/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/triangular-longer-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:17:12,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:17:12,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:17:12,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:17:12,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:17:12,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:17:12,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:17:12,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:17:12,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:17:12,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:17:12,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:17:12,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:17:12,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:17:12,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:17:12,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:17:12,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:17:12,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:17:12,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:17:12,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:17:12,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:17:12,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:17:12,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:17:12,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:17:12,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:17:12,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 10:17:12,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:17:12,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:17:12,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:17:12,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:17:12,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:17:12,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:17:12,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:17:12,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:17:12,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:17:12,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:17:12,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:17:12,912 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 10:17:12,945 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:17:12,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:17:12,945 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:17:12,945 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:17:12,946 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:17:12,946 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:17:12,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:17:12,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:17:12,947 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:17:12,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:17:12,948 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:17:12,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:17:12,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:17:12,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:17:12,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:17:12,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:17:12,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:17:12,949 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:17:12,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:17:12,949 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:17:12,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:17:12,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:17:12,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:17:12,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:17:12,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:17:12,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:17:12,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:17:12,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:17:12,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:17:12,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:17:12,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:17:12,951 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:17:12,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:17:12,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:17:13,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:17:13,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:17:13,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:17:13,218 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:17:13,219 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:17:13,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/triangular-longer-2.i [2022-09-16 10:17:13,292 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c67775a/a0a978672b4c434d9c099432cd12bd9b/FLAG6c4030267 [2022-09-16 10:17:13,754 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:17:13,754 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longer-2.i [2022-09-16 10:17:13,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c67775a/a0a978672b4c434d9c099432cd12bd9b/FLAG6c4030267 [2022-09-16 10:17:14,256 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c67775a/a0a978672b4c434d9c099432cd12bd9b [2022-09-16 10:17:14,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:17:14,259 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:17:14,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:17:14,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:17:14,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:17:14,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:17:14" (1/1) ... [2022-09-16 10:17:14,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ecf2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:17:14, skipping insertion in model container [2022-09-16 10:17:14,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:17:14" (1/1) ... [2022-09-16 10:17:14,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:17:14,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:17:14,588 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/triangular-longer-2.i[30963,30976] [2022-09-16 10:17:14,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:17:14,595 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:17:14,644 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/triangular-longer-2.i[30963,30976] [2022-09-16 10:17:14,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:17:14,682 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:17:14,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:17:14 WrapperNode [2022-09-16 10:17:14,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:17:14,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:17:14,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:17:14,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:17:14,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:17:14" (1/1) ... [2022-09-16 10:17:14,715 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:17:14" (1/1) ... [2022-09-16 10:17:14,733 INFO L138 Inliner]: procedures = 169, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2022-09-16 10:17:14,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:17:14,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:17:14,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:17:14,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:17:14,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:17:14" (1/1) ... [2022-09-16 10:17:14,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:17:14" (1/1) ... [2022-09-16 10:17:14,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:17:14" (1/1) ... [2022-09-16 10:17:14,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:17:14" (1/1) ... [2022-09-16 10:17:14,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:17:14" (1/1) ... [2022-09-16 10:17:14,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:17:14" (1/1) ... [2022-09-16 10:17:14,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:17:14" (1/1) ... [2022-09-16 10:17:14,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:17:14,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:17:14,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:17:14,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:17:14,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:17:14" (1/1) ... [2022-09-16 10:17:14,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:17:14,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:17:14,800 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 10:17:14,815 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 10:17:14,840 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-09-16 10:17:14,840 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-09-16 10:17:14,840 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-09-16 10:17:14,840 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-09-16 10:17:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:17:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:17:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:17:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:17:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:17:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:17:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:17:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:17:14,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:17:14,842 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 10:17:15,004 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:17:15,006 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:17:15,122 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:17:15,141 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:17:15,141 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-09-16 10:17:15,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:17:15 BoogieIcfgContainer [2022-09-16 10:17:15,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:17:15,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:17:15,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:17:15,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:17:15,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:17:14" (1/3) ... [2022-09-16 10:17:15,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ade290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:17:15, skipping insertion in model container [2022-09-16 10:17:15,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:17:14" (2/3) ... [2022-09-16 10:17:15,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ade290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:17:15, skipping insertion in model container [2022-09-16 10:17:15,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:17:15" (3/3) ... [2022-09-16 10:17:15,153 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longer-2.i [2022-09-16 10:17:15,159 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:17:15,167 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:17:15,167 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 10:17:15,167 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:17:15,210 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 10:17:15,234 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 81 transitions, 172 flow [2022-09-16 10:17:15,397 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4071 states, 4047 states have (on average 3.086978008401285) internal successors, (12493), 4070 states have internal predecessors, (12493), 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 10:17:15,420 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:17:15,428 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;@790690bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:17:15,428 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-09-16 10:17:15,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 4071 states, 4047 states have (on average 3.086978008401285) internal successors, (12493), 4070 states have internal predecessors, (12493), 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 10:17:15,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-09-16 10:17:15,450 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:15,450 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] [2022-09-16 10:17:15,451 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:15,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:15,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1934517197, now seen corresponding path program 1 times [2022-09-16 10:17:15,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:15,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690406648] [2022-09-16 10:17:15,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:15,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:15,687 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 10:17:15,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:15,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690406648] [2022-09-16 10:17:15,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690406648] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:17:15,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:17:15,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:17:15,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391179570] [2022-09-16 10:17:15,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:17:15,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:17:15,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:15,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:17:15,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:17:15,728 INFO L87 Difference]: Start difference. First operand has 4071 states, 4047 states have (on average 3.086978008401285) internal successors, (12493), 4070 states have internal predecessors, (12493), 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 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 10:17:15,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:15,855 INFO L93 Difference]: Finished difference Result 5333 states and 15410 transitions. [2022-09-16 10:17:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:17:15,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2022-09-16 10:17:15,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:15,904 INFO L225 Difference]: With dead ends: 5333 [2022-09-16 10:17:15,905 INFO L226 Difference]: Without dead ends: 5333 [2022-09-16 10:17:15,906 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 10:17:15,909 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 47 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:15,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 122 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:17:15,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5333 states. [2022-09-16 10:17:16,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5333 to 4733. [2022-09-16 10:17:16,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4733 states, 4685 states have (on average 3.016008537886873) internal successors, (14130), 4732 states have internal predecessors, (14130), 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 10:17:16,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4733 states to 4733 states and 14130 transitions. [2022-09-16 10:17:16,184 INFO L78 Accepts]: Start accepts. Automaton has 4733 states and 14130 transitions. Word has length 27 [2022-09-16 10:17:16,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:16,184 INFO L495 AbstractCegarLoop]: Abstraction has 4733 states and 14130 transitions. [2022-09-16 10:17:16,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 10:17:16,186 INFO L276 IsEmpty]: Start isEmpty. Operand 4733 states and 14130 transitions. [2022-09-16 10:17:16,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-09-16 10:17:16,186 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:16,186 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] [2022-09-16 10:17:16,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:17:16,187 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:16,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:16,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1934517196, now seen corresponding path program 1 times [2022-09-16 10:17:16,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:16,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282410985] [2022-09-16 10:17:16,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:16,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:16,257 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 10:17:16,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:16,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282410985] [2022-09-16 10:17:16,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282410985] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:17:16,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:17:16,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:17:16,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901307339] [2022-09-16 10:17:16,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:17:16,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:17:16,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:16,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:17:16,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:17:16,260 INFO L87 Difference]: Start difference. First operand 4733 states and 14130 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 10:17:16,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:16,317 INFO L93 Difference]: Finished difference Result 5297 states and 15205 transitions. [2022-09-16 10:17:16,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:17:16,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2022-09-16 10:17:16,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:16,399 INFO L225 Difference]: With dead ends: 5297 [2022-09-16 10:17:16,400 INFO L226 Difference]: Without dead ends: 5297 [2022-09-16 10:17:16,400 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 10:17:16,401 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 46 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:16,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 122 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:17:16,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5297 states. [2022-09-16 10:17:16,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5297 to 4697. [2022-09-16 10:17:16,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4697 states, 4649 states have (on average 2.99526779952678) internal successors, (13925), 4696 states have internal predecessors, (13925), 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 10:17:16,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4697 states to 4697 states and 13925 transitions. [2022-09-16 10:17:16,528 INFO L78 Accepts]: Start accepts. Automaton has 4697 states and 13925 transitions. Word has length 27 [2022-09-16 10:17:16,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:16,530 INFO L495 AbstractCegarLoop]: Abstraction has 4697 states and 13925 transitions. [2022-09-16 10:17:16,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 10:17:16,536 INFO L276 IsEmpty]: Start isEmpty. Operand 4697 states and 13925 transitions. [2022-09-16 10:17:16,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-09-16 10:17:16,537 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:16,537 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] [2022-09-16 10:17:16,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:17:16,538 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:16,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:16,541 INFO L85 PathProgramCache]: Analyzing trace with hash 649821270, now seen corresponding path program 1 times [2022-09-16 10:17:16,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:16,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358028905] [2022-09-16 10:17:16,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:16,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:16,612 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 10:17:16,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:16,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358028905] [2022-09-16 10:17:16,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358028905] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:17:16,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:17:16,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:17:16,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866502366] [2022-09-16 10:17:16,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:17:16,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:17:16,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:16,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:17:16,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:17:16,614 INFO L87 Difference]: Start difference. First operand 4697 states and 13925 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 10:17:16,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:16,791 INFO L93 Difference]: Finished difference Result 7574 states and 22325 transitions. [2022-09-16 10:17:16,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:17:16,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2022-09-16 10:17:16,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:16,842 INFO L225 Difference]: With dead ends: 7574 [2022-09-16 10:17:16,843 INFO L226 Difference]: Without dead ends: 7574 [2022-09-16 10:17:16,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:17:16,848 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 115 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:16,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 321 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:17:16,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7574 states. [2022-09-16 10:17:17,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7574 to 6452. [2022-09-16 10:17:17,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6452 states, 6404 states have (on average 3.0395065584009995) internal successors, (19465), 6451 states have internal predecessors, (19465), 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 10:17:17,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6452 states to 6452 states and 19465 transitions. [2022-09-16 10:17:17,104 INFO L78 Accepts]: Start accepts. Automaton has 6452 states and 19465 transitions. Word has length 29 [2022-09-16 10:17:17,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:17,105 INFO L495 AbstractCegarLoop]: Abstraction has 6452 states and 19465 transitions. [2022-09-16 10:17:17,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 10:17:17,106 INFO L276 IsEmpty]: Start isEmpty. Operand 6452 states and 19465 transitions. [2022-09-16 10:17:17,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-09-16 10:17:17,108 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:17,108 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] [2022-09-16 10:17:17,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:17:17,109 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:17,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:17,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1215262810, now seen corresponding path program 1 times [2022-09-16 10:17:17,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:17,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845436873] [2022-09-16 10:17:17,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:17,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:17,179 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 10:17:17,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:17,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845436873] [2022-09-16 10:17:17,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845436873] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:17:17,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:17:17,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:17:17,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750618674] [2022-09-16 10:17:17,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:17:17,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:17:17,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:17,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:17:17,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:17:17,181 INFO L87 Difference]: Start difference. First operand 6452 states and 19465 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 10:17:17,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:17,254 INFO L93 Difference]: Finished difference Result 7097 states and 20637 transitions. [2022-09-16 10:17:17,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:17:17,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2022-09-16 10:17:17,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:17,282 INFO L225 Difference]: With dead ends: 7097 [2022-09-16 10:17:17,282 INFO L226 Difference]: Without dead ends: 7097 [2022-09-16 10:17:17,282 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 10:17:17,290 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 41 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:17,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 129 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:17:17,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7097 states. [2022-09-16 10:17:17,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7097 to 6542. [2022-09-16 10:17:17,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6542 states, 6494 states have (on average 3.0195565137049583) internal successors, (19609), 6541 states have internal predecessors, (19609), 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 10:17:17,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6542 states to 6542 states and 19609 transitions. [2022-09-16 10:17:17,527 INFO L78 Accepts]: Start accepts. Automaton has 6542 states and 19609 transitions. Word has length 33 [2022-09-16 10:17:17,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:17,528 INFO L495 AbstractCegarLoop]: Abstraction has 6542 states and 19609 transitions. [2022-09-16 10:17:17,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 10:17:17,529 INFO L276 IsEmpty]: Start isEmpty. Operand 6542 states and 19609 transitions. [2022-09-16 10:17:17,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-09-16 10:17:17,535 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:17,535 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] [2022-09-16 10:17:17,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 10:17:17,535 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:17,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:17,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1215262809, now seen corresponding path program 1 times [2022-09-16 10:17:17,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:17,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157686880] [2022-09-16 10:17:17,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:17,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:17,612 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 10:17:17,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:17,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157686880] [2022-09-16 10:17:17,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157686880] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:17:17,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:17:17,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:17:17,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874652410] [2022-09-16 10:17:17,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:17:17,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:17:17,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:17,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:17:17,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:17:17,614 INFO L87 Difference]: Start difference. First operand 6542 states and 19609 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 10:17:17,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:17,676 INFO L93 Difference]: Finished difference Result 6887 states and 20051 transitions. [2022-09-16 10:17:17,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:17:17,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2022-09-16 10:17:17,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:17,759 INFO L225 Difference]: With dead ends: 6887 [2022-09-16 10:17:17,760 INFO L226 Difference]: Without dead ends: 6887 [2022-09-16 10:17:17,760 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 10:17:17,761 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 40 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:17,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 129 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:17:17,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6887 states. [2022-09-16 10:17:17,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6887 to 6422. [2022-09-16 10:17:17,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6422 states, 6374 states have (on average 3.0117665516159398) internal successors, (19197), 6421 states have internal predecessors, (19197), 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 10:17:17,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6422 states to 6422 states and 19197 transitions. [2022-09-16 10:17:17,931 INFO L78 Accepts]: Start accepts. Automaton has 6422 states and 19197 transitions. Word has length 33 [2022-09-16 10:17:17,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:17,932 INFO L495 AbstractCegarLoop]: Abstraction has 6422 states and 19197 transitions. [2022-09-16 10:17:17,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 10:17:17,932 INFO L276 IsEmpty]: Start isEmpty. Operand 6422 states and 19197 transitions. [2022-09-16 10:17:17,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-09-16 10:17:17,933 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:17,933 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] [2022-09-16 10:17:17,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:17:17,933 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:17,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:17,934 INFO L85 PathProgramCache]: Analyzing trace with hash 363553065, now seen corresponding path program 1 times [2022-09-16 10:17:17,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:17,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887082817] [2022-09-16 10:17:17,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:17,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:18,027 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 10:17:18,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:18,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887082817] [2022-09-16 10:17:18,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887082817] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:17:18,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:17:18,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:17:18,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203270767] [2022-09-16 10:17:18,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:17:18,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:17:18,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:18,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:17:18,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:17:18,029 INFO L87 Difference]: Start difference. First operand 6422 states and 19197 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 10:17:18,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:18,116 INFO L93 Difference]: Finished difference Result 7817 states and 23019 transitions. [2022-09-16 10:17:18,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:17:18,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 35 [2022-09-16 10:17:18,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:18,142 INFO L225 Difference]: With dead ends: 7817 [2022-09-16 10:17:18,142 INFO L226 Difference]: Without dead ends: 7817 [2022-09-16 10:17:18,142 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 10:17:18,143 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 97 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:18,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 298 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:17:18,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7817 states. [2022-09-16 10:17:18,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7817 to 6977. [2022-09-16 10:17:18,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6977 states, 6929 states have (on average 3.0011545677586953) internal successors, (20795), 6976 states have internal predecessors, (20795), 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 10:17:18,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6977 states to 6977 states and 20795 transitions. [2022-09-16 10:17:18,403 INFO L78 Accepts]: Start accepts. Automaton has 6977 states and 20795 transitions. Word has length 35 [2022-09-16 10:17:18,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:18,404 INFO L495 AbstractCegarLoop]: Abstraction has 6977 states and 20795 transitions. [2022-09-16 10:17:18,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 10:17:18,404 INFO L276 IsEmpty]: Start isEmpty. Operand 6977 states and 20795 transitions. [2022-09-16 10:17:18,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-09-16 10:17:18,405 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:18,405 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:17:18,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:17:18,405 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:18,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:18,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1964963806, now seen corresponding path program 1 times [2022-09-16 10:17:18,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:18,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531071145] [2022-09-16 10:17:18,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:18,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:18,440 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:17:18,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:18,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531071145] [2022-09-16 10:17:18,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531071145] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:17:18,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:17:18,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:17:18,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373846954] [2022-09-16 10:17:18,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:17:18,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:17:18,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:18,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:17:18,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:17:18,443 INFO L87 Difference]: Start difference. First operand 6977 states and 20795 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 10:17:18,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:18,516 INFO L93 Difference]: Finished difference Result 6656 states and 19799 transitions. [2022-09-16 10:17:18,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:17:18,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 36 [2022-09-16 10:17:18,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:18,540 INFO L225 Difference]: With dead ends: 6656 [2022-09-16 10:17:18,541 INFO L226 Difference]: Without dead ends: 6656 [2022-09-16 10:17:18,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 10:17:18,542 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 117 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:18,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 311 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:17:18,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6656 states. [2022-09-16 10:17:18,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6656 to 6656. [2022-09-16 10:17:18,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6656 states, 6618 states have (on average 2.991689332124509) internal successors, (19799), 6655 states have internal predecessors, (19799), 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 10:17:18,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6656 states to 6656 states and 19799 transitions. [2022-09-16 10:17:18,722 INFO L78 Accepts]: Start accepts. Automaton has 6656 states and 19799 transitions. Word has length 36 [2022-09-16 10:17:18,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:18,722 INFO L495 AbstractCegarLoop]: Abstraction has 6656 states and 19799 transitions. [2022-09-16 10:17:18,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 10:17:18,723 INFO L276 IsEmpty]: Start isEmpty. Operand 6656 states and 19799 transitions. [2022-09-16 10:17:18,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-09-16 10:17:18,724 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:18,725 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] [2022-09-16 10:17:18,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:17:18,725 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:18,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:18,725 INFO L85 PathProgramCache]: Analyzing trace with hash -66347459, now seen corresponding path program 1 times [2022-09-16 10:17:18,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:18,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854700646] [2022-09-16 10:17:18,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:18,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:18,773 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 10:17:18,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:18,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854700646] [2022-09-16 10:17:18,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854700646] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:17:18,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:17:18,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:17:18,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962110622] [2022-09-16 10:17:18,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:17:18,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:17:18,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:18,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:17:18,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:17:18,775 INFO L87 Difference]: Start difference. First operand 6656 states and 19799 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 10:17:18,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:18,906 INFO L93 Difference]: Finished difference Result 10721 states and 31153 transitions. [2022-09-16 10:17:18,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:17:18,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 37 [2022-09-16 10:17:18,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:18,940 INFO L225 Difference]: With dead ends: 10721 [2022-09-16 10:17:18,941 INFO L226 Difference]: Without dead ends: 10721 [2022-09-16 10:17:18,941 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 10:17:18,941 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 151 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:18,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 189 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:17:18,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10721 states. [2022-09-16 10:17:19,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10721 to 8906. [2022-09-16 10:17:19,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8906 states, 8868 states have (on average 3.069914298601714) internal successors, (27224), 8905 states have internal predecessors, (27224), 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 10:17:19,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8906 states to 8906 states and 27224 transitions. [2022-09-16 10:17:19,172 INFO L78 Accepts]: Start accepts. Automaton has 8906 states and 27224 transitions. Word has length 37 [2022-09-16 10:17:19,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:19,172 INFO L495 AbstractCegarLoop]: Abstraction has 8906 states and 27224 transitions. [2022-09-16 10:17:19,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 10:17:19,173 INFO L276 IsEmpty]: Start isEmpty. Operand 8906 states and 27224 transitions. [2022-09-16 10:17:19,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-09-16 10:17:19,174 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:19,174 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] [2022-09-16 10:17:19,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 10:17:19,174 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:19,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:19,175 INFO L85 PathProgramCache]: Analyzing trace with hash -66347458, now seen corresponding path program 1 times [2022-09-16 10:17:19,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:19,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893875351] [2022-09-16 10:17:19,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:19,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:19,211 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 10:17:19,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:19,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893875351] [2022-09-16 10:17:19,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893875351] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:17:19,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:17:19,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:17:19,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738013722] [2022-09-16 10:17:19,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:17:19,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:17:19,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:19,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:17:19,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:17:19,214 INFO L87 Difference]: Start difference. First operand 8906 states and 27224 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 10:17:19,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:19,353 INFO L93 Difference]: Finished difference Result 12071 states and 35563 transitions. [2022-09-16 10:17:19,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:17:19,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 37 [2022-09-16 10:17:19,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:19,394 INFO L225 Difference]: With dead ends: 12071 [2022-09-16 10:17:19,394 INFO L226 Difference]: Without dead ends: 12071 [2022-09-16 10:17:19,395 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 10:17:19,395 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 117 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:19,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 240 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:17:19,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12071 states. [2022-09-16 10:17:19,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12071 to 11111. [2022-09-16 10:17:19,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11111 states, 11073 states have (on average 3.0494897498419578) internal successors, (33767), 11110 states have internal predecessors, (33767), 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 10:17:19,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11111 states to 11111 states and 33767 transitions. [2022-09-16 10:17:19,668 INFO L78 Accepts]: Start accepts. Automaton has 11111 states and 33767 transitions. Word has length 37 [2022-09-16 10:17:19,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:19,668 INFO L495 AbstractCegarLoop]: Abstraction has 11111 states and 33767 transitions. [2022-09-16 10:17:19,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 10:17:19,668 INFO L276 IsEmpty]: Start isEmpty. Operand 11111 states and 33767 transitions. [2022-09-16 10:17:19,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-09-16 10:17:19,669 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:19,669 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] [2022-09-16 10:17:19,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 10:17:19,672 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:19,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:19,679 INFO L85 PathProgramCache]: Analyzing trace with hash -66346949, now seen corresponding path program 1 times [2022-09-16 10:17:19,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:19,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307173094] [2022-09-16 10:17:19,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:19,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:19,726 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 10:17:19,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:19,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307173094] [2022-09-16 10:17:19,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307173094] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:17:19,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:17:19,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:17:19,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165505753] [2022-09-16 10:17:19,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:17:19,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:17:19,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:19,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:17:19,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:17:19,728 INFO L87 Difference]: Start difference. First operand 11111 states and 33767 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 10:17:19,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:19,905 INFO L93 Difference]: Finished difference Result 14516 states and 43065 transitions. [2022-09-16 10:17:19,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:17:19,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 37 [2022-09-16 10:17:19,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:19,949 INFO L225 Difference]: With dead ends: 14516 [2022-09-16 10:17:19,949 INFO L226 Difference]: Without dead ends: 14516 [2022-09-16 10:17:19,950 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 10:17:19,950 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 114 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:19,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 258 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:17:19,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14516 states. [2022-09-16 10:17:20,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14516 to 13166. [2022-09-16 10:17:20,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13166 states, 13128 states have (on average 3.058729433272395) internal successors, (40155), 13165 states have internal predecessors, (40155), 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 10:17:20,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13166 states to 13166 states and 40155 transitions. [2022-09-16 10:17:20,265 INFO L78 Accepts]: Start accepts. Automaton has 13166 states and 40155 transitions. Word has length 37 [2022-09-16 10:17:20,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:20,266 INFO L495 AbstractCegarLoop]: Abstraction has 13166 states and 40155 transitions. [2022-09-16 10:17:20,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 10:17:20,266 INFO L276 IsEmpty]: Start isEmpty. Operand 13166 states and 40155 transitions. [2022-09-16 10:17:20,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-09-16 10:17:20,267 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:20,267 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] [2022-09-16 10:17:20,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-16 10:17:20,267 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:20,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:20,268 INFO L85 PathProgramCache]: Analyzing trace with hash -66346948, now seen corresponding path program 1 times [2022-09-16 10:17:20,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:20,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902672878] [2022-09-16 10:17:20,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:20,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:20,299 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 10:17:20,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:20,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902672878] [2022-09-16 10:17:20,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902672878] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:17:20,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:17:20,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:17:20,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570239744] [2022-09-16 10:17:20,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:17:20,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:17:20,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:20,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:17:20,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:17:20,301 INFO L87 Difference]: Start difference. First operand 13166 states and 40155 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 10:17:20,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:20,463 INFO L93 Difference]: Finished difference Result 12386 states and 37507 transitions. [2022-09-16 10:17:20,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:17:20,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 37 [2022-09-16 10:17:20,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:20,496 INFO L225 Difference]: With dead ends: 12386 [2022-09-16 10:17:20,496 INFO L226 Difference]: Without dead ends: 12386 [2022-09-16 10:17:20,497 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 10:17:20,497 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 95 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:20,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 81 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:17:20,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12386 states. [2022-09-16 10:17:20,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12386 to 10091. [2022-09-16 10:17:20,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10091 states, 10069 states have (on average 3.0310855099811302) internal successors, (30520), 10090 states have internal predecessors, (30520), 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 10:17:20,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10091 states to 10091 states and 30520 transitions. [2022-09-16 10:17:20,758 INFO L78 Accepts]: Start accepts. Automaton has 10091 states and 30520 transitions. Word has length 37 [2022-09-16 10:17:20,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:20,758 INFO L495 AbstractCegarLoop]: Abstraction has 10091 states and 30520 transitions. [2022-09-16 10:17:20,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 10:17:20,758 INFO L276 IsEmpty]: Start isEmpty. Operand 10091 states and 30520 transitions. [2022-09-16 10:17:20,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-09-16 10:17:20,760 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:20,760 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:17:20,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 10:17:20,760 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:20,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:20,761 INFO L85 PathProgramCache]: Analyzing trace with hash 784336079, now seen corresponding path program 1 times [2022-09-16 10:17:20,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:20,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335736283] [2022-09-16 10:17:20,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:20,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:20,827 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:20,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:20,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335736283] [2022-09-16 10:17:20,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335736283] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:17:20,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437548779] [2022-09-16 10:17:20,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:20,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:17:20,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:17:20,838 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 10:17:20,869 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 10:17:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:20,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:17:20,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:17:20,993 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:20,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:17:20,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437548779] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:17:20,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:17:20,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:17:20,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177205918] [2022-09-16 10:17:20,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:17:20,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:17:20,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:20,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:17:20,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:17:20,996 INFO L87 Difference]: Start difference. First operand 10091 states and 30520 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 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 10:17:21,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:21,110 INFO L93 Difference]: Finished difference Result 10937 states and 32801 transitions. [2022-09-16 10:17:21,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:17:21,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 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 37 [2022-09-16 10:17:21,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:21,147 INFO L225 Difference]: With dead ends: 10937 [2022-09-16 10:17:21,147 INFO L226 Difference]: Without dead ends: 10217 [2022-09-16 10:17:21,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 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 10:17:21,148 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 191 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:21,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 597 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:17:21,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10217 states. [2022-09-16 10:17:21,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10217 to 7157. [2022-09-16 10:17:21,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7157 states, 7143 states have (on average 3.016379672406552) internal successors, (21546), 7156 states have internal predecessors, (21546), 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 10:17:21,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7157 states to 7157 states and 21546 transitions. [2022-09-16 10:17:21,468 INFO L78 Accepts]: Start accepts. Automaton has 7157 states and 21546 transitions. Word has length 37 [2022-09-16 10:17:21,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:21,468 INFO L495 AbstractCegarLoop]: Abstraction has 7157 states and 21546 transitions. [2022-09-16 10:17:21,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 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 10:17:21,468 INFO L276 IsEmpty]: Start isEmpty. Operand 7157 states and 21546 transitions. [2022-09-16 10:17:21,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-09-16 10:17:21,470 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:21,471 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:17:21,496 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 10:17:21,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-09-16 10:17:21,694 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:21,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:21,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1998744924, now seen corresponding path program 1 times [2022-09-16 10:17:21,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:21,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698990344] [2022-09-16 10:17:21,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:21,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:21,723 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:17:21,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:21,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698990344] [2022-09-16 10:17:21,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698990344] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:17:21,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:17:21,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:17:21,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952080011] [2022-09-16 10:17:21,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:17:21,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:17:21,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:21,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:17:21,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:17:21,725 INFO L87 Difference]: Start difference. First operand 7157 states and 21546 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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 10:17:21,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:21,777 INFO L93 Difference]: Finished difference Result 6842 states and 20427 transitions. [2022-09-16 10:17:21,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:17:21,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2022-09-16 10:17:21,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:21,798 INFO L225 Difference]: With dead ends: 6842 [2022-09-16 10:17:21,798 INFO L226 Difference]: Without dead ends: 6842 [2022-09-16 10:17:21,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 10:17:21,799 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 89 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:21,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 277 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:17:21,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6842 states. [2022-09-16 10:17:21,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6842 to 6842. [2022-09-16 10:17:21,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6842 states, 6832 states have (on average 2.989900468384075) internal successors, (20427), 6841 states have internal predecessors, (20427), 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 10:17:21,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6842 states to 6842 states and 20427 transitions. [2022-09-16 10:17:21,928 INFO L78 Accepts]: Start accepts. Automaton has 6842 states and 20427 transitions. Word has length 42 [2022-09-16 10:17:21,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:21,928 INFO L495 AbstractCegarLoop]: Abstraction has 6842 states and 20427 transitions. [2022-09-16 10:17:21,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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 10:17:21,928 INFO L276 IsEmpty]: Start isEmpty. Operand 6842 states and 20427 transitions. [2022-09-16 10:17:21,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-09-16 10:17:21,931 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:21,931 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:17:21,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-09-16 10:17:21,931 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:21,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:21,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1831550754, now seen corresponding path program 1 times [2022-09-16 10:17:21,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:21,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436873813] [2022-09-16 10:17:21,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:21,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:21,986 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:21,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:21,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436873813] [2022-09-16 10:17:21,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436873813] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:17:21,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923479015] [2022-09-16 10:17:21,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:21,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:17:21,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:17:21,988 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 10:17:21,989 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 10:17:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:22,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:17:22,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:17:22,104 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:22,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:17:22,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923479015] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:17:22,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:17:22,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:17:22,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381067958] [2022-09-16 10:17:22,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:17:22,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:17:22,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:22,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:17:22,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:17:22,108 INFO L87 Difference]: Start difference. First operand 6842 states and 20427 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 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 10:17:22,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:22,198 INFO L93 Difference]: Finished difference Result 7517 states and 22242 transitions. [2022-09-16 10:17:22,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:17:22,199 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 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 43 [2022-09-16 10:17:22,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:22,218 INFO L225 Difference]: With dead ends: 7517 [2022-09-16 10:17:22,218 INFO L226 Difference]: Without dead ends: 6779 [2022-09-16 10:17:22,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 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 10:17:22,219 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 147 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:22,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 482 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:17:22,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6779 states. [2022-09-16 10:17:22,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6779 to 4529. [2022-09-16 10:17:22,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4529 states, 4523 states have (on average 2.966836170683175) internal successors, (13419), 4528 states have internal predecessors, (13419), 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 10:17:22,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 13419 transitions. [2022-09-16 10:17:22,319 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 13419 transitions. Word has length 43 [2022-09-16 10:17:22,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:22,319 INFO L495 AbstractCegarLoop]: Abstraction has 4529 states and 13419 transitions. [2022-09-16 10:17:22,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 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 10:17:22,319 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 13419 transitions. [2022-09-16 10:17:22,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-09-16 10:17:22,322 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:22,322 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:17:22,346 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 10:17:22,544 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,SelfDestructingSolverStorable13 [2022-09-16 10:17:22,544 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:22,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:22,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1473894513, now seen corresponding path program 1 times [2022-09-16 10:17:22,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:22,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611467105] [2022-09-16 10:17:22,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:22,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:22,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:22,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:22,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611467105] [2022-09-16 10:17:22,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611467105] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:17:22,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431205281] [2022-09-16 10:17:22,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:22,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:17:22,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:17:22,599 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 10:17:22,600 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 10:17:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:22,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:17:22,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:17:22,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:22,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:17:22,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:22,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431205281] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:17:22,779 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:17:22,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-09-16 10:17:22,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656528676] [2022-09-16 10:17:22,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:17:22,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 10:17:22,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:22,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 10:17:22,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:17:22,781 INFO L87 Difference]: Start difference. First operand 4529 states and 13419 transitions. Second operand has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 8 states have internal predecessors, (79), 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 10:17:22,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:22,912 INFO L93 Difference]: Finished difference Result 8879 states and 26044 transitions. [2022-09-16 10:17:22,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:17:22,913 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 8 states have internal predecessors, (79), 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 44 [2022-09-16 10:17:22,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:22,932 INFO L225 Difference]: With dead ends: 8879 [2022-09-16 10:17:22,932 INFO L226 Difference]: Without dead ends: 6989 [2022-09-16 10:17:22,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:17:22,933 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 454 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:22,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 245 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:17:22,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6989 states. [2022-09-16 10:17:23,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6989 to 5552. [2022-09-16 10:17:23,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5552 states, 5546 states have (on average 2.9329246303642265) internal successors, (16266), 5551 states have internal predecessors, (16266), 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 10:17:23,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5552 states to 5552 states and 16266 transitions. [2022-09-16 10:17:23,042 INFO L78 Accepts]: Start accepts. Automaton has 5552 states and 16266 transitions. Word has length 44 [2022-09-16 10:17:23,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:23,043 INFO L495 AbstractCegarLoop]: Abstraction has 5552 states and 16266 transitions. [2022-09-16 10:17:23,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 8 states have internal predecessors, (79), 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 10:17:23,043 INFO L276 IsEmpty]: Start isEmpty. Operand 5552 states and 16266 transitions. [2022-09-16 10:17:23,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-09-16 10:17:23,049 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:23,049 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 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] [2022-09-16 10:17:23,072 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 10:17:23,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:17:23,263 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:23,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:23,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1713352159, now seen corresponding path program 1 times [2022-09-16 10:17:23,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:23,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788732713] [2022-09-16 10:17:23,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:23,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:23,316 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:23,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:23,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788732713] [2022-09-16 10:17:23,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788732713] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:17:23,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542886480] [2022-09-16 10:17:23,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:23,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:17:23,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:17:23,318 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:17:23,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 10:17:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:23,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:17:23,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:17:23,456 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:23,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:17:23,557 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:23,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542886480] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:17:23,557 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:17:23,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-09-16 10:17:23,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798282361] [2022-09-16 10:17:23,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:17:23,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 10:17:23,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:23,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 10:17:23,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:17:23,559 INFO L87 Difference]: Start difference. First operand 5552 states and 16266 transitions. Second operand has 12 states, 11 states have (on average 9.818181818181818) internal successors, (108), 12 states have internal predecessors, (108), 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 10:17:23,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:23,745 INFO L93 Difference]: Finished difference Result 13439 states and 39180 transitions. [2022-09-16 10:17:23,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-16 10:17:23,746 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.818181818181818) internal successors, (108), 12 states have internal predecessors, (108), 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 58 [2022-09-16 10:17:23,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:23,771 INFO L225 Difference]: With dead ends: 13439 [2022-09-16 10:17:23,772 INFO L226 Difference]: Without dead ends: 10919 [2022-09-16 10:17:23,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=267, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:17:23,773 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 578 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:23,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 498 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:17:23,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10919 states. [2022-09-16 10:17:23,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10919 to 8504. [2022-09-16 10:17:23,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 8500 states have (on average 2.9116470588235295) internal successors, (24749), 8503 states have internal predecessors, (24749), 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 10:17:23,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 24749 transitions. [2022-09-16 10:17:23,951 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 24749 transitions. Word has length 58 [2022-09-16 10:17:23,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:23,951 INFO L495 AbstractCegarLoop]: Abstraction has 8504 states and 24749 transitions. [2022-09-16 10:17:23,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.818181818181818) internal successors, (108), 12 states have internal predecessors, (108), 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 10:17:23,951 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 24749 transitions. [2022-09-16 10:17:23,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-09-16 10:17:23,966 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:23,966 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-09-16 10:17:23,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-16 10:17:24,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-09-16 10:17:24,183 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:24,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:24,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1058593289, now seen corresponding path program 1 times [2022-09-16 10:17:24,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:24,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463663835] [2022-09-16 10:17:24,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:24,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:24,250 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:24,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:24,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463663835] [2022-09-16 10:17:24,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463663835] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:17:24,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621540604] [2022-09-16 10:17:24,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:24,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:17:24,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:17:24,252 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:17:24,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-16 10:17:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:24,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjunts are in the unsatisfiable core [2022-09-16 10:17:24,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:17:24,411 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:24,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:17:24,548 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:24,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621540604] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:17:24,548 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:17:24,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-09-16 10:17:24,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624817211] [2022-09-16 10:17:24,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:17:24,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-09-16 10:17:24,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:24,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-09-16 10:17:24,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-09-16 10:17:24,550 INFO L87 Difference]: Start difference. First operand 8504 states and 24749 transitions. Second operand has 16 states, 15 states have (on average 9.0) internal successors, (135), 16 states have internal predecessors, (135), 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 10:17:24,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:24,883 INFO L93 Difference]: Finished difference Result 19004 states and 55234 transitions. [2022-09-16 10:17:24,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-09-16 10:17:24,883 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.0) internal successors, (135), 16 states have internal predecessors, (135), 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 72 [2022-09-16 10:17:24,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:24,910 INFO L225 Difference]: With dead ends: 19004 [2022-09-16 10:17:24,910 INFO L226 Difference]: Without dead ends: 16799 [2022-09-16 10:17:24,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=259, Invalid=497, Unknown=0, NotChecked=0, Total=756 [2022-09-16 10:17:24,911 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 1172 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:24,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1172 Valid, 538 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:17:24,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16799 states. [2022-09-16 10:17:25,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16799 to 11312. [2022-09-16 10:17:25,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11312 states, 11308 states have (on average 2.9180226388397594) internal successors, (32997), 11311 states have internal predecessors, (32997), 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 10:17:25,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11312 states to 11312 states and 32997 transitions. [2022-09-16 10:17:25,121 INFO L78 Accepts]: Start accepts. Automaton has 11312 states and 32997 transitions. Word has length 72 [2022-09-16 10:17:25,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:25,121 INFO L495 AbstractCegarLoop]: Abstraction has 11312 states and 32997 transitions. [2022-09-16 10:17:25,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.0) internal successors, (135), 16 states have internal predecessors, (135), 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 10:17:25,121 INFO L276 IsEmpty]: Start isEmpty. Operand 11312 states and 32997 transitions. [2022-09-16 10:17:25,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-09-16 10:17:25,142 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:25,143 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:17:25,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-16 10:17:25,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-09-16 10:17:25,365 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:25,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:25,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1457526165, now seen corresponding path program 2 times [2022-09-16 10:17:25,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:25,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211632734] [2022-09-16 10:17:25,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:25,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:25,509 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:25,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:25,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211632734] [2022-09-16 10:17:25,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211632734] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:17:25,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091597783] [2022-09-16 10:17:25,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:17:25,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:17:25,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:17:25,512 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:17:25,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 10:17:25,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:17:25,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:17:25,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 14 conjunts are in the unsatisfiable core [2022-09-16 10:17:25,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:17:25,730 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:25,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:17:26,065 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:26,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091597783] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:17:26,066 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:17:26,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2022-09-16 10:17:26,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824498100] [2022-09-16 10:17:26,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:17:26,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-09-16 10:17:26,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:26,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-09-16 10:17:26,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2022-09-16 10:17:26,068 INFO L87 Difference]: Start difference. First operand 11312 states and 32997 transitions. Second operand has 28 states, 27 states have (on average 8.148148148148149) internal successors, (220), 28 states have internal predecessors, (220), 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 10:17:26,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:26,656 INFO L93 Difference]: Finished difference Result 32654 states and 95004 transitions. [2022-09-16 10:17:26,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-09-16 10:17:26,657 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 8.148148148148149) internal successors, (220), 28 states have internal predecessors, (220), 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 114 [2022-09-16 10:17:26,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:26,709 INFO L225 Difference]: With dead ends: 32654 [2022-09-16 10:17:26,709 INFO L226 Difference]: Without dead ends: 28559 [2022-09-16 10:17:26,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=921, Invalid=1835, Unknown=0, NotChecked=0, Total=2756 [2022-09-16 10:17:26,711 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 2597 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2597 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:26,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2597 Valid, 929 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:17:26,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28559 states. [2022-09-16 10:17:27,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28559 to 20264. [2022-09-16 10:17:27,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20264 states, 20260 states have (on average 2.924234945705824) internal successors, (59245), 20263 states have internal predecessors, (59245), 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 10:17:27,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20264 states to 20264 states and 59245 transitions. [2022-09-16 10:17:27,115 INFO L78 Accepts]: Start accepts. Automaton has 20264 states and 59245 transitions. Word has length 114 [2022-09-16 10:17:27,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:27,115 INFO L495 AbstractCegarLoop]: Abstraction has 20264 states and 59245 transitions. [2022-09-16 10:17:27,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 8.148148148148149) internal successors, (220), 28 states have internal predecessors, (220), 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 10:17:27,116 INFO L276 IsEmpty]: Start isEmpty. Operand 20264 states and 59245 transitions. [2022-09-16 10:17:27,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-09-16 10:17:27,152 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:17:27,153 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:17:27,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-16 10:17:27,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-09-16 10:17:27,355 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:17:27,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:17:27,355 INFO L85 PathProgramCache]: Analyzing trace with hash -2041288177, now seen corresponding path program 2 times [2022-09-16 10:17:27,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:17:27,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9552660] [2022-09-16 10:17:27,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:17:27,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:17:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:17:27,657 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 742 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:17:27,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:17:27,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9552660] [2022-09-16 10:17:27,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9552660] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:17:27,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786577812] [2022-09-16 10:17:27,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:17:27,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:17:27,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:17:27,659 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:17:27,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 10:17:27,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:17:27,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:17:27,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 22 conjunts are in the unsatisfiable core [2022-09-16 10:17:27,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:17:28,276 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 737 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-09-16 10:17:28,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:17:28,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786577812] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:17:28,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:17:28,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [24] total 46 [2022-09-16 10:17:28,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581601734] [2022-09-16 10:17:28,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:17:28,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-09-16 10:17:28,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:17:28,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-09-16 10:17:28,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=1760, Unknown=0, NotChecked=0, Total=2070 [2022-09-16 10:17:28,279 INFO L87 Difference]: Start difference. First operand 20264 states and 59245 transitions. Second operand has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 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 10:17:29,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:17:29,382 INFO L93 Difference]: Finished difference Result 103904 states and 302204 transitions. [2022-09-16 10:17:29,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-09-16 10:17:29,383 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 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 184 [2022-09-16 10:17:29,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:17:29,383 INFO L225 Difference]: With dead ends: 103904 [2022-09-16 10:17:29,383 INFO L226 Difference]: Without dead ends: 0 [2022-09-16 10:17:29,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 794 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=770, Invalid=3520, Unknown=0, NotChecked=0, Total=4290 [2022-09-16 10:17:29,385 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 624 mSDsluCounter, 2356 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:17:29,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 2749 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:17:29,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-09-16 10:17:29,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-09-16 10:17:29,386 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 10:17:29,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-09-16 10:17:29,386 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 184 [2022-09-16 10:17:29,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:17:29,386 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-16 10:17:29,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 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 10:17:29,386 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-09-16 10:17:29,386 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-09-16 10:17:29,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2022-09-16 10:17:29,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 18 remaining) [2022-09-16 10:17:29,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-09-16 10:17:29,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-09-16 10:17:29,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-09-16 10:17:29,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-09-16 10:17:29,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-09-16 10:17:29,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-09-16 10:17:29,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-09-16 10:17:29,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-09-16 10:17:29,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-09-16 10:17:29,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-09-16 10:17:29,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-09-16 10:17:29,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-09-16 10:17:29,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-09-16 10:17:29,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-09-16 10:17:29,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-09-16 10:17:29,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-09-16 10:17:29,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-16 10:17:29,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:17:29,617 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:17:29,621 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 10:17:29,621 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 10:17:29,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 10:17:29 BasicIcfg [2022-09-16 10:17:29,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 10:17:29,625 INFO L158 Benchmark]: Toolchain (without parser) took 15364.20ms. Allocated memory was 198.2MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 166.4MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 402.1MB. Max. memory is 8.0GB. [2022-09-16 10:17:29,625 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 198.2MB. Free memory is still 152.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 10:17:29,626 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.11ms. Allocated memory was 198.2MB in the beginning and 281.0MB in the end (delta: 82.8MB). Free memory was 166.2MB in the beginning and 241.5MB in the end (delta: -75.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-16 10:17:29,626 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.35ms. Allocated memory is still 281.0MB. Free memory was 241.5MB in the beginning and 239.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 10:17:29,626 INFO L158 Benchmark]: Boogie Preprocessor took 31.04ms. Allocated memory is still 281.0MB. Free memory was 239.8MB in the beginning and 238.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:17:29,627 INFO L158 Benchmark]: RCFGBuilder took 377.95ms. Allocated memory is still 281.0MB. Free memory was 238.3MB in the beginning and 224.2MB in the end (delta: 14.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-09-16 10:17:29,631 INFO L158 Benchmark]: TraceAbstraction took 14477.91ms. Allocated memory was 281.0MB in the beginning and 2.9GB in the end (delta: 2.6GB). Free memory was 223.7MB in the beginning and 2.4GB in the end (delta: -2.2GB). Peak memory consumption was 376.9MB. Max. memory is 8.0GB. [2022-09-16 10:17:29,634 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 198.2MB. Free memory is still 152.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 423.11ms. Allocated memory was 198.2MB in the beginning and 281.0MB in the end (delta: 82.8MB). Free memory was 166.2MB in the beginning and 241.5MB in the end (delta: -75.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.35ms. Allocated memory is still 281.0MB. Free memory was 241.5MB in the beginning and 239.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.04ms. Allocated memory is still 281.0MB. Free memory was 239.8MB in the beginning and 238.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 377.95ms. Allocated memory is still 281.0MB. Free memory was 238.3MB in the beginning and 224.2MB in the end (delta: 14.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 14477.91ms. Allocated memory was 281.0MB in the beginning and 2.9GB in the end (delta: 2.6GB). Free memory was 223.7MB in the beginning and 2.4GB in the end (delta: -2.2GB). Peak memory consumption was 376.9MB. 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: 698]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 698]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 706]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 706]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: 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, 111 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 14.4s, OverallIterations: 19, TraceHistogramMax: 12, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6832 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6832 mSDsluCounter, 8515 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6448 mSDsCounter, 283 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1114 IncrementalHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 283 mSolverCounterUnsat, 2307 mSDtfsCounter, 1114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1033 GetRequests, 817 SyntacticMatches, 0 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1552 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20264occurred in iteration=18, InterpolantAutomatonStates: 164, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.0s AutomataMinimizationTime, 19 MinimizatonAttempts, 33546 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1514 NumberOfCodeBlocks, 1514 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1772 ConstructedInterpolants, 0 QuantifiedInterpolants, 4402 SizeOfPredicates, 50 NumberOfNonLiveVariables, 1335 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 30 InterpolantComputations, 15 PerfectInterpolantSequences, 760/2262 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 10:17:29,667 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...