/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/popl20-bad-ring-nondet.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:58:19,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:58:19,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:58:19,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:58:19,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:58:19,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:58:19,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:58:19,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:58:19,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:58:19,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:58:19,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:58:19,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:58:19,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:58:19,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:58:19,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:58:19,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:58:19,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:58:19,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:58:19,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:58:19,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:58:19,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:58:19,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:58:19,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:58:19,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:58:19,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:58:19,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:58:19,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:58:19,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:58:19,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:58:19,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:58:19,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:58:19,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:58:19,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:58:19,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:58:19,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:58:19,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:58:19,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:58:19,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:58:19,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:58:19,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:58:19,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:58:19,776 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 10:58:19,810 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:58:19,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:58:19,810 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:58:19,810 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:58:19,811 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:58:19,811 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:58:19,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:58:19,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:58:19,812 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:58:19,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:58:19,812 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:58:19,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:58:19,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:58:19,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:58:19,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:58:19,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:58:19,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:58:19,813 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:58:19,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:58:19,813 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:58:19,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:58:19,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:58:19,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:58:19,814 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:58:19,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:58:19,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:58:19,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:58:19,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:58:19,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:58:19,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:58:19,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:58:19,815 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:58:19,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:58:19,815 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:58:20,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:58:20,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:58:20,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:58:20,099 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:58:20,101 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:58:20,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.wvr.c [2022-09-16 10:58:20,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca46cebaf/2732cdcfcf6a49af86314a7964d01de6/FLAG7f0f1c2e3 [2022-09-16 10:58:20,621 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:58:20,621 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.wvr.c [2022-09-16 10:58:20,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca46cebaf/2732cdcfcf6a49af86314a7964d01de6/FLAG7f0f1c2e3 [2022-09-16 10:58:20,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca46cebaf/2732cdcfcf6a49af86314a7964d01de6 [2022-09-16 10:58:20,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:58:20,654 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:58:20,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:58:20,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:58:20,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:58:20,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:58:20" (1/1) ... [2022-09-16 10:58:20,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb36126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:58:20, skipping insertion in model container [2022-09-16 10:58:20,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:58:20" (1/1) ... [2022-09-16 10:58:20,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:58:20,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:58:20,876 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/popl20-bad-ring-nondet.wvr.c[4085,4098] [2022-09-16 10:58:20,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:58:20,887 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:58:20,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.wvr.c[4085,4098] [2022-09-16 10:58:20,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:58:20,944 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:58:20,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:58:20 WrapperNode [2022-09-16 10:58:20,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:58:20,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:58:20,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:58:20,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:58:20,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:58:20" (1/1) ... [2022-09-16 10:58:20,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:58:20" (1/1) ... [2022-09-16 10:58:20,999 INFO L138 Inliner]: procedures = 25, calls = 63, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 349 [2022-09-16 10:58:21,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:58:21,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:58:21,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:58:21,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:58:21,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:58:20" (1/1) ... [2022-09-16 10:58:21,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:58:20" (1/1) ... [2022-09-16 10:58:21,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:58:20" (1/1) ... [2022-09-16 10:58:21,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:58:20" (1/1) ... [2022-09-16 10:58:21,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:58:20" (1/1) ... [2022-09-16 10:58:21,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:58:20" (1/1) ... [2022-09-16 10:58:21,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:58:20" (1/1) ... [2022-09-16 10:58:21,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:58:21,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:58:21,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:58:21,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:58:21,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:58:20" (1/1) ... [2022-09-16 10:58:21,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:58:21,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:58:21,070 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 10:58:21,072 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 10:58:21,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:58:21,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:58:21,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:58:21,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:58:21,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 10:58:21,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 10:58:21,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 10:58:21,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 10:58:21,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 10:58:21,100 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 10:58:21,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:58:21,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:58:21,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:58:21,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 10:58:21,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:58:21,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:58:21,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:58:21,102 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 10:58:21,225 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:58:21,227 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:58:21,746 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:58:21,936 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:58:21,936 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-09-16 10:58:21,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:58:21 BoogieIcfgContainer [2022-09-16 10:58:21,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:58:21,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:58:21,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:58:21,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:58:21,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:58:20" (1/3) ... [2022-09-16 10:58:21,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67630c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:58:21, skipping insertion in model container [2022-09-16 10:58:21,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:58:20" (2/3) ... [2022-09-16 10:58:21,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67630c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:58:21, skipping insertion in model container [2022-09-16 10:58:21,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:58:21" (3/3) ... [2022-09-16 10:58:21,949 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-ring-nondet.wvr.c [2022-09-16 10:58:21,958 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:58:21,966 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:58:21,967 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-09-16 10:58:21,968 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:58:22,093 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-16 10:58:22,145 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 305 places, 320 transitions, 664 flow [2022-09-16 10:58:24,213 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 58255 states, 57359 states have (on average 4.037831900835092) internal successors, (231606), 58254 states have internal predecessors, (231606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:58:24,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:58:24,241 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;@1c11e322, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:58:24,241 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2022-09-16 10:58:24,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 58255 states, 57359 states have (on average 4.037831900835092) internal successors, (231606), 58254 states have internal predecessors, (231606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:58:24,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-09-16 10:58:24,482 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:24,483 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] [2022-09-16 10:58:24,500 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 10:58:24,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:24,505 INFO L85 PathProgramCache]: Analyzing trace with hash 377759568, now seen corresponding path program 1 times [2022-09-16 10:58:24,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:24,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335654639] [2022-09-16 10:58:24,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:24,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:24,762 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 10:58:24,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:24,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335654639] [2022-09-16 10:58:24,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335654639] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:58:24,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:58:24,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:58:24,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839570936] [2022-09-16 10:58:24,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:58:24,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:58:24,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:24,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:58:24,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:58:24,934 INFO L87 Difference]: Start difference. First operand has 58255 states, 57359 states have (on average 4.037831900835092) internal successors, (231606), 58254 states have internal predecessors, (231606), 0 states have call successors, (0), 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 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:58:27,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:58:27,275 INFO L93 Difference]: Finished difference Result 89438 states and 333092 transitions. [2022-09-16 10:58:27,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:58:27,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-09-16 10:58:27,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:58:28,331 INFO L225 Difference]: With dead ends: 89438 [2022-09-16 10:58:28,331 INFO L226 Difference]: Without dead ends: 89358 [2022-09-16 10:58:28,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:58:28,336 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 160 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:28,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 663 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:58:28,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89358 states. [2022-09-16 10:58:31,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89358 to 44751. [2022-09-16 10:58:31,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44751 states, 44257 states have (on average 3.7617100119755067) internal successors, (166482), 44750 states have internal predecessors, (166482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:58:31,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44751 states to 44751 states and 166482 transitions. [2022-09-16 10:58:31,579 INFO L78 Accepts]: Start accepts. Automaton has 44751 states and 166482 transitions. Word has length 68 [2022-09-16 10:58:31,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:58:31,580 INFO L495 AbstractCegarLoop]: Abstraction has 44751 states and 166482 transitions. [2022-09-16 10:58:31,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:58:31,580 INFO L276 IsEmpty]: Start isEmpty. Operand 44751 states and 166482 transitions. [2022-09-16 10:58:31,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:58:31,582 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:31,583 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:58:31,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:58:31,584 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 10:58:31,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:31,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1559495874, now seen corresponding path program 1 times [2022-09-16 10:58:31,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:31,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931922175] [2022-09-16 10:58:31,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:31,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:31,709 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:31,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:31,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931922175] [2022-09-16 10:58:31,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931922175] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:58:31,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887931473] [2022-09-16 10:58:31,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:31,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:58:31,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:58:31,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:58:31,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 10:58:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:31,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:58:31,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:58:31,895 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:31,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:58:31,946 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:31,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887931473] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:58:31,947 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:58:31,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 10:58:31,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169619675] [2022-09-16 10:58:31,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:58:31,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 10:58:31,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:31,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 10:58:31,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:58:31,950 INFO L87 Difference]: Start difference. First operand 44751 states and 166482 transitions. Second operand has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 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 10:58:35,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:58:35,589 INFO L93 Difference]: Finished difference Result 223248 states and 831888 transitions. [2022-09-16 10:58:35,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:58:35,591 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 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 77 [2022-09-16 10:58:35,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:58:37,679 INFO L225 Difference]: With dead ends: 223248 [2022-09-16 10:58:37,680 INFO L226 Difference]: Without dead ends: 223248 [2022-09-16 10:58:37,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:58:37,681 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 848 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:37,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 1279 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:58:38,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223248 states. [2022-09-16 10:58:42,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223248 to 44829. [2022-09-16 10:58:42,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44829 states, 44335 states have (on average 3.757189579339123) internal successors, (166575), 44828 states have internal predecessors, (166575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:58:42,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44829 states to 44829 states and 166575 transitions. [2022-09-16 10:58:42,329 INFO L78 Accepts]: Start accepts. Automaton has 44829 states and 166575 transitions. Word has length 77 [2022-09-16 10:58:42,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:58:42,329 INFO L495 AbstractCegarLoop]: Abstraction has 44829 states and 166575 transitions. [2022-09-16 10:58:42,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 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 10:58:42,330 INFO L276 IsEmpty]: Start isEmpty. Operand 44829 states and 166575 transitions. [2022-09-16 10:58:42,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-09-16 10:58:42,332 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:42,332 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:58:42,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 10:58:42,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:58:42,540 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 10:58:42,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:42,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1099730840, now seen corresponding path program 1 times [2022-09-16 10:58:42,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:42,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848321212] [2022-09-16 10:58:42,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:42,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:42,652 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:42,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:42,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848321212] [2022-09-16 10:58:42,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848321212] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:58:42,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62024871] [2022-09-16 10:58:42,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:42,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:58:42,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:58:42,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:58:42,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 10:58:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:42,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:58:42,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:58:43,281 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:43,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:58:43,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62024871] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:58:43,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:58:43,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:58:43,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476847065] [2022-09-16 10:58:43,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:58:43,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:58:43,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:43,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:58:43,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:58:43,284 INFO L87 Difference]: Start difference. First operand 44829 states and 166575 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 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 10:58:44,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:58:44,627 INFO L93 Difference]: Finished difference Result 89427 states and 332892 transitions. [2022-09-16 10:58:44,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:58:44,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 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 10:58:44,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:58:45,415 INFO L225 Difference]: With dead ends: 89427 [2022-09-16 10:58:45,415 INFO L226 Difference]: Without dead ends: 89427 [2022-09-16 10:58:45,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:58:45,416 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 329 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:45,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 1165 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:58:45,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89427 states. [2022-09-16 10:58:47,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89427 to 44826. [2022-09-16 10:58:47,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44826 states, 44335 states have (on average 3.7569865794519) internal successors, (166566), 44825 states have internal predecessors, (166566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:58:48,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44826 states to 44826 states and 166566 transitions. [2022-09-16 10:58:48,051 INFO L78 Accepts]: Start accepts. Automaton has 44826 states and 166566 transitions. Word has length 78 [2022-09-16 10:58:48,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:58:48,051 INFO L495 AbstractCegarLoop]: Abstraction has 44826 states and 166566 transitions. [2022-09-16 10:58:48,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 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 10:58:48,052 INFO L276 IsEmpty]: Start isEmpty. Operand 44826 states and 166566 transitions. [2022-09-16 10:58:48,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-09-16 10:58:48,053 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:48,053 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:58:48,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 10:58:48,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-09-16 10:58:48,254 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 10:58:48,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:48,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1591095600, now seen corresponding path program 2 times [2022-09-16 10:58:48,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:48,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814338940] [2022-09-16 10:58:48,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:48,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:48,403 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:48,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:48,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814338940] [2022-09-16 10:58:48,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814338940] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:58:48,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145444311] [2022-09-16 10:58:48,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:58:48,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:58:48,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:58:48,408 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:58:48,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 10:58:48,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:58:48,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:58:48,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 10:58:48,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:58:48,674 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 10:58:48,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:58:48,815 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 10:58:48,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145444311] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:58:48,815 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:58:48,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-09-16 10:58:48,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339406402] [2022-09-16 10:58:48,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:58:48,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 10:58:48,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:48,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 10:58:48,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-09-16 10:58:48,817 INFO L87 Difference]: Start difference. First operand 44826 states and 166566 transitions. Second operand has 18 states, 17 states have (on average 8.764705882352942) internal successors, (149), 18 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:58:53,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:58:53,521 INFO L93 Difference]: Finished difference Result 285856 states and 1065502 transitions. [2022-09-16 10:58:53,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-09-16 10:58:53,522 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 8.764705882352942) internal successors, (149), 18 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-09-16 10:58:53,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:58:56,562 INFO L225 Difference]: With dead ends: 285856 [2022-09-16 10:58:56,562 INFO L226 Difference]: Without dead ends: 285604 [2022-09-16 10:58:56,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 197 SyntacticMatches, 5 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=991, Invalid=3041, Unknown=0, NotChecked=0, Total=4032 [2022-09-16 10:58:56,568 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 3526 mSDsluCounter, 2712 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3526 SdHoareTripleChecker+Valid, 2607 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:56,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3526 Valid, 2607 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:58:57,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285604 states. [2022-09-16 10:59:01,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285604 to 40988. [2022-09-16 10:59:01,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40988 states, 40610 states have (on average 3.749790691947796) internal successors, (152279), 40987 states have internal predecessors, (152279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:02,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40988 states to 40988 states and 152279 transitions. [2022-09-16 10:59:02,123 INFO L78 Accepts]: Start accepts. Automaton has 40988 states and 152279 transitions. Word has length 104 [2022-09-16 10:59:02,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:59:02,124 INFO L495 AbstractCegarLoop]: Abstraction has 40988 states and 152279 transitions. [2022-09-16 10:59:02,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 8.764705882352942) internal successors, (149), 18 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:02,124 INFO L276 IsEmpty]: Start isEmpty. Operand 40988 states and 152279 transitions. [2022-09-16 10:59:02,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-09-16 10:59:02,127 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:59:02,127 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:02,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 10:59:02,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:59:02,354 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 10:59:02,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:59:02,355 INFO L85 PathProgramCache]: Analyzing trace with hash 96278973, now seen corresponding path program 1 times [2022-09-16 10:59:02,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:59:02,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633892757] [2022-09-16 10:59:02,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:02,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:59:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:02,604 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:59:02,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:59:02,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633892757] [2022-09-16 10:59:02,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633892757] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:59:02,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121966964] [2022-09-16 10:59:02,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:02,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:59:02,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:59:02,608 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:59:02,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 10:59:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:02,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 15 conjunts are in the unsatisfiable core [2022-09-16 10:59:02,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:59:02,813 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:59:02,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:59:03,069 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:59:03,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121966964] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:59:03,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:59:03,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2022-09-16 10:59:03,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992046530] [2022-09-16 10:59:03,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:59:03,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-09-16 10:59:03,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:59:03,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-09-16 10:59:03,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2022-09-16 10:59:03,071 INFO L87 Difference]: Start difference. First operand 40988 states and 152279 transitions. Second operand has 32 states, 31 states have (on average 7.064516129032258) internal successors, (219), 32 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:12,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:59:12,521 INFO L93 Difference]: Finished difference Result 611915 states and 2281100 transitions. [2022-09-16 10:59:12,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-09-16 10:59:12,522 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 7.064516129032258) internal successors, (219), 32 states have internal predecessors, (219), 0 states have call successors, (0), 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 149 [2022-09-16 10:59:12,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:20,739 INFO L225 Difference]: With dead ends: 611915 [2022-09-16 10:59:20,740 INFO L226 Difference]: Without dead ends: 611915 [2022-09-16 10:59:20,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1084, Invalid=2338, Unknown=0, NotChecked=0, Total=3422 [2022-09-16 10:59:20,742 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 4930 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4930 SdHoareTripleChecker+Valid, 2507 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:20,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4930 Valid, 2507 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:59:22,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611915 states. [2022-09-16 10:59:34,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611915 to 41132. [2022-09-16 10:59:34,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41132 states, 40754 states have (on average 3.7404671934043283) internal successors, (152439), 41131 states have internal predecessors, (152439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:35,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41132 states to 41132 states and 152439 transitions. [2022-09-16 10:59:35,747 INFO L78 Accepts]: Start accepts. Automaton has 41132 states and 152439 transitions. Word has length 149 [2022-09-16 10:59:35,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:59:35,748 INFO L495 AbstractCegarLoop]: Abstraction has 41132 states and 152439 transitions. [2022-09-16 10:59:35,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 7.064516129032258) internal successors, (219), 32 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:35,748 INFO L276 IsEmpty]: Start isEmpty. Operand 41132 states and 152439 transitions. [2022-09-16 10:59:35,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-09-16 10:59:35,754 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:59:35,754 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, 1, 1, 1, 1, 1, 1, 1, 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 10:59:35,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-16 10:59:35,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:59:35,956 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 10:59:35,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:59:35,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1963570520, now seen corresponding path program 1 times [2022-09-16 10:59:35,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:59:35,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000863158] [2022-09-16 10:59:35,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:35,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:59:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:36,061 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 10:59:36,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:59:36,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000863158] [2022-09-16 10:59:36,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000863158] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:59:36,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:59:36,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:59:36,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603456301] [2022-09-16 10:59:36,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:59:36,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:59:36,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:59:36,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:59:36,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:59:36,063 INFO L87 Difference]: Start difference. First operand 41132 states and 152439 transitions. Second operand has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:36,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:59:36,562 INFO L93 Difference]: Finished difference Result 44858 states and 163825 transitions. [2022-09-16 10:59:36,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 10:59:36,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2022-09-16 10:59:36,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:36,788 INFO L225 Difference]: With dead ends: 44858 [2022-09-16 10:59:36,788 INFO L226 Difference]: Without dead ends: 44218 [2022-09-16 10:59:36,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:59:36,789 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 158 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:36,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 1008 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:59:37,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44218 states. [2022-09-16 10:59:38,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44218 to 44217. [2022-09-16 10:59:38,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44217 states, 43832 states have (on average 3.693009673298047) internal successors, (161872), 44216 states have internal predecessors, (161872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:38,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44217 states to 44217 states and 161872 transitions. [2022-09-16 10:59:38,839 INFO L78 Accepts]: Start accepts. Automaton has 44217 states and 161872 transitions. Word has length 155 [2022-09-16 10:59:38,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:59:38,839 INFO L495 AbstractCegarLoop]: Abstraction has 44217 states and 161872 transitions. [2022-09-16 10:59:38,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:38,839 INFO L276 IsEmpty]: Start isEmpty. Operand 44217 states and 161872 transitions. [2022-09-16 10:59:38,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-09-16 10:59:38,842 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:59:38,842 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:38,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:59:38,843 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 10:59:38,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:59:38,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1697112783, now seen corresponding path program 1 times [2022-09-16 10:59:38,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:59:38,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278071211] [2022-09-16 10:59:38,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:38,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:59:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:38,965 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 10:59:38,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:59:38,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278071211] [2022-09-16 10:59:38,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278071211] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:59:38,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:59:38,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-16 10:59:38,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500756670] [2022-09-16 10:59:38,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:59:38,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-16 10:59:38,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:59:38,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-16 10:59:38,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:59:38,967 INFO L87 Difference]: Start difference. First operand 44217 states and 161872 transitions. Second operand has 9 states, 8 states have (on average 19.875) internal successors, (159), 9 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:39,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:59:39,925 INFO L93 Difference]: Finished difference Result 58387 states and 208685 transitions. [2022-09-16 10:59:39,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 10:59:39,926 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 19.875) internal successors, (159), 9 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2022-09-16 10:59:39,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:40,163 INFO L225 Difference]: With dead ends: 58387 [2022-09-16 10:59:40,164 INFO L226 Difference]: Without dead ends: 58195 [2022-09-16 10:59:40,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-09-16 10:59:40,165 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 462 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:40,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1747 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:59:40,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58195 states. [2022-09-16 10:59:41,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58195 to 54762. [2022-09-16 10:59:41,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54762 states, 54317 states have (on average 3.626452123644531) internal successors, (196978), 54761 states have internal predecessors, (196978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:42,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54762 states to 54762 states and 196978 transitions. [2022-09-16 10:59:42,160 INFO L78 Accepts]: Start accepts. Automaton has 54762 states and 196978 transitions. Word has length 159 [2022-09-16 10:59:42,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:59:42,161 INFO L495 AbstractCegarLoop]: Abstraction has 54762 states and 196978 transitions. [2022-09-16 10:59:42,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 19.875) internal successors, (159), 9 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:42,162 INFO L276 IsEmpty]: Start isEmpty. Operand 54762 states and 196978 transitions. [2022-09-16 10:59:42,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-09-16 10:59:42,164 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:59:42,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:42,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:59:42,165 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 10:59:42,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:59:42,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1697112784, now seen corresponding path program 1 times [2022-09-16 10:59:42,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:59:42,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246998080] [2022-09-16 10:59:42,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:42,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:59:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:42,221 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 10:59:42,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:59:42,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246998080] [2022-09-16 10:59:42,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246998080] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:59:42,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:59:42,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:59:42,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769864694] [2022-09-16 10:59:42,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:59:42,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:59:42,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:59:42,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:59:42,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:59:42,223 INFO L87 Difference]: Start difference. First operand 54762 states and 196978 transitions. Second operand has 5 states, 4 states have (on average 39.75) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:43,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:59:43,161 INFO L93 Difference]: Finished difference Result 53314 states and 191398 transitions. [2022-09-16 10:59:43,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:59:43,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 39.75) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2022-09-16 10:59:43,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:43,463 INFO L225 Difference]: With dead ends: 53314 [2022-09-16 10:59:43,464 INFO L226 Difference]: Without dead ends: 53314 [2022-09-16 10:59:43,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:59:43,465 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 448 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:43,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 482 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:59:43,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53314 states. [2022-09-16 10:59:45,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53314 to 53314. [2022-09-16 10:59:45,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53314 states, 52920 states have (on average 3.6167422524565382) internal successors, (191398), 53313 states have internal predecessors, (191398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:45,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53314 states to 53314 states and 191398 transitions. [2022-09-16 10:59:45,361 INFO L78 Accepts]: Start accepts. Automaton has 53314 states and 191398 transitions. Word has length 159 [2022-09-16 10:59:45,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:59:45,361 INFO L495 AbstractCegarLoop]: Abstraction has 53314 states and 191398 transitions. [2022-09-16 10:59:45,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 39.75) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:45,361 INFO L276 IsEmpty]: Start isEmpty. Operand 53314 states and 191398 transitions. [2022-09-16 10:59:45,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-09-16 10:59:45,364 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:59:45,364 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:45,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 10:59:45,365 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 10:59:45,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:59:45,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1697112785, now seen corresponding path program 1 times [2022-09-16 10:59:45,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:59:45,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322416104] [2022-09-16 10:59:45,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:45,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:59:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:45,431 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 10:59:45,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:59:45,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322416104] [2022-09-16 10:59:45,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322416104] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:59:45,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:59:45,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:59:45,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367010268] [2022-09-16 10:59:45,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:59:45,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:59:45,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:59:45,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:59:45,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:59:45,435 INFO L87 Difference]: Start difference. First operand 53314 states and 191398 transitions. Second operand has 3 states, 2 states have (on average 79.5) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:46,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:59:46,647 INFO L93 Difference]: Finished difference Result 96198 states and 348370 transitions. [2022-09-16 10:59:46,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:59:46,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 79.5) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2022-09-16 10:59:46,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:47,607 INFO L225 Difference]: With dead ends: 96198 [2022-09-16 10:59:47,608 INFO L226 Difference]: Without dead ends: 96198 [2022-09-16 10:59:47,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:59:47,609 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 70 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:47,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 500 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:59:47,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96198 states. [2022-09-16 10:59:49,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96198 to 81214. [2022-09-16 10:59:50,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81214 states, 80820 states have (on average 3.772308834446919) internal successors, (304878), 81213 states have internal predecessors, (304878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:50,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81214 states to 81214 states and 304878 transitions. [2022-09-16 10:59:50,817 INFO L78 Accepts]: Start accepts. Automaton has 81214 states and 304878 transitions. Word has length 159 [2022-09-16 10:59:50,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:59:50,818 INFO L495 AbstractCegarLoop]: Abstraction has 81214 states and 304878 transitions. [2022-09-16 10:59:50,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 79.5) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:50,818 INFO L276 IsEmpty]: Start isEmpty. Operand 81214 states and 304878 transitions. [2022-09-16 10:59:50,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-09-16 10:59:50,821 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:59:50,821 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:50,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 10:59:50,821 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 10:59:50,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:59:50,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1070920716, now seen corresponding path program 1 times [2022-09-16 10:59:50,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:59:50,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281306255] [2022-09-16 10:59:50,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:50,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:59:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:50,900 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 10:59:50,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:59:50,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281306255] [2022-09-16 10:59:50,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281306255] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:59:50,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:59:50,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:59:50,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371080529] [2022-09-16 10:59:50,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:59:50,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:59:50,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:59:50,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:59:50,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:59:50,902 INFO L87 Difference]: Start difference. First operand 81214 states and 304878 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:53,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:59:53,087 INFO L93 Difference]: Finished difference Result 162674 states and 610924 transitions. [2022-09-16 10:59:53,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:59:53,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2022-09-16 10:59:53,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:55,282 INFO L225 Difference]: With dead ends: 162674 [2022-09-16 10:59:55,282 INFO L226 Difference]: Without dead ends: 162674 [2022-09-16 10:59:55,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:59:55,283 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 188 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:55,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 765 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:59:55,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162674 states. [2022-09-16 11:00:00,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162674 to 107614. [2022-09-16 11:00:00,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107614 states, 107226 states have (on average 3.820127580997146) internal successors, (409617), 107613 states have internal predecessors, (409617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:01,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107614 states to 107614 states and 409617 transitions. [2022-09-16 11:00:01,505 INFO L78 Accepts]: Start accepts. Automaton has 107614 states and 409617 transitions. Word has length 160 [2022-09-16 11:00:01,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:00:01,505 INFO L495 AbstractCegarLoop]: Abstraction has 107614 states and 409617 transitions. [2022-09-16 11:00:01,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:01,505 INFO L276 IsEmpty]: Start isEmpty. Operand 107614 states and 409617 transitions. [2022-09-16 11:00:01,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-09-16 11:00:01,513 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:00:01,513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:00:01,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-16 11:00:01,514 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:00:01,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:00:01,514 INFO L85 PathProgramCache]: Analyzing trace with hash -230327775, now seen corresponding path program 1 times [2022-09-16 11:00:01,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:00:01,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637209046] [2022-09-16 11:00:01,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:01,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:00:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:01,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:00:01,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:00:01,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637209046] [2022-09-16 11:00:01,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637209046] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:00:01,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998271401] [2022-09-16 11:00:01,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:01,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:00:01,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:00:01,665 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:00:01,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-16 11:00:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:01,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 9 conjunts are in the unsatisfiable core [2022-09-16 11:00:01,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:00:02,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:00:02,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:00:02,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998271401] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:00:02,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:00:02,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 15 [2022-09-16 11:00:02,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212825682] [2022-09-16 11:00:02,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:00:02,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 11:00:02,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:00:02,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 11:00:02,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-09-16 11:00:02,079 INFO L87 Difference]: Start difference. First operand 107614 states and 409617 transitions. Second operand has 7 states, 6 states have (on average 28.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:04,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:00:04,271 INFO L93 Difference]: Finished difference Result 138674 states and 525915 transitions. [2022-09-16 11:00:04,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-16 11:00:04,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 28.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2022-09-16 11:00:04,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:00:05,207 INFO L225 Difference]: With dead ends: 138674 [2022-09-16 11:00:05,207 INFO L226 Difference]: Without dead ends: 138674 [2022-09-16 11:00:05,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2022-09-16 11:00:05,208 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 500 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:00:05,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 1357 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:00:05,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138674 states. [2022-09-16 11:00:09,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138674 to 106166. [2022-09-16 11:00:09,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106166 states, 105821 states have (on average 3.7983859536386917) internal successors, (401949), 106165 states have internal predecessors, (401949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:10,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106166 states to 106166 states and 401949 transitions. [2022-09-16 11:00:10,327 INFO L78 Accepts]: Start accepts. Automaton has 106166 states and 401949 transitions. Word has length 168 [2022-09-16 11:00:10,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:00:10,327 INFO L495 AbstractCegarLoop]: Abstraction has 106166 states and 401949 transitions. [2022-09-16 11:00:10,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 28.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:10,327 INFO L276 IsEmpty]: Start isEmpty. Operand 106166 states and 401949 transitions. [2022-09-16 11:00:10,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-09-16 11:00:10,335 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:00:10,336 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:00:10,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-09-16 11:00:10,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-09-16 11:00:10,552 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:00:10,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:00:10,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1807602305, now seen corresponding path program 1 times [2022-09-16 11:00:10,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:00:10,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895697630] [2022-09-16 11:00:10,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:10,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:00:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:10,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:00:10,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:00:10,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895697630] [2022-09-16 11:00:10,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895697630] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:00:10,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:00:10,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:00:10,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469555089] [2022-09-16 11:00:10,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:00:10,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:00:10,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:00:10,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:00:10,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:00:10,644 INFO L87 Difference]: Start difference. First operand 106166 states and 401949 transitions. Second operand has 3 states, 2 states have (on average 84.5) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:11,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:00:11,817 INFO L93 Difference]: Finished difference Result 88970 states and 333531 transitions. [2022-09-16 11:00:11,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:00:11,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 84.5) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2022-09-16 11:00:11,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:00:12,731 INFO L225 Difference]: With dead ends: 88970 [2022-09-16 11:00:12,731 INFO L226 Difference]: Without dead ends: 88782 [2022-09-16 11:00:12,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:00:12,732 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 58 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:00:12,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 426 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:00:12,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88782 states. [2022-09-16 11:00:15,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88782 to 85495. [2022-09-16 11:00:15,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85495 states, 85185 states have (on average 3.791089980630393) internal successors, (322944), 85494 states have internal predecessors, (322944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:16,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85495 states to 85495 states and 322944 transitions. [2022-09-16 11:00:16,012 INFO L78 Accepts]: Start accepts. Automaton has 85495 states and 322944 transitions. Word has length 169 [2022-09-16 11:00:16,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:00:16,013 INFO L495 AbstractCegarLoop]: Abstraction has 85495 states and 322944 transitions. [2022-09-16 11:00:16,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 84.5) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:16,013 INFO L276 IsEmpty]: Start isEmpty. Operand 85495 states and 322944 transitions. [2022-09-16 11:00:16,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-09-16 11:00:16,020 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:00:16,021 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:00:16,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-09-16 11:00:16,021 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:00:16,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:00:16,022 INFO L85 PathProgramCache]: Analyzing trace with hash -603200383, now seen corresponding path program 1 times [2022-09-16 11:00:16,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:00:16,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166511620] [2022-09-16 11:00:16,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:16,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:00:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:16,089 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:00:16,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:00:16,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166511620] [2022-09-16 11:00:16,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166511620] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:00:16,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900874888] [2022-09-16 11:00:16,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:16,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:00:16,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:00:16,091 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:00:16,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 11:00:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:16,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 11:00:16,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:00:16,251 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:00:16,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:00:16,291 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:00:16,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900874888] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:00:16,292 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:00:16,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-09-16 11:00:16,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719989962] [2022-09-16 11:00:16,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:00:16,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 11:00:16,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:00:16,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 11:00:16,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-09-16 11:00:16,294 INFO L87 Difference]: Start difference. First operand 85495 states and 322944 transitions. Second operand has 7 states, 6 states have (on average 35.5) internal successors, (213), 7 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:19,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:00:19,383 INFO L93 Difference]: Finished difference Result 224675 states and 841486 transitions. [2022-09-16 11:00:19,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:00:19,384 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 35.5) internal successors, (213), 7 states have internal predecessors, (213), 0 states have call successors, (0), 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 171 [2022-09-16 11:00:19,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:00:21,055 INFO L225 Difference]: With dead ends: 224675 [2022-09-16 11:00:21,056 INFO L226 Difference]: Without dead ends: 224675 [2022-09-16 11:00:21,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-09-16 11:00:21,056 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 470 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:00:21,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 978 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:00:21,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224675 states. [2022-09-16 11:00:28,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224675 to 183139. [2022-09-16 11:00:28,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183139 states, 182829 states have (on average 3.9038773936301134) internal successors, (713742), 183138 states have internal predecessors, (713742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:31,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183139 states to 183139 states and 713742 transitions. [2022-09-16 11:00:31,397 INFO L78 Accepts]: Start accepts. Automaton has 183139 states and 713742 transitions. Word has length 171 [2022-09-16 11:00:31,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:00:31,398 INFO L495 AbstractCegarLoop]: Abstraction has 183139 states and 713742 transitions. [2022-09-16 11:00:31,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 35.5) internal successors, (213), 7 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:31,398 INFO L276 IsEmpty]: Start isEmpty. Operand 183139 states and 713742 transitions. [2022-09-16 11:00:31,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-09-16 11:00:31,421 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:00:31,422 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:00:31,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-16 11:00:31,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:00:31,636 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:00:31,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:00:31,636 INFO L85 PathProgramCache]: Analyzing trace with hash -603200382, now seen corresponding path program 1 times [2022-09-16 11:00:31,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:00:31,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002905816] [2022-09-16 11:00:31,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:31,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:00:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:31,738 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:00:31,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:00:31,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002905816] [2022-09-16 11:00:31,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002905816] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:00:31,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079159797] [2022-09-16 11:00:31,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:31,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:00:31,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:00:31,740 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:00:31,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 11:00:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:31,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 11:00:31,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:00:31,915 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:00:31,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:00:31,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079159797] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:00:31,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:00:31,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-09-16 11:00:31,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867668022] [2022-09-16 11:00:31,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:00:31,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:00:31,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:00:31,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:00:31,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:00:31,917 INFO L87 Difference]: Start difference. First operand 183139 states and 713742 transitions. Second operand has 4 states, 3 states have (on average 57.0) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:35,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:00:35,438 INFO L93 Difference]: Finished difference Result 191961 states and 733742 transitions. [2022-09-16 11:00:35,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:00:35,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 57.0) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-09-16 11:00:35,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:00:37,803 INFO L225 Difference]: With dead ends: 191961 [2022-09-16 11:00:37,803 INFO L226 Difference]: Without dead ends: 191961 [2022-09-16 11:00:37,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 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 11:00:37,804 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 140 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:00:37,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 597 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:00:38,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191961 states. [2022-09-16 11:00:44,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191961 to 181577. [2022-09-16 11:00:44,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181577 states, 181314 states have (on average 3.8706663578102076) internal successors, (701806), 181576 states have internal predecessors, (701806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:46,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181577 states to 181577 states and 701806 transitions. [2022-09-16 11:00:46,167 INFO L78 Accepts]: Start accepts. Automaton has 181577 states and 701806 transitions. Word has length 171 [2022-09-16 11:00:46,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:00:46,168 INFO L495 AbstractCegarLoop]: Abstraction has 181577 states and 701806 transitions. [2022-09-16 11:00:46,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 57.0) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:46,168 INFO L276 IsEmpty]: Start isEmpty. Operand 181577 states and 701806 transitions. [2022-09-16 11:00:46,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-09-16 11:00:46,176 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:00:46,176 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:00:46,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-16 11:00:46,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:00:46,377 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:00:46,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:00:46,379 INFO L85 PathProgramCache]: Analyzing trace with hash 726120415, now seen corresponding path program 1 times [2022-09-16 11:00:46,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:00:46,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572535825] [2022-09-16 11:00:46,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:46,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:00:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:46,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:00:46,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:00:46,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572535825] [2022-09-16 11:00:46,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572535825] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:00:46,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:00:46,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:00:46,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124942140] [2022-09-16 11:00:46,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:00:46,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:00:46,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:00:46,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:00:46,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:00:46,482 INFO L87 Difference]: Start difference. First operand 181577 states and 701806 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:48,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:00:48,485 INFO L93 Difference]: Finished difference Result 148065 states and 567621 transitions. [2022-09-16 11:00:48,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:00:48,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2022-09-16 11:00:48,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:00:49,948 INFO L225 Difference]: With dead ends: 148065 [2022-09-16 11:00:49,948 INFO L226 Difference]: Without dead ends: 147971 [2022-09-16 11:00:49,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:00:49,949 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 50 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:00:49,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 426 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:00:50,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147971 states. [2022-09-16 11:00:54,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147971 to 147971. [2022-09-16 11:00:55,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147971 states, 147708 states have (on average 3.8409226311371083) internal successors, (567335), 147970 states have internal predecessors, (567335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:57,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147971 states to 147971 states and 567335 transitions. [2022-09-16 11:00:57,569 INFO L78 Accepts]: Start accepts. Automaton has 147971 states and 567335 transitions. Word has length 173 [2022-09-16 11:00:57,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:00:57,570 INFO L495 AbstractCegarLoop]: Abstraction has 147971 states and 567335 transitions. [2022-09-16 11:00:57,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:57,570 INFO L276 IsEmpty]: Start isEmpty. Operand 147971 states and 567335 transitions. [2022-09-16 11:00:57,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-09-16 11:00:57,582 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:00:57,582 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:00:57,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-09-16 11:00:57,582 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:00:57,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:00:57,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1158599382, now seen corresponding path program 1 times [2022-09-16 11:00:57,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:00:57,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535455620] [2022-09-16 11:00:57,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:57,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:00:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:58,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:00:58,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:00:58,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535455620] [2022-09-16 11:00:58,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535455620] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:00:58,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:00:58,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-16 11:00:58,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54693522] [2022-09-16 11:00:58,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:00:58,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 11:00:58,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:00:58,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 11:00:58,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-09-16 11:00:58,016 INFO L87 Difference]: Start difference. First operand 147971 states and 567335 transitions. Second operand has 12 states, 11 states have (on average 16.181818181818183) internal successors, (178), 12 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:00,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:01:00,746 INFO L93 Difference]: Finished difference Result 150959 states and 576647 transitions. [2022-09-16 11:01:00,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-16 11:01:00,747 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 16.181818181818183) internal successors, (178), 12 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2022-09-16 11:01:00,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:01:02,282 INFO L225 Difference]: With dead ends: 150959 [2022-09-16 11:01:02,283 INFO L226 Difference]: Without dead ends: 150869 [2022-09-16 11:01:02,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2022-09-16 11:01:02,285 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 857 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 11:01:02,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 1910 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 11:01:02,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150869 states. [2022-09-16 11:01:07,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150869 to 149441. [2022-09-16 11:01:07,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149441 states, 149178 states have (on average 3.8385753931544864) internal successors, (572631), 149440 states have internal predecessors, (572631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:08,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149441 states to 149441 states and 572631 transitions. [2022-09-16 11:01:08,859 INFO L78 Accepts]: Start accepts. Automaton has 149441 states and 572631 transitions. Word has length 178 [2022-09-16 11:01:08,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:01:08,859 INFO L495 AbstractCegarLoop]: Abstraction has 149441 states and 572631 transitions. [2022-09-16 11:01:08,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 16.181818181818183) internal successors, (178), 12 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:08,859 INFO L276 IsEmpty]: Start isEmpty. Operand 149441 states and 572631 transitions. [2022-09-16 11:01:08,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-09-16 11:01:08,871 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:01:08,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:08,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-09-16 11:01:08,871 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:01:08,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:01:08,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1158599381, now seen corresponding path program 1 times [2022-09-16 11:01:08,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:01:08,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64854875] [2022-09-16 11:01:08,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:01:08,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:01:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:01:08,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:01:08,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:01:08,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64854875] [2022-09-16 11:01:08,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64854875] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:01:08,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099233981] [2022-09-16 11:01:08,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:01:08,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:01:08,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:01:08,991 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:01:08,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-16 11:01:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:01:09,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-16 11:01:09,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:01:09,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:01:09,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:01:09,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099233981] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:01:09,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:01:09,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-09-16 11:01:09,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311130231] [2022-09-16 11:01:09,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:01:09,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:01:09,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:01:09,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:01:09,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-09-16 11:01:09,323 INFO L87 Difference]: Start difference. First operand 149441 states and 572631 transitions. Second operand has 4 states, 3 states have (on average 59.333333333333336) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:11,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:01:11,194 INFO L93 Difference]: Finished difference Result 132134 states and 503850 transitions. [2022-09-16 11:01:11,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:01:11,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 59.333333333333336) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2022-09-16 11:01:11,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:01:12,099 INFO L225 Difference]: With dead ends: 132134 [2022-09-16 11:01:12,099 INFO L226 Difference]: Without dead ends: 132134 [2022-09-16 11:01:12,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:01:12,102 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 94 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:01:12,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 483 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:01:12,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132134 states. [2022-09-16 11:01:16,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132134 to 132134. [2022-09-16 11:01:16,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132134 states, 131946 states have (on average 3.818607612204993) internal successors, (503850), 132133 states have internal predecessors, (503850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:18,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132134 states to 132134 states and 503850 transitions. [2022-09-16 11:01:18,259 INFO L78 Accepts]: Start accepts. Automaton has 132134 states and 503850 transitions. Word has length 178 [2022-09-16 11:01:18,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:01:18,260 INFO L495 AbstractCegarLoop]: Abstraction has 132134 states and 503850 transitions. [2022-09-16 11:01:18,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 59.333333333333336) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:18,260 INFO L276 IsEmpty]: Start isEmpty. Operand 132134 states and 503850 transitions. [2022-09-16 11:01:18,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-09-16 11:01:18,279 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:01:18,279 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:18,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-09-16 11:01:18,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-09-16 11:01:18,506 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:01:18,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:01:18,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1556841273, now seen corresponding path program 1 times [2022-09-16 11:01:18,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:01:18,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736072956] [2022-09-16 11:01:18,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:01:18,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:01:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:01:18,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:01:18,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:01:18,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736072956] [2022-09-16 11:01:18,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736072956] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:01:18,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:01:18,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-09-16 11:01:18,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384397799] [2022-09-16 11:01:18,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:01:18,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-09-16 11:01:18,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:01:18,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-09-16 11:01:18,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-09-16 11:01:18,800 INFO L87 Difference]: Start difference. First operand 132134 states and 503850 transitions. Second operand has 13 states, 12 states have (on average 14.916666666666666) internal successors, (179), 13 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:21,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:01:21,762 INFO L93 Difference]: Finished difference Result 134174 states and 510129 transitions. [2022-09-16 11:01:21,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:01:21,775 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 14.916666666666666) internal successors, (179), 13 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2022-09-16 11:01:21,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:01:23,163 INFO L225 Difference]: With dead ends: 134174 [2022-09-16 11:01:23,164 INFO L226 Difference]: Without dead ends: 134084 [2022-09-16 11:01:23,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=161, Invalid=595, Unknown=0, NotChecked=0, Total=756 [2022-09-16 11:01:23,177 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 869 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 11:01:23,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 1997 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 11:01:23,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134084 states. [2022-09-16 11:01:27,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134084 to 132902. [2022-09-16 11:01:27,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132902 states, 132714 states have (on average 3.8148047681480475) internal successors, (506278), 132901 states have internal predecessors, (506278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:29,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132902 states to 132902 states and 506278 transitions. [2022-09-16 11:01:29,073 INFO L78 Accepts]: Start accepts. Automaton has 132902 states and 506278 transitions. Word has length 179 [2022-09-16 11:01:29,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:01:29,073 INFO L495 AbstractCegarLoop]: Abstraction has 132902 states and 506278 transitions. [2022-09-16 11:01:29,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 14.916666666666666) internal successors, (179), 13 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:29,073 INFO L276 IsEmpty]: Start isEmpty. Operand 132902 states and 506278 transitions. [2022-09-16 11:01:29,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-09-16 11:01:29,085 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:01:29,085 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:29,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-09-16 11:01:29,085 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:01:29,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:01:29,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1816322435, now seen corresponding path program 2 times [2022-09-16 11:01:29,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:01:29,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326175492] [2022-09-16 11:01:29,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:01:29,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:01:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:01:29,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:01:29,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:01:29,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326175492] [2022-09-16 11:01:29,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326175492] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:01:29,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:01:29,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:01:29,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122453885] [2022-09-16 11:01:29,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:01:29,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:01:29,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:01:29,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:01:29,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:01:29,180 INFO L87 Difference]: Start difference. First operand 132902 states and 506278 transitions. Second operand has 6 states, 5 states have (on average 35.8) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:30,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:01:30,776 INFO L93 Difference]: Finished difference Result 134084 states and 509328 transitions. [2022-09-16 11:01:30,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:01:30,777 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 35.8) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2022-09-16 11:01:30,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:01:32,255 INFO L225 Difference]: With dead ends: 134084 [2022-09-16 11:01:32,256 INFO L226 Difference]: Without dead ends: 133994 [2022-09-16 11:01:32,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:01:32,256 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 116 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:01:32,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 1126 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:01:32,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133994 states. [2022-09-16 11:01:36,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133994 to 132044. [2022-09-16 11:01:36,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132044 states, 131856 states have (on average 3.8151392428103383) internal successors, (503049), 132043 states have internal predecessors, (503049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:37,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132044 states to 132044 states and 503049 transitions. [2022-09-16 11:01:37,823 INFO L78 Accepts]: Start accepts. Automaton has 132044 states and 503049 transitions. Word has length 179 [2022-09-16 11:01:37,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:01:37,823 INFO L495 AbstractCegarLoop]: Abstraction has 132044 states and 503049 transitions. [2022-09-16 11:01:37,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 35.8) internal successors, (179), 6 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:37,823 INFO L276 IsEmpty]: Start isEmpty. Operand 132044 states and 503049 transitions. [2022-09-16 11:01:37,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-09-16 11:01:37,839 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:01:37,839 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:37,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-09-16 11:01:37,839 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:01:37,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:01:37,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1754880948, now seen corresponding path program 1 times [2022-09-16 11:01:37,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:01:37,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873059599] [2022-09-16 11:01:37,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:01:37,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:01:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:01:38,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:01:38,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:01:38,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873059599] [2022-09-16 11:01:38,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873059599] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:01:38,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:01:38,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-09-16 11:01:38,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224122710] [2022-09-16 11:01:38,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:01:38,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-09-16 11:01:38,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:01:38,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-09-16 11:01:38,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-09-16 11:01:38,072 INFO L87 Difference]: Start difference. First operand 132044 states and 503049 transitions. Second operand has 14 states, 13 states have (on average 14.076923076923077) internal successors, (183), 14 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:40,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:01:40,793 INFO L93 Difference]: Finished difference Result 134633 states and 511217 transitions. [2022-09-16 11:01:40,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:01:40,794 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.076923076923077) internal successors, (183), 14 states have internal predecessors, (183), 0 states have call successors, (0), 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 183 [2022-09-16 11:01:40,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:01:42,355 INFO L225 Difference]: With dead ends: 134633 [2022-09-16 11:01:42,355 INFO L226 Difference]: Without dead ends: 134543 [2022-09-16 11:01:42,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=165, Invalid=591, Unknown=0, NotChecked=0, Total=756 [2022-09-16 11:01:42,357 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 993 mSDsluCounter, 1850 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 11:01:42,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 1988 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 11:01:43,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134543 states. [2022-09-16 11:01:46,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134543 to 132875. [2022-09-16 11:01:46,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132875 states, 132687 states have (on average 3.815000715970668) internal successors, (506201), 132874 states have internal predecessors, (506201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:48,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132875 states to 132875 states and 506201 transitions. [2022-09-16 11:01:48,186 INFO L78 Accepts]: Start accepts. Automaton has 132875 states and 506201 transitions. Word has length 183 [2022-09-16 11:01:48,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:01:48,186 INFO L495 AbstractCegarLoop]: Abstraction has 132875 states and 506201 transitions. [2022-09-16 11:01:48,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.076923076923077) internal successors, (183), 14 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:01:48,187 INFO L276 IsEmpty]: Start isEmpty. Operand 132875 states and 506201 transitions. [2022-09-16 11:01:48,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-09-16 11:01:48,203 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:01:48,203 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:48,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-09-16 11:01:48,203 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:01:48,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:01:48,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1433264259, now seen corresponding path program 1 times [2022-09-16 11:01:48,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:01:48,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753171933] [2022-09-16 11:01:48,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:01:48,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:01:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:01:49,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:01:49,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:01:49,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753171933] [2022-09-16 11:01:49,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753171933] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:01:49,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125051003] [2022-09-16 11:01:49,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:01:49,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:01:49,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:01:49,550 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:01:49,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-09-16 11:01:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:01:49,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 54 conjunts are in the unsatisfiable core [2022-09-16 11:01:49,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:01:50,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-16 11:01:50,472 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-09-16 11:01:51,233 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-16 11:01:51,233 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-09-16 11:01:51,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-09-16 11:01:52,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:01:52,190 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-09-16 11:01:52,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:01:52,349 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-09-16 11:01:52,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:01:52,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-09-16 11:01:52,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-16 11:01:52,549 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:01:52,549 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 10 [2022-09-16 11:01:52,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:01:52,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:01:55,050 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:01:55,051 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2022-09-16 11:01:55,066 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:01:55,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2450 treesize of output 2390 [2022-09-16 11:01:55,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2374 treesize of output 1990 [2022-09-16 11:01:55,106 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1990 treesize of output 1798 [2022-09-16 11:01:55,133 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1798 treesize of output 1702 [2022-09-16 11:01:55,152 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1702 treesize of output 1654 [2022-09-16 11:01:59,021 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:01:59,022 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 106 [2022-09-16 11:01:59,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:01:59,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125051003] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:01:59,992 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:01:59,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 25, 26] total 78 [2022-09-16 11:01:59,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667952741] [2022-09-16 11:01:59,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:01:59,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-09-16 11:01:59,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:01:59,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-09-16 11:01:59,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=5697, Unknown=73, NotChecked=0, Total=6162 [2022-09-16 11:01:59,996 INFO L87 Difference]: Start difference. First operand 132875 states and 506201 transitions. Second operand has 79 states, 78 states have (on average 6.384615384615385) internal successors, (498), 79 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:02:14,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:02:14,291 INFO L93 Difference]: Finished difference Result 534785 states and 2072320 transitions. [2022-09-16 11:02:14,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-09-16 11:02:14,292 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 78 states have (on average 6.384615384615385) internal successors, (498), 79 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 184 [2022-09-16 11:02:14,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:02:20,616 INFO L225 Difference]: With dead ends: 534785 [2022-09-16 11:02:20,617 INFO L226 Difference]: Without dead ends: 534785 [2022-09-16 11:02:20,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 328 SyntacticMatches, 11 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5472 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=1379, Invalid=15518, Unknown=133, NotChecked=0, Total=17030 [2022-09-16 11:02:20,622 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 3006 mSDsluCounter, 23873 mSDsCounter, 0 mSdLazyCounter, 5383 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3006 SdHoareTripleChecker+Valid, 22784 SdHoareTripleChecker+Invalid, 11309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 5383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5783 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-09-16 11:02:20,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3006 Valid, 22784 Invalid, 11309 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [143 Valid, 5383 Invalid, 0 Unknown, 5783 Unchecked, 2.8s Time] [2022-09-16 11:02:21,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534785 states. [2022-09-16 11:02:33,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534785 to 148238. [2022-09-16 11:02:33,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148238 states, 148050 states have (on average 3.8066396487673084) internal successors, (563573), 148237 states have internal predecessors, (563573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:02:35,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148238 states to 148238 states and 563573 transitions. [2022-09-16 11:02:35,133 INFO L78 Accepts]: Start accepts. Automaton has 148238 states and 563573 transitions. Word has length 184 [2022-09-16 11:02:35,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:02:35,134 INFO L495 AbstractCegarLoop]: Abstraction has 148238 states and 563573 transitions. [2022-09-16 11:02:35,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 78 states have (on average 6.384615384615385) internal successors, (498), 79 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:02:35,134 INFO L276 IsEmpty]: Start isEmpty. Operand 148238 states and 563573 transitions. [2022-09-16 11:02:35,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-09-16 11:02:35,152 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:02:35,153 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:35,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-09-16 11:02:35,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:02:35,355 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:02:35,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:02:35,355 INFO L85 PathProgramCache]: Analyzing trace with hash 316361945, now seen corresponding path program 2 times [2022-09-16 11:02:35,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:02:35,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187034893] [2022-09-16 11:02:35,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:02:35,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:02:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:02:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:02:36,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:02:36,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187034893] [2022-09-16 11:02:36,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187034893] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:02:36,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569301410] [2022-09-16 11:02:36,207 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 11:02:36,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:02:36,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:02:36,208 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:02:36,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-09-16 11:02:36,333 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 11:02:36,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:02:36,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 24 conjunts are in the unsatisfiable core [2022-09-16 11:02:36,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:02:37,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:02:37,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-09-16 11:02:37,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:02:37,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-09-16 11:02:37,310 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-09-16 11:02:37,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:02:37,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:02:37,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569301410] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:02:37,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:02:37,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [26] total 39 [2022-09-16 11:02:37,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996881655] [2022-09-16 11:02:37,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:02:37,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-09-16 11:02:37,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:02:37,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-09-16 11:02:37,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1427, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 11:02:37,341 INFO L87 Difference]: Start difference. First operand 148238 states and 563573 transitions. Second operand has 15 states, 14 states have (on average 13.142857142857142) internal successors, (184), 15 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:02:39,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:02:39,869 INFO L93 Difference]: Finished difference Result 151769 states and 574648 transitions. [2022-09-16 11:02:39,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 11:02:39,870 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 13.142857142857142) internal successors, (184), 15 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 184 [2022-09-16 11:02:39,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:02:42,011 INFO L225 Difference]: With dead ends: 151769 [2022-09-16 11:02:42,011 INFO L226 Difference]: Without dead ends: 151769 [2022-09-16 11:02:42,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=284, Invalid=2686, Unknown=0, NotChecked=0, Total=2970 [2022-09-16 11:02:42,023 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 1034 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:02:42,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 1661 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:02:42,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151769 states. [2022-09-16 11:02:46,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151769 to 148205. [2022-09-16 11:02:46,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148205 states, 148017 states have (on average 3.8070154103920495) internal successors, (563503), 148204 states have internal predecessors, (563503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:02:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148205 states to 148205 states and 563503 transitions. [2022-09-16 11:02:48,280 INFO L78 Accepts]: Start accepts. Automaton has 148205 states and 563503 transitions. Word has length 184 [2022-09-16 11:02:48,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:02:48,281 INFO L495 AbstractCegarLoop]: Abstraction has 148205 states and 563503 transitions. [2022-09-16 11:02:48,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 13.142857142857142) internal successors, (184), 15 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:02:48,281 INFO L276 IsEmpty]: Start isEmpty. Operand 148205 states and 563503 transitions. [2022-09-16 11:02:48,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-09-16 11:02:48,307 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:02:48,307 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:48,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-09-16 11:02:48,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-09-16 11:02:48,512 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:02:48,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:02:48,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1481517928, now seen corresponding path program 1 times [2022-09-16 11:02:48,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:02:48,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848378917] [2022-09-16 11:02:48,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:02:48,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:02:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:02:48,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:02:48,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:02:48,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848378917] [2022-09-16 11:02:48,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848378917] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:02:48,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:02:48,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:02:48,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747545390] [2022-09-16 11:02:48,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:02:48,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:02:48,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:02:48,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:02:48,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:02:48,572 INFO L87 Difference]: Start difference. First operand 148205 states and 563503 transitions. Second operand has 4 states, 3 states have (on average 61.666666666666664) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:02:50,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:02:50,889 INFO L93 Difference]: Finished difference Result 177657 states and 680709 transitions. [2022-09-16 11:02:50,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:02:50,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 61.666666666666664) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-09-16 11:02:50,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:02:52,575 INFO L225 Difference]: With dead ends: 177657 [2022-09-16 11:02:52,575 INFO L226 Difference]: Without dead ends: 177567 [2022-09-16 11:02:52,576 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 11:02:52,576 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 117 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:02:52,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 559 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:02:52,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177567 states. [2022-09-16 11:02:57,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177567 to 162100. [2022-09-16 11:02:58,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162100 states, 161912 states have (on average 3.8703678541429913) internal successors, (626659), 162099 states have internal predecessors, (626659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:02:59,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162100 states to 162100 states and 626659 transitions. [2022-09-16 11:02:59,511 INFO L78 Accepts]: Start accepts. Automaton has 162100 states and 626659 transitions. Word has length 185 [2022-09-16 11:02:59,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:02:59,511 INFO L495 AbstractCegarLoop]: Abstraction has 162100 states and 626659 transitions. [2022-09-16 11:02:59,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 61.666666666666664) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:02:59,512 INFO L276 IsEmpty]: Start isEmpty. Operand 162100 states and 626659 transitions. [2022-09-16 11:02:59,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-09-16 11:02:59,532 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:02:59,532 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:59,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-09-16 11:02:59,532 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:02:59,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:02:59,533 INFO L85 PathProgramCache]: Analyzing trace with hash -2004702026, now seen corresponding path program 1 times [2022-09-16 11:02:59,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:02:59,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808462762] [2022-09-16 11:02:59,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:02:59,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:02:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:03:00,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:03:00,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:03:00,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808462762] [2022-09-16 11:03:00,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808462762] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:03:00,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721899676] [2022-09-16 11:03:00,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:03:00,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:03:00,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:03:00,708 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:03:00,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-09-16 11:03:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:03:00,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 23 conjunts are in the unsatisfiable core [2022-09-16 11:03:00,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:03:01,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-09-16 11:03:01,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:03:01,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:03:01,349 INFO L356 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2022-09-16 11:03:01,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2022-09-16 11:03:01,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:03:01,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721899676] provided 1 perfect and 1 imperfect interpolant sequences [2022-09-16 11:03:01,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-09-16 11:03:01,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [24, 11] total 37 [2022-09-16 11:03:01,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211900744] [2022-09-16 11:03:01,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:03:01,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:03:01,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:03:01,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:03:01,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1280, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 11:03:01,504 INFO L87 Difference]: Start difference. First operand 162100 states and 626659 transitions. Second operand has 6 states, 5 states have (on average 37.6) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:03:03,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:03:03,710 INFO L93 Difference]: Finished difference Result 185331 states and 705018 transitions. [2022-09-16 11:03:03,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:03:03,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 37.6) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 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 188 [2022-09-16 11:03:03,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:03:05,460 INFO L225 Difference]: With dead ends: 185331 [2022-09-16 11:03:05,460 INFO L226 Difference]: Without dead ends: 185331 [2022-09-16 11:03:05,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=136, Invalid=1424, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 11:03:05,461 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 202 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:03:05,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 1232 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:03:05,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185331 states. [2022-09-16 11:03:11,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185331 to 172716. [2022-09-16 11:03:12,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172716 states, 172528 states have (on average 3.8524007697301306) internal successors, (664647), 172715 states have internal predecessors, (664647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:03:14,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172716 states to 172716 states and 664647 transitions. [2022-09-16 11:03:14,709 INFO L78 Accepts]: Start accepts. Automaton has 172716 states and 664647 transitions. Word has length 188 [2022-09-16 11:03:14,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:03:14,710 INFO L495 AbstractCegarLoop]: Abstraction has 172716 states and 664647 transitions. [2022-09-16 11:03:14,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 37.6) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:03:14,710 INFO L276 IsEmpty]: Start isEmpty. Operand 172716 states and 664647 transitions. [2022-09-16 11:03:14,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-09-16 11:03:14,749 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:03:14,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:14,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-09-16 11:03:14,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-09-16 11:03:14,977 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:03:14,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:03:14,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1348784698, now seen corresponding path program 2 times [2022-09-16 11:03:14,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:03:14,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347694506] [2022-09-16 11:03:14,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:03:14,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:03:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:03:15,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:03:15,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:03:15,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347694506] [2022-09-16 11:03:15,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347694506] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:03:15,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:03:15,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-09-16 11:03:15,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144121909] [2022-09-16 11:03:15,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:03:15,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-09-16 11:03:15,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:03:15,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-09-16 11:03:15,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-09-16 11:03:15,222 INFO L87 Difference]: Start difference. First operand 172716 states and 664647 transitions. Second operand has 14 states, 13 states have (on average 14.461538461538462) internal successors, (188), 14 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:03:19,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:03:19,583 INFO L93 Difference]: Finished difference Result 240469 states and 927468 transitions. [2022-09-16 11:03:19,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 11:03:19,584 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.461538461538462) internal successors, (188), 14 states have internal predecessors, (188), 0 states have call successors, (0), 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 188 [2022-09-16 11:03:19,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:03:21,798 INFO L225 Difference]: With dead ends: 240469 [2022-09-16 11:03:21,798 INFO L226 Difference]: Without dead ends: 240469 [2022-09-16 11:03:21,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=202, Invalid=728, Unknown=0, NotChecked=0, Total=930 [2022-09-16 11:03:21,799 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 1163 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 11:03:21,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 2312 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 11:03:22,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240469 states. [2022-09-16 11:03:29,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240469 to 204166. [2022-09-16 11:03:29,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204166 states, 203978 states have (on average 3.9213934836109776) internal successors, (799878), 204165 states have internal predecessors, (799878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:03:31,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204166 states to 204166 states and 799878 transitions. [2022-09-16 11:03:31,570 INFO L78 Accepts]: Start accepts. Automaton has 204166 states and 799878 transitions. Word has length 188 [2022-09-16 11:03:31,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:03:31,571 INFO L495 AbstractCegarLoop]: Abstraction has 204166 states and 799878 transitions. [2022-09-16 11:03:31,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.461538461538462) internal successors, (188), 14 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:03:31,571 INFO L276 IsEmpty]: Start isEmpty. Operand 204166 states and 799878 transitions. [2022-09-16 11:03:31,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-09-16 11:03:31,592 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:03:31,592 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:31,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-09-16 11:03:31,592 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:03:31,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:03:31,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1925388021, now seen corresponding path program 1 times [2022-09-16 11:03:31,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:03:31,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656062503] [2022-09-16 11:03:31,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:03:31,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:03:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:03:31,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:03:31,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:03:31,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656062503] [2022-09-16 11:03:31,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656062503] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:03:31,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:03:31,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:03:31,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86850967] [2022-09-16 11:03:31,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:03:31,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:03:31,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:03:31,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:03:31,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:03:31,654 INFO L87 Difference]: Start difference. First operand 204166 states and 799878 transitions. Second operand has 6 states, 5 states have (on average 37.8) internal successors, (189), 6 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:03:35,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:03:35,793 INFO L93 Difference]: Finished difference Result 257710 states and 979694 transitions. [2022-09-16 11:03:35,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:03:35,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 37.8) internal successors, (189), 6 states have internal predecessors, (189), 0 states have call successors, (0), 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 189 [2022-09-16 11:03:35,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:03:39,337 INFO L225 Difference]: With dead ends: 257710 [2022-09-16 11:03:39,338 INFO L226 Difference]: Without dead ends: 256386 [2022-09-16 11:03:39,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-09-16 11:03:39,338 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 618 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:03:39,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 750 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:03:39,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256386 states. [2022-09-16 11:03:47,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256386 to 238384. [2022-09-16 11:03:48,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238384 states, 238183 states have (on average 3.8609178656747125) internal successors, (919605), 238383 states have internal predecessors, (919605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:03:50,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238384 states to 238384 states and 919605 transitions. [2022-09-16 11:03:50,316 INFO L78 Accepts]: Start accepts. Automaton has 238384 states and 919605 transitions. Word has length 189 [2022-09-16 11:03:50,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:03:50,316 INFO L495 AbstractCegarLoop]: Abstraction has 238384 states and 919605 transitions. [2022-09-16 11:03:50,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 37.8) internal successors, (189), 6 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:03:50,316 INFO L276 IsEmpty]: Start isEmpty. Operand 238384 states and 919605 transitions. [2022-09-16 11:03:50,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-09-16 11:03:50,339 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:03:50,339 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:50,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-09-16 11:03:50,339 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:03:50,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:03:50,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1098510585, now seen corresponding path program 1 times [2022-09-16 11:03:50,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:03:50,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081095982] [2022-09-16 11:03:50,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:03:50,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:03:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:03:50,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:03:50,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:03:50,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081095982] [2022-09-16 11:03:50,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081095982] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:03:50,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:03:50,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 11:03:50,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208608496] [2022-09-16 11:03:50,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:03:50,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 11:03:50,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:03:50,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 11:03:50,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:03:50,476 INFO L87 Difference]: Start difference. First operand 238384 states and 919605 transitions. Second operand has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:03:54,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:03:54,246 INFO L93 Difference]: Finished difference Result 286551 states and 1096059 transitions. [2022-09-16 11:03:54,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:03:54,247 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 0 states have call successors, (0), 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 189 [2022-09-16 11:03:54,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:03:56,731 INFO L225 Difference]: With dead ends: 286551 [2022-09-16 11:03:56,731 INFO L226 Difference]: Without dead ends: 286551 [2022-09-16 11:03:56,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-09-16 11:03:56,732 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 190 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:03:56,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 1546 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:03:57,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286551 states. [2022-09-16 11:04:06,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286551 to 255693. [2022-09-16 11:04:08,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255693 states, 255492 states have (on average 3.850496297340034) internal successors, (983771), 255692 states have internal predecessors, (983771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:04:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255693 states to 255693 states and 983771 transitions. [2022-09-16 11:04:11,706 INFO L78 Accepts]: Start accepts. Automaton has 255693 states and 983771 transitions. Word has length 189 [2022-09-16 11:04:11,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:04:11,706 INFO L495 AbstractCegarLoop]: Abstraction has 255693 states and 983771 transitions. [2022-09-16 11:04:11,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:04:11,707 INFO L276 IsEmpty]: Start isEmpty. Operand 255693 states and 983771 transitions. [2022-09-16 11:04:11,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-09-16 11:04:11,762 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:04:11,763 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:11,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-09-16 11:04:11,763 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:04:11,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:04:11,787 INFO L85 PathProgramCache]: Analyzing trace with hash -706053239, now seen corresponding path program 2 times [2022-09-16 11:04:11,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:04:11,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563474389] [2022-09-16 11:04:11,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:11,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:04:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:12,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:04:12,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:04:12,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563474389] [2022-09-16 11:04:12,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563474389] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:04:12,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:04:12,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 11:04:12,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830863013] [2022-09-16 11:04:12,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:04:12,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 11:04:12,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:04:12,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 11:04:12,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:04:12,045 INFO L87 Difference]: Start difference. First operand 255693 states and 983771 transitions. Second operand has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:04:16,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:04:16,852 INFO L93 Difference]: Finished difference Result 304584 states and 1162516 transitions. [2022-09-16 11:04:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:04:16,853 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 0 states have call successors, (0), 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 189 [2022-09-16 11:04:16,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:04:19,423 INFO L225 Difference]: With dead ends: 304584 [2022-09-16 11:04:19,423 INFO L226 Difference]: Without dead ends: 304584 [2022-09-16 11:04:19,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-09-16 11:04:19,424 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 205 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 11:04:19,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 1224 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 11:04:20,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304584 states. [2022-09-16 11:04:32,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304584 to 255609. [2022-09-16 11:04:32,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255609 states, 255408 states have (on average 3.850380567562488) internal successors, (983418), 255608 states have internal predecessors, (983418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:04:35,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255609 states to 255609 states and 983418 transitions. [2022-09-16 11:04:35,309 INFO L78 Accepts]: Start accepts. Automaton has 255609 states and 983418 transitions. Word has length 189 [2022-09-16 11:04:35,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:04:35,309 INFO L495 AbstractCegarLoop]: Abstraction has 255609 states and 983418 transitions. [2022-09-16 11:04:35,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:04:35,310 INFO L276 IsEmpty]: Start isEmpty. Operand 255609 states and 983418 transitions. [2022-09-16 11:04:35,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-09-16 11:04:35,334 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:04:35,335 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:35,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-09-16 11:04:35,335 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:04:35,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:04:35,335 INFO L85 PathProgramCache]: Analyzing trace with hash 263608681, now seen corresponding path program 3 times [2022-09-16 11:04:35,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:04:35,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314469476] [2022-09-16 11:04:35,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:35,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:04:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:35,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:04:35,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:04:35,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314469476] [2022-09-16 11:04:35,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314469476] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:04:35,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479473974] [2022-09-16 11:04:35,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-09-16 11:04:35,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:04:35,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:04:35,775 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:04:35,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-09-16 11:04:35,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-09-16 11:04:35,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:04:35,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 11:04:35,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:04:36,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-09-16 11:04:36,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:04:36,061 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:04:36,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479473974] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:04:36,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:04:36,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [20] total 25 [2022-09-16 11:04:36,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005936268] [2022-09-16 11:04:36,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:04:36,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 11:04:36,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:04:36,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 11:04:36,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2022-09-16 11:04:36,062 INFO L87 Difference]: Start difference. First operand 255609 states and 983418 transitions. Second operand has 7 states, 6 states have (on average 31.5) internal successors, (189), 7 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:04:39,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:04:39,828 INFO L93 Difference]: Finished difference Result 311588 states and 1182774 transitions. [2022-09-16 11:04:39,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-16 11:04:39,829 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 31.5) internal successors, (189), 7 states have internal predecessors, (189), 0 states have call successors, (0), 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 189 [2022-09-16 11:04:39,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:04:44,355 INFO L225 Difference]: With dead ends: 311588 [2022-09-16 11:04:44,355 INFO L226 Difference]: Without dead ends: 311588 [2022-09-16 11:04:44,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2022-09-16 11:04:44,356 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 260 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:04:44,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1546 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:04:46,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311588 states. [2022-09-16 11:04:55,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311588 to 250986. [2022-09-16 11:04:56,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250986 states, 250785 states have (on average 3.8506330123412487) internal successors, (965681), 250985 states have internal predecessors, (965681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:04:59,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250986 states to 250986 states and 965681 transitions. [2022-09-16 11:04:59,022 INFO L78 Accepts]: Start accepts. Automaton has 250986 states and 965681 transitions. Word has length 189 [2022-09-16 11:04:59,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:04:59,022 INFO L495 AbstractCegarLoop]: Abstraction has 250986 states and 965681 transitions. [2022-09-16 11:04:59,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 31.5) internal successors, (189), 7 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:04:59,023 INFO L276 IsEmpty]: Start isEmpty. Operand 250986 states and 965681 transitions. [2022-09-16 11:04:59,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-09-16 11:04:59,051 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:04:59,052 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:59,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-09-16 11:04:59,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-09-16 11:04:59,254 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:04:59,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:04:59,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1431231318, now seen corresponding path program 4 times [2022-09-16 11:04:59,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:04:59,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678453509] [2022-09-16 11:04:59,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:59,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:04:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:59,459 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:04:59,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:04:59,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678453509] [2022-09-16 11:04:59,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678453509] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:04:59,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584454800] [2022-09-16 11:04:59,460 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-09-16 11:04:59,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:04:59,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:04:59,464 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:04:59,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-09-16 11:04:59,628 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-09-16 11:04:59,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:04:59,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 47 conjunts are in the unsatisfiable core [2022-09-16 11:04:59,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:04:59,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-16 11:05:00,260 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-09-16 11:05:00,558 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-16 11:05:00,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-09-16 11:05:00,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-16 11:05:00,906 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-16 11:05:01,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:05:01,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-09-16 11:05:01,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-09-16 11:05:01,295 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:05:01,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:05:01,385 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_791 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_791) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 2147483648)) is different from false [2022-09-16 11:05:03,542 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:03,543 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 50 [2022-09-16 11:05:03,551 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1367 treesize of output 1287 [2022-09-16 11:05:03,560 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1158 treesize of output 966 [2022-09-16 11:05:03,573 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 573 treesize of output 513 [2022-09-16 11:05:03,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1035 treesize of output 915 [2022-09-16 11:05:04,939 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-09-16 11:05:05,118 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:05:05,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584454800] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:05:05,118 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:05:05,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 27, 27] total 66 [2022-09-16 11:05:05,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015144117] [2022-09-16 11:05:05,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:05:05,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-09-16 11:05:05,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:05:05,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-09-16 11:05:05,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=3902, Unknown=25, NotChecked=128, Total=4422 [2022-09-16 11:05:05,121 INFO L87 Difference]: Start difference. First operand 250986 states and 965681 transitions. Second operand has 67 states, 66 states have (on average 7.924242424242424) internal successors, (523), 67 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:05:15,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:05:15,403 INFO L93 Difference]: Finished difference Result 500077 states and 1863171 transitions. [2022-09-16 11:05:15,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-09-16 11:05:15,418 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 7.924242424242424) internal successors, (523), 67 states have internal predecessors, (523), 0 states have call successors, (0), 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 192 [2022-09-16 11:05:15,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:05:22,581 INFO L225 Difference]: With dead ends: 500077 [2022-09-16 11:05:22,581 INFO L226 Difference]: Without dead ends: 500077 [2022-09-16 11:05:22,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 349 SyntacticMatches, 3 SemanticMatches, 127 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4582 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=2086, Invalid=14149, Unknown=25, NotChecked=252, Total=16512 [2022-09-16 11:05:22,585 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 3451 mSDsluCounter, 10528 mSDsCounter, 0 mSdLazyCounter, 2031 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3451 SdHoareTripleChecker+Valid, 10187 SdHoareTripleChecker+Invalid, 3687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1593 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 11:05:22,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3451 Valid, 10187 Invalid, 3687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2031 Invalid, 0 Unknown, 1593 Unchecked, 0.9s Time] [2022-09-16 11:05:24,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500077 states. [2022-09-16 11:05:36,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500077 to 250950. [2022-09-16 11:05:37,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250950 states, 250749 states have (on average 3.850779065918508) internal successors, (965579), 250949 states have internal predecessors, (965579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:05:39,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250950 states to 250950 states and 965579 transitions. [2022-09-16 11:05:39,444 INFO L78 Accepts]: Start accepts. Automaton has 250950 states and 965579 transitions. Word has length 192 [2022-09-16 11:05:39,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:05:39,444 INFO L495 AbstractCegarLoop]: Abstraction has 250950 states and 965579 transitions. [2022-09-16 11:05:39,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 7.924242424242424) internal successors, (523), 67 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:05:39,444 INFO L276 IsEmpty]: Start isEmpty. Operand 250950 states and 965579 transitions. [2022-09-16 11:05:39,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-09-16 11:05:39,472 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:05:39,472 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:05:39,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-09-16 11:05:39,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:05:39,674 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:05:39,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:05:39,674 INFO L85 PathProgramCache]: Analyzing trace with hash 31490618, now seen corresponding path program 5 times [2022-09-16 11:05:39,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:05:39,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339162747] [2022-09-16 11:05:39,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:39,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:05:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:05:39,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:05:39,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339162747] [2022-09-16 11:05:39,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339162747] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:05:39,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164163815] [2022-09-16 11:05:39,862 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-09-16 11:05:39,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:05:39,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:05:39,863 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:05:39,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-09-16 11:05:40,034 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 11:05:40,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:05:40,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 51 conjunts are in the unsatisfiable core [2022-09-16 11:05:40,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:05:40,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-16 11:05:40,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-09-16 11:05:41,066 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-16 11:05:41,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-09-16 11:05:41,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-09-16 11:05:41,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:05:41,813 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-09-16 11:05:42,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:05:42,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-09-16 11:05:42,368 INFO L356 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-09-16 11:05:42,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-09-16 11:05:42,402 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:05:42,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:05:44,120 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:44,120 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2022-09-16 11:05:44,129 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:44,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 618 treesize of output 590 [2022-09-16 11:05:44,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 574 treesize of output 478 [2022-09-16 11:05:44,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 478 treesize of output 430 [2022-09-16 11:05:44,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 203 [2022-09-16 11:05:45,045 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:45,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 77 [2022-09-16 11:05:45,477 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:05:45,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164163815] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:05:45,478 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:05:45,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 27, 27] total 66 [2022-09-16 11:05:45,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800065679] [2022-09-16 11:05:45,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:05:45,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-09-16 11:05:45,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:05:45,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-09-16 11:05:45,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=4089, Unknown=31, NotChecked=0, Total=4422 [2022-09-16 11:05:45,480 INFO L87 Difference]: Start difference. First operand 250950 states and 965579 transitions. Second operand has 67 states, 66 states have (on average 7.9393939393939394) internal successors, (524), 67 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:05:56,508 WARN L833 $PredicateComparison]: unable to prove that (and (not (= |c_ULTIMATE.start_main_~#t2~0#1.base| c_~q1~0.base)) (forall ((~q1_front~0 Int) (v_ArrVal_836 (Array Int Int)) (v_ArrVal_835 (Array Int Int)) (v_ArrVal_837 (Array Int Int))) (or (< ~q1_front~0 0) (< c_~n1~0 (+ ~q1_front~0 1)) (< (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_#t~malloc38#1.base| v_ArrVal_835) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_836) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_837) c_~q1~0.base) (+ c_~q1~0.offset (* ~q1_front~0 4))) 2147483648)))) is different from false [2022-09-16 11:05:56,511 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((~q1_front~0 Int) (v_ArrVal_836 (Array Int Int)) (v_ArrVal_835 (Array Int Int)) (v_ArrVal_837 (Array Int Int))) (or (< ~q1_front~0 0) (< c_~n1~0 (+ ~q1_front~0 1)) (< (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_835) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_836) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_837) c_~q1~0.base) (+ c_~q1~0.offset (* ~q1_front~0 4))) 2147483648))) (not (= |c_ULTIMATE.start_main_~#t2~0#1.base| c_~q1~0.base))) is different from false [2022-09-16 11:05:56,518 WARN L833 $PredicateComparison]: unable to prove that (and (not (= |c_ULTIMATE.start_main_~#t2~0#1.base| c_~q1~0.base)) (forall ((~q1_front~0 Int) (v_ArrVal_836 (Array Int Int)) (v_ArrVal_837 (Array Int Int))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_836) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_837) c_~q1~0.base) (+ c_~q1~0.offset (* ~q1_front~0 4))) 2147483648) (< ~q1_front~0 0) (< c_~n1~0 (+ ~q1_front~0 1))))) is different from false [2022-09-16 11:06:04,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:06:04,066 INFO L93 Difference]: Finished difference Result 296668 states and 1111377 transitions. [2022-09-16 11:06:04,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-09-16 11:06:04,067 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 7.9393939393939394) internal successors, (524), 67 states have internal predecessors, (524), 0 states have call successors, (0), 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 192 [2022-09-16 11:06:04,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:06:08,128 INFO L225 Difference]: With dead ends: 296668 [2022-09-16 11:06:08,128 INFO L226 Difference]: Without dead ends: 296668 [2022-09-16 11:06:08,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 348 SyntacticMatches, 11 SemanticMatches, 124 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 4842 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=1197, Invalid=13727, Unknown=94, NotChecked=732, Total=15750 [2022-09-16 11:06:08,130 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 1130 mSDsluCounter, 20781 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 20256 SdHoareTripleChecker+Invalid, 6217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4414 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 11:06:08,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 20256 Invalid, 6217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1790 Invalid, 0 Unknown, 4414 Unchecked, 0.7s Time] [2022-09-16 11:06:08,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296668 states. [2022-09-16 11:06:17,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296668 to 256472. [2022-09-16 11:06:18,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256472 states, 256271 states have (on average 3.8395175419770475) internal successors, (983957), 256471 states have internal predecessors, (983957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:06:21,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256472 states to 256472 states and 983957 transitions. [2022-09-16 11:06:21,103 INFO L78 Accepts]: Start accepts. Automaton has 256472 states and 983957 transitions. Word has length 192 [2022-09-16 11:06:21,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:21,103 INFO L495 AbstractCegarLoop]: Abstraction has 256472 states and 983957 transitions. [2022-09-16 11:06:21,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 7.9393939393939394) internal successors, (524), 67 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:06:21,103 INFO L276 IsEmpty]: Start isEmpty. Operand 256472 states and 983957 transitions. [2022-09-16 11:06:21,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-09-16 11:06:21,132 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:21,132 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:21,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-09-16 11:06:21,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:21,334 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-09-16 11:06:21,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:21,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1084385278, now seen corresponding path program 6 times [2022-09-16 11:06:21,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:21,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260482792] [2022-09-16 11:06:21,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:21,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:22,300 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:06:22,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:22,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260482792] [2022-09-16 11:06:22,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260482792] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:06:22,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244232750] [2022-09-16 11:06:22,300 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-09-16 11:06:22,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:22,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:06:22,302 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:06:22,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-09-16 11:06:22,464 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-09-16 11:06:22,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:06:22,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 50 conjunts are in the unsatisfiable core [2022-09-16 11:06:22,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:06:22,683 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-16 11:06:22,873 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-09-16 11:06:23,390 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-16 11:06:23,390 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-09-16 11:06:23,511 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-09-16 11:06:23,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:06:23,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-09-16 11:06:24,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:06:24,147 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-09-16 11:06:24,293 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-16 11:06:24,295 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:24,295 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 10 [2022-09-16 11:06:24,325 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:06:24,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:06:25,876 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:25,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2022-09-16 11:06:25,889 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:25,890 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1234 treesize of output 1174 [2022-09-16 11:06:25,906 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1158 treesize of output 1110 [2022-09-16 11:06:25,929 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1110 treesize of output 918 [2022-09-16 11:06:25,939 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 918 treesize of output 822 [2022-09-16 11:06:26,877 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:26,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 66 [2022-09-16 11:06:27,276 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:06:27,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244232750] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:06:27,276 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:06:27,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 23] total 68 [2022-09-16 11:06:27,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358409607] [2022-09-16 11:06:27,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:06:27,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-09-16 11:06:27,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:27,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-09-16 11:06:27,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=4361, Unknown=54, NotChecked=0, Total=4692 [2022-09-16 11:06:27,278 INFO L87 Difference]: Start difference. First operand 256472 states and 983957 transitions. Second operand has 69 states, 68 states have (on average 7.676470588235294) internal successors, (522), 69 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-09-16 11:07:21,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-09-16 11:07:21,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 368 SyntacticMatches, 55 SemanticMatches, 255 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28742 ImplicationChecksByTransitivity, 29.8s TimeCoverageRelationStatistics Valid=7645, Invalid=57937, Unknown=210, NotChecked=0, Total=65792 [2022-09-16 11:07:21,151 INFO L413 NwaCegarLoop]: 1191 mSDtfsCounter, 9229 mSDsluCounter, 49289 mSDsCounter, 0 mSdLazyCounter, 12634 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9229 SdHoareTripleChecker+Valid, 47110 SdHoareTripleChecker+Invalid, 26210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 12634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13174 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-09-16 11:07:21,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9229 Valid, 47110 Invalid, 26210 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [402 Valid, 12634 Invalid, 0 Unknown, 13174 Unchecked, 6.8s Time] [2022-09-16 11:07:21,153 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 11:07:21,153 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-16 11:07:21,153 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 61 remaining) [2022-09-16 11:07:21,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-09-16 11:07:21,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:07:21,380 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). [2022-09-16 11:07:21,382 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 61 remaining) [2022-09-16 11:07:21,382 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 61 remaining) [2022-09-16 11:07:21,382 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 61 remaining) [2022-09-16 11:07:21,382 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 61 remaining) [2022-09-16 11:07:21,382 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 61 remaining) [2022-09-16 11:07:21,382 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 61 remaining) [2022-09-16 11:07:21,383 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 61 remaining) [2022-09-16 11:07:21,383 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 61 remaining) [2022-09-16 11:07:21,383 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 61 remaining) [2022-09-16 11:07:21,383 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 61 remaining) [2022-09-16 11:07:21,383 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 61 remaining) [2022-09-16 11:07:21,383 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 61 remaining) [2022-09-16 11:07:21,383 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 61 remaining) [2022-09-16 11:07:21,383 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 61 remaining) [2022-09-16 11:07:21,383 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 61 remaining) [2022-09-16 11:07:21,383 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 61 remaining) [2022-09-16 11:07:21,384 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 61 remaining) [2022-09-16 11:07:21,384 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 61 remaining) [2022-09-16 11:07:21,384 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 61 remaining) [2022-09-16 11:07:21,384 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 61 remaining) [2022-09-16 11:07:21,384 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 61 remaining) [2022-09-16 11:07:21,384 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 61 remaining) [2022-09-16 11:07:21,384 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 61 remaining) [2022-09-16 11:07:21,384 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 61 remaining) [2022-09-16 11:07:21,384 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 61 remaining) [2022-09-16 11:07:21,384 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 61 remaining) [2022-09-16 11:07:21,385 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 61 remaining) [2022-09-16 11:07:21,385 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 61 remaining) [2022-09-16 11:07:21,385 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 61 remaining) [2022-09-16 11:07:21,385 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 61 remaining) [2022-09-16 11:07:21,385 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 61 remaining) [2022-09-16 11:07:21,385 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 61 remaining) [2022-09-16 11:07:21,385 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 61 remaining) [2022-09-16 11:07:21,385 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 61 remaining) [2022-09-16 11:07:21,385 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 61 remaining) [2022-09-16 11:07:21,385 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 61 remaining) [2022-09-16 11:07:21,385 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 61 remaining) [2022-09-16 11:07:21,386 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 61 remaining) [2022-09-16 11:07:21,386 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 61 remaining) [2022-09-16 11:07:21,386 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 61 remaining) [2022-09-16 11:07:21,386 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 61 remaining) [2022-09-16 11:07:21,386 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 61 remaining) [2022-09-16 11:07:21,386 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 61 remaining) [2022-09-16 11:07:21,386 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 61 remaining) [2022-09-16 11:07:21,386 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 61 remaining) [2022-09-16 11:07:21,386 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 61 remaining) [2022-09-16 11:07:21,386 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 61 remaining) [2022-09-16 11:07:21,386 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 61 remaining) [2022-09-16 11:07:21,386 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 61 remaining) [2022-09-16 11:07:21,386 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 61 remaining) [2022-09-16 11:07:21,386 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 61 remaining) [2022-09-16 11:07:21,386 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 61 remaining) [2022-09-16 11:07:21,387 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 61 remaining) [2022-09-16 11:07:21,387 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 61 remaining) [2022-09-16 11:07:21,387 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 61 remaining) [2022-09-16 11:07:21,387 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 61 remaining) [2022-09-16 11:07:21,387 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 61 remaining) [2022-09-16 11:07:21,387 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 61 remaining) [2022-09-16 11:07:21,387 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 61 remaining) [2022-09-16 11:07:21,387 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 61 remaining) [2022-09-16 11:07:21,389 INFO L444 BasicCegarLoop]: Path program histogram: [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:07:21,393 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:07:21,393 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:07:21,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:07:21 BasicIcfg [2022-09-16 11:07:21,395 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:07:21,395 INFO L158 Benchmark]: Toolchain (without parser) took 540741.57ms. Allocated memory was 174.1MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 114.0MB in the beginning and 4.6GB in the end (delta: -4.4GB). Peak memory consumption was 3.7GB. Max. memory is 8.0GB. [2022-09-16 11:07:21,395 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 174.1MB. Free memory is still 131.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:07:21,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.16ms. Allocated memory is still 174.1MB. Free memory was 113.8MB in the beginning and 146.7MB in the end (delta: -33.0MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. [2022-09-16 11:07:21,396 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.18ms. Allocated memory is still 174.1MB. Free memory was 146.7MB in the beginning and 144.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:07:21,396 INFO L158 Benchmark]: Boogie Preprocessor took 31.63ms. Allocated memory is still 174.1MB. Free memory was 144.0MB in the beginning and 142.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:07:21,396 INFO L158 Benchmark]: RCFGBuilder took 906.63ms. Allocated memory was 174.1MB in the beginning and 243.3MB in the end (delta: 69.2MB). Free memory was 141.9MB in the beginning and 212.5MB in the end (delta: -70.7MB). Peak memory consumption was 55.7MB. Max. memory is 8.0GB. [2022-09-16 11:07:21,398 INFO L158 Benchmark]: TraceAbstraction took 539454.02ms. Allocated memory was 243.3MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 211.5MB in the beginning and 4.6GB in the end (delta: -4.3GB). Peak memory consumption was 3.7GB. Max. memory is 8.0GB. [2022-09-16 11:07:21,399 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 174.1MB. Free memory is still 131.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 286.16ms. Allocated memory is still 174.1MB. Free memory was 113.8MB in the beginning and 146.7MB in the end (delta: -33.0MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.18ms. Allocated memory is still 174.1MB. Free memory was 146.7MB in the beginning and 144.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.63ms. Allocated memory is still 174.1MB. Free memory was 144.0MB in the beginning and 142.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 906.63ms. Allocated memory was 174.1MB in the beginning and 243.3MB in the end (delta: 69.2MB). Free memory was 141.9MB in the beginning and 212.5MB in the end (delta: -70.7MB). Peak memory consumption was 55.7MB. Max. memory is 8.0GB. * TraceAbstraction took 539454.02ms. Allocated memory was 243.3MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 211.5MB in the beginning and 4.6GB in the end (delta: -4.3GB). Peak memory consumption was 3.7GB. 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 NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 166]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 166]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 166]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 166]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 166]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 166]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 148]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 150]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 149]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while NwaCegarLoop was constructing difference of abstraction (256472states) and FLOYD_HOARE automaton (currently 202 states, 69 states before enhancement),while ReachableStatesComputation was computing reachable states (1290342 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 372 locations, 61 error locations. Started 1 CEGAR loops. OverallTime: 539.3s, OverallIterations: 32, TraceHistogramMax: 7, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.7s, AutomataDifference: 248.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35871 SdHoareTripleChecker+Valid, 17.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35871 mSDsluCounter, 135178 SdHoareTripleChecker+Invalid, 14.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 24964 IncrementalHoareTripleChecker+Unchecked, 134475 mSDsCounter, 1361 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30419 IncrementalHoareTripleChecker+Invalid, 56744 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1361 mSolverCounterUnsat, 10365 mSDtfsCounter, 30419 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4878 GetRequests, 3683 SyntacticMatches, 85 SemanticMatches, 1110 ConstructedPredicates, 4 IntricatePredicates, 1 DeprecatedPredicates, 47478 ImplicationChecksByTransitivity, 62.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256472occurred in iteration=31, InterpolantAutomatonStates: 573, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 244.2s AutomataMinimizationTime, 31 MinimizatonAttempts, 2152703 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 36.5s InterpolantComputationTime, 7695 NumberOfCodeBlocks, 7623 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 9088 ConstructedInterpolants, 622 QuantifiedInterpolants, 72907 SizeOfPredicates, 198 NumberOfNonLiveVariables, 5343 ConjunctsInSsa, 315 ConjunctsInUnsatCore, 56 InterpolantComputations, 24 PerfectInterpolantSequences, 176/931 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 Completed graceful shutdown