,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 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 11:32:04,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 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 11:32:04,541 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 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 11:32:04,541 INFO L175 Difference]: Start difference. First operand has 131 places, 120 transitions, 295 flow. Second operand 5 states and 552 transitions. [2022-09-16 11:32:04,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 134 transitions, 385 flow [2022-09-16 11:32:04,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 134 transitions, 361 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-09-16 11:32:04,544 INFO L231 Difference]: Finished difference. Result has 128 places, 0 transitions, 0 flow [2022-09-16 11:32:04,545 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=128, PETRI_TRANSITIONS=0} [2022-09-16 11:32:04,545 INFO L287 CegarLoopForPetriNet]: 131 programPoint places, -3 predicate places. [2022-09-16 11:32:04,546 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 0 transitions, 0 flow [2022-09-16 11:32:04,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 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 11:32:04,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-09-16 11:32:04,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-09-16 11:32:04,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-09-16 11:32:04,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-09-16 11:32:04,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-09-16 11:32:04,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-09-16 11:32:04,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-09-16 11:32:04,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-09-16 11:32:04,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-09-16 11:32:04,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-09-16 11:32:04,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-09-16 11:32:04,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-09-16 11:32:04,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-09-16 11:32:04,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-09-16 11:32:04,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-09-16 11:32:04,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:32:04,553 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-09-16 11:32:04,560 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:32:04,560 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:32:04,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:32:04 BasicIcfg [2022-09-16 11:32:04,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:32:04,570 INFO L158 Benchmark]: Toolchain (without parser) took 4533.85ms. Allocated memory was 252.7MB in the beginning and 318.8MB in the end (delta: 66.1MB). Free memory was 221.1MB in the beginning and 127.0MB in the end (delta: 94.1MB). Peak memory consumption was 159.6MB. Max. memory is 8.0GB. [2022-09-16 11:32:04,570 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 175.1MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:32:04,570 INFO L158 Benchmark]: CACSL2BoogieTranslator took 574.68ms. Allocated memory is still 252.7MB. Free memory was 221.1MB in the beginning and 206.5MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-09-16 11:32:04,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.83ms. Allocated memory is still 252.7MB. Free memory was 206.5MB in the beginning and 204.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:32:04,573 INFO L158 Benchmark]: Boogie Preprocessor took 57.83ms. Allocated memory is still 252.7MB. Free memory was 203.8MB in the beginning and 201.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:32:04,573 INFO L158 Benchmark]: RCFGBuilder took 1318.91ms. Allocated memory is still 252.7MB. Free memory was 201.7MB in the beginning and 208.0MB in the end (delta: -6.3MB). Peak memory consumption was 99.1MB. Max. memory is 8.0GB. [2022-09-16 11:32:04,578 INFO L158 Benchmark]: TraceAbstraction took 2499.17ms. Allocated memory was 252.7MB in the beginning and 318.8MB in the end (delta: 66.1MB). Free memory was 207.5MB in the beginning and 127.0MB in the end (delta: 80.5MB). Peak memory consumption was 147.1MB. Max. memory is 8.0GB. [2022-09-16 11:32:04,580 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 175.1MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 574.68ms. Allocated memory is still 252.7MB. Free memory was 221.1MB in the beginning and 206.5MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 76.83ms. Allocated memory is still 252.7MB. Free memory was 206.5MB in the beginning and 204.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.83ms. Allocated memory is still 252.7MB. Free memory was 203.8MB in the beginning and 201.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1318.91ms. Allocated memory is still 252.7MB. Free memory was 201.7MB in the beginning and 208.0MB in the end (delta: -6.3MB). Peak memory consumption was 99.1MB. Max. memory is 8.0GB. * TraceAbstraction took 2499.17ms. Allocated memory was 252.7MB in the beginning and 318.8MB in the end (delta: 66.1MB). Free memory was 207.5MB in the beginning and 127.0MB in the end (delta: 80.5MB). Peak memory consumption was 147.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 835]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 835]: 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 7 procedures, 161 locations, 15 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: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 71 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 170 IncrementalHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 10 mSDtfsCounter, 170 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=295occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 265 NumberOfCodeBlocks, 265 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 261 ConstructedInterpolants, 0 QuantifiedInterpolants, 719 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:32:04,620 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...