/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-lit/qw2004-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:35:58,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:35:58,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:35:58,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:35:58,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:35:58,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:35:58,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:35:58,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:35:58,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:35:58,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:35:58,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:35:58,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:35:58,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:35:58,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:35:58,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:35:58,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:35:58,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:35:58,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:35:58,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:35:58,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:35:58,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:35:58,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:35:58,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:35:58,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:35:58,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:35:58,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:35:58,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:35:58,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:35:58,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:35:58,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:35:58,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:35:58,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:35:58,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:35:58,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:35:58,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:35:58,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:35:58,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:35:58,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:35:58,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:35:58,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:35:58,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:35:58,928 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 10:35:58,956 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:35:58,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:35:58,957 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:35:58,957 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:35:58,958 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:35:58,958 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:35:58,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:35:58,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:35:58,958 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:35:58,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:35:58,959 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:35:58,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:35:58,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:35:58,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:35:58,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:35:58,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:35:58,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:35:58,960 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:35:58,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:35:58,960 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:35:58,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:35:58,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:35:58,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:35:58,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:35:58,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:35:58,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:35:58,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:35:58,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:35:58,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:35:58,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:35:58,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:35:58,963 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:35:58,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:35:58,963 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:35:59,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:35:59,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:35:59,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:35:59,240 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:35:59,242 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:35:59,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-1.i [2022-09-16 10:35:59,318 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf757ca66/910882d684c443e6ac9de8249f745a53/FLAG5330eef52 [2022-09-16 10:35:59,797 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:35:59,797 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-1.i [2022-09-16 10:35:59,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf757ca66/910882d684c443e6ac9de8249f745a53/FLAG5330eef52 [2022-09-16 10:36:00,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf757ca66/910882d684c443e6ac9de8249f745a53 [2022-09-16 10:36:00,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:36:00,180 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:36:00,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:36:00,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:36:00,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:36:00,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:36:00" (1/1) ... [2022-09-16 10:36:00,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fb0e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:36:00, skipping insertion in model container [2022-09-16 10:36:00,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:36:00" (1/1) ... [2022-09-16 10:36:00,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:36:00,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:36:00,478 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-1.i[30003,30016] [2022-09-16 10:36:00,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:36:00,500 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:36:00,542 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-1.i[30003,30016] [2022-09-16 10:36:00,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:36:00,579 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:36:00,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:36:00 WrapperNode [2022-09-16 10:36:00,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:36:00,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:36:00,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:36:00,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:36:00,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:36:00" (1/1) ... [2022-09-16 10:36:00,620 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:36:00" (1/1) ... [2022-09-16 10:36:00,651 INFO L138 Inliner]: procedures = 175, calls = 23, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 104 [2022-09-16 10:36:00,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:36:00,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:36:00,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:36:00,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:36:00,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:36:00" (1/1) ... [2022-09-16 10:36:00,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:36:00" (1/1) ... [2022-09-16 10:36:00,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:36:00" (1/1) ... [2022-09-16 10:36:00,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:36:00" (1/1) ... [2022-09-16 10:36:00,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:36:00" (1/1) ... [2022-09-16 10:36:00,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:36:00" (1/1) ... [2022-09-16 10:36:00,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:36:00" (1/1) ... [2022-09-16 10:36:00,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:36:00,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:36:00,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:36:00,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:36:00,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:36:00" (1/1) ... [2022-09-16 10:36:00,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:36:00,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:36:00,757 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 10:36:00,775 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 10:36:00,815 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2022-09-16 10:36:00,815 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2022-09-16 10:36:00,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:36:00,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:36:00,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:36:00,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:36:00,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:36:00,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:36:00,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:36:00,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:36:00,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:36:00,818 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 10:36:00,963 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:36:00,964 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:36:01,175 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:36:01,212 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:36:01,213 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 10:36:01,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:36:01 BoogieIcfgContainer [2022-09-16 10:36:01,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:36:01,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:36:01,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:36:01,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:36:01,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:36:00" (1/3) ... [2022-09-16 10:36:01,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8a5beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:36:01, skipping insertion in model container [2022-09-16 10:36:01,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:36:00" (2/3) ... [2022-09-16 10:36:01,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8a5beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:36:01, skipping insertion in model container [2022-09-16 10:36:01,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:36:01" (3/3) ... [2022-09-16 10:36:01,225 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-1.i [2022-09-16 10:36:01,236 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:36:01,245 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:36:01,245 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 10:36:01,245 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:36:01,322 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 10:36:01,362 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 117 places, 119 transitions, 243 flow [2022-09-16 10:36:01,493 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1423 states, 1409 states have (on average 2.0667139815471964) internal successors, (2912), 1422 states have internal predecessors, (2912), 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 10:36:01,510 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:36:01,516 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;@3de48460, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:36:01,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-09-16 10:36:01,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 1423 states, 1409 states have (on average 2.0667139815471964) internal successors, (2912), 1422 states have internal predecessors, (2912), 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 10:36:01,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-09-16 10:36:01,528 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:36:01,529 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] [2022-09-16 10:36:01,530 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:36:01,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:36:01,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1834499106, now seen corresponding path program 1 times [2022-09-16 10:36:01,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:36:01,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945585145] [2022-09-16 10:36:01,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:36:01,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:36:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:36:01,795 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 10:36:01,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:36:01,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945585145] [2022-09-16 10:36:01,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945585145] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:36:01,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:36:01,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:36:01,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380923527] [2022-09-16 10:36:01,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:36:01,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:36:01,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:36:01,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:36:01,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:36:01,845 INFO L87 Difference]: Start difference. First operand has 1423 states, 1409 states have (on average 2.0667139815471964) internal successors, (2912), 1422 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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 10:36:01,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:36:01,980 INFO L93 Difference]: Finished difference Result 1526 states and 3056 transitions. [2022-09-16 10:36:01,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:36:01,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2022-09-16 10:36:01,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:36:02,012 INFO L225 Difference]: With dead ends: 1526 [2022-09-16 10:36:02,012 INFO L226 Difference]: Without dead ends: 1497 [2022-09-16 10:36:02,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:36:02,017 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 32 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:36:02,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 202 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:36:02,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2022-09-16 10:36:02,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1497. [2022-09-16 10:36:02,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1497 states, 1481 states have (on average 2.0236326806212017) internal successors, (2997), 1496 states have internal predecessors, (2997), 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 10:36:02,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2997 transitions. [2022-09-16 10:36:02,239 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2997 transitions. Word has length 34 [2022-09-16 10:36:02,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:36:02,239 INFO L495 AbstractCegarLoop]: Abstraction has 1497 states and 2997 transitions. [2022-09-16 10:36:02,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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 10:36:02,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2997 transitions. [2022-09-16 10:36:02,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-09-16 10:36:02,242 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:36:02,242 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] [2022-09-16 10:36:02,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:36:02,243 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:36:02,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:36:02,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1781515340, now seen corresponding path program 1 times [2022-09-16 10:36:02,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:36:02,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735407120] [2022-09-16 10:36:02,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:36:02,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:36:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:36:02,325 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 10:36:02,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:36:02,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735407120] [2022-09-16 10:36:02,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735407120] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:36:02,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:36:02,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:36:02,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959540397] [2022-09-16 10:36:02,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:36:02,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:36:02,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:36:02,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:36:02,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:36:02,328 INFO L87 Difference]: Start difference. First operand 1497 states and 2997 transitions. Second operand has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 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 10:36:02,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:36:02,374 INFO L93 Difference]: Finished difference Result 1457 states and 2890 transitions. [2022-09-16 10:36:02,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:36:02,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2022-09-16 10:36:02,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:36:02,380 INFO L225 Difference]: With dead ends: 1457 [2022-09-16 10:36:02,380 INFO L226 Difference]: Without dead ends: 1457 [2022-09-16 10:36:02,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:36:02,384 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 77 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:36:02,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 232 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:36:02,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2022-09-16 10:36:02,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1457. [2022-09-16 10:36:02,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 1445 states have (on average 2.0) internal successors, (2890), 1456 states have internal predecessors, (2890), 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 10:36:02,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2890 transitions. [2022-09-16 10:36:02,409 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2890 transitions. Word has length 45 [2022-09-16 10:36:02,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:36:02,412 INFO L495 AbstractCegarLoop]: Abstraction has 1457 states and 2890 transitions. [2022-09-16 10:36:02,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 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 10:36:02,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2890 transitions. [2022-09-16 10:36:02,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-09-16 10:36:02,421 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:36:02,421 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] [2022-09-16 10:36:02,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:36:02,421 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:36:02,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:36:02,422 INFO L85 PathProgramCache]: Analyzing trace with hash -489915596, now seen corresponding path program 1 times [2022-09-16 10:36:02,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:36:02,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421378061] [2022-09-16 10:36:02,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:36:02,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:36:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:36:02,498 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 10:36:02,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:36:02,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421378061] [2022-09-16 10:36:02,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421378061] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:36:02,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:36:02,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:36:02,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410177629] [2022-09-16 10:36:02,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:36:02,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:36:02,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:36:02,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:36:02,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:36:02,501 INFO L87 Difference]: Start difference. First operand 1457 states and 2890 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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 10:36:02,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:36:02,530 INFO L93 Difference]: Finished difference Result 1384 states and 2743 transitions. [2022-09-16 10:36:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:36:02,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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 45 [2022-09-16 10:36:02,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:36:02,535 INFO L225 Difference]: With dead ends: 1384 [2022-09-16 10:36:02,535 INFO L226 Difference]: Without dead ends: 1384 [2022-09-16 10:36:02,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:36:02,540 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 129 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:36:02,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 211 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:36:02,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2022-09-16 10:36:02,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2022-09-16 10:36:02,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1379 states have (on average 1.9891225525743292) internal successors, (2743), 1383 states have internal predecessors, (2743), 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 10:36:02,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 2743 transitions. [2022-09-16 10:36:02,563 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 2743 transitions. Word has length 45 [2022-09-16 10:36:02,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:36:02,563 INFO L495 AbstractCegarLoop]: Abstraction has 1384 states and 2743 transitions. [2022-09-16 10:36:02,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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 10:36:02,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 2743 transitions. [2022-09-16 10:36:02,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-09-16 10:36:02,565 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:36:02,566 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] [2022-09-16 10:36:02,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:36:02,566 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:36:02,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:36:02,567 INFO L85 PathProgramCache]: Analyzing trace with hash -489915595, now seen corresponding path program 1 times [2022-09-16 10:36:02,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:36:02,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925689354] [2022-09-16 10:36:02,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:36:02,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:36:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:36:02,646 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 10:36:02,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:36:02,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925689354] [2022-09-16 10:36:02,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925689354] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:36:02,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:36:02,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:36:02,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044619075] [2022-09-16 10:36:02,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:36:02,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:36:02,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:36:02,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:36:02,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:36:02,648 INFO L87 Difference]: Start difference. First operand 1384 states and 2743 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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 10:36:02,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:36:02,679 INFO L93 Difference]: Finished difference Result 1353 states and 2680 transitions. [2022-09-16 10:36:02,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:36:02,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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 45 [2022-09-16 10:36:02,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:36:02,685 INFO L225 Difference]: With dead ends: 1353 [2022-09-16 10:36:02,685 INFO L226 Difference]: Without dead ends: 1344 [2022-09-16 10:36:02,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:36:02,688 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 50 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:36:02,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 331 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:36:02,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2022-09-16 10:36:02,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1173. [2022-09-16 10:36:02,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1170 states have (on average 1.9760683760683762) internal successors, (2312), 1172 states have internal predecessors, (2312), 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 10:36:02,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 2312 transitions. [2022-09-16 10:36:02,741 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 2312 transitions. Word has length 45 [2022-09-16 10:36:02,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:36:02,742 INFO L495 AbstractCegarLoop]: Abstraction has 1173 states and 2312 transitions. [2022-09-16 10:36:02,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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 10:36:02,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 2312 transitions. [2022-09-16 10:36:02,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-09-16 10:36:02,745 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:36:02,745 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] [2022-09-16 10:36:02,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 10:36:02,746 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:36:02,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:36:02,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1662007035, now seen corresponding path program 1 times [2022-09-16 10:36:02,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:36:02,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060223869] [2022-09-16 10:36:02,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:36:02,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:36:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:36:02,825 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 10:36:02,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:36:02,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060223869] [2022-09-16 10:36:02,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060223869] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:36:02,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:36:02,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:36:02,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574863478] [2022-09-16 10:36:02,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:36:02,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:36:02,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:36:02,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:36:02,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:36:02,828 INFO L87 Difference]: Start difference. First operand 1173 states and 2312 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 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 10:36:02,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:36:02,902 INFO L93 Difference]: Finished difference Result 1904 states and 3763 transitions. [2022-09-16 10:36:02,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:36:02,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 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 59 [2022-09-16 10:36:02,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:36:02,905 INFO L225 Difference]: With dead ends: 1904 [2022-09-16 10:36:02,905 INFO L226 Difference]: Without dead ends: 847 [2022-09-16 10:36:02,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:36:02,906 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 93 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:36:02,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 361 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:36:02,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2022-09-16 10:36:02,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 847. [2022-09-16 10:36:02,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 844 states have (on average 1.9514218009478672) internal successors, (1647), 846 states have internal predecessors, (1647), 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 10:36:02,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1647 transitions. [2022-09-16 10:36:02,929 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1647 transitions. Word has length 59 [2022-09-16 10:36:02,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:36:02,929 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1647 transitions. [2022-09-16 10:36:02,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 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 10:36:02,929 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1647 transitions. [2022-09-16 10:36:02,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-09-16 10:36:02,931 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:36:02,931 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] [2022-09-16 10:36:02,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:36:02,932 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:36:02,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:36:02,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1388893301, now seen corresponding path program 1 times [2022-09-16 10:36:02,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:36:02,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738702205] [2022-09-16 10:36:02,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:36:02,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:36:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:36:03,005 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 10:36:03,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:36:03,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738702205] [2022-09-16 10:36:03,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738702205] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:36:03,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:36:03,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:36:03,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865048710] [2022-09-16 10:36:03,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:36:03,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:36:03,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:36:03,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:36:03,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:36:03,007 INFO L87 Difference]: Start difference. First operand 847 states and 1647 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 10:36:03,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:36:03,054 INFO L93 Difference]: Finished difference Result 847 states and 1618 transitions. [2022-09-16 10:36:03,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 10:36:03,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2022-09-16 10:36:03,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:36:03,057 INFO L225 Difference]: With dead ends: 847 [2022-09-16 10:36:03,057 INFO L226 Difference]: Without dead ends: 847 [2022-09-16 10:36:03,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:36:03,058 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 194 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:36:03,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 510 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:36:03,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2022-09-16 10:36:03,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 847. [2022-09-16 10:36:03,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 844 states have (on average 1.9170616113744077) internal successors, (1618), 846 states have internal predecessors, (1618), 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 10:36:03,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1618 transitions. [2022-09-16 10:36:03,070 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1618 transitions. Word has length 59 [2022-09-16 10:36:03,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:36:03,070 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1618 transitions. [2022-09-16 10:36:03,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 10:36:03,070 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1618 transitions. [2022-09-16 10:36:03,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-09-16 10:36:03,071 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:36:03,071 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] [2022-09-16 10:36:03,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:36:03,072 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 10:36:03,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:36:03,072 INFO L85 PathProgramCache]: Analyzing trace with hash 2096274476, now seen corresponding path program 1 times [2022-09-16 10:36:03,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:36:03,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390754143] [2022-09-16 10:36:03,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:36:03,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:36:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:36:03,174 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 10:36:03,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:36:03,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390754143] [2022-09-16 10:36:03,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390754143] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:36:03,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:36:03,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:36:03,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922189501] [2022-09-16 10:36:03,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:36:03,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:36:03,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:36:03,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:36:03,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:36:03,177 INFO L87 Difference]: Start difference. First operand 847 states and 1618 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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 10:36:03,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:36:03,195 INFO L93 Difference]: Finished difference Result 807 states and 1538 transitions. [2022-09-16 10:36:03,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:36:03,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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 65 [2022-09-16 10:36:03,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:36:03,212 INFO L225 Difference]: With dead ends: 807 [2022-09-16 10:36:03,212 INFO L226 Difference]: Without dead ends: 0 [2022-09-16 10:36:03,212 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 10:36:03,213 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 99 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:36:03,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 284 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:36:03,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-09-16 10:36:03,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-09-16 10:36:03,215 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 10:36:03,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-09-16 10:36:03,215 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2022-09-16 10:36:03,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:36:03,215 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-16 10:36:03,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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 10:36:03,215 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-09-16 10:36:03,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-09-16 10:36:03,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2022-09-16 10:36:03,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-09-16 10:36:03,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-09-16 10:36:03,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-09-16 10:36:03,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2022-09-16 10:36:03,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-09-16 10:36:03,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2022-09-16 10:36:03,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-09-16 10:36:03,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-09-16 10:36:03,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:36:03,222 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:36:03,227 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 10:36:03,228 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 10:36:03,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 10:36:03 BasicIcfg [2022-09-16 10:36:03,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 10:36:03,230 INFO L158 Benchmark]: Toolchain (without parser) took 3050.14ms. Allocated memory was 200.3MB in the beginning and 253.8MB in the end (delta: 53.5MB). Free memory was 167.8MB in the beginning and 168.6MB in the end (delta: -813.6kB). Peak memory consumption was 53.2MB. Max. memory is 8.0GB. [2022-09-16 10:36:03,230 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 200.3MB. Free memory is still 155.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 10:36:03,231 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.50ms. Allocated memory was 200.3MB in the beginning and 253.8MB in the end (delta: 53.5MB). Free memory was 167.5MB in the beginning and 213.3MB in the end (delta: -45.8MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. [2022-09-16 10:36:03,231 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.12ms. Allocated memory is still 253.8MB. Free memory was 213.3MB in the beginning and 210.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:36:03,231 INFO L158 Benchmark]: Boogie Preprocessor took 37.06ms. Allocated memory is still 253.8MB. Free memory was 210.6MB in the beginning and 209.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:36:03,236 INFO L158 Benchmark]: RCFGBuilder took 525.19ms. Allocated memory is still 253.8MB. Free memory was 209.2MB in the beginning and 192.8MB in the end (delta: 16.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-09-16 10:36:03,236 INFO L158 Benchmark]: TraceAbstraction took 2012.38ms. Allocated memory is still 253.8MB. Free memory was 192.0MB in the beginning and 168.6MB in the end (delta: 23.5MB). Peak memory consumption was 24.7MB. Max. memory is 8.0GB. [2022-09-16 10:36:03,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 200.3MB. Free memory is still 155.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 397.50ms. Allocated memory was 200.3MB in the beginning and 253.8MB in the end (delta: 53.5MB). Free memory was 167.5MB in the beginning and 213.3MB in the end (delta: -45.8MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 71.12ms. Allocated memory is still 253.8MB. Free memory was 213.3MB in the beginning and 210.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.06ms. Allocated memory is still 253.8MB. Free memory was 210.6MB in the beginning and 209.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 525.19ms. Allocated memory is still 253.8MB. Free memory was 209.2MB in the beginning and 192.8MB in the end (delta: 16.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 2012.38ms. Allocated memory is still 253.8MB. Free memory was 192.0MB in the beginning and 168.6MB in the end (delta: 23.5MB). Peak memory consumption was 24.7MB. 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: 714]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 714]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 707]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 707]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 714]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 714]: 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 3 procedures, 146 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 674 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 674 mSDsluCounter, 2131 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1229 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 146 IncrementalHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 925 mSDtfsCounter, 146 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1497occurred in iteration=1, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 171 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 352 NumberOfCodeBlocks, 352 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 345 ConstructedInterpolants, 0 QuantifiedInterpolants, 691 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 10:36:03,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...