/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/fibonacci.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:53:26,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:53:26,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:53:26,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:53:26,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:53:26,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:53:26,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:53:26,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:53:26,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:53:26,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:53:26,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:53:26,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:53:26,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:53:26,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:53:26,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:53:26,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:53:26,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:53:26,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:53:26,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:53:26,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:53:26,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:53:26,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:53:26,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:53:26,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:53:26,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:53:26,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:53:26,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:53:26,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:53:26,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:53:26,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:53:26,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:53:26,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:53:26,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:53:26,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:53:26,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:53:26,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:53:26,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:53:26,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:53:26,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:53:26,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:53:26,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:53:26,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 10:53:26,626 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:53:26,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:53:26,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:53:26,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:53:26,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:53:26,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:53:26,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:53:26,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:53:26,629 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:53:26,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:53:26,630 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:53:26,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:53:26,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:53:26,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:53:26,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:53:26,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:53:26,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:53:26,631 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:53:26,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:53:26,631 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:53:26,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:53:26,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:53:26,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:53:26,631 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:53:26,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:53:26,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:53:26,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:53:26,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:53:26,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:53:26,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:53:26,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:53:26,632 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:53:26,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:53:26,633 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:53:26,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:53:26,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:53:26,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:53:26,868 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:53:26,869 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:53:26,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/fibonacci.wvr.c [2022-09-16 10:53:26,925 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb87b7b77/829c68b1f558449491c441f599500969/FLAG23749d6b8 [2022-09-16 10:53:27,291 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:53:27,292 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/fibonacci.wvr.c [2022-09-16 10:53:27,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb87b7b77/829c68b1f558449491c441f599500969/FLAG23749d6b8 [2022-09-16 10:53:27,693 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb87b7b77/829c68b1f558449491c441f599500969 [2022-09-16 10:53:27,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:53:27,696 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:53:27,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:53:27,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:53:27,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:53:27,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:53:27" (1/1) ... [2022-09-16 10:53:27,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b30b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:27, skipping insertion in model container [2022-09-16 10:53:27,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:53:27" (1/1) ... [2022-09-16 10:53:27,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:53:27,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:53:27,952 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/fibonacci.wvr.c[2330,2343] [2022-09-16 10:53:27,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:53:27,972 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:53:28,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/fibonacci.wvr.c[2330,2343] [2022-09-16 10:53:28,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:53:28,029 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:53:28,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:28 WrapperNode [2022-09-16 10:53:28,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:53:28,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:53:28,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:53:28,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:53:28,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:28" (1/1) ... [2022-09-16 10:53:28,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:28" (1/1) ... [2022-09-16 10:53:28,100 INFO L138 Inliner]: procedures = 23, calls = 28, calls flagged for inlining = 12, calls inlined = 16, statements flattened = 230 [2022-09-16 10:53:28,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:53:28,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:53:28,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:53:28,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:53:28,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:28" (1/1) ... [2022-09-16 10:53:28,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:28" (1/1) ... [2022-09-16 10:53:28,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:28" (1/1) ... [2022-09-16 10:53:28,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:28" (1/1) ... [2022-09-16 10:53:28,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:28" (1/1) ... [2022-09-16 10:53:28,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:28" (1/1) ... [2022-09-16 10:53:28,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:28" (1/1) ... [2022-09-16 10:53:28,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:53:28,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:53:28,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:53:28,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:53:28,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:28" (1/1) ... [2022-09-16 10:53:28,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:53:28,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:53:28,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 10:53:28,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 10:53:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:53:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 10:53:28,193 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 10:53:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 10:53:28,193 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 10:53:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:53:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:53:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:53:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:53:28,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:53:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:53:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:53:28,195 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 10:53:28,276 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:53:28,278 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:53:28,741 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:53:28,751 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:53:28,751 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-09-16 10:53:28,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:53:28 BoogieIcfgContainer [2022-09-16 10:53:28,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:53:28,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:53:28,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:53:28,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:53:28,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:53:27" (1/3) ... [2022-09-16 10:53:28,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cff5e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:53:28, skipping insertion in model container [2022-09-16 10:53:28,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:53:28" (2/3) ... [2022-09-16 10:53:28,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cff5e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:53:28, skipping insertion in model container [2022-09-16 10:53:28,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:53:28" (3/3) ... [2022-09-16 10:53:28,764 INFO L112 eAbstractionObserver]: Analyzing ICFG fibonacci.wvr.c [2022-09-16 10:53:28,771 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:53:28,780 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:53:28,780 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-09-16 10:53:28,780 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:53:28,941 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-16 10:53:28,980 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 308 places, 325 transitions, 666 flow [2022-09-16 10:53:30,310 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 48278 states, 48054 states have (on average 2.9265201648145838) internal successors, (140631), 48277 states have internal predecessors, (140631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:30,327 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:53:30,335 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;@116064cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:53:30,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2022-09-16 10:53:30,409 INFO L276 IsEmpty]: Start isEmpty. Operand has 48278 states, 48054 states have (on average 2.9265201648145838) internal successors, (140631), 48277 states have internal predecessors, (140631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:30,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 10:53:30,421 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:30,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:30,422 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:53:30,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:30,488 INFO L85 PathProgramCache]: Analyzing trace with hash -92999142, now seen corresponding path program 1 times [2022-09-16 10:53:30,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:30,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241913720] [2022-09-16 10:53:30,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:30,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:30,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:30,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:30,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241913720] [2022-09-16 10:53:30,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241913720] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:53:30,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:53:30,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:53:30,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200391245] [2022-09-16 10:53:30,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:53:30,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:53:30,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:30,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:53:30,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:53:30,879 INFO L87 Difference]: Start difference. First operand has 48278 states, 48054 states have (on average 2.9265201648145838) internal successors, (140631), 48277 states have internal predecessors, (140631), 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 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:32,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:32,706 INFO L93 Difference]: Finished difference Result 137703 states and 388482 transitions. [2022-09-16 10:53:32,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:53:32,708 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 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 63 [2022-09-16 10:53:32,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:33,630 INFO L225 Difference]: With dead ends: 137703 [2022-09-16 10:53:33,630 INFO L226 Difference]: Without dead ends: 136614 [2022-09-16 10:53:33,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:53:33,634 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 1172 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:33,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1172 Valid, 2230 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:53:33,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136614 states. [2022-09-16 10:53:36,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136614 to 52365. [2022-09-16 10:53:36,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52365 states, 52029 states have (on average 2.8541966979953486) internal successors, (148501), 52364 states have internal predecessors, (148501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:36,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52365 states to 52365 states and 148501 transitions. [2022-09-16 10:53:36,863 INFO L78 Accepts]: Start accepts. Automaton has 52365 states and 148501 transitions. Word has length 63 [2022-09-16 10:53:36,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:53:36,864 INFO L495 AbstractCegarLoop]: Abstraction has 52365 states and 148501 transitions. [2022-09-16 10:53:36,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:36,864 INFO L276 IsEmpty]: Start isEmpty. Operand 52365 states and 148501 transitions. [2022-09-16 10:53:36,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-09-16 10:53:36,868 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:36,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:36,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:53:36,869 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:53:36,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:36,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1411994700, now seen corresponding path program 1 times [2022-09-16 10:53:36,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:36,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454985352] [2022-09-16 10:53:36,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:36,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:36,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:36,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:36,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454985352] [2022-09-16 10:53:36,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454985352] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:53:36,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:53:36,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:53:36,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337581461] [2022-09-16 10:53:36,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:53:36,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:53:36,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:36,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:53:36,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:53:36,933 INFO L87 Difference]: Start difference. First operand 52365 states and 148501 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:37,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:37,850 INFO L93 Difference]: Finished difference Result 93628 states and 264897 transitions. [2022-09-16 10:53:37,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:53:37,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-09-16 10:53:37,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:38,349 INFO L225 Difference]: With dead ends: 93628 [2022-09-16 10:53:38,349 INFO L226 Difference]: Without dead ends: 93628 [2022-09-16 10:53:38,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:53:38,356 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 455 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:38,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1007 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:53:38,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93628 states. [2022-09-16 10:53:40,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93628 to 56343. [2022-09-16 10:53:40,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56343 states, 56026 states have (on average 2.863242066183558) internal successors, (160416), 56342 states have internal predecessors, (160416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:40,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56343 states to 56343 states and 160416 transitions. [2022-09-16 10:53:40,630 INFO L78 Accepts]: Start accepts. Automaton has 56343 states and 160416 transitions. Word has length 64 [2022-09-16 10:53:40,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:53:40,631 INFO L495 AbstractCegarLoop]: Abstraction has 56343 states and 160416 transitions. [2022-09-16 10:53:40,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:40,636 INFO L276 IsEmpty]: Start isEmpty. Operand 56343 states and 160416 transitions. [2022-09-16 10:53:40,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-09-16 10:53:40,641 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:40,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:40,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:53:40,641 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:53:40,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:40,641 INFO L85 PathProgramCache]: Analyzing trace with hash 2053324545, now seen corresponding path program 1 times [2022-09-16 10:53:40,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:40,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650336723] [2022-09-16 10:53:40,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:40,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:40,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:40,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:40,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650336723] [2022-09-16 10:53:40,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650336723] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:53:40,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:53:40,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:53:40,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656049027] [2022-09-16 10:53:40,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:53:40,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:53:40,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:40,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:53:40,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:53:40,775 INFO L87 Difference]: Start difference. First operand 56343 states and 160416 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:41,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:41,928 INFO L93 Difference]: Finished difference Result 158792 states and 453148 transitions. [2022-09-16 10:53:41,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:53:41,929 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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 69 [2022-09-16 10:53:41,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:42,998 INFO L225 Difference]: With dead ends: 158792 [2022-09-16 10:53:42,998 INFO L226 Difference]: Without dead ends: 158792 [2022-09-16 10:53:42,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:53:43,000 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 1141 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 2189 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:43,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 2189 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:53:43,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158792 states. [2022-09-16 10:53:45,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158792 to 61493. [2022-09-16 10:53:45,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61493 states, 61176 states have (on average 2.8752288479142147) internal successors, (175895), 61492 states have internal predecessors, (175895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:45,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61493 states to 61493 states and 175895 transitions. [2022-09-16 10:53:45,435 INFO L78 Accepts]: Start accepts. Automaton has 61493 states and 175895 transitions. Word has length 69 [2022-09-16 10:53:45,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:53:45,436 INFO L495 AbstractCegarLoop]: Abstraction has 61493 states and 175895 transitions. [2022-09-16 10:53:45,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:45,436 INFO L276 IsEmpty]: Start isEmpty. Operand 61493 states and 175895 transitions. [2022-09-16 10:53:45,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-09-16 10:53:45,440 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:45,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:45,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:53:45,440 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:53:45,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:45,441 INFO L85 PathProgramCache]: Analyzing trace with hash -771447620, now seen corresponding path program 1 times [2022-09-16 10:53:45,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:45,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577202457] [2022-09-16 10:53:45,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:45,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:45,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:45,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:45,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577202457] [2022-09-16 10:53:45,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577202457] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:53:45,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:53:45,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:53:45,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104963095] [2022-09-16 10:53:45,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:53:45,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:53:45,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:45,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:53:45,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:53:45,510 INFO L87 Difference]: Start difference. First operand 61493 states and 175895 transitions. Second operand has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:46,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:46,453 INFO L93 Difference]: Finished difference Result 109291 states and 312404 transitions. [2022-09-16 10:53:46,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:53:46,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 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 70 [2022-09-16 10:53:46,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:47,186 INFO L225 Difference]: With dead ends: 109291 [2022-09-16 10:53:47,187 INFO L226 Difference]: Without dead ends: 109291 [2022-09-16 10:53:47,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:53:47,188 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 348 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:47,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 1251 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:53:47,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109291 states. [2022-09-16 10:53:48,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109291 to 66128. [2022-09-16 10:53:49,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66128 states, 65829 states have (on average 2.8851114250558263) internal successors, (189924), 66127 states have internal predecessors, (189924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:49,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66128 states to 66128 states and 189924 transitions. [2022-09-16 10:53:49,263 INFO L78 Accepts]: Start accepts. Automaton has 66128 states and 189924 transitions. Word has length 70 [2022-09-16 10:53:49,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:53:49,264 INFO L495 AbstractCegarLoop]: Abstraction has 66128 states and 189924 transitions. [2022-09-16 10:53:49,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:49,264 INFO L276 IsEmpty]: Start isEmpty. Operand 66128 states and 189924 transitions. [2022-09-16 10:53:49,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-09-16 10:53:49,269 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:49,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:49,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 10:53:49,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:53:49,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:49,270 INFO L85 PathProgramCache]: Analyzing trace with hash 645188787, now seen corresponding path program 1 times [2022-09-16 10:53:49,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:49,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747236427] [2022-09-16 10:53:49,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:49,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:49,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:49,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:49,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747236427] [2022-09-16 10:53:49,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747236427] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:53:49,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:53:49,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:53:49,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904586935] [2022-09-16 10:53:49,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:53:49,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:53:49,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:49,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:53:49,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:53:49,655 INFO L87 Difference]: Start difference. First operand 66128 states and 189924 transitions. Second operand has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:50,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:50,251 INFO L93 Difference]: Finished difference Result 109930 states and 313188 transitions. [2022-09-16 10:53:50,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:53:50,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 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 10:53:50,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:51,063 INFO L225 Difference]: With dead ends: 109930 [2022-09-16 10:53:51,063 INFO L226 Difference]: Without dead ends: 109930 [2022-09-16 10:53:51,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:53:51,065 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 353 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:51,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 1182 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:53:51,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109930 states. [2022-09-16 10:53:52,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109930 to 66128. [2022-09-16 10:53:52,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66128 states, 65829 states have (on average 2.8772425526743532) internal successors, (189406), 66127 states have internal predecessors, (189406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:53,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66128 states to 66128 states and 189406 transitions. [2022-09-16 10:53:53,073 INFO L78 Accepts]: Start accepts. Automaton has 66128 states and 189406 transitions. Word has length 72 [2022-09-16 10:53:53,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:53:53,073 INFO L495 AbstractCegarLoop]: Abstraction has 66128 states and 189406 transitions. [2022-09-16 10:53:53,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:53,073 INFO L276 IsEmpty]: Start isEmpty. Operand 66128 states and 189406 transitions. [2022-09-16 10:53:53,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-09-16 10:53:53,079 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:53,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:53,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:53:53,080 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:53:53,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:53,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1473983260, now seen corresponding path program 1 times [2022-09-16 10:53:53,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:53,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945616422] [2022-09-16 10:53:53,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:53,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:53,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:53,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:53,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945616422] [2022-09-16 10:53:53,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945616422] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:53:53,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:53:53,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:53:53,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123337709] [2022-09-16 10:53:53,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:53:53,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:53:53,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:53,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:53:53,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:53:53,191 INFO L87 Difference]: Start difference. First operand 66128 states and 189406 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:54,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:54,281 INFO L93 Difference]: Finished difference Result 126988 states and 362256 transitions. [2022-09-16 10:53:54,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:53:54,282 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-09-16 10:53:54,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:55,162 INFO L225 Difference]: With dead ends: 126988 [2022-09-16 10:53:55,162 INFO L226 Difference]: Without dead ends: 126988 [2022-09-16 10:53:55,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:53:55,163 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 1058 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 2082 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:55,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 2082 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:53:55,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126988 states. [2022-09-16 10:53:57,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126988 to 71826. [2022-09-16 10:53:57,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71826 states, 71527 states have (on average 2.885763418009982) internal successors, (206410), 71825 states have internal predecessors, (206410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:57,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71826 states to 71826 states and 206410 transitions. [2022-09-16 10:53:57,624 INFO L78 Accepts]: Start accepts. Automaton has 71826 states and 206410 transitions. Word has length 73 [2022-09-16 10:53:57,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:53:57,625 INFO L495 AbstractCegarLoop]: Abstraction has 71826 states and 206410 transitions. [2022-09-16 10:53:57,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:57,625 INFO L276 IsEmpty]: Start isEmpty. Operand 71826 states and 206410 transitions. [2022-09-16 10:53:57,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-09-16 10:53:57,631 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:57,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:53:57,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:53:57,631 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:53:57,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:57,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1716649447, now seen corresponding path program 1 times [2022-09-16 10:53:57,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:57,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365966497] [2022-09-16 10:53:57,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:57,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:57,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:53:57,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:57,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365966497] [2022-09-16 10:53:57,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365966497] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:53:57,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:53:57,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:53:57,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859515799] [2022-09-16 10:53:57,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:53:57,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:53:57,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:57,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:53:57,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:53:57,759 INFO L87 Difference]: Start difference. First operand 71826 states and 206410 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:53:58,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:58,386 INFO L93 Difference]: Finished difference Result 118688 states and 338784 transitions. [2022-09-16 10:53:58,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 10:53:58,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 75 [2022-09-16 10:53:58,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:59,241 INFO L225 Difference]: With dead ends: 118688 [2022-09-16 10:53:59,241 INFO L226 Difference]: Without dead ends: 118688 [2022-09-16 10:53:59,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:53:59,242 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 479 mSDsluCounter, 1495 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 2336 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:59,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 2336 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:53:59,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118688 states. [2022-09-16 10:54:01,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118688 to 70790. [2022-09-16 10:54:01,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70790 states, 70509 states have (on average 2.8861280120268336) internal successors, (203498), 70789 states have internal predecessors, (203498), 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 10:54:01,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70790 states to 70790 states and 203498 transitions. [2022-09-16 10:54:01,379 INFO L78 Accepts]: Start accepts. Automaton has 70790 states and 203498 transitions. Word has length 75 [2022-09-16 10:54:01,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:01,380 INFO L495 AbstractCegarLoop]: Abstraction has 70790 states and 203498 transitions. [2022-09-16 10:54:01,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 10:54:01,380 INFO L276 IsEmpty]: Start isEmpty. Operand 70790 states and 203498 transitions. [2022-09-16 10:54:01,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-09-16 10:54:01,387 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:01,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:01,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:54:01,388 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:54:01,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:01,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1938319197, now seen corresponding path program 1 times [2022-09-16 10:54:01,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:01,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245111759] [2022-09-16 10:54:01,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:01,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:01,451 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 10:54:01,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:01,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245111759] [2022-09-16 10:54:01,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245111759] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:01,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:01,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:54:01,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705784584] [2022-09-16 10:54:01,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:01,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:54:01,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:01,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:54:01,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:54:01,453 INFO L87 Difference]: Start difference. First operand 70790 states and 203498 transitions. Second operand has 4 states, 3 states have (on average 26.0) internal successors, (78), 4 states have internal predecessors, (78), 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 10:54:02,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:02,492 INFO L93 Difference]: Finished difference Result 117013 states and 334206 transitions. [2022-09-16 10:54:02,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:54:02,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 26.0) internal successors, (78), 4 states have internal predecessors, (78), 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 78 [2022-09-16 10:54:02,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:03,489 INFO L225 Difference]: With dead ends: 117013 [2022-09-16 10:54:03,489 INFO L226 Difference]: Without dead ends: 117013 [2022-09-16 10:54:03,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:54:03,491 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 434 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:03,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 899 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:54:03,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117013 states. [2022-09-16 10:54:05,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117013 to 70790. [2022-09-16 10:54:05,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70790 states, 70509 states have (on average 2.878313406799132) internal successors, (202947), 70789 states have internal predecessors, (202947), 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 10:54:05,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70790 states to 70790 states and 202947 transitions. [2022-09-16 10:54:05,726 INFO L78 Accepts]: Start accepts. Automaton has 70790 states and 202947 transitions. Word has length 78 [2022-09-16 10:54:05,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:05,727 INFO L495 AbstractCegarLoop]: Abstraction has 70790 states and 202947 transitions. [2022-09-16 10:54:05,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 26.0) internal successors, (78), 4 states have internal predecessors, (78), 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 10:54:05,727 INFO L276 IsEmpty]: Start isEmpty. Operand 70790 states and 202947 transitions. [2022-09-16 10:54:05,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-09-16 10:54:05,733 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:05,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:05,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 10:54:05,734 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:54:05,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:05,734 INFO L85 PathProgramCache]: Analyzing trace with hash 41647979, now seen corresponding path program 1 times [2022-09-16 10:54:05,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:05,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839245056] [2022-09-16 10:54:05,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:05,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:05,797 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 10:54:05,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:05,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839245056] [2022-09-16 10:54:05,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839245056] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:05,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:05,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:54:05,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958707357] [2022-09-16 10:54:05,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:05,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:54:05,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:05,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:54:05,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:54:05,799 INFO L87 Difference]: Start difference. First operand 70790 states and 202947 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 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 10:54:06,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:06,924 INFO L93 Difference]: Finished difference Result 134788 states and 385774 transitions. [2022-09-16 10:54:06,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:54:06,925 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 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 79 [2022-09-16 10:54:06,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:07,710 INFO L225 Difference]: With dead ends: 134788 [2022-09-16 10:54:07,713 INFO L226 Difference]: Without dead ends: 134788 [2022-09-16 10:54:07,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:54:07,715 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 1031 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:07,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 2047 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:07,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134788 states. [2022-09-16 10:54:09,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134788 to 76851. [2022-09-16 10:54:09,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76851 states, 76570 states have (on average 2.88730573331592) internal successors, (221081), 76850 states have internal predecessors, (221081), 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 10:54:09,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76851 states to 76851 states and 221081 transitions. [2022-09-16 10:54:09,900 INFO L78 Accepts]: Start accepts. Automaton has 76851 states and 221081 transitions. Word has length 79 [2022-09-16 10:54:09,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:09,901 INFO L495 AbstractCegarLoop]: Abstraction has 76851 states and 221081 transitions. [2022-09-16 10:54:09,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 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 10:54:09,901 INFO L276 IsEmpty]: Start isEmpty. Operand 76851 states and 221081 transitions. [2022-09-16 10:54:09,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-09-16 10:54:09,907 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:09,907 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:09,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 10:54:09,907 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:54:09,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:09,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1890279305, now seen corresponding path program 1 times [2022-09-16 10:54:09,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:09,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29394122] [2022-09-16 10:54:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:09,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:10,358 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 10:54:10,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:10,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29394122] [2022-09-16 10:54:10,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29394122] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:10,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:10,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 10:54:10,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403516429] [2022-09-16 10:54:10,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:10,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 10:54:10,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:10,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 10:54:10,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:54:10,360 INFO L87 Difference]: Start difference. First operand 76851 states and 221081 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 10:54:11,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:11,726 INFO L93 Difference]: Finished difference Result 151023 states and 428767 transitions. [2022-09-16 10:54:11,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-16 10:54:11,727 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 79 [2022-09-16 10:54:11,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:12,281 INFO L225 Difference]: With dead ends: 151023 [2022-09-16 10:54:12,282 INFO L226 Difference]: Without dead ends: 151023 [2022-09-16 10:54:12,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-09-16 10:54:12,283 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 2357 mSDsluCounter, 2902 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2357 SdHoareTripleChecker+Valid, 3646 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:12,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2357 Valid, 3646 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:12,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151023 states. [2022-09-16 10:54:14,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151023 to 87529. [2022-09-16 10:54:14,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87529 states, 87248 states have (on average 2.8900146708234) internal successors, (252148), 87528 states have internal predecessors, (252148), 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 10:54:15,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87529 states to 87529 states and 252148 transitions. [2022-09-16 10:54:15,187 INFO L78 Accepts]: Start accepts. Automaton has 87529 states and 252148 transitions. Word has length 79 [2022-09-16 10:54:15,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:15,187 INFO L495 AbstractCegarLoop]: Abstraction has 87529 states and 252148 transitions. [2022-09-16 10:54:15,187 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 10:54:15,187 INFO L276 IsEmpty]: Start isEmpty. Operand 87529 states and 252148 transitions. [2022-09-16 10:54:15,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-09-16 10:54:15,194 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:15,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:15,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-16 10:54:15,194 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:54:15,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:15,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1530882854, now seen corresponding path program 1 times [2022-09-16 10:54:15,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:15,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520505917] [2022-09-16 10:54:15,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:15,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:15,269 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 10:54:15,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:15,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520505917] [2022-09-16 10:54:15,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520505917] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:15,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:15,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 10:54:15,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654156336] [2022-09-16 10:54:15,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:15,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 10:54:15,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:15,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 10:54:15,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:54:15,271 INFO L87 Difference]: Start difference. First operand 87529 states and 252148 transitions. Second operand has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 8 states have internal predecessors, (80), 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 10:54:17,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:17,038 INFO L93 Difference]: Finished difference Result 152661 states and 432848 transitions. [2022-09-16 10:54:17,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-16 10:54:17,038 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 8 states have internal predecessors, (80), 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 80 [2022-09-16 10:54:17,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:17,676 INFO L225 Difference]: With dead ends: 152661 [2022-09-16 10:54:17,676 INFO L226 Difference]: Without dead ends: 152661 [2022-09-16 10:54:17,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-09-16 10:54:17,677 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 2455 mSDsluCounter, 2882 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2455 SdHoareTripleChecker+Valid, 3620 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:17,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2455 Valid, 3620 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:54:18,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152661 states. [2022-09-16 10:54:20,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152661 to 97645. [2022-09-16 10:54:20,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97645 states, 97364 states have (on average 2.89836079043589) internal successors, (282196), 97644 states have internal predecessors, (282196), 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 10:54:20,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97645 states to 97645 states and 282196 transitions. [2022-09-16 10:54:20,844 INFO L78 Accepts]: Start accepts. Automaton has 97645 states and 282196 transitions. Word has length 80 [2022-09-16 10:54:20,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:20,844 INFO L495 AbstractCegarLoop]: Abstraction has 97645 states and 282196 transitions. [2022-09-16 10:54:20,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 8 states have internal predecessors, (80), 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 10:54:20,844 INFO L276 IsEmpty]: Start isEmpty. Operand 97645 states and 282196 transitions. [2022-09-16 10:54:20,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:54:20,853 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:20,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:20,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 10:54:20,854 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:54:20,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:20,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2050606706, now seen corresponding path program 1 times [2022-09-16 10:54:20,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:20,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388870734] [2022-09-16 10:54:20,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:20,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:20,895 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 10:54:20,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:20,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388870734] [2022-09-16 10:54:20,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388870734] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:20,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:20,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:54:20,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761023609] [2022-09-16 10:54:20,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:20,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:54:20,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:20,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:54:20,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:54:20,897 INFO L87 Difference]: Start difference. First operand 97645 states and 282196 transitions. Second operand has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 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 10:54:22,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:22,277 INFO L93 Difference]: Finished difference Result 155101 states and 446712 transitions. [2022-09-16 10:54:22,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:54:22,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 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 81 [2022-09-16 10:54:22,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:22,831 INFO L225 Difference]: With dead ends: 155101 [2022-09-16 10:54:22,831 INFO L226 Difference]: Without dead ends: 155050 [2022-09-16 10:54:22,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:54:22,832 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 335 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:22,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 1234 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:54:23,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155050 states. [2022-09-16 10:54:25,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155050 to 96895. [2022-09-16 10:54:25,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96895 states, 96619 states have (on average 2.898456825262112) internal successors, (280046), 96894 states have internal predecessors, (280046), 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 10:54:26,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96895 states to 96895 states and 280046 transitions. [2022-09-16 10:54:26,087 INFO L78 Accepts]: Start accepts. Automaton has 96895 states and 280046 transitions. Word has length 81 [2022-09-16 10:54:26,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:26,087 INFO L495 AbstractCegarLoop]: Abstraction has 96895 states and 280046 transitions. [2022-09-16 10:54:26,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 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 10:54:26,088 INFO L276 IsEmpty]: Start isEmpty. Operand 96895 states and 280046 transitions. [2022-09-16 10:54:26,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-09-16 10:54:26,097 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:26,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:26,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-09-16 10:54:26,097 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:54:26,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:26,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1768334014, now seen corresponding path program 1 times [2022-09-16 10:54:26,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:26,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364312618] [2022-09-16 10:54:26,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:26,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:26,177 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 10:54:26,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:26,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364312618] [2022-09-16 10:54:26,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364312618] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:26,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:26,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:54:26,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531317955] [2022-09-16 10:54:26,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:26,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:54:26,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:26,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:54:26,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:54:26,179 INFO L87 Difference]: Start difference. First operand 96895 states and 280046 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 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 10:54:27,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:27,250 INFO L93 Difference]: Finished difference Result 106288 states and 305515 transitions. [2022-09-16 10:54:27,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:54:27,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 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 82 [2022-09-16 10:54:27,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:27,601 INFO L225 Difference]: With dead ends: 106288 [2022-09-16 10:54:27,601 INFO L226 Difference]: Without dead ends: 106288 [2022-09-16 10:54:27,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:54:27,602 INFO L413 NwaCegarLoop]: 885 mSDtfsCounter, 660 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:27,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 2429 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:27,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106288 states. [2022-09-16 10:54:29,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106288 to 92431. [2022-09-16 10:54:29,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92431 states, 92155 states have (on average 2.891020563181596) internal successors, (266422), 92430 states have internal predecessors, (266422), 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 10:54:30,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92431 states to 92431 states and 266422 transitions. [2022-09-16 10:54:30,179 INFO L78 Accepts]: Start accepts. Automaton has 92431 states and 266422 transitions. Word has length 82 [2022-09-16 10:54:30,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:30,179 INFO L495 AbstractCegarLoop]: Abstraction has 92431 states and 266422 transitions. [2022-09-16 10:54:30,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 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 10:54:30,180 INFO L276 IsEmpty]: Start isEmpty. Operand 92431 states and 266422 transitions. [2022-09-16 10:54:30,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-09-16 10:54:30,189 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:30,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:30,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-09-16 10:54:30,190 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:54:30,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:30,190 INFO L85 PathProgramCache]: Analyzing trace with hash -289189362, now seen corresponding path program 1 times [2022-09-16 10:54:30,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:30,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711743151] [2022-09-16 10:54:30,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:30,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:30,254 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 10:54:30,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:30,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711743151] [2022-09-16 10:54:30,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711743151] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:30,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:30,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:54:30,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633262207] [2022-09-16 10:54:30,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:30,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:54:30,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:30,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:54:30,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:54:30,256 INFO L87 Difference]: Start difference. First operand 92431 states and 266422 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 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 10:54:31,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:31,281 INFO L93 Difference]: Finished difference Result 107352 states and 308548 transitions. [2022-09-16 10:54:31,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:54:31,282 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 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 83 [2022-09-16 10:54:31,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:31,646 INFO L225 Difference]: With dead ends: 107352 [2022-09-16 10:54:31,646 INFO L226 Difference]: Without dead ends: 107352 [2022-09-16 10:54:31,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:54:31,647 INFO L413 NwaCegarLoop]: 896 mSDtfsCounter, 688 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 2318 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:31,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 2318 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:31,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107352 states. [2022-09-16 10:54:33,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107352 to 96895. [2022-09-16 10:54:33,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96895 states, 96619 states have (on average 2.898456825262112) internal successors, (280046), 96894 states have internal predecessors, (280046), 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 10:54:34,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96895 states to 96895 states and 280046 transitions. [2022-09-16 10:54:34,288 INFO L78 Accepts]: Start accepts. Automaton has 96895 states and 280046 transitions. Word has length 83 [2022-09-16 10:54:34,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:34,289 INFO L495 AbstractCegarLoop]: Abstraction has 96895 states and 280046 transitions. [2022-09-16 10:54:34,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 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 10:54:34,289 INFO L276 IsEmpty]: Start isEmpty. Operand 96895 states and 280046 transitions. [2022-09-16 10:54:34,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-09-16 10:54:34,299 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:34,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:34,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-09-16 10:54:34,300 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:54:34,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:34,300 INFO L85 PathProgramCache]: Analyzing trace with hash -17607312, now seen corresponding path program 1 times [2022-09-16 10:54:34,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:34,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042925845] [2022-09-16 10:54:34,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:34,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:34,365 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 10:54:34,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:34,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042925845] [2022-09-16 10:54:34,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042925845] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:34,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:34,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 10:54:34,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275986067] [2022-09-16 10:54:34,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:34,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 10:54:34,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:34,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 10:54:34,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:54:34,367 INFO L87 Difference]: Start difference. First operand 96895 states and 280046 transitions. Second operand has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 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 10:54:35,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:35,910 INFO L93 Difference]: Finished difference Result 188179 states and 538526 transitions. [2022-09-16 10:54:35,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-16 10:54:35,910 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 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 85 [2022-09-16 10:54:35,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:37,015 INFO L225 Difference]: With dead ends: 188179 [2022-09-16 10:54:37,015 INFO L226 Difference]: Without dead ends: 188179 [2022-09-16 10:54:37,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-09-16 10:54:37,016 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 2286 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2286 SdHoareTripleChecker+Valid, 3550 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:37,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2286 Valid, 3550 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:37,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188179 states. [2022-09-16 10:54:39,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188179 to 110176. [2022-09-16 10:54:40,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110176 states, 109900 states have (on average 2.908189262966333) internal successors, (319610), 110175 states have internal predecessors, (319610), 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 10:54:40,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110176 states to 110176 states and 319610 transitions. [2022-09-16 10:54:40,824 INFO L78 Accepts]: Start accepts. Automaton has 110176 states and 319610 transitions. Word has length 85 [2022-09-16 10:54:40,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:40,825 INFO L495 AbstractCegarLoop]: Abstraction has 110176 states and 319610 transitions. [2022-09-16 10:54:40,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 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 10:54:40,825 INFO L276 IsEmpty]: Start isEmpty. Operand 110176 states and 319610 transitions. [2022-09-16 10:54:40,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-09-16 10:54:40,837 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:40,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:40,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-09-16 10:54:40,838 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:54:40,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:40,838 INFO L85 PathProgramCache]: Analyzing trace with hash -545825718, now seen corresponding path program 1 times [2022-09-16 10:54:40,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:40,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973068169] [2022-09-16 10:54:40,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:40,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:40,923 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 10:54:40,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:40,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973068169] [2022-09-16 10:54:40,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973068169] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:40,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:40,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 10:54:40,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696908652] [2022-09-16 10:54:40,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:40,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 10:54:40,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:40,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 10:54:40,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:54:40,927 INFO L87 Difference]: Start difference. First operand 110176 states and 319610 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 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 10:54:42,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:42,447 INFO L93 Difference]: Finished difference Result 190225 states and 543648 transitions. [2022-09-16 10:54:42,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-16 10:54:42,447 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 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 86 [2022-09-16 10:54:42,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:43,124 INFO L225 Difference]: With dead ends: 190225 [2022-09-16 10:54:43,125 INFO L226 Difference]: Without dead ends: 190225 [2022-09-16 10:54:43,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-09-16 10:54:43,125 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 2369 mSDsluCounter, 2807 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2369 SdHoareTripleChecker+Valid, 3532 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:43,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2369 Valid, 3532 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:43,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190225 states. [2022-09-16 10:54:46,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190225 to 122758. [2022-09-16 10:54:46,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122758 states, 122482 states have (on average 2.9167142927123986) internal successors, (357245), 122757 states have internal predecessors, (357245), 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 10:54:47,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122758 states to 122758 states and 357245 transitions. [2022-09-16 10:54:47,422 INFO L78 Accepts]: Start accepts. Automaton has 122758 states and 357245 transitions. Word has length 86 [2022-09-16 10:54:47,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:47,423 INFO L495 AbstractCegarLoop]: Abstraction has 122758 states and 357245 transitions. [2022-09-16 10:54:47,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 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 10:54:47,423 INFO L276 IsEmpty]: Start isEmpty. Operand 122758 states and 357245 transitions. [2022-09-16 10:54:47,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-09-16 10:54:47,439 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:47,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:47,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-09-16 10:54:47,439 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:54:47,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:47,440 INFO L85 PathProgramCache]: Analyzing trace with hash -779526898, now seen corresponding path program 1 times [2022-09-16 10:54:47,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:47,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655378940] [2022-09-16 10:54:47,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:47,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:47,499 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 10:54:47,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:47,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655378940] [2022-09-16 10:54:47,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655378940] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:47,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:47,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:54:47,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528438861] [2022-09-16 10:54:47,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:47,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:54:47,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:47,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:54:47,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:54:47,501 INFO L87 Difference]: Start difference. First operand 122758 states and 357245 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 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 10:54:48,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:48,695 INFO L93 Difference]: Finished difference Result 134182 states and 388676 transitions. [2022-09-16 10:54:48,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:54:48,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 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 88 [2022-09-16 10:54:48,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:49,109 INFO L225 Difference]: With dead ends: 134182 [2022-09-16 10:54:49,110 INFO L226 Difference]: Without dead ends: 134182 [2022-09-16 10:54:49,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:54:49,110 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 718 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 2145 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:49,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 2145 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:49,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134182 states. [2022-09-16 10:54:52,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134182 to 117166. [2022-09-16 10:54:52,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117166 states, 116890 states have (on average 2.909213790743434) internal successors, (340058), 117165 states have internal predecessors, (340058), 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 10:54:53,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117166 states to 117166 states and 340058 transitions. [2022-09-16 10:54:53,326 INFO L78 Accepts]: Start accepts. Automaton has 117166 states and 340058 transitions. Word has length 88 [2022-09-16 10:54:53,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:53,326 INFO L495 AbstractCegarLoop]: Abstraction has 117166 states and 340058 transitions. [2022-09-16 10:54:53,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 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 10:54:53,326 INFO L276 IsEmpty]: Start isEmpty. Operand 117166 states and 340058 transitions. [2022-09-16 10:54:53,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-09-16 10:54:53,343 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:53,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:54:53,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-09-16 10:54:53,343 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:54:53,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:53,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1963466187, now seen corresponding path program 1 times [2022-09-16 10:54:53,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:53,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236240275] [2022-09-16 10:54:53,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:53,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:53,419 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 10:54:53,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:53,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236240275] [2022-09-16 10:54:53,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236240275] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:53,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:53,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:54:53,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480794822] [2022-09-16 10:54:53,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:53,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:54:53,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:53,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:54:53,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:54:53,421 INFO L87 Difference]: Start difference. First operand 117166 states and 340058 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 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 10:54:54,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:54,574 INFO L93 Difference]: Finished difference Result 135529 states and 392517 transitions. [2022-09-16 10:54:54,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:54:54,574 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 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 89 [2022-09-16 10:54:54,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:55,007 INFO L225 Difference]: With dead ends: 135529 [2022-09-16 10:54:55,007 INFO L226 Difference]: Without dead ends: 135529 [2022-09-16 10:54:55,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:54:55,008 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 596 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:55,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 2702 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:55,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135529 states. [2022-09-16 10:54:57,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135529 to 122758. [2022-09-16 10:54:58,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122758 states, 122482 states have (on average 2.9167142927123986) internal successors, (357245), 122757 states have internal predecessors, (357245), 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 10:54:58,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122758 states to 122758 states and 357245 transitions. [2022-09-16 10:54:58,531 INFO L78 Accepts]: Start accepts. Automaton has 122758 states and 357245 transitions. Word has length 89 [2022-09-16 10:54:58,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:58,531 INFO L495 AbstractCegarLoop]: Abstraction has 122758 states and 357245 transitions. [2022-09-16 10:54:58,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 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 10:54:58,532 INFO L276 IsEmpty]: Start isEmpty. Operand 122758 states and 357245 transitions. [2022-09-16 10:54:58,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-09-16 10:54:58,549 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:58,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:54:58,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-09-16 10:54:58,550 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:54:58,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:58,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1730133837, now seen corresponding path program 1 times [2022-09-16 10:54:58,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:58,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851991378] [2022-09-16 10:54:58,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:58,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:58,604 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 10:54:58,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:58,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851991378] [2022-09-16 10:54:58,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851991378] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:58,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:58,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 10:54:58,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610967461] [2022-09-16 10:54:58,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:58,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 10:54:58,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:58,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 10:54:58,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:54:58,607 INFO L87 Difference]: Start difference. First operand 122758 states and 357245 transitions. Second operand has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 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 10:55:01,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:01,964 INFO L93 Difference]: Finished difference Result 321470 states and 928431 transitions. [2022-09-16 10:55:01,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:55:01,965 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 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 95 [2022-09-16 10:55:01,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:03,327 INFO L225 Difference]: With dead ends: 321470 [2022-09-16 10:55:03,327 INFO L226 Difference]: Without dead ends: 321470 [2022-09-16 10:55:03,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:55:03,328 INFO L413 NwaCegarLoop]: 1013 mSDtfsCounter, 2012 mSDsluCounter, 4067 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2012 SdHoareTripleChecker+Valid, 5043 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:03,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2012 Valid, 5043 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:55:04,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321470 states. [2022-09-16 10:55:08,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321470 to 148880. [2022-09-16 10:55:08,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148880 states, 148604 states have (on average 2.9300288013781595) internal successors, (435414), 148879 states have internal predecessors, (435414), 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 10:55:09,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148880 states to 148880 states and 435414 transitions. [2022-09-16 10:55:09,999 INFO L78 Accepts]: Start accepts. Automaton has 148880 states and 435414 transitions. Word has length 95 [2022-09-16 10:55:10,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:10,000 INFO L495 AbstractCegarLoop]: Abstraction has 148880 states and 435414 transitions. [2022-09-16 10:55:10,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 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 10:55:10,000 INFO L276 IsEmpty]: Start isEmpty. Operand 148880 states and 435414 transitions. [2022-09-16 10:55:10,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:55:10,024 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:10,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:55:10,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-09-16 10:55:10,024 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:55:10,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:10,024 INFO L85 PathProgramCache]: Analyzing trace with hash -2094540539, now seen corresponding path program 1 times [2022-09-16 10:55:10,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:10,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226957230] [2022-09-16 10:55:10,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:10,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:10,052 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 10:55:10,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:10,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226957230] [2022-09-16 10:55:10,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226957230] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:55:10,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:55:10,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:55:10,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722938876] [2022-09-16 10:55:10,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:55:10,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:55:10,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:10,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:55:10,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:55:10,054 INFO L87 Difference]: Start difference. First operand 148880 states and 435414 transitions. Second operand has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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 10:55:11,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:11,880 INFO L93 Difference]: Finished difference Result 246876 states and 718492 transitions. [2022-09-16 10:55:11,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:55:11,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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 96 [2022-09-16 10:55:11,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:13,302 INFO L225 Difference]: With dead ends: 246876 [2022-09-16 10:55:13,302 INFO L226 Difference]: Without dead ends: 246824 [2022-09-16 10:55:13,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:55:13,303 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 353 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:13,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 1248 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:55:13,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246824 states. [2022-09-16 10:55:17,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246824 to 162242. [2022-09-16 10:55:17,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162242 states, 161972 states have (on average 2.9299014644506456) internal successors, (474562), 162241 states have internal predecessors, (474562), 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 10:55:18,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162242 states to 162242 states and 474562 transitions. [2022-09-16 10:55:18,995 INFO L78 Accepts]: Start accepts. Automaton has 162242 states and 474562 transitions. Word has length 96 [2022-09-16 10:55:18,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:18,996 INFO L495 AbstractCegarLoop]: Abstraction has 162242 states and 474562 transitions. [2022-09-16 10:55:18,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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 10:55:18,996 INFO L276 IsEmpty]: Start isEmpty. Operand 162242 states and 474562 transitions. [2022-09-16 10:55:19,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-09-16 10:55:19,028 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:19,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:55:19,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-09-16 10:55:19,029 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:55:19,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:19,029 INFO L85 PathProgramCache]: Analyzing trace with hash -471827992, now seen corresponding path program 1 times [2022-09-16 10:55:19,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:19,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627239440] [2022-09-16 10:55:19,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:19,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:19,085 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 10:55:19,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:19,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627239440] [2022-09-16 10:55:19,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627239440] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:55:19,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:55:19,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:55:19,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012333417] [2022-09-16 10:55:19,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:55:19,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:55:19,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:19,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:55:19,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:55:19,087 INFO L87 Difference]: Start difference. First operand 162242 states and 474562 transitions. Second operand has 6 states, 5 states have (on average 19.6) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:55:22,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:22,170 INFO L93 Difference]: Finished difference Result 390676 states and 1134843 transitions. [2022-09-16 10:55:22,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:55:22,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.6) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-09-16 10:55:22,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:24,891 INFO L225 Difference]: With dead ends: 390676 [2022-09-16 10:55:24,892 INFO L226 Difference]: Without dead ends: 390676 [2022-09-16 10:55:24,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:55:24,892 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 1109 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 2225 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:24,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 2225 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:55:25,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390676 states. [2022-09-16 10:55:31,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390676 to 172832. [2022-09-16 10:55:31,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172832 states, 172562 states have (on average 2.9281243842792737) internal successors, (505283), 172831 states have internal predecessors, (505283), 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 10:55:33,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172832 states to 172832 states and 505283 transitions. [2022-09-16 10:55:33,040 INFO L78 Accepts]: Start accepts. Automaton has 172832 states and 505283 transitions. Word has length 98 [2022-09-16 10:55:33,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:33,041 INFO L495 AbstractCegarLoop]: Abstraction has 172832 states and 505283 transitions. [2022-09-16 10:55:33,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.6) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:55:33,041 INFO L276 IsEmpty]: Start isEmpty. Operand 172832 states and 505283 transitions. [2022-09-16 10:55:33,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-09-16 10:55:33,071 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:33,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:55:33,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-09-16 10:55:33,072 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:55:33,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:33,072 INFO L85 PathProgramCache]: Analyzing trace with hash -2029002854, now seen corresponding path program 1 times [2022-09-16 10:55:33,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:33,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344922575] [2022-09-16 10:55:33,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:33,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:33,126 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 10:55:33,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:33,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344922575] [2022-09-16 10:55:33,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344922575] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:55:33,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:55:33,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 10:55:33,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601831096] [2022-09-16 10:55:33,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:55:33,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 10:55:33,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:33,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 10:55:33,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:55:33,129 INFO L87 Difference]: Start difference. First operand 172832 states and 505283 transitions. Second operand has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 8 states have internal predecessors, (101), 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 10:55:37,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:37,416 INFO L93 Difference]: Finished difference Result 450464 states and 1307547 transitions. [2022-09-16 10:55:37,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:55:37,416 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 8 states have internal predecessors, (101), 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 101 [2022-09-16 10:55:37,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:39,961 INFO L225 Difference]: With dead ends: 450464 [2022-09-16 10:55:39,962 INFO L226 Difference]: Without dead ends: 450464 [2022-09-16 10:55:39,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:55:39,963 INFO L413 NwaCegarLoop]: 986 mSDtfsCounter, 1975 mSDsluCounter, 3952 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 4905 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:39,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1975 Valid, 4905 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:55:41,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450464 states. [2022-09-16 10:55:47,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450464 to 209203. [2022-09-16 10:55:48,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209203 states, 208933 states have (on average 2.941421412605955) internal successors, (614560), 209202 states have internal predecessors, (614560), 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 10:55:49,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209203 states to 209203 states and 614560 transitions. [2022-09-16 10:55:49,531 INFO L78 Accepts]: Start accepts. Automaton has 209203 states and 614560 transitions. Word has length 101 [2022-09-16 10:55:49,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:49,531 INFO L495 AbstractCegarLoop]: Abstraction has 209203 states and 614560 transitions. [2022-09-16 10:55:49,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 8 states have internal predecessors, (101), 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 10:55:49,531 INFO L276 IsEmpty]: Start isEmpty. Operand 209203 states and 614560 transitions. [2022-09-16 10:55:49,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-09-16 10:55:49,575 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:49,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:55:49,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-09-16 10:55:49,576 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:55:49,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:49,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1525421941, now seen corresponding path program 1 times [2022-09-16 10:55:49,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:49,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920243096] [2022-09-16 10:55:49,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:49,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:49,610 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 10:55:49,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:49,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920243096] [2022-09-16 10:55:49,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920243096] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:55:49,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:55:49,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:55:49,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229607547] [2022-09-16 10:55:49,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:55:49,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:55:49,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:49,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:55:49,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:55:49,612 INFO L87 Difference]: Start difference. First operand 209203 states and 614560 transitions. Second operand has 4 states, 3 states have (on average 34.0) internal successors, (102), 4 states have internal predecessors, (102), 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 10:55:52,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:52,506 INFO L93 Difference]: Finished difference Result 346108 states and 1012151 transitions. [2022-09-16 10:55:52,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:55:52,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.0) internal successors, (102), 4 states have internal predecessors, (102), 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 102 [2022-09-16 10:55:52,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:54,498 INFO L225 Difference]: With dead ends: 346108 [2022-09-16 10:55:54,498 INFO L226 Difference]: Without dead ends: 346053 [2022-09-16 10:55:54,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:55:54,499 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 342 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:54,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 1231 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:55:55,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346053 states. [2022-09-16 10:56:01,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346053 to 227825. [2022-09-16 10:56:01,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227825 states, 227561 states have (on average 2.941461849789727) internal successors, (669362), 227824 states have internal predecessors, (669362), 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 10:56:04,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227825 states to 227825 states and 669362 transitions. [2022-09-16 10:56:04,058 INFO L78 Accepts]: Start accepts. Automaton has 227825 states and 669362 transitions. Word has length 102 [2022-09-16 10:56:04,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:56:04,058 INFO L495 AbstractCegarLoop]: Abstraction has 227825 states and 669362 transitions. [2022-09-16 10:56:04,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.0) internal successors, (102), 4 states have internal predecessors, (102), 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 10:56:04,058 INFO L276 IsEmpty]: Start isEmpty. Operand 227825 states and 669362 transitions. [2022-09-16 10:56:04,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-09-16 10:56:04,114 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:56:04,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:56:04,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-09-16 10:56:04,114 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:56:04,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:56:04,115 INFO L85 PathProgramCache]: Analyzing trace with hash -611390664, now seen corresponding path program 1 times [2022-09-16 10:56:04,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:56:04,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479808311] [2022-09-16 10:56:04,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:56:04,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:56:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:56:04,176 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 10:56:04,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:56:04,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479808311] [2022-09-16 10:56:04,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479808311] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:56:04,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:56:04,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:56:04,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815827514] [2022-09-16 10:56:04,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:56:04,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:56:04,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:56:04,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:56:04,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:56:04,179 INFO L87 Difference]: Start difference. First operand 227825 states and 669362 transitions. Second operand has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 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 10:56:11,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:56:11,668 INFO L93 Difference]: Finished difference Result 547231 states and 1596895 transitions. [2022-09-16 10:56:11,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:56:11,669 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 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 104 [2022-09-16 10:56:11,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:56:14,768 INFO L225 Difference]: With dead ends: 547231 [2022-09-16 10:56:14,768 INFO L226 Difference]: Without dead ends: 547231 [2022-09-16 10:56:14,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:56:14,769 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 1079 mSDsluCounter, 1649 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 2188 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:56:14,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 2188 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:56:16,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547231 states. [2022-09-16 10:56:24,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547231 to 242570. [2022-09-16 10:56:24,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242570 states, 242306 states have (on average 2.939671324688617) internal successors, (712300), 242569 states have internal predecessors, (712300), 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 10:56:26,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242570 states to 242570 states and 712300 transitions. [2022-09-16 10:56:26,353 INFO L78 Accepts]: Start accepts. Automaton has 242570 states and 712300 transitions. Word has length 104 [2022-09-16 10:56:26,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:56:26,353 INFO L495 AbstractCegarLoop]: Abstraction has 242570 states and 712300 transitions. [2022-09-16 10:56:26,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 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 10:56:26,353 INFO L276 IsEmpty]: Start isEmpty. Operand 242570 states and 712300 transitions. [2022-09-16 10:56:26,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-09-16 10:56:26,389 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:56:26,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:56:26,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-09-16 10:56:26,390 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:56:26,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:56:26,390 INFO L85 PathProgramCache]: Analyzing trace with hash -892866691, now seen corresponding path program 1 times [2022-09-16 10:56:26,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:56:26,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183491780] [2022-09-16 10:56:26,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:56:26,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:56:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:56:26,454 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 10:56:26,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:56:26,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183491780] [2022-09-16 10:56:26,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183491780] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:56:26,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:56:26,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 10:56:26,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110006179] [2022-09-16 10:56:26,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:56:26,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 10:56:26,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:56:26,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 10:56:26,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:56:26,456 INFO L87 Difference]: Start difference. First operand 242570 states and 712300 transitions. Second operand has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 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 10:56:30,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:56:30,549 INFO L93 Difference]: Finished difference Result 424474 states and 1234566 transitions. [2022-09-16 10:56:30,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 10:56:30,550 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 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 105 [2022-09-16 10:56:30,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:56:34,305 INFO L225 Difference]: With dead ends: 424474 [2022-09-16 10:56:34,306 INFO L226 Difference]: Without dead ends: 424474 [2022-09-16 10:56:34,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2022-09-16 10:56:34,306 INFO L413 NwaCegarLoop]: 1005 mSDtfsCounter, 1831 mSDsluCounter, 3724 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 4695 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:56:34,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 4695 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:56:35,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424474 states. [2022-09-16 10:56:43,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424474 to 276230. [2022-09-16 10:56:43,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276230 states, 275966 states have (on average 2.9422465086278744) internal successors, (811960), 276229 states have internal predecessors, (811960), 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 10:56:46,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276230 states to 276230 states and 811960 transitions. [2022-09-16 10:56:46,144 INFO L78 Accepts]: Start accepts. Automaton has 276230 states and 811960 transitions. Word has length 105 [2022-09-16 10:56:46,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:56:46,144 INFO L495 AbstractCegarLoop]: Abstraction has 276230 states and 811960 transitions. [2022-09-16 10:56:46,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 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 10:56:46,145 INFO L276 IsEmpty]: Start isEmpty. Operand 276230 states and 811960 transitions. [2022-09-16 10:56:46,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-09-16 10:56:46,207 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:56:46,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:56:46,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-09-16 10:56:46,208 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:56:46,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:56:46,208 INFO L85 PathProgramCache]: Analyzing trace with hash -542862377, now seen corresponding path program 1 times [2022-09-16 10:56:46,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:56:46,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587706317] [2022-09-16 10:56:46,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:56:46,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:56:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:56:46,242 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 10:56:46,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:56:46,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587706317] [2022-09-16 10:56:46,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587706317] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:56:46,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:56:46,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:56:46,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658515419] [2022-09-16 10:56:46,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:56:46,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:56:46,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:56:46,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:56:46,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:56:46,244 INFO L87 Difference]: Start difference. First operand 276230 states and 811960 transitions. Second operand has 4 states, 3 states have (on average 35.666666666666664) internal successors, (107), 4 states have internal predecessors, (107), 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 10:56:49,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:56:49,580 INFO L93 Difference]: Finished difference Result 404954 states and 1183028 transitions. [2022-09-16 10:56:49,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:56:49,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 35.666666666666664) internal successors, (107), 4 states have internal predecessors, (107), 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 107 [2022-09-16 10:56:49,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:56:51,952 INFO L225 Difference]: With dead ends: 404954 [2022-09-16 10:56:51,953 INFO L226 Difference]: Without dead ends: 404954 [2022-09-16 10:56:51,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:56:51,954 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 440 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:56:51,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 943 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:56:52,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404954 states. [2022-09-16 10:56:59,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404954 to 266330. [2022-09-16 10:56:59,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266330 states, 266066 states have (on average 2.9348582682492315) internal successors, (780866), 266329 states have internal predecessors, (780866), 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 10:57:02,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266330 states to 266330 states and 780866 transitions. [2022-09-16 10:57:02,263 INFO L78 Accepts]: Start accepts. Automaton has 266330 states and 780866 transitions. Word has length 107 [2022-09-16 10:57:02,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:57:02,264 INFO L495 AbstractCegarLoop]: Abstraction has 266330 states and 780866 transitions. [2022-09-16 10:57:02,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 35.666666666666664) internal successors, (107), 4 states have internal predecessors, (107), 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 10:57:02,264 INFO L276 IsEmpty]: Start isEmpty. Operand 266330 states and 780866 transitions. [2022-09-16 10:57:02,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-09-16 10:57:02,329 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:57:02,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:57:02,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-09-16 10:57:02,330 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:57:02,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:57:02,330 INFO L85 PathProgramCache]: Analyzing trace with hash 965260489, now seen corresponding path program 1 times [2022-09-16 10:57:02,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:57:02,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102965782] [2022-09-16 10:57:02,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:57:02,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:57:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:57:02,377 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 10:57:02,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:57:02,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102965782] [2022-09-16 10:57:02,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102965782] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:57:02,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:57:02,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:57:02,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435141356] [2022-09-16 10:57:02,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:57:02,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:57:02,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:57:02,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:57:02,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:57:02,379 INFO L87 Difference]: Start difference. First operand 266330 states and 780866 transitions. Second operand has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 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 10:57:07,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:57:07,792 INFO L93 Difference]: Finished difference Result 482254 states and 1405898 transitions. [2022-09-16 10:57:07,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:57:07,793 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 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 108 [2022-09-16 10:57:07,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:57:11,096 INFO L225 Difference]: With dead ends: 482254 [2022-09-16 10:57:11,096 INFO L226 Difference]: Without dead ends: 482254 [2022-09-16 10:57:11,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:57:11,097 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 1001 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:57:11,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 2132 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:57:12,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482254 states. [2022-09-16 10:57:19,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482254 to 258410. [2022-09-16 10:57:20,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258410 states, 258146 states have (on average 2.9339521046229655) internal successors, (757388), 258409 states have internal predecessors, (757388), 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 10:57:21,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258410 states to 258410 states and 757388 transitions. [2022-09-16 10:57:21,916 INFO L78 Accepts]: Start accepts. Automaton has 258410 states and 757388 transitions. Word has length 108 [2022-09-16 10:57:21,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:57:21,916 INFO L495 AbstractCegarLoop]: Abstraction has 258410 states and 757388 transitions. [2022-09-16 10:57:21,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 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 10:57:21,916 INFO L276 IsEmpty]: Start isEmpty. Operand 258410 states and 757388 transitions. [2022-09-16 10:57:21,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-09-16 10:57:21,966 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:57:21,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:57:21,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-09-16 10:57:21,966 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:57:21,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:57:21,967 INFO L85 PathProgramCache]: Analyzing trace with hash -985008587, now seen corresponding path program 1 times [2022-09-16 10:57:21,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:57:21,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269985146] [2022-09-16 10:57:21,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:57:21,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:57:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:57:22,014 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 10:57:22,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:57:22,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269985146] [2022-09-16 10:57:22,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269985146] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:57:22,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:57:22,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:57:22,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383740078] [2022-09-16 10:57:22,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:57:22,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:57:22,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:57:22,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:57:22,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:57:22,016 INFO L87 Difference]: Start difference. First operand 258410 states and 757388 transitions. Second operand has 4 states, 3 states have (on average 36.666666666666664) internal successors, (110), 4 states have internal predecessors, (110), 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 10:57:25,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:57:25,730 INFO L93 Difference]: Finished difference Result 385210 states and 1124950 transitions. [2022-09-16 10:57:25,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:57:25,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 36.666666666666664) internal successors, (110), 4 states have internal predecessors, (110), 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 110 [2022-09-16 10:57:25,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:57:27,959 INFO L225 Difference]: With dead ends: 385210 [2022-09-16 10:57:27,959 INFO L226 Difference]: Without dead ends: 385154 [2022-09-16 10:57:27,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:57:27,960 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 424 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:57:27,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 975 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:57:28,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385154 states. [2022-09-16 10:57:34,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385154 to 221780. [2022-09-16 10:57:35,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221780 states, 221534 states have (on average 2.935278557693176) internal successors, (650264), 221779 states have internal predecessors, (650264), 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 10:57:36,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221780 states to 221780 states and 650264 transitions. [2022-09-16 10:57:36,636 INFO L78 Accepts]: Start accepts. Automaton has 221780 states and 650264 transitions. Word has length 110 [2022-09-16 10:57:36,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:57:36,636 INFO L495 AbstractCegarLoop]: Abstraction has 221780 states and 650264 transitions. [2022-09-16 10:57:36,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 36.666666666666664) internal successors, (110), 4 states have internal predecessors, (110), 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 10:57:36,636 INFO L276 IsEmpty]: Start isEmpty. Operand 221780 states and 650264 transitions. [2022-09-16 10:57:36,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-09-16 10:57:36,678 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:57:36,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:57:36,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-09-16 10:57:36,679 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:57:36,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:57:36,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1218350076, now seen corresponding path program 1 times [2022-09-16 10:57:36,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:57:36,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016725531] [2022-09-16 10:57:36,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:57:36,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:57:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:57:36,741 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 10:57:36,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:57:36,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016725531] [2022-09-16 10:57:36,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016725531] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:57:36,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:57:36,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 10:57:36,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235770552] [2022-09-16 10:57:36,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:57:36,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 10:57:36,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:57:36,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 10:57:36,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:57:36,744 INFO L87 Difference]: Start difference. First operand 221780 states and 650264 transitions. Second operand has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 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 10:57:40,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:57:40,701 INFO L93 Difference]: Finished difference Result 387105 states and 1124636 transitions. [2022-09-16 10:57:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 10:57:40,701 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 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 111 [2022-09-16 10:57:40,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:57:44,058 INFO L225 Difference]: With dead ends: 387105 [2022-09-16 10:57:44,059 INFO L226 Difference]: Without dead ends: 387105 [2022-09-16 10:57:44,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2022-09-16 10:57:44,060 INFO L413 NwaCegarLoop]: 978 mSDtfsCounter, 1805 mSDsluCounter, 3622 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 4569 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:57:44,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1805 Valid, 4569 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:57:44,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387105 states. [2022-09-16 10:57:51,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387105 to 252346. [2022-09-16 10:57:51,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252346 states, 252100 states have (on average 2.9376675922253073) internal successors, (740586), 252345 states have internal predecessors, (740586), 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 10:57:53,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252346 states to 252346 states and 740586 transitions. [2022-09-16 10:57:53,339 INFO L78 Accepts]: Start accepts. Automaton has 252346 states and 740586 transitions. Word has length 111 [2022-09-16 10:57:53,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:57:53,339 INFO L495 AbstractCegarLoop]: Abstraction has 252346 states and 740586 transitions. [2022-09-16 10:57:53,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 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 10:57:53,340 INFO L276 IsEmpty]: Start isEmpty. Operand 252346 states and 740586 transitions. [2022-09-16 10:57:53,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-09-16 10:57:53,391 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:57:53,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:57:53,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-09-16 10:57:53,391 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:57:53,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:57:53,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1454427682, now seen corresponding path program 1 times [2022-09-16 10:57:53,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:57:53,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461569447] [2022-09-16 10:57:53,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:57:53,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:57:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:57:53,514 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 10:57:53,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:57:53,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461569447] [2022-09-16 10:57:53,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461569447] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:57:53,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:57:53,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-09-16 10:57:53,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882689730] [2022-09-16 10:57:53,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:57:53,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-09-16 10:57:53,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:57:53,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-09-16 10:57:53,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-09-16 10:57:53,517 INFO L87 Difference]: Start difference. First operand 252346 states and 740586 transitions. Second operand has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 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 10:57:56,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:57:56,332 INFO L93 Difference]: Finished difference Result 295204 states and 857010 transitions. [2022-09-16 10:57:56,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 10:57:56,333 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 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 111 [2022-09-16 10:57:56,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:57:57,973 INFO L225 Difference]: With dead ends: 295204 [2022-09-16 10:57:57,973 INFO L226 Difference]: Without dead ends: 295204 [2022-09-16 10:57:57,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=238, Invalid=632, Unknown=0, NotChecked=0, Total=870 [2022-09-16 10:57:57,974 INFO L413 NwaCegarLoop]: 1597 mSDtfsCounter, 3015 mSDsluCounter, 9826 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3015 SdHoareTripleChecker+Valid, 11337 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:57:57,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3015 Valid, 11337 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:57:58,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295204 states. [2022-09-16 10:58:03,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295204 to 260228. [2022-09-16 10:58:04,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260228 states, 260000 states have (on average 2.9345615384615384) internal successors, (762986), 260227 states have internal predecessors, (762986), 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 10:58:05,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260228 states to 260228 states and 762986 transitions. [2022-09-16 10:58:05,942 INFO L78 Accepts]: Start accepts. Automaton has 260228 states and 762986 transitions. Word has length 111 [2022-09-16 10:58:05,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:58:05,942 INFO L495 AbstractCegarLoop]: Abstraction has 260228 states and 762986 transitions. [2022-09-16 10:58:05,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 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 10:58:05,943 INFO L276 IsEmpty]: Start isEmpty. Operand 260228 states and 762986 transitions. [2022-09-16 10:58:05,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-09-16 10:58:05,995 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:05,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:58:05,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-09-16 10:58:05,995 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:58:05,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:05,996 INFO L85 PathProgramCache]: Analyzing trace with hash 2137586067, now seen corresponding path program 1 times [2022-09-16 10:58:05,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:05,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753287159] [2022-09-16 10:58:05,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:05,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:06,118 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 10:58:06,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:06,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753287159] [2022-09-16 10:58:06,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753287159] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:58:06,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:58:06,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-09-16 10:58:06,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256687686] [2022-09-16 10:58:06,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:58:06,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-09-16 10:58:06,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:06,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-09-16 10:58:06,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-09-16 10:58:06,120 INFO L87 Difference]: Start difference. First operand 260228 states and 762986 transitions. Second operand has 14 states, 13 states have (on average 8.615384615384615) internal successors, (112), 14 states have internal predecessors, (112), 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 10:58:09,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:58:09,450 INFO L93 Difference]: Finished difference Result 308548 states and 891598 transitions. [2022-09-16 10:58:09,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 10:58:09,451 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.615384615384615) internal successors, (112), 14 states have internal predecessors, (112), 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 112 [2022-09-16 10:58:09,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:58:10,641 INFO L225 Difference]: With dead ends: 308548 [2022-09-16 10:58:10,642 INFO L226 Difference]: Without dead ends: 308548 [2022-09-16 10:58:10,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=238, Invalid=632, Unknown=0, NotChecked=0, Total=870 [2022-09-16 10:58:10,642 INFO L413 NwaCegarLoop]: 1586 mSDtfsCounter, 3461 mSDsluCounter, 9287 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3461 SdHoareTripleChecker+Valid, 10791 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:10,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3461 Valid, 10791 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:58:11,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308548 states. [2022-09-16 10:58:18,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308548 to 259102. [2022-09-16 10:58:18,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259102 states, 258892 states have (on average 2.9303802357739905) internal successors, (758652), 259101 states have internal predecessors, (758652), 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 10:58:20,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259102 states to 259102 states and 758652 transitions. [2022-09-16 10:58:20,625 INFO L78 Accepts]: Start accepts. Automaton has 259102 states and 758652 transitions. Word has length 112 [2022-09-16 10:58:20,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:58:20,625 INFO L495 AbstractCegarLoop]: Abstraction has 259102 states and 758652 transitions. [2022-09-16 10:58:20,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.615384615384615) internal successors, (112), 14 states have internal predecessors, (112), 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 10:58:20,625 INFO L276 IsEmpty]: Start isEmpty. Operand 259102 states and 758652 transitions. [2022-09-16 10:58:20,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-09-16 10:58:20,688 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:20,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:58:20,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-09-16 10:58:20,689 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:58:20,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:20,689 INFO L85 PathProgramCache]: Analyzing trace with hash 200221054, now seen corresponding path program 1 times [2022-09-16 10:58:20,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:20,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549961184] [2022-09-16 10:58:20,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:20,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:20,727 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 10:58:20,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:20,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549961184] [2022-09-16 10:58:20,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549961184] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:58:20,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:58:20,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:58:20,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62048683] [2022-09-16 10:58:20,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:58:20,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:58:20,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:20,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:58:20,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:58:20,730 INFO L87 Difference]: Start difference. First operand 259102 states and 758652 transitions. Second operand has 4 states, 3 states have (on average 37.666666666666664) internal successors, (113), 4 states have internal predecessors, (113), 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 10:58:23,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:58:23,600 INFO L93 Difference]: Finished difference Result 379300 states and 1104212 transitions. [2022-09-16 10:58:23,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:58:23,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 37.666666666666664) internal successors, (113), 4 states have internal predecessors, (113), 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 113 [2022-09-16 10:58:23,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:58:25,565 INFO L225 Difference]: With dead ends: 379300 [2022-09-16 10:58:25,565 INFO L226 Difference]: Without dead ends: 379300 [2022-09-16 10:58:25,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:58:25,566 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 422 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:25,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 917 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:58:26,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379300 states. [2022-09-16 10:58:31,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379300 to 249872. [2022-09-16 10:58:32,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249872 states, 249662 states have (on average 2.923063982504346) internal successors, (729778), 249871 states have internal predecessors, (729778), 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 10:58:34,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249872 states to 249872 states and 729778 transitions. [2022-09-16 10:58:34,366 INFO L78 Accepts]: Start accepts. Automaton has 249872 states and 729778 transitions. Word has length 113 [2022-09-16 10:58:34,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:58:34,366 INFO L495 AbstractCegarLoop]: Abstraction has 249872 states and 729778 transitions. [2022-09-16 10:58:34,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 37.666666666666664) internal successors, (113), 4 states have internal predecessors, (113), 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 10:58:34,366 INFO L276 IsEmpty]: Start isEmpty. Operand 249872 states and 729778 transitions. [2022-09-16 10:58:34,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-09-16 10:58:34,435 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:34,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:58:34,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-09-16 10:58:34,436 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:58:34,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:34,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1768956807, now seen corresponding path program 1 times [2022-09-16 10:58:34,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:34,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981251005] [2022-09-16 10:58:34,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:34,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:34,477 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 10:58:34,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:34,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981251005] [2022-09-16 10:58:34,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981251005] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:58:34,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:58:34,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:58:34,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297033715] [2022-09-16 10:58:34,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:58:34,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:58:34,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:34,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:58:34,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:58:34,479 INFO L87 Difference]: Start difference. First operand 249872 states and 729778 transitions. Second operand has 6 states, 5 states have (on average 22.8) internal successors, (114), 6 states have internal predecessors, (114), 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 10:58:38,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:58:38,323 INFO L93 Difference]: Finished difference Result 451557 states and 1311329 transitions. [2022-09-16 10:58:38,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:58:38,323 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.8) internal successors, (114), 6 states have internal predecessors, (114), 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 10:58:38,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:58:41,823 INFO L225 Difference]: With dead ends: 451557 [2022-09-16 10:58:41,823 INFO L226 Difference]: Without dead ends: 451557 [2022-09-16 10:58:41,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:58:41,824 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 962 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:41,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 2075 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:58:43,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451557 states. [2022-09-16 10:58:49,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451557 to 242488. [2022-09-16 10:58:50,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242488 states, 242278 states have (on average 2.92218856024897) internal successors, (707982), 242487 states have internal predecessors, (707982), 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 10:58:52,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242488 states to 242488 states and 707982 transitions. [2022-09-16 10:58:52,049 INFO L78 Accepts]: Start accepts. Automaton has 242488 states and 707982 transitions. Word has length 114 [2022-09-16 10:58:52,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:58:52,049 INFO L495 AbstractCegarLoop]: Abstraction has 242488 states and 707982 transitions. [2022-09-16 10:58:52,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.8) internal successors, (114), 6 states have internal predecessors, (114), 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 10:58:52,050 INFO L276 IsEmpty]: Start isEmpty. Operand 242488 states and 707982 transitions. [2022-09-16 10:58:52,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-09-16 10:58:52,105 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:52,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:58:52,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-09-16 10:58:52,105 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:58:52,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:52,106 INFO L85 PathProgramCache]: Analyzing trace with hash 998818679, now seen corresponding path program 1 times [2022-09-16 10:58:52,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:52,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633777036] [2022-09-16 10:58:52,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:52,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:52,166 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 10:58:52,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:52,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633777036] [2022-09-16 10:58:52,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633777036] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:58:52,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:58:52,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-09-16 10:58:52,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401416300] [2022-09-16 10:58:52,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:58:52,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-16 10:58:52,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:52,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-16 10:58:52,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:58:52,168 INFO L87 Difference]: Start difference. First operand 242488 states and 707982 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 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 10:58:56,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:58:56,160 INFO L93 Difference]: Finished difference Result 437270 states and 1265052 transitions. [2022-09-16 10:58:56,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-09-16 10:58:56,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 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 10:58:56,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:58:57,987 INFO L225 Difference]: With dead ends: 437270 [2022-09-16 10:58:57,987 INFO L226 Difference]: Without dead ends: 437270 [2022-09-16 10:58:57,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:58:57,988 INFO L413 NwaCegarLoop]: 1126 mSDtfsCounter, 1981 mSDsluCounter, 6095 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1981 SdHoareTripleChecker+Valid, 7165 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:57,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1981 Valid, 7165 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:58:59,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437270 states. [2022-09-16 10:59:05,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437270 to 288192. [2022-09-16 10:59:06,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288192 states, 287982 states have (on average 2.9245091707120583) internal successors, (842206), 288191 states have internal predecessors, (842206), 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 10:59:08,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288192 states to 288192 states and 842206 transitions. [2022-09-16 10:59:08,717 INFO L78 Accepts]: Start accepts. Automaton has 288192 states and 842206 transitions. Word has length 114 [2022-09-16 10:59:08,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:59:08,718 INFO L495 AbstractCegarLoop]: Abstraction has 288192 states and 842206 transitions. [2022-09-16 10:59:08,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 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 10:59:08,718 INFO L276 IsEmpty]: Start isEmpty. Operand 288192 states and 842206 transitions. [2022-09-16 10:59:08,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-09-16 10:59:08,786 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:59:08,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:08,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-09-16 10:59:08,786 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:59:08,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:59:08,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1625639079, now seen corresponding path program 1 times [2022-09-16 10:59:08,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:59:08,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384201401] [2022-09-16 10:59:08,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:08,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:59:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:08,845 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 10:59:08,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:59:08,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384201401] [2022-09-16 10:59:08,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384201401] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:59:08,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:59:08,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-09-16 10:59:08,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982626654] [2022-09-16 10:59:08,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:59:08,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-16 10:59:08,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:59:08,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-16 10:59:08,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:59:08,847 INFO L87 Difference]: Start difference. First operand 288192 states and 842206 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 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 10:59:14,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:59:14,354 INFO L93 Difference]: Finished difference Result 444816 states and 1286516 transitions. [2022-09-16 10:59:14,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-09-16 10:59:14,354 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 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 115 [2022-09-16 10:59:14,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:16,735 INFO L225 Difference]: With dead ends: 444816 [2022-09-16 10:59:16,735 INFO L226 Difference]: Without dead ends: 444816 [2022-09-16 10:59:16,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:59:16,736 INFO L413 NwaCegarLoop]: 1126 mSDtfsCounter, 1915 mSDsluCounter, 6083 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1915 SdHoareTripleChecker+Valid, 7153 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:16,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1915 Valid, 7153 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:59:17,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444816 states. [2022-09-16 10:59:24,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444816 to 299460. [2022-09-16 10:59:25,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299460 states, 299261 states have (on average 2.913189490110639) internal successors, (871804), 299459 states have internal predecessors, (871804), 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 10:59:27,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299460 states to 299460 states and 871804 transitions. [2022-09-16 10:59:27,015 INFO L78 Accepts]: Start accepts. Automaton has 299460 states and 871804 transitions. Word has length 115 [2022-09-16 10:59:27,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:59:27,016 INFO L495 AbstractCegarLoop]: Abstraction has 299460 states and 871804 transitions. [2022-09-16 10:59:27,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 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 10:59:27,016 INFO L276 IsEmpty]: Start isEmpty. Operand 299460 states and 871804 transitions. [2022-09-16 10:59:27,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-09-16 10:59:27,080 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:59:27,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:27,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-09-16 10:59:27,081 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:59:27,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:59:27,081 INFO L85 PathProgramCache]: Analyzing trace with hash -47841083, now seen corresponding path program 1 times [2022-09-16 10:59:27,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:59:27,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083308990] [2022-09-16 10:59:27,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:27,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:59:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:27,127 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 10:59:27,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:59:27,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083308990] [2022-09-16 10:59:27,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083308990] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:59:27,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:59:27,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:59:27,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568058229] [2022-09-16 10:59:27,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:59:27,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:59:27,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:59:27,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:59:27,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:59:27,129 INFO L87 Difference]: Start difference. First operand 299460 states and 871804 transitions. Second operand has 4 states, 3 states have (on average 38.666666666666664) internal successors, (116), 4 states have internal predecessors, (116), 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 10:59:30,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:59:30,956 INFO L93 Difference]: Finished difference Result 445779 states and 1293506 transitions. [2022-09-16 10:59:30,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:59:30,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 38.666666666666664) internal successors, (116), 4 states have internal predecessors, (116), 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 116 [2022-09-16 10:59:30,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:33,266 INFO L225 Difference]: With dead ends: 445779 [2022-09-16 10:59:33,267 INFO L226 Difference]: Without dead ends: 445728 [2022-09-16 10:59:33,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:59:33,267 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 325 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:33,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 1202 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:59:34,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445728 states. [2022-09-16 10:59:40,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445728 to 257317. [2022-09-16 10:59:41,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257317 states, 257131 states have (on average 2.914557171247341) internal successors, (749423), 257316 states have internal predecessors, (749423), 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 10:59:42,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257317 states to 257317 states and 749423 transitions. [2022-09-16 10:59:42,968 INFO L78 Accepts]: Start accepts. Automaton has 257317 states and 749423 transitions. Word has length 116 [2022-09-16 10:59:42,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:59:42,968 INFO L495 AbstractCegarLoop]: Abstraction has 257317 states and 749423 transitions. [2022-09-16 10:59:42,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 38.666666666666664) internal successors, (116), 4 states have internal predecessors, (116), 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 10:59:42,968 INFO L276 IsEmpty]: Start isEmpty. Operand 257317 states and 749423 transitions. [2022-09-16 10:59:43,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-09-16 10:59:43,032 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:59:43,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:43,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-09-16 10:59:43,033 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:59:43,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:59:43,033 INFO L85 PathProgramCache]: Analyzing trace with hash 441849353, now seen corresponding path program 1 times [2022-09-16 10:59:43,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:59:43,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040500971] [2022-09-16 10:59:43,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:43,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:59:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:43,146 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 10:59:43,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:59:43,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040500971] [2022-09-16 10:59:43,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040500971] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:59:43,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:59:43,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-09-16 10:59:43,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837391436] [2022-09-16 10:59:43,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:59:43,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-09-16 10:59:43,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:59:43,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-09-16 10:59:43,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-09-16 10:59:43,148 INFO L87 Difference]: Start difference. First operand 257317 states and 749423 transitions. Second operand has 14 states, 13 states have (on average 9.0) internal successors, (117), 14 states have internal predecessors, (117), 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 10:59:46,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:59:46,882 INFO L93 Difference]: Finished difference Result 301024 states and 866718 transitions. [2022-09-16 10:59:46,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 10:59:46,882 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.0) internal successors, (117), 14 states have internal predecessors, (117), 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 117 [2022-09-16 10:59:46,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:48,838 INFO L225 Difference]: With dead ends: 301024 [2022-09-16 10:59:48,838 INFO L226 Difference]: Without dead ends: 301024 [2022-09-16 10:59:48,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=238, Invalid=632, Unknown=0, NotChecked=0, Total=870 [2022-09-16 10:59:48,839 INFO L413 NwaCegarLoop]: 1526 mSDtfsCounter, 2812 mSDsluCounter, 10073 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2812 SdHoareTripleChecker+Valid, 11509 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:48,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2812 Valid, 11509 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:59:49,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301024 states. [2022-09-16 10:59:55,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301024 to 265290. [2022-09-16 10:59:55,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265290 states, 265117 states have (on average 2.911537170381379) internal successors, (771898), 265289 states have internal predecessors, (771898), 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 10:59:57,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265290 states to 265290 states and 771898 transitions. [2022-09-16 10:59:57,416 INFO L78 Accepts]: Start accepts. Automaton has 265290 states and 771898 transitions. Word has length 117 [2022-09-16 10:59:57,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:59:57,417 INFO L495 AbstractCegarLoop]: Abstraction has 265290 states and 771898 transitions. [2022-09-16 10:59:57,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.0) internal successors, (117), 14 states have internal predecessors, (117), 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 10:59:57,417 INFO L276 IsEmpty]: Start isEmpty. Operand 265290 states and 771898 transitions. [2022-09-16 10:59:57,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-09-16 10:59:57,493 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:59:57,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:57,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-09-16 10:59:57,494 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 10:59:57,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:59:57,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1856189355, now seen corresponding path program 1 times [2022-09-16 10:59:57,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:59:57,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057534348] [2022-09-16 10:59:57,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:57,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:59:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:57,611 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 10:59:57,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:59:57,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057534348] [2022-09-16 10:59:57,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057534348] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:59:57,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:59:57,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-09-16 10:59:57,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046180467] [2022-09-16 10:59:57,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:59:57,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-09-16 10:59:57,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:59:57,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-09-16 10:59:57,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-09-16 10:59:57,613 INFO L87 Difference]: Start difference. First operand 265290 states and 771898 transitions. Second operand has 13 states, 12 states have (on average 9.75) internal successors, (117), 13 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:01,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:00:01,899 INFO L93 Difference]: Finished difference Result 454782 states and 1311870 transitions. [2022-09-16 11:00:01,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 11:00:01,899 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.75) internal successors, (117), 13 states have internal predecessors, (117), 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 117 [2022-09-16 11:00:01,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:00:04,350 INFO L225 Difference]: With dead ends: 454782 [2022-09-16 11:00:04,350 INFO L226 Difference]: Without dead ends: 454782 [2022-09-16 11:00:04,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2022-09-16 11:00:04,351 INFO L413 NwaCegarLoop]: 1463 mSDtfsCounter, 3569 mSDsluCounter, 11034 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3569 SdHoareTripleChecker+Valid, 12387 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:00:04,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3569 Valid, 12387 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:00:05,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454782 states. [2022-09-16 11:00:12,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454782 to 266224. [2022-09-16 11:00:13,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266224 states, 266051 states have (on average 2.911283926765921) internal successors, (774550), 266223 states have internal predecessors, (774550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:14,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266224 states to 266224 states and 774550 transitions. [2022-09-16 11:00:14,829 INFO L78 Accepts]: Start accepts. Automaton has 266224 states and 774550 transitions. Word has length 117 [2022-09-16 11:00:14,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:00:14,830 INFO L495 AbstractCegarLoop]: Abstraction has 266224 states and 774550 transitions. [2022-09-16 11:00:14,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.75) internal successors, (117), 13 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:14,830 INFO L276 IsEmpty]: Start isEmpty. Operand 266224 states and 774550 transitions. [2022-09-16 11:00:14,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-09-16 11:00:14,892 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:00:14,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:00:14,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-09-16 11:00:14,892 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 11:00:14,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:00:14,893 INFO L85 PathProgramCache]: Analyzing trace with hash 812429059, now seen corresponding path program 1 times [2022-09-16 11:00:14,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:00:14,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038073647] [2022-09-16 11:00:14,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:14,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:00:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:15,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:00:15,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:00:15,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038073647] [2022-09-16 11:00:15,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038073647] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:00:15,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:00:15,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-09-16 11:00:15,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82225201] [2022-09-16 11:00:15,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:00:15,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-09-16 11:00:15,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:00:15,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-09-16 11:00:15,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-09-16 11:00:15,026 INFO L87 Difference]: Start difference. First operand 266224 states and 774550 transitions. Second operand has 14 states, 13 states have (on average 9.076923076923077) internal successors, (118), 14 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:18,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:00:18,833 INFO L93 Difference]: Finished difference Result 315649 states and 904541 transitions. [2022-09-16 11:00:18,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 11:00:18,834 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.076923076923077) internal successors, (118), 14 states have internal predecessors, (118), 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 118 [2022-09-16 11:00:18,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:00:21,288 INFO L225 Difference]: With dead ends: 315649 [2022-09-16 11:00:21,288 INFO L226 Difference]: Without dead ends: 315649 [2022-09-16 11:00:21,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=238, Invalid=632, Unknown=0, NotChecked=0, Total=870 [2022-09-16 11:00:21,289 INFO L413 NwaCegarLoop]: 1515 mSDtfsCounter, 3333 mSDsluCounter, 8904 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3333 SdHoareTripleChecker+Valid, 10339 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 11:00:21,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3333 Valid, 10339 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 11:00:21,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315649 states. [2022-09-16 11:00:27,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315649 to 265081. [2022-09-16 11:00:27,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265081 states, 264921 states have (on average 2.907198749815983) internal successors, (770178), 265080 states have internal predecessors, (770178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:29,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265081 states to 265081 states and 770178 transitions. [2022-09-16 11:00:29,379 INFO L78 Accepts]: Start accepts. Automaton has 265081 states and 770178 transitions. Word has length 118 [2022-09-16 11:00:29,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:00:29,380 INFO L495 AbstractCegarLoop]: Abstraction has 265081 states and 770178 transitions. [2022-09-16 11:00:29,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.076923076923077) internal successors, (118), 14 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:29,380 INFO L276 IsEmpty]: Start isEmpty. Operand 265081 states and 770178 transitions. [2022-09-16 11:00:29,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-09-16 11:00:29,442 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:00:29,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:00:29,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-09-16 11:00:29,442 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 11:00:29,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:00:29,443 INFO L85 PathProgramCache]: Analyzing trace with hash -700852900, now seen corresponding path program 1 times [2022-09-16 11:00:29,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:00:29,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484605087] [2022-09-16 11:00:29,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:29,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:00:29,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:30,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:00:30,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:00:30,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484605087] [2022-09-16 11:00:30,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484605087] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:00:30,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:00:30,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-09-16 11:00:30,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851060695] [2022-09-16 11:00:30,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:00:30,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-09-16 11:00:30,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:00:30,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-09-16 11:00:30,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-09-16 11:00:30,015 INFO L87 Difference]: Start difference. First operand 265081 states and 770178 transitions. Second operand has 13 states, 12 states have (on average 9.833333333333334) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:33,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:00:33,599 INFO L93 Difference]: Finished difference Result 444453 states and 1279816 transitions. [2022-09-16 11:00:33,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 11:00:33,600 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.833333333333334) internal successors, (118), 13 states have internal predecessors, (118), 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 118 [2022-09-16 11:00:33,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:00:35,941 INFO L225 Difference]: With dead ends: 444453 [2022-09-16 11:00:35,942 INFO L226 Difference]: Without dead ends: 444453 [2022-09-16 11:00:35,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2022-09-16 11:00:35,942 INFO L413 NwaCegarLoop]: 1447 mSDtfsCounter, 3562 mSDsluCounter, 10907 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3562 SdHoareTripleChecker+Valid, 12253 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:00:35,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3562 Valid, 12253 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:00:37,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444453 states. [2022-09-16 11:00:44,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444453 to 266941. [2022-09-16 11:00:44,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266941 states, 266781 states have (on average 2.90669875290969) internal successors, (775452), 266940 states have internal predecessors, (775452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:46,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266941 states to 266941 states and 775452 transitions. [2022-09-16 11:00:46,516 INFO L78 Accepts]: Start accepts. Automaton has 266941 states and 775452 transitions. Word has length 118 [2022-09-16 11:00:46,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:00:46,516 INFO L495 AbstractCegarLoop]: Abstraction has 266941 states and 775452 transitions. [2022-09-16 11:00:46,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.833333333333334) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:46,516 INFO L276 IsEmpty]: Start isEmpty. Operand 266941 states and 775452 transitions. [2022-09-16 11:00:46,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-09-16 11:00:46,581 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:00:46,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:00:46,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-09-16 11:00:46,582 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 11:00:46,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:00:46,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1166742585, now seen corresponding path program 1 times [2022-09-16 11:00:46,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:00:46,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781868866] [2022-09-16 11:00:46,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:46,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:00:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:46,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:00:46,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:00:46,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781868866] [2022-09-16 11:00:46,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781868866] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:00:46,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:00:46,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-09-16 11:00:46,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142297090] [2022-09-16 11:00:46,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:00:46,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-16 11:00:46,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:00:46,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-16 11:00:46,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-09-16 11:00:46,644 INFO L87 Difference]: Start difference. First operand 266941 states and 775452 transitions. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:51,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:00:51,501 INFO L93 Difference]: Finished difference Result 480109 states and 1382299 transitions. [2022-09-16 11:00:51,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-09-16 11:00:51,502 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 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 120 [2022-09-16 11:00:51,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:00:55,194 INFO L225 Difference]: With dead ends: 480109 [2022-09-16 11:00:55,194 INFO L226 Difference]: Without dead ends: 480109 [2022-09-16 11:00:55,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2022-09-16 11:00:55,195 INFO L413 NwaCegarLoop]: 1079 mSDtfsCounter, 1919 mSDsluCounter, 5835 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1919 SdHoareTripleChecker+Valid, 6863 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:00:55,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1919 Valid, 6863 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:00:56,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480109 states. [2022-09-16 11:01:04,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480109 to 316973. [2022-09-16 11:01:04,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316973 states, 316813 states have (on average 2.908602235388068) internal successors, (921483), 316972 states have internal predecessors, (921483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:06,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316973 states to 316973 states and 921483 transitions. [2022-09-16 11:01:06,876 INFO L78 Accepts]: Start accepts. Automaton has 316973 states and 921483 transitions. Word has length 120 [2022-09-16 11:01:06,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:01:06,877 INFO L495 AbstractCegarLoop]: Abstraction has 316973 states and 921483 transitions. [2022-09-16 11:01:06,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:06,877 INFO L276 IsEmpty]: Start isEmpty. Operand 316973 states and 921483 transitions. [2022-09-16 11:01:07,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-09-16 11:01:07,509 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:01:07,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:01:07,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-09-16 11:01:07,509 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 11:01:07,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:01:07,509 INFO L85 PathProgramCache]: Analyzing trace with hash 932538776, now seen corresponding path program 1 times [2022-09-16 11:01:07,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:01:07,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769518933] [2022-09-16 11:01:07,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:01:07,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:01:07,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:01:07,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:01:07,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:01:07,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769518933] [2022-09-16 11:01:07,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769518933] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:01:07,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:01:07,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:01:07,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199139853] [2022-09-16 11:01:07,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:01:07,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:01:07,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:01:07,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:01:07,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:01:07,539 INFO L87 Difference]: Start difference. First operand 316973 states and 921483 transitions. Second operand has 4 states, 3 states have (on average 40.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:10,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:01:10,533 INFO L93 Difference]: Finished difference Result 387256 states and 1118765 transitions. [2022-09-16 11:01:10,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:01:10,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 40.0) internal successors, (120), 4 states have internal predecessors, (120), 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 120 [2022-09-16 11:01:10,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:01:12,545 INFO L225 Difference]: With dead ends: 387256 [2022-09-16 11:01:12,546 INFO L226 Difference]: Without dead ends: 387256 [2022-09-16 11:01:12,546 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 11:01:12,546 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 388 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:01:12,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1275 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:01:13,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387256 states. [2022-09-16 11:01:20,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387256 to 372273. [2022-09-16 11:01:22,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372273 states, 372113 states have (on average 2.9063295289334152) internal successors, (1081483), 372272 states have internal predecessors, (1081483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:25,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372273 states to 372273 states and 1081483 transitions. [2022-09-16 11:01:25,940 INFO L78 Accepts]: Start accepts. Automaton has 372273 states and 1081483 transitions. Word has length 120 [2022-09-16 11:01:25,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:01:25,940 INFO L495 AbstractCegarLoop]: Abstraction has 372273 states and 1081483 transitions. [2022-09-16 11:01:25,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 40.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:25,940 INFO L276 IsEmpty]: Start isEmpty. Operand 372273 states and 1081483 transitions. [2022-09-16 11:01:26,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-09-16 11:01:26,090 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:01:26,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:01:26,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-09-16 11:01:26,090 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 11:01:26,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:01:26,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1082250546, now seen corresponding path program 1 times [2022-09-16 11:01:26,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:01:26,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084100904] [2022-09-16 11:01:26,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:01:26,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:01:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:01:26,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:01:26,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:01:26,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084100904] [2022-09-16 11:01:26,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084100904] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:01:26,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:01:26,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-09-16 11:01:26,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022992529] [2022-09-16 11:01:26,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:01:26,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-16 11:01:26,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:01:26,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-16 11:01:26,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-09-16 11:01:26,189 INFO L87 Difference]: Start difference. First operand 372273 states and 1081483 transitions. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:33,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:01:33,931 INFO L93 Difference]: Finished difference Result 573419 states and 1649294 transitions. [2022-09-16 11:01:33,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-09-16 11:01:33,932 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 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 121 [2022-09-16 11:01:33,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:01:36,819 INFO L225 Difference]: With dead ends: 573419 [2022-09-16 11:01:36,819 INFO L226 Difference]: Without dead ends: 573419 [2022-09-16 11:01:36,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2022-09-16 11:01:36,820 INFO L413 NwaCegarLoop]: 1079 mSDtfsCounter, 1849 mSDsluCounter, 5819 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1849 SdHoareTripleChecker+Valid, 6847 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:01:36,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1849 Valid, 6847 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:01:37,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573419 states. [2022-09-16 11:01:48,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573419 to 386446. [2022-09-16 11:01:50,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386446 states, 386294 states have (on average 2.8956727259548427) internal successors, (1118581), 386445 states have internal predecessors, (1118581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:54,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386446 states to 386446 states and 1118581 transitions. [2022-09-16 11:01:54,243 INFO L78 Accepts]: Start accepts. Automaton has 386446 states and 1118581 transitions. Word has length 121 [2022-09-16 11:01:54,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:01:54,244 INFO L495 AbstractCegarLoop]: Abstraction has 386446 states and 1118581 transitions. [2022-09-16 11:01:54,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:54,244 INFO L276 IsEmpty]: Start isEmpty. Operand 386446 states and 1118581 transitions. [2022-09-16 11:01:54,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-09-16 11:01:54,484 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:01:54,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:01:54,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-09-16 11:01:54,485 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 11:01:54,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:01:54,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1970522382, now seen corresponding path program 1 times [2022-09-16 11:01:54,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:01:54,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544664001] [2022-09-16 11:01:54,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:01:54,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:01:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:01:54,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:01:54,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:01:54,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544664001] [2022-09-16 11:01:54,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544664001] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:01:54,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:01:54,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-09-16 11:01:54,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829186866] [2022-09-16 11:01:54,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:01:54,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-09-16 11:01:54,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:01:54,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-09-16 11:01:54,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-09-16 11:01:54,593 INFO L87 Difference]: Start difference. First operand 386446 states and 1118581 transitions. Second operand has 13 states, 12 states have (on average 10.25) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:02:02,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:02:02,104 INFO L93 Difference]: Finished difference Result 660316 states and 1896031 transitions. [2022-09-16 11:02:02,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 11:02:02,104 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.25) internal successors, (123), 13 states have internal predecessors, (123), 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 123 [2022-09-16 11:02:02,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:02:07,158 INFO L225 Difference]: With dead ends: 660316 [2022-09-16 11:02:07,159 INFO L226 Difference]: Without dead ends: 660316 [2022-09-16 11:02:07,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2022-09-16 11:02:07,159 INFO L413 NwaCegarLoop]: 1416 mSDtfsCounter, 3470 mSDsluCounter, 10661 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3470 SdHoareTripleChecker+Valid, 11995 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 11:02:07,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3470 Valid, 11995 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 11:02:08,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660316 states. [2022-09-16 11:02:21,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660316 to 387797. [2022-09-16 11:02:22,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387797 states, 387645 states have (on average 2.8954171987256383) internal successors, (1122394), 387796 states have internal predecessors, (1122394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:02:25,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387797 states to 387797 states and 1122394 transitions. [2022-09-16 11:02:25,048 INFO L78 Accepts]: Start accepts. Automaton has 387797 states and 1122394 transitions. Word has length 123 [2022-09-16 11:02:25,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:02:25,048 INFO L495 AbstractCegarLoop]: Abstraction has 387797 states and 1122394 transitions. [2022-09-16 11:02:25,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.25) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:02:25,049 INFO L276 IsEmpty]: Start isEmpty. Operand 387797 states and 1122394 transitions. [2022-09-16 11:02:25,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-09-16 11:02:25,176 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:02:25,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:02:25,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-09-16 11:02:25,177 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2022-09-16 11:02:25,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:02:25,177 INFO L85 PathProgramCache]: Analyzing trace with hash 930167660, now seen corresponding path program 1 times [2022-09-16 11:02:25,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:02:25,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644100689] [2022-09-16 11:02:25,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:02:25,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:02:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:02:25,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:02:25,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:02:25,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644100689] [2022-09-16 11:02:25,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644100689] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:02:25,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:02:25,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-09-16 11:02:25,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266012686] [2022-09-16 11:02:25,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:02:25,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-09-16 11:02:25,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:02:25,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-09-16 11:02:25,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-09-16 11:02:25,770 INFO L87 Difference]: Start difference. First operand 387797 states and 1122394 transitions. Second operand has 13 states, 12 states have (on average 10.333333333333334) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:02:31,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:02:31,785 INFO L93 Difference]: Finished difference Result 648157 states and 1860414 transitions. [2022-09-16 11:02:31,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 11:02:31,785 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.333333333333334) internal successors, (124), 13 states have internal predecessors, (124), 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 124 [2022-09-16 11:02:31,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. Received shutdown request... [2022-09-16 11:02:34,431 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-16 11:02:35,479 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 [2022-09-16 11:02:37,786 INFO L225 Difference]: With dead ends: 648157 [2022-09-16 11:02:37,786 INFO L226 Difference]: Without dead ends: 648157 [2022-09-16 11:02:37,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2022-09-16 11:02:37,787 INFO L413 NwaCegarLoop]: 1413 mSDtfsCounter, 3475 mSDsluCounter, 10640 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3475 SdHoareTripleChecker+Valid, 11971 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:02:37,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3475 Valid, 11971 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] Cannot interrupt operation gracefully because timeout expired. Forcing shutdown [2022-09-16 11:02:39,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648157 states. [2022-09-16 11:02:39,526 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 58 remaining) [2022-09-16 11:02:39,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-09-16 11:02:39,526 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2022-09-16 11:02:39,535 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 58 remaining) [2022-09-16 11:02:39,536 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 58 remaining) [2022-09-16 11:02:39,536 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 58 remaining) [2022-09-16 11:02:39,536 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 58 remaining) [2022-09-16 11:02:39,536 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 58 remaining) [2022-09-16 11:02:39,536 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 58 remaining) [2022-09-16 11:02:39,536 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 58 remaining) [2022-09-16 11:02:39,537 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 58 remaining) [2022-09-16 11:02:39,537 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 58 remaining) [2022-09-16 11:02:39,537 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 58 remaining) [2022-09-16 11:02:39,537 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 58 remaining) [2022-09-16 11:02:39,540 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 58 remaining) [2022-09-16 11:02:39,540 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 58 remaining) [2022-09-16 11:02:39,540 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 58 remaining) [2022-09-16 11:02:39,540 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 58 remaining) [2022-09-16 11:02:39,541 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 58 remaining) [2022-09-16 11:02:39,541 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 58 remaining) [2022-09-16 11:02:39,541 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 58 remaining) [2022-09-16 11:02:39,541 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 58 remaining) [2022-09-16 11:02:39,541 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 58 remaining) [2022-09-16 11:02:39,541 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 58 remaining) [2022-09-16 11:02:39,541 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 58 remaining) [2022-09-16 11:02:39,541 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 58 remaining) [2022-09-16 11:02:39,541 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 58 remaining) [2022-09-16 11:02:39,541 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 58 remaining) [2022-09-16 11:02:39,542 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 58 remaining) [2022-09-16 11:02:39,542 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 58 remaining) [2022-09-16 11:02:39,542 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 58 remaining) [2022-09-16 11:02:39,542 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 58 remaining) [2022-09-16 11:02:39,542 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 58 remaining) [2022-09-16 11:02:39,542 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 58 remaining) [2022-09-16 11:02:39,542 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 58 remaining) [2022-09-16 11:02:39,542 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 58 remaining) [2022-09-16 11:02:39,543 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 58 remaining) [2022-09-16 11:02:39,543 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 58 remaining) [2022-09-16 11:02:39,543 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 58 remaining) [2022-09-16 11:02:39,543 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 58 remaining) [2022-09-16 11:02:39,543 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 58 remaining) [2022-09-16 11:02:39,543 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 58 remaining) [2022-09-16 11:02:39,543 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 58 remaining) [2022-09-16 11:02:39,544 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 58 remaining) [2022-09-16 11:02:39,544 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 58 remaining) [2022-09-16 11:02:39,544 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 58 remaining) [2022-09-16 11:02:39,544 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 58 remaining) [2022-09-16 11:02:39,544 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 58 remaining) [2022-09-16 11:02:39,544 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 58 remaining) [2022-09-16 11:02:39,545 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 58 remaining) [2022-09-16 11:02:39,545 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 58 remaining) [2022-09-16 11:02:39,545 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 58 remaining) [2022-09-16 11:02:39,545 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 58 remaining) [2022-09-16 11:02:39,545 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 58 remaining) [2022-09-16 11:02:39,545 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 58 remaining) [2022-09-16 11:02:39,545 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 58 remaining) [2022-09-16 11:02:39,545 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 58 remaining) [2022-09-16 11:02:39,545 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 58 remaining) [2022-09-16 11:02:39,545 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 58 remaining) [2022-09-16 11:02:39,545 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 58 remaining) [2022-09-16 11:02:39,551 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:02:39,556 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:02:39,556 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:02:39,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:02:39 BasicIcfg [2022-09-16 11:02:39,564 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:02:39,565 INFO L158 Benchmark]: Toolchain (without parser) took 551868.81ms. Allocated memory was 235.9MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 208.8MB in the beginning and 5.8GB in the end (delta: -5.6GB). Peak memory consumption was 4.0GB. Max. memory is 8.0GB. [2022-09-16 11:02:39,566 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 190.8MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:02:39,566 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.27ms. Allocated memory is still 235.9MB. Free memory was 208.3MB in the beginning and 203.5MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-09-16 11:02:39,566 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.19ms. Allocated memory is still 235.9MB. Free memory was 203.5MB in the beginning and 201.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:02:39,566 INFO L158 Benchmark]: Boogie Preprocessor took 27.12ms. Allocated memory is still 235.9MB. Free memory was 201.5MB in the beginning and 199.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 11:02:39,566 INFO L158 Benchmark]: RCFGBuilder took 624.31ms. Allocated memory is still 235.9MB. Free memory was 199.9MB in the beginning and 178.4MB in the end (delta: 21.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-09-16 11:02:39,566 INFO L158 Benchmark]: TraceAbstraction took 550805.96ms. Allocated memory was 235.9MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 177.4MB in the beginning and 5.8GB in the end (delta: -5.6GB). Peak memory consumption was 4.0GB. Max. memory is 8.0GB. [2022-09-16 11:02:39,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 190.8MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 333.27ms. Allocated memory is still 235.9MB. Free memory was 208.3MB in the beginning and 203.5MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.19ms. Allocated memory is still 235.9MB. Free memory was 203.5MB in the beginning and 201.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.12ms. Allocated memory is still 235.9MB. Free memory was 201.5MB in the beginning and 199.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 624.31ms. Allocated memory is still 235.9MB. Free memory was 199.9MB in the beginning and 178.4MB in the end (delta: 21.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 550805.96ms. Allocated memory was 235.9MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 177.4MB in the beginning and 5.8GB in the end (delta: -5.6GB). Peak memory consumption was 4.0GB. 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 - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 44]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 44]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 522 locations, 58 error locations. Started 1 CEGAR loops. OverallTime: 550.6s, OverallIterations: 45, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 2.6s, AutomataDifference: 220.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67764 SdHoareTripleChecker+Valid, 7.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67764 mSDsluCounter, 196632 SdHoareTripleChecker+Invalid, 5.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 159079 mSDsCounter, 418 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8150 IncrementalHoareTripleChecker+Invalid, 8568 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 418 mSolverCounterUnsat, 38934 mSDtfsCounter, 8150 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 601 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 539 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1259 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=387797occurred in iteration=44, InterpolantAutomatonStates: 483, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 321.0s AutomataMinimizationTime, 45 MinimizatonAttempts, 4833012 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 4406 NumberOfCodeBlocks, 4406 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 4361 ConstructedInterpolants, 0 QuantifiedInterpolants, 10581 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 45 InterpolantComputations, 45 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout !SESSION 2022-09-16 10:53:24.226 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.12 java.vendor=Debian BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/fibonacci.wvr.c Command-line arguments: -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/fibonacci.wvr.c !ENTRY org.eclipse.osgi 4 0 2022-09-16 11:02:39.623 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb87b7b77/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb87b7b77/.metadata/.log.