/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/clever.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:53:25,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:53:25,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:53:25,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:53:25,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:53:25,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:53:25,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:53:25,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:53:25,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:53:25,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:53:25,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:53:25,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:53:25,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:53:25,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:53:25,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:53:25,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:53:25,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:53:25,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:53:25,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:53:25,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:53:25,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:53:26,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:53:26,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:53:26,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:53:26,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:53:26,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:53:26,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:53:26,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:53:26,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:53:26,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:53:26,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:53:26,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:53:26,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:53:26,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:53:26,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:53:26,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:53:26,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:53:26,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:53:26,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:53:26,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:53:26,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:53:26,018 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 10:53:26,044 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:53:26,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:53:26,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:53:26,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:53:26,045 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:53:26,046 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:53:26,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:53:26,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:53:26,046 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:53:26,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:53:26,047 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:53:26,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:53:26,047 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:53:26,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:53:26,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:53:26,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:53:26,047 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:53:26,047 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:53:26,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:53:26,048 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:53:26,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:53:26,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:53:26,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:53:26,048 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:53:26,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:53:26,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:53:26,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:53:26,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:53:26,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:53:26,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:53:26,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:53:26,049 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:53:26,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:53:26,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:53:26,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:53:26,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:53:26,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:53:26,275 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:53:26,275 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:53:26,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/clever.wvr.c [2022-09-16 10:53:26,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9165aa97f/11f38f557b304a59a0448d277f68d863/FLAG55a9be826 [2022-09-16 10:53:26,662 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:53:26,663 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/clever.wvr.c [2022-09-16 10:53:26,668 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9165aa97f/11f38f557b304a59a0448d277f68d863/FLAG55a9be826 [2022-09-16 10:53:26,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9165aa97f/11f38f557b304a59a0448d277f68d863 [2022-09-16 10:53:26,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:53:26,680 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:53:26,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:53:26,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:53:26,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:53:26,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:53:26" (1/1) ... [2022-09-16 10:53:26,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bc42021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:26, skipping insertion in model container [2022-09-16 10:53:26,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:53:26" (1/1) ... [2022-09-16 10:53:26,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:53:26,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:53:26,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/clever.wvr.c[2133,2146] [2022-09-16 10:53:26,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:53:26,889 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:53:26,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/clever.wvr.c[2133,2146] [2022-09-16 10:53:26,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:53:26,928 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:53:26,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:26 WrapperNode [2022-09-16 10:53:26,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:53:26,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:53:26,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:53:26,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:53:26,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:26" (1/1) ... [2022-09-16 10:53:26,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:26" (1/1) ... [2022-09-16 10:53:26,967 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 78 [2022-09-16 10:53:26,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:53:26,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:53:26,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:53:26,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:53:26,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:26" (1/1) ... [2022-09-16 10:53:26,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:26" (1/1) ... [2022-09-16 10:53:26,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:26" (1/1) ... [2022-09-16 10:53:26,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:26" (1/1) ... [2022-09-16 10:53:26,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:26" (1/1) ... [2022-09-16 10:53:26,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:26" (1/1) ... [2022-09-16 10:53:26,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:26" (1/1) ... [2022-09-16 10:53:26,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:53:26,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:53:26,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:53:26,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:53:27,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:26" (1/1) ... [2022-09-16 10:53:27,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:53:27,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:53:27,044 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 10:53:27,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 10:53:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:53:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 10:53:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 10:53:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 10:53:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 10:53:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:53:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:53:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:53:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:53:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:53:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:53:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:53:27,081 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 10:53:27,155 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:53:27,156 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:53:27,400 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:53:27,405 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:53:27,406 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-09-16 10:53:27,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:53:27 BoogieIcfgContainer [2022-09-16 10:53:27,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:53:27,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:53:27,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:53:27,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:53:27,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:53:26" (1/3) ... [2022-09-16 10:53:27,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c09a5c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:53:27, skipping insertion in model container [2022-09-16 10:53:27,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:26" (2/3) ... [2022-09-16 10:53:27,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c09a5c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:53:27, skipping insertion in model container [2022-09-16 10:53:27,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:53:27" (3/3) ... [2022-09-16 10:53:27,416 INFO L112 eAbstractionObserver]: Analyzing ICFG clever.wvr.c [2022-09-16 10:53:27,421 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:53:27,445 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:53:27,445 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 10:53:27,445 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:53:27,511 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-16 10:53:27,547 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 130 places, 132 transitions, 280 flow [2022-09-16 10:53:27,620 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1291 states, 1277 states have (on average 2.7854346123727485) internal successors, (3557), 1290 states have internal predecessors, (3557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:27,637 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:53:27,642 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@59f0ce7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:53:27,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-09-16 10:53:27,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 1291 states, 1277 states have (on average 2.7854346123727485) internal successors, (3557), 1290 states have internal predecessors, (3557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:27,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-09-16 10:53:27,654 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:27,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:27,656 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 10:53:27,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:27,662 INFO L85 PathProgramCache]: Analyzing trace with hash 2010664011, now seen corresponding path program 1 times [2022-09-16 10:53:27,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:27,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990033881] [2022-09-16 10:53:27,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:27,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:27,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:27,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:27,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990033881] [2022-09-16 10:53:27,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990033881] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:53:27,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:53:27,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:53:27,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203652371] [2022-09-16 10:53:27,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:53:27,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-16 10:53:27,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:27,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-16 10:53:27,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-16 10:53:27,908 INFO L87 Difference]: Start difference. First operand has 1291 states, 1277 states have (on average 2.7854346123727485) internal successors, (3557), 1290 states have internal predecessors, (3557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:27,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:27,963 INFO L93 Difference]: Finished difference Result 1291 states and 3379 transitions. [2022-09-16 10:53:27,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 10:53:27,966 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-09-16 10:53:27,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:27,986 INFO L225 Difference]: With dead ends: 1291 [2022-09-16 10:53:27,987 INFO L226 Difference]: Without dead ends: 1289 [2022-09-16 10:53:27,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-16 10:53:27,992 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:27,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:53:28,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2022-09-16 10:53:28,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1289. [2022-09-16 10:53:28,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1275 states have (on average 2.648627450980392) internal successors, (3377), 1288 states have internal predecessors, (3377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:28,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 3377 transitions. [2022-09-16 10:53:28,083 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 3377 transitions. Word has length 61 [2022-09-16 10:53:28,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:53:28,084 INFO L495 AbstractCegarLoop]: Abstraction has 1289 states and 3377 transitions. [2022-09-16 10:53:28,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:28,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 3377 transitions. [2022-09-16 10:53:28,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-09-16 10:53:28,088 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:28,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:28,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:53:28,089 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 10:53:28,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:28,089 INFO L85 PathProgramCache]: Analyzing trace with hash 2010664972, now seen corresponding path program 1 times [2022-09-16 10:53:28,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:28,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786823055] [2022-09-16 10:53:28,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:28,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:28,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:28,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786823055] [2022-09-16 10:53:28,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786823055] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:53:28,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:53:28,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:53:28,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065375989] [2022-09-16 10:53:28,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:53:28,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:53:28,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:28,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:53:28,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:53:28,212 INFO L87 Difference]: Start difference. First operand 1289 states and 3377 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:28,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:28,310 INFO L93 Difference]: Finished difference Result 1235 states and 3233 transitions. [2022-09-16 10:53:28,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:53:28,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-09-16 10:53:28,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:28,318 INFO L225 Difference]: With dead ends: 1235 [2022-09-16 10:53:28,318 INFO L226 Difference]: Without dead ends: 1235 [2022-09-16 10:53:28,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:53:28,319 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 156 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:28,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 440 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:53:28,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2022-09-16 10:53:28,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 1235. [2022-09-16 10:53:28,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 1224 states have (on average 2.6413398692810457) internal successors, (3233), 1234 states have internal predecessors, (3233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:28,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 3233 transitions. [2022-09-16 10:53:28,367 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 3233 transitions. Word has length 61 [2022-09-16 10:53:28,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:53:28,370 INFO L495 AbstractCegarLoop]: Abstraction has 1235 states and 3233 transitions. [2022-09-16 10:53:28,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:28,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 3233 transitions. [2022-09-16 10:53:28,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-09-16 10:53:28,378 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:28,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:28,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:53:28,378 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 10:53:28,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:28,379 INFO L85 PathProgramCache]: Analyzing trace with hash -2093894964, now seen corresponding path program 1 times [2022-09-16 10:53:28,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:28,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20162341] [2022-09-16 10:53:28,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:28,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:28,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:28,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20162341] [2022-09-16 10:53:28,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20162341] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:53:28,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:53:28,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:53:28,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587437914] [2022-09-16 10:53:28,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:53:28,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:53:28,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:28,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:53:28,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:53:28,488 INFO L87 Difference]: Start difference. First operand 1235 states and 3233 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:28,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:28,556 INFO L93 Difference]: Finished difference Result 1181 states and 3089 transitions. [2022-09-16 10:53:28,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:53:28,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-09-16 10:53:28,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:28,564 INFO L225 Difference]: With dead ends: 1181 [2022-09-16 10:53:28,564 INFO L226 Difference]: Without dead ends: 1181 [2022-09-16 10:53:28,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:53:28,570 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 81 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:28,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 319 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:53:28,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2022-09-16 10:53:28,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1181. [2022-09-16 10:53:28,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 1173 states have (on average 2.6334185848252343) internal successors, (3089), 1180 states have internal predecessors, (3089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:28,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 3089 transitions. [2022-09-16 10:53:28,619 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 3089 transitions. Word has length 62 [2022-09-16 10:53:28,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:53:28,620 INFO L495 AbstractCegarLoop]: Abstraction has 1181 states and 3089 transitions. [2022-09-16 10:53:28,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:28,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 3089 transitions. [2022-09-16 10:53:28,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-09-16 10:53:28,625 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:28,625 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:28,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:53:28,625 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 10:53:28,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:28,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2136195951, now seen corresponding path program 1 times [2022-09-16 10:53:28,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:28,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40185335] [2022-09-16 10:53:28,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:28,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:28,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:28,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:28,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40185335] [2022-09-16 10:53:28,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40185335] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:53:28,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:53:28,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:53:28,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074508893] [2022-09-16 10:53:28,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:53:28,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:53:28,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:28,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:53:28,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:53:28,722 INFO L87 Difference]: Start difference. First operand 1181 states and 3089 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:28,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:28,786 INFO L93 Difference]: Finished difference Result 2198 states and 5834 transitions. [2022-09-16 10:53:28,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:53:28,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-09-16 10:53:28,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:28,799 INFO L225 Difference]: With dead ends: 2198 [2022-09-16 10:53:28,799 INFO L226 Difference]: Without dead ends: 2198 [2022-09-16 10:53:28,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:53:28,808 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 102 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:28,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 348 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:53:28,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2022-09-16 10:53:28,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 1559. [2022-09-16 10:53:28,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1551 states have (on average 2.6763378465506125) internal successors, (4151), 1558 states have internal predecessors, (4151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:28,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 4151 transitions. [2022-09-16 10:53:28,850 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 4151 transitions. Word has length 64 [2022-09-16 10:53:28,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:53:28,851 INFO L495 AbstractCegarLoop]: Abstraction has 1559 states and 4151 transitions. [2022-09-16 10:53:28,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:28,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 4151 transitions. [2022-09-16 10:53:28,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-09-16 10:53:28,853 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:28,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:28,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 10:53:28,853 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 10:53:28,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:28,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1950227618, now seen corresponding path program 1 times [2022-09-16 10:53:28,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:28,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006734463] [2022-09-16 10:53:28,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:28,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:28,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:28,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:28,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006734463] [2022-09-16 10:53:28,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006734463] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:53:28,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:53:28,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:53:28,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870760240] [2022-09-16 10:53:28,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:53:28,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:53:28,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:28,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:53:28,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:53:28,946 INFO L87 Difference]: Start difference. First operand 1559 states and 4151 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:29,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:29,023 INFO L93 Difference]: Finished difference Result 1444 states and 3829 transitions. [2022-09-16 10:53:29,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:53:29,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-09-16 10:53:29,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:29,030 INFO L225 Difference]: With dead ends: 1444 [2022-09-16 10:53:29,030 INFO L226 Difference]: Without dead ends: 1444 [2022-09-16 10:53:29,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:53:29,031 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 160 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:29,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 484 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:53:29,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-09-16 10:53:29,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1444. [2022-09-16 10:53:29,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1439 states have (on average 2.6608756080611538) internal successors, (3829), 1443 states have internal predecessors, (3829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:29,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 3829 transitions. [2022-09-16 10:53:29,073 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 3829 transitions. Word has length 66 [2022-09-16 10:53:29,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:53:29,074 INFO L495 AbstractCegarLoop]: Abstraction has 1444 states and 3829 transitions. [2022-09-16 10:53:29,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:29,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 3829 transitions. [2022-09-16 10:53:29,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-09-16 10:53:29,075 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:29,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:29,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:53:29,076 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 10:53:29,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:29,076 INFO L85 PathProgramCache]: Analyzing trace with hash -327513649, now seen corresponding path program 1 times [2022-09-16 10:53:29,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:29,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772559227] [2022-09-16 10:53:29,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:29,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:29,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:29,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:29,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772559227] [2022-09-16 10:53:29,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772559227] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:53:29,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:53:29,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:53:29,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071022825] [2022-09-16 10:53:29,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:53:29,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:53:29,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:29,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:53:29,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:53:29,138 INFO L87 Difference]: Start difference. First operand 1444 states and 3829 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:29,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:29,180 INFO L93 Difference]: Finished difference Result 1329 states and 3507 transitions. [2022-09-16 10:53:29,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:53:29,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-09-16 10:53:29,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:29,185 INFO L225 Difference]: With dead ends: 1329 [2022-09-16 10:53:29,185 INFO L226 Difference]: Without dead ends: 1206 [2022-09-16 10:53:29,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:53:29,187 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 83 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:29,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 328 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:53:29,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-09-16 10:53:29,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1206. [2022-09-16 10:53:29,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1204 states have (on average 2.6561461794019934) internal successors, (3198), 1205 states have internal predecessors, (3198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:29,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 3198 transitions. [2022-09-16 10:53:29,211 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 3198 transitions. Word has length 67 [2022-09-16 10:53:29,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:53:29,211 INFO L495 AbstractCegarLoop]: Abstraction has 1206 states and 3198 transitions. [2022-09-16 10:53:29,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:29,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 3198 transitions. [2022-09-16 10:53:29,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-09-16 10:53:29,213 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:29,213 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:29,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:53:29,213 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 10:53:29,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:29,214 INFO L85 PathProgramCache]: Analyzing trace with hash 2137003194, now seen corresponding path program 1 times [2022-09-16 10:53:29,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:29,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310730893] [2022-09-16 10:53:29,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:29,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:29,271 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:29,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:29,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310730893] [2022-09-16 10:53:29,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310730893] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:53:29,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645341716] [2022-09-16 10:53:29,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:29,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:53:29,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:53:29,301 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:53:29,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 10:53:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:29,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:53:29,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:53:29,460 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:29,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:53:29,515 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:29,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645341716] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:53:29,516 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:53:29,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 10:53:29,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839872280] [2022-09-16 10:53:29,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:53:29,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 10:53:29,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:29,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 10:53:29,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:53:29,517 INFO L87 Difference]: Start difference. First operand 1206 states and 3198 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:29,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:29,661 INFO L93 Difference]: Finished difference Result 3920 states and 10534 transitions. [2022-09-16 10:53:29,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:53:29,662 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-09-16 10:53:29,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:29,676 INFO L225 Difference]: With dead ends: 3920 [2022-09-16 10:53:29,677 INFO L226 Difference]: Without dead ends: 3920 [2022-09-16 10:53:29,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:53:29,677 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 701 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:29,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 689 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:53:29,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2022-09-16 10:53:29,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 2402. [2022-09-16 10:53:29,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2402 states, 2400 states have (on average 2.75) internal successors, (6600), 2401 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:29,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2402 states to 2402 states and 6600 transitions. [2022-09-16 10:53:29,731 INFO L78 Accepts]: Start accepts. Automaton has 2402 states and 6600 transitions. Word has length 73 [2022-09-16 10:53:29,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:53:29,732 INFO L495 AbstractCegarLoop]: Abstraction has 2402 states and 6600 transitions. [2022-09-16 10:53:29,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:29,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2402 states and 6600 transitions. [2022-09-16 10:53:29,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-09-16 10:53:29,737 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:29,737 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:29,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 10:53:29,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:53:29,955 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 10:53:29,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:29,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1822589926, now seen corresponding path program 1 times [2022-09-16 10:53:29,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:29,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847137451] [2022-09-16 10:53:29,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:29,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:30,017 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:30,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:30,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847137451] [2022-09-16 10:53:30,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847137451] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:53:30,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132516045] [2022-09-16 10:53:30,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:30,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:53:30,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:53:30,040 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:53:30,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 10:53:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:30,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:53:30,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:53:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:30,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:53:30,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132516045] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:53:30,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:53:30,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:53:30,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756171852] [2022-09-16 10:53:30,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:53:30,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:53:30,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:30,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:53:30,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:53:30,170 INFO L87 Difference]: Start difference. First operand 2402 states and 6600 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:30,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:30,229 INFO L93 Difference]: Finished difference Result 2770 states and 7484 transitions. [2022-09-16 10:53:30,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:53:30,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-09-16 10:53:30,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:30,239 INFO L225 Difference]: With dead ends: 2770 [2022-09-16 10:53:30,239 INFO L226 Difference]: Without dead ends: 2770 [2022-09-16 10:53:30,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:53:30,240 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 141 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:30,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 566 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:53:30,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2022-09-16 10:53:30,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2356. [2022-09-16 10:53:30,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 2355 states have (on average 2.711677282377919) internal successors, (6386), 2355 states have internal predecessors, (6386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:30,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 6386 transitions. [2022-09-16 10:53:30,284 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 6386 transitions. Word has length 74 [2022-09-16 10:53:30,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:53:30,284 INFO L495 AbstractCegarLoop]: Abstraction has 2356 states and 6386 transitions. [2022-09-16 10:53:30,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:30,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 6386 transitions. [2022-09-16 10:53:30,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-09-16 10:53:30,288 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:30,288 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:30,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 10:53:30,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-09-16 10:53:30,511 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 10:53:30,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:30,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1661858863, now seen corresponding path program 2 times [2022-09-16 10:53:30,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:30,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714539592] [2022-09-16 10:53:30,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:30,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:30,586 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:30,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:30,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714539592] [2022-09-16 10:53:30,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714539592] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:53:30,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139981437] [2022-09-16 10:53:30,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:53:30,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:53:30,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:53:30,588 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:53:30,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 10:53:30,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:53:30,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:53:30,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:53:30,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:53:30,738 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 10:53:30,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:53:30,853 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 10:53:30,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139981437] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:53:30,854 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:53:30,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 15 [2022-09-16 10:53:30,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537784433] [2022-09-16 10:53:30,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:53:30,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-09-16 10:53:30,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:30,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-09-16 10:53:30,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-09-16 10:53:30,855 INFO L87 Difference]: Start difference. First operand 2356 states and 6386 transitions. Second operand has 16 states, 15 states have (on average 9.933333333333334) internal successors, (149), 16 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:31,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:31,133 INFO L93 Difference]: Finished difference Result 4840 states and 13066 transitions. [2022-09-16 10:53:31,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:53:31,133 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.933333333333334) internal successors, (149), 16 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-09-16 10:53:31,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:31,133 INFO L225 Difference]: With dead ends: 4840 [2022-09-16 10:53:31,134 INFO L226 Difference]: Without dead ends: 0 [2022-09-16 10:53:31,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 198 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=345, Invalid=845, Unknown=0, NotChecked=0, Total=1190 [2022-09-16 10:53:31,134 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 1128 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:31,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1128 Valid, 779 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:53:31,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-09-16 10:53:31,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-09-16 10:53:31,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:31,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-09-16 10:53:31,135 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2022-09-16 10:53:31,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:53:31,135 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-16 10:53:31,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.933333333333334) internal successors, (149), 16 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:31,136 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-09-16 10:53:31,136 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-09-16 10:53:31,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2022-09-16 10:53:31,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2022-09-16 10:53:31,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2022-09-16 10:53:31,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2022-09-16 10:53:31,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2022-09-16 10:53:31,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2022-09-16 10:53:31,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 14 remaining) [2022-09-16 10:53:31,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 14 remaining) [2022-09-16 10:53:31,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2022-09-16 10:53:31,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2022-09-16 10:53:31,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2022-09-16 10:53:31,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2022-09-16 10:53:31,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2022-09-16 10:53:31,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2022-09-16 10:53:31,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 10:53:31,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:53:31,358 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:31,361 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 10:53:31,361 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 10:53:31,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 10:53:31 BasicIcfg [2022-09-16 10:53:31,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 10:53:31,363 INFO L158 Benchmark]: Toolchain (without parser) took 4683.99ms. Allocated memory was 216.0MB in the beginning and 266.3MB in the end (delta: 50.3MB). Free memory was 160.8MB in the beginning and 189.8MB in the end (delta: -29.1MB). Peak memory consumption was 21.7MB. Max. memory is 8.0GB. [2022-09-16 10:53:31,364 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 216.0MB. Free memory was 177.5MB in the beginning and 177.4MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 10:53:31,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.66ms. Allocated memory was 216.0MB in the beginning and 266.3MB in the end (delta: 50.3MB). Free memory was 160.5MB in the beginning and 241.2MB in the end (delta: -80.7MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB. [2022-09-16 10:53:31,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.58ms. Allocated memory is still 266.3MB. Free memory was 241.2MB in the beginning and 239.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 10:53:31,364 INFO L158 Benchmark]: Boogie Preprocessor took 28.50ms. Allocated memory is still 266.3MB. Free memory was 239.7MB in the beginning and 238.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 10:53:31,365 INFO L158 Benchmark]: RCFGBuilder took 410.52ms. Allocated memory is still 266.3MB. Free memory was 238.6MB in the beginning and 223.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-09-16 10:53:31,365 INFO L158 Benchmark]: TraceAbstraction took 3954.24ms. Allocated memory is still 266.3MB. Free memory was 223.4MB in the beginning and 189.8MB in the end (delta: 33.6MB). Peak memory consumption was 34.1MB. Max. memory is 8.0GB. [2022-09-16 10:53:31,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 216.0MB. Free memory was 177.5MB in the beginning and 177.4MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 247.66ms. Allocated memory was 216.0MB in the beginning and 266.3MB in the end (delta: 50.3MB). Free memory was 160.5MB in the beginning and 241.2MB in the end (delta: -80.7MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.58ms. Allocated memory is still 266.3MB. Free memory was 241.2MB in the beginning and 239.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.50ms. Allocated memory is still 266.3MB. Free memory was 239.7MB in the beginning and 238.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 410.52ms. Allocated memory is still 266.3MB. Free memory was 238.6MB in the beginning and 223.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3954.24ms. Allocated memory is still 266.3MB. Free memory was 223.4MB in the beginning and 189.8MB in the end (delta: 33.6MB). Peak memory consumption was 34.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 161 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2552 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2552 mSDsluCounter, 4056 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3011 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 511 IncrementalHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 1143 mSDtfsCounter, 511 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 512 GetRequests, 418 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2402occurred in iteration=7, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 2571 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 875 NumberOfCodeBlocks, 839 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1034 ConstructedInterpolants, 0 QuantifiedInterpolants, 2030 SizeOfPredicates, 10 NumberOfNonLiveVariables, 432 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 14 InterpolantComputations, 7 PerfectInterpolantSequences, 123/266 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 10:53:31,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...