/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/array-eq-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:45:31,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:45:31,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:45:31,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:45:31,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:45:31,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:45:31,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:45:31,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:45:31,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:45:31,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:45:31,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:45:31,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:45:31,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:45:31,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:45:31,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:45:31,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:45:31,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:45:31,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:45:31,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:45:31,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:45:31,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:45:31,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:45:31,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:45:31,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:45:31,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:45:31,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:45:31,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:45:31,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:45:31,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:45:31,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:45:31,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:45:31,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:45:31,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:45:31,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:45:31,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:45:31,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:45:31,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:45:31,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:45:31,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:45:31,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:45:31,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:45:31,441 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 10:45:31,478 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:45:31,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:45:31,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:45:31,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:45:31,480 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:45:31,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:45:31,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:45:31,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:45:31,480 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:45:31,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:45:31,481 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:45:31,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:45:31,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:45:31,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:45:31,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:45:31,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:45:31,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:45:31,482 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:45:31,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:45:31,482 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:45:31,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:45:31,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:45:31,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:45:31,483 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:45:31,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:45:31,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:45:31,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:45:31,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:45:31,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:45:31,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:45:31,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:45:31,484 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:45:31,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:45:31,484 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:45:31,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:45:31,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:45:31,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:45:31,739 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:45:31,739 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:45:31,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/array-eq-trans.wvr.c [2022-09-16 10:45:31,787 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4106db2e6/77641ae813304fe4be5e342fc74697e3/FLAG7aed1bea4 [2022-09-16 10:45:32,188 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:45:32,189 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/array-eq-trans.wvr.c [2022-09-16 10:45:32,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4106db2e6/77641ae813304fe4be5e342fc74697e3/FLAG7aed1bea4 [2022-09-16 10:45:32,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4106db2e6/77641ae813304fe4be5e342fc74697e3 [2022-09-16 10:45:32,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:45:32,220 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:45:32,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:45:32,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:45:32,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:45:32,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:45:32" (1/1) ... [2022-09-16 10:45:32,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17eb7b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:45:32, skipping insertion in model container [2022-09-16 10:45:32,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:45:32" (1/1) ... [2022-09-16 10:45:32,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:45:32,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:45:32,420 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/array-eq-trans.wvr.c[2737,2750] [2022-09-16 10:45:32,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:45:32,430 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:45:32,450 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/array-eq-trans.wvr.c[2737,2750] [2022-09-16 10:45:32,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:45:32,463 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:45:32,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:45:32 WrapperNode [2022-09-16 10:45:32,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:45:32,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:45:32,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:45:32,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:45:32,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:45:32" (1/1) ... [2022-09-16 10:45:32,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:45:32" (1/1) ... [2022-09-16 10:45:32,506 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 210 [2022-09-16 10:45:32,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:45:32,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:45:32,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:45:32,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:45:32,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:45:32" (1/1) ... [2022-09-16 10:45:32,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:45:32" (1/1) ... [2022-09-16 10:45:32,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:45:32" (1/1) ... [2022-09-16 10:45:32,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:45:32" (1/1) ... [2022-09-16 10:45:32,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:45:32" (1/1) ... [2022-09-16 10:45:32,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:45:32" (1/1) ... [2022-09-16 10:45:32,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:45:32" (1/1) ... [2022-09-16 10:45:32,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:45:32,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:45:32,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:45:32,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:45:32,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:45:32" (1/1) ... [2022-09-16 10:45:32,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:45:32,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:45:32,572 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 10:45:32,573 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 10:45:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:45:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 10:45:32,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 10:45:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 10:45:32,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 10:45:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 10:45:32,611 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 10:45:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:45:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:45:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:45:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 10:45:32,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:45:32,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:45:32,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:45:32,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:45:32,613 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 10:45:32,753 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:45:32,754 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:45:33,207 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:45:33,216 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:45:33,216 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-09-16 10:45:33,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:45:33 BoogieIcfgContainer [2022-09-16 10:45:33,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:45:33,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:45:33,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:45:33,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:45:33,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:45:32" (1/3) ... [2022-09-16 10:45:33,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e82db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:45:33, skipping insertion in model container [2022-09-16 10:45:33,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:45:32" (2/3) ... [2022-09-16 10:45:33,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e82db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:45:33, skipping insertion in model container [2022-09-16 10:45:33,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:45:33" (3/3) ... [2022-09-16 10:45:33,225 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-trans.wvr.c [2022-09-16 10:45:33,231 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:45:33,239 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:45:33,239 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-09-16 10:45:33,239 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:45:33,336 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-16 10:45:33,383 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 309 places, 329 transitions, 682 flow [2022-09-16 10:45:34,461 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 25970 states, 25938 states have (on average 3.9464877785488475) internal successors, (102364), 25969 states have internal predecessors, (102364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:34,489 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:45:34,494 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;@a74cf75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:45:34,494 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-09-16 10:45:34,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 25970 states, 25938 states have (on average 3.9464877785488475) internal successors, (102364), 25969 states have internal predecessors, (102364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:34,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-09-16 10:45:34,553 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:34,553 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] [2022-09-16 10:45:34,554 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:34,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:34,560 INFO L85 PathProgramCache]: Analyzing trace with hash -895934613, now seen corresponding path program 1 times [2022-09-16 10:45:34,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:34,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252124835] [2022-09-16 10:45:34,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:34,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:34,818 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 10:45:34,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:34,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252124835] [2022-09-16 10:45:34,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252124835] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:34,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:34,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:45:34,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801611844] [2022-09-16 10:45:34,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:34,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:45:34,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:34,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:45:34,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:45:34,907 INFO L87 Difference]: Start difference. First operand has 25970 states, 25938 states have (on average 3.9464877785488475) internal successors, (102364), 25969 states have internal predecessors, (102364), 0 states have call successors, (0), 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 20.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:36,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:36,048 INFO L93 Difference]: Finished difference Result 51840 states and 196834 transitions. [2022-09-16 10:45:36,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:45:36,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-09-16 10:45:36,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:36,715 INFO L225 Difference]: With dead ends: 51840 [2022-09-16 10:45:36,715 INFO L226 Difference]: Without dead ends: 51834 [2022-09-16 10:45:36,716 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 10:45:36,721 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 129 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:36,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 615 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:45:36,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51834 states. [2022-09-16 10:45:38,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51834 to 25985. [2022-09-16 10:45:38,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25985 states, 25953 states have (on average 3.7947443455477208) internal successors, (98485), 25984 states have internal predecessors, (98485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:38,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25985 states to 25985 states and 98485 transitions. [2022-09-16 10:45:38,577 INFO L78 Accepts]: Start accepts. Automaton has 25985 states and 98485 transitions. Word has length 60 [2022-09-16 10:45:38,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:38,578 INFO L495 AbstractCegarLoop]: Abstraction has 25985 states and 98485 transitions. [2022-09-16 10:45:38,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:38,579 INFO L276 IsEmpty]: Start isEmpty. Operand 25985 states and 98485 transitions. [2022-09-16 10:45:38,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-09-16 10:45:38,580 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:38,580 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] [2022-09-16 10:45:38,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:45:38,581 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:38,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:38,582 INFO L85 PathProgramCache]: Analyzing trace with hash -208542109, now seen corresponding path program 1 times [2022-09-16 10:45:38,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:38,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669914124] [2022-09-16 10:45:38,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:38,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:38,655 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 10:45:38,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:38,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669914124] [2022-09-16 10:45:38,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669914124] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:45:38,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188276621] [2022-09-16 10:45:38,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:38,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:45:38,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:45:38,658 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 10:45:38,692 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 10:45:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:38,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:45:38,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:45:38,826 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 10:45:38,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:45:38,882 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 10:45:38,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188276621] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:45:38,886 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:45:38,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 10:45:38,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706016899] [2022-09-16 10:45:38,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:45:38,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 10:45:38,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:38,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 10:45:38,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:45:38,893 INFO L87 Difference]: Start difference. First operand 25985 states and 98485 transitions. Second operand has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 12 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:40,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:40,848 INFO L93 Difference]: Finished difference Result 129450 states and 491935 transitions. [2022-09-16 10:45:40,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:45:40,850 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 12 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-09-16 10:45:40,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:41,852 INFO L225 Difference]: With dead ends: 129450 [2022-09-16 10:45:41,852 INFO L226 Difference]: Without dead ends: 129450 [2022-09-16 10:45:41,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 131 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 10:45:41,854 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 793 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:41,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1676 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:45:42,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129450 states. [2022-09-16 10:45:44,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129450 to 26063. [2022-09-16 10:45:44,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26063 states, 26031 states have (on average 3.786946333218086) internal successors, (98578), 26062 states have internal predecessors, (98578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:44,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26063 states to 26063 states and 98578 transitions. [2022-09-16 10:45:44,211 INFO L78 Accepts]: Start accepts. Automaton has 26063 states and 98578 transitions. Word has length 69 [2022-09-16 10:45:44,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:44,214 INFO L495 AbstractCegarLoop]: Abstraction has 26063 states and 98578 transitions. [2022-09-16 10:45:44,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 12 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:44,214 INFO L276 IsEmpty]: Start isEmpty. Operand 26063 states and 98578 transitions. [2022-09-16 10:45:44,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-09-16 10:45:44,217 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:44,217 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] [2022-09-16 10:45:44,241 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 10:45:44,439 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 10:45:44,440 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:44,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:44,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2125129790, now seen corresponding path program 1 times [2022-09-16 10:45:44,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:44,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405520668] [2022-09-16 10:45:44,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:44,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:44,540 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 10:45:44,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:44,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405520668] [2022-09-16 10:45:44,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405520668] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:45:44,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277648743] [2022-09-16 10:45:44,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:44,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:45:44,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:45:44,542 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 10:45:44,553 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 10:45:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:44,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:45:44,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:45:44,655 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 10:45:44,655 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:45:44,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277648743] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:44,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:45:44,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:45:44,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115601529] [2022-09-16 10:45:44,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:44,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:45:44,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:44,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:45:44,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:45:44,657 INFO L87 Difference]: Start difference. First operand 26063 states and 98578 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:45,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:45,354 INFO L93 Difference]: Finished difference Result 51903 states and 196906 transitions. [2022-09-16 10:45:45,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:45:45,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-09-16 10:45:45,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:45,632 INFO L225 Difference]: With dead ends: 51903 [2022-09-16 10:45:45,632 INFO L226 Difference]: Without dead ends: 51903 [2022-09-16 10:45:45,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:45:45,633 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 272 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:45,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 789 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:45:45,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51903 states. [2022-09-16 10:45:46,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51903 to 26060. [2022-09-16 10:45:46,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26060 states, 26031 states have (on average 3.7866005916023204) internal successors, (98569), 26059 states have internal predecessors, (98569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:46,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26060 states to 26060 states and 98569 transitions. [2022-09-16 10:45:46,778 INFO L78 Accepts]: Start accepts. Automaton has 26060 states and 98569 transitions. Word has length 70 [2022-09-16 10:45:46,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:46,778 INFO L495 AbstractCegarLoop]: Abstraction has 26060 states and 98569 transitions. [2022-09-16 10:45:46,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:46,779 INFO L276 IsEmpty]: Start isEmpty. Operand 26060 states and 98569 transitions. [2022-09-16 10:45:46,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:45:46,780 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:46,780 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] [2022-09-16 10:45:46,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-09-16 10:45:46,981 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 10:45:46,982 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:46,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:46,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1474687637, now seen corresponding path program 2 times [2022-09-16 10:45:46,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:46,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960424902] [2022-09-16 10:45:46,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:46,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:47,136 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 10:45:47,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:47,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960424902] [2022-09-16 10:45:47,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960424902] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:45:47,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854809493] [2022-09-16 10:45:47,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:45:47,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:45:47,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:45:47,140 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 10:45:47,153 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 10:45:47,227 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:45:47,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:45:47,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 10:45:47,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:45:47,395 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 10:45:47,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:45:47,538 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 10:45:47,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854809493] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:45:47,539 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:45:47,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-09-16 10:45:47,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550125669] [2022-09-16 10:45:47,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:45:47,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 10:45:47,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:47,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 10:45:47,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-09-16 10:45:47,540 INFO L87 Difference]: Start difference. First operand 26060 states and 98569 transitions. Second operand has 18 states, 17 states have (on average 8.294117647058824) internal successors, (141), 18 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:50,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:50,397 INFO L93 Difference]: Finished difference Result 181170 states and 688649 transitions. [2022-09-16 10:45:50,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-09-16 10:45:50,398 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 8.294117647058824) internal successors, (141), 18 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:45:50,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:51,847 INFO L225 Difference]: With dead ends: 181170 [2022-09-16 10:45:51,847 INFO L226 Difference]: Without dead ends: 181170 [2022-09-16 10:45:51,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 181 SyntacticMatches, 5 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=991, Invalid=3041, Unknown=0, NotChecked=0, Total=4032 [2022-09-16 10:45:51,849 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 3187 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3187 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:51,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3187 Valid, 1663 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:45:52,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181170 states. [2022-09-16 10:45:54,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181170 to 26062. [2022-09-16 10:45:54,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26062 states, 26034 states have (on average 3.786241069370823) internal successors, (98571), 26061 states have internal predecessors, (98571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:54,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26062 states to 26062 states and 98571 transitions. [2022-09-16 10:45:54,832 INFO L78 Accepts]: Start accepts. Automaton has 26062 states and 98571 transitions. Word has length 96 [2022-09-16 10:45:54,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:54,832 INFO L495 AbstractCegarLoop]: Abstraction has 26062 states and 98571 transitions. [2022-09-16 10:45:54,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 8.294117647058824) internal successors, (141), 18 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:54,833 INFO L276 IsEmpty]: Start isEmpty. Operand 26062 states and 98571 transitions. [2022-09-16 10:45:54,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-09-16 10:45:54,835 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:54,835 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] [2022-09-16 10:45:54,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-09-16 10:45:55,038 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 10:45:55,039 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:55,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:55,039 INFO L85 PathProgramCache]: Analyzing trace with hash -111854088, now seen corresponding path program 1 times [2022-09-16 10:45:55,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:55,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013015045] [2022-09-16 10:45:55,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:55,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:55,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:55,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:55,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013015045] [2022-09-16 10:45:55,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013015045] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:55,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:55,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:45:55,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248425649] [2022-09-16 10:45:55,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:55,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:45:55,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:55,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:45:55,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:45:55,129 INFO L87 Difference]: Start difference. First operand 26062 states and 98571 transitions. Second operand has 4 states, 3 states have (on average 42.0) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:55,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:55,730 INFO L93 Difference]: Finished difference Result 49058 states and 186189 transitions. [2022-09-16 10:45:55,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:45:55,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 42.0) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2022-09-16 10:45:55,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:55,907 INFO L225 Difference]: With dead ends: 49058 [2022-09-16 10:45:55,907 INFO L226 Difference]: Without dead ends: 49058 [2022-09-16 10:45:55,907 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 10:45:55,908 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 205 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:55,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 551 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:45:55,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49058 states. [2022-09-16 10:45:57,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49058 to 38752. [2022-09-16 10:45:57,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38752 states, 38724 states have (on average 3.8556192542092758) internal successors, (149305), 38751 states have internal predecessors, (149305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:57,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38752 states to 38752 states and 149305 transitions. [2022-09-16 10:45:57,415 INFO L78 Accepts]: Start accepts. Automaton has 38752 states and 149305 transitions. Word has length 126 [2022-09-16 10:45:57,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:57,416 INFO L495 AbstractCegarLoop]: Abstraction has 38752 states and 149305 transitions. [2022-09-16 10:45:57,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 42.0) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:57,416 INFO L276 IsEmpty]: Start isEmpty. Operand 38752 states and 149305 transitions. [2022-09-16 10:45:57,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-09-16 10:45:57,420 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:57,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:45:57,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:45:57,421 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:57,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:57,421 INFO L85 PathProgramCache]: Analyzing trace with hash -597735967, now seen corresponding path program 1 times [2022-09-16 10:45:57,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:57,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037040968] [2022-09-16 10:45:57,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:57,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:57,518 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 10:45:57,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:57,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037040968] [2022-09-16 10:45:57,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037040968] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:57,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:57,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:45:57,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089215353] [2022-09-16 10:45:57,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:57,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:45:57,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:57,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:45:57,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:45:57,524 INFO L87 Difference]: Start difference. First operand 38752 states and 149305 transitions. Second operand has 4 states, 3 states have (on average 44.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:58,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:58,255 INFO L93 Difference]: Finished difference Result 72776 states and 281441 transitions. [2022-09-16 10:45:58,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:45:58,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 44.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-09-16 10:45:58,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:58,553 INFO L225 Difference]: With dead ends: 72776 [2022-09-16 10:45:58,554 INFO L226 Difference]: Without dead ends: 72776 [2022-09-16 10:45:58,554 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 10:45:58,555 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 193 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:58,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 544 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:45:58,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72776 states. [2022-09-16 10:46:00,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72776 to 58192. [2022-09-16 10:46:00,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58192 states, 58164 states have (on average 3.9189533044494875) internal successors, (227942), 58191 states have internal predecessors, (227942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:00,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58192 states to 58192 states and 227942 transitions. [2022-09-16 10:46:00,836 INFO L78 Accepts]: Start accepts. Automaton has 58192 states and 227942 transitions. Word has length 132 [2022-09-16 10:46:00,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:00,837 INFO L495 AbstractCegarLoop]: Abstraction has 58192 states and 227942 transitions. [2022-09-16 10:46:00,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 44.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:00,837 INFO L276 IsEmpty]: Start isEmpty. Operand 58192 states and 227942 transitions. [2022-09-16 10:46:00,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-09-16 10:46:00,846 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:00,846 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:46:00,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:46:00,846 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:00,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:00,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1489725109, now seen corresponding path program 1 times [2022-09-16 10:46:00,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:00,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652971947] [2022-09-16 10:46:00,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:00,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:00,953 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-09-16 10:46:00,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:00,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652971947] [2022-09-16 10:46:00,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652971947] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:00,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:00,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 10:46:00,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637157679] [2022-09-16 10:46:00,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:00,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:46:00,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:00,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:46:00,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:46:00,955 INFO L87 Difference]: Start difference. First operand 58192 states and 227942 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:02,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:02,072 INFO L93 Difference]: Finished difference Result 81547 states and 310504 transitions. [2022-09-16 10:46:02,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-16 10:46:02,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 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 137 [2022-09-16 10:46:02,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:02,880 INFO L225 Difference]: With dead ends: 81547 [2022-09-16 10:46:02,880 INFO L226 Difference]: Without dead ends: 81447 [2022-09-16 10:46:02,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:46:02,881 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 383 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:02,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 976 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:46:02,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81447 states. [2022-09-16 10:46:04,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81447 to 60386. [2022-09-16 10:46:04,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60386 states, 60358 states have (on average 3.90695516750058) internal successors, (235816), 60385 states have internal predecessors, (235816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:05,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60386 states to 60386 states and 235816 transitions. [2022-09-16 10:46:05,251 INFO L78 Accepts]: Start accepts. Automaton has 60386 states and 235816 transitions. Word has length 137 [2022-09-16 10:46:05,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:05,252 INFO L495 AbstractCegarLoop]: Abstraction has 60386 states and 235816 transitions. [2022-09-16 10:46:05,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:05,252 INFO L276 IsEmpty]: Start isEmpty. Operand 60386 states and 235816 transitions. [2022-09-16 10:46:05,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-09-16 10:46:05,281 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:05,295 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] [2022-09-16 10:46:05,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:46:05,296 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:05,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:05,300 INFO L85 PathProgramCache]: Analyzing trace with hash 345801704, now seen corresponding path program 1 times [2022-09-16 10:46:05,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:05,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883916669] [2022-09-16 10:46:05,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:05,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:05,379 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 10:46:05,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:05,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883916669] [2022-09-16 10:46:05,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883916669] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:05,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:05,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:46:05,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671878853] [2022-09-16 10:46:05,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:05,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:46:05,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:05,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:46:05,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:46:05,382 INFO L87 Difference]: Start difference. First operand 60386 states and 235816 transitions. Second operand has 4 states, 3 states have (on average 46.0) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:06,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:06,647 INFO L93 Difference]: Finished difference Result 109424 states and 431704 transitions. [2022-09-16 10:46:06,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:46:06,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 46.0) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2022-09-16 10:46:06,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:07,180 INFO L225 Difference]: With dead ends: 109424 [2022-09-16 10:46:07,180 INFO L226 Difference]: Without dead ends: 109424 [2022-09-16 10:46:07,181 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 10:46:07,181 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 181 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:07,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 537 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:46:07,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109424 states. [2022-09-16 10:46:09,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109424 to 88358. [2022-09-16 10:46:10,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88358 states, 88330 states have (on average 3.985939092041209) internal successors, (352078), 88357 states have internal predecessors, (352078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:10,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88358 states to 88358 states and 352078 transitions. [2022-09-16 10:46:10,465 INFO L78 Accepts]: Start accepts. Automaton has 88358 states and 352078 transitions. Word has length 138 [2022-09-16 10:46:10,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:10,466 INFO L495 AbstractCegarLoop]: Abstraction has 88358 states and 352078 transitions. [2022-09-16 10:46:10,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 46.0) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:10,466 INFO L276 IsEmpty]: Start isEmpty. Operand 88358 states and 352078 transitions. [2022-09-16 10:46:10,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-09-16 10:46:10,474 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:10,475 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] [2022-09-16 10:46:10,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 10:46:10,475 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:10,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:10,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1373005362, now seen corresponding path program 1 times [2022-09-16 10:46:10,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:10,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238940004] [2022-09-16 10:46:10,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:10,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:10,625 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 10:46:10,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:10,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238940004] [2022-09-16 10:46:10,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238940004] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:46:10,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728120688] [2022-09-16 10:46:10,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:10,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:46:10,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:46:10,627 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 10:46:10,628 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 10:46:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:10,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 15 conjunts are in the unsatisfiable core [2022-09-16 10:46:10,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:46:10,855 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 10:46:10,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:46:11,511 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 10:46:11,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728120688] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:46:11,511 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:46:11,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2022-09-16 10:46:11,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92470823] [2022-09-16 10:46:11,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:46:11,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-09-16 10:46:11,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:11,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-09-16 10:46:11,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2022-09-16 10:46:11,513 INFO L87 Difference]: Start difference. First operand 88358 states and 352078 transitions. Second operand has 32 states, 31 states have (on average 6.806451612903226) internal successors, (211), 32 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:32,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:32,385 INFO L93 Difference]: Finished difference Result 1320419 states and 5275816 transitions. [2022-09-16 10:46:32,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-09-16 10:46:32,386 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 6.806451612903226) internal successors, (211), 32 states have internal predecessors, (211), 0 states have call successors, (0), 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 141 [2022-09-16 10:46:32,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:49,817 INFO L225 Difference]: With dead ends: 1320419 [2022-09-16 10:46:49,818 INFO L226 Difference]: Without dead ends: 1320419 [2022-09-16 10:46:49,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1084, Invalid=2338, Unknown=0, NotChecked=0, Total=3422 [2022-09-16 10:46:49,819 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 4883 mSDsluCounter, 3287 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4883 SdHoareTripleChecker+Valid, 3381 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:49,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4883 Valid, 3381 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:46:52,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320419 states. [2022-09-16 10:47:27,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320419 to 88646. [2022-09-16 10:47:27,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88646 states, 88618 states have (on average 3.9765961768489473) internal successors, (352398), 88645 states have internal predecessors, (352398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:27,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88646 states to 88646 states and 352398 transitions. [2022-09-16 10:47:27,978 INFO L78 Accepts]: Start accepts. Automaton has 88646 states and 352398 transitions. Word has length 141 [2022-09-16 10:47:27,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:27,978 INFO L495 AbstractCegarLoop]: Abstraction has 88646 states and 352398 transitions. [2022-09-16 10:47:27,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 6.806451612903226) internal successors, (211), 32 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:27,978 INFO L276 IsEmpty]: Start isEmpty. Operand 88646 states and 352398 transitions. [2022-09-16 10:47:27,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-09-16 10:47:27,991 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:27,991 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:47:28,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-09-16 10:47:28,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:47:28,212 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:28,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:28,213 INFO L85 PathProgramCache]: Analyzing trace with hash -437552810, now seen corresponding path program 1 times [2022-09-16 10:47:28,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:28,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127162807] [2022-09-16 10:47:28,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:28,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:28,395 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-09-16 10:47:28,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:28,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127162807] [2022-09-16 10:47:28,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127162807] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:28,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:28,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 10:47:28,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323947431] [2022-09-16 10:47:28,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:28,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:47:28,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:28,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:47:28,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:47:28,398 INFO L87 Difference]: Start difference. First operand 88646 states and 352398 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:30,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:30,504 INFO L93 Difference]: Finished difference Result 120931 states and 469623 transitions. [2022-09-16 10:47:30,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-16 10:47:30,505 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 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 143 [2022-09-16 10:47:30,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:31,662 INFO L225 Difference]: With dead ends: 120931 [2022-09-16 10:47:31,663 INFO L226 Difference]: Without dead ends: 120796 [2022-09-16 10:47:31,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:47:31,663 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 404 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:31,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 804 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:47:32,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120796 states. [2022-09-16 10:47:35,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120796 to 92286. [2022-09-16 10:47:35,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92286 states, 92258 states have (on average 3.9590713000498603) internal successors, (365256), 92285 states have internal predecessors, (365256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:36,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92286 states to 92286 states and 365256 transitions. [2022-09-16 10:47:36,502 INFO L78 Accepts]: Start accepts. Automaton has 92286 states and 365256 transitions. Word has length 143 [2022-09-16 10:47:36,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:36,502 INFO L495 AbstractCegarLoop]: Abstraction has 92286 states and 365256 transitions. [2022-09-16 10:47:36,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:36,502 INFO L276 IsEmpty]: Start isEmpty. Operand 92286 states and 365256 transitions. [2022-09-16 10:47:36,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-09-16 10:47:36,511 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:36,512 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:47:36,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-16 10:47:36,512 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:36,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:36,513 INFO L85 PathProgramCache]: Analyzing trace with hash -811293357, now seen corresponding path program 1 times [2022-09-16 10:47:36,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:36,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24471544] [2022-09-16 10:47:36,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:36,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:36,625 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-09-16 10:47:36,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:36,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24471544] [2022-09-16 10:47:36,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24471544] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:36,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:36,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 10:47:36,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786038047] [2022-09-16 10:47:36,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:36,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:47:36,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:36,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:47:36,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:47:36,627 INFO L87 Difference]: Start difference. First operand 92286 states and 365256 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:38,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:38,891 INFO L93 Difference]: Finished difference Result 111483 states and 434037 transitions. [2022-09-16 10:47:38,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-16 10:47:38,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 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 146 [2022-09-16 10:47:38,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:39,974 INFO L225 Difference]: With dead ends: 111483 [2022-09-16 10:47:39,974 INFO L226 Difference]: Without dead ends: 111403 [2022-09-16 10:47:39,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:47:39,975 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 313 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:39,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 842 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:47:40,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111403 states. [2022-09-16 10:47:43,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111403 to 89279. [2022-09-16 10:47:43,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89279 states, 89251 states have (on average 3.9676754322080425) internal successors, (354119), 89278 states have internal predecessors, (354119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:44,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89279 states to 89279 states and 354119 transitions. [2022-09-16 10:47:44,416 INFO L78 Accepts]: Start accepts. Automaton has 89279 states and 354119 transitions. Word has length 146 [2022-09-16 10:47:44,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:44,417 INFO L495 AbstractCegarLoop]: Abstraction has 89279 states and 354119 transitions. [2022-09-16 10:47:44,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:44,417 INFO L276 IsEmpty]: Start isEmpty. Operand 89279 states and 354119 transitions. [2022-09-16 10:47:44,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-09-16 10:47:44,426 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:44,426 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:47:44,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 10:47:44,426 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:44,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:44,428 INFO L85 PathProgramCache]: Analyzing trace with hash 21152899, now seen corresponding path program 1 times [2022-09-16 10:47:44,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:44,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771376553] [2022-09-16 10:47:44,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:44,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:44,563 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-09-16 10:47:44,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:44,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771376553] [2022-09-16 10:47:44,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771376553] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:44,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:44,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 10:47:44,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179404868] [2022-09-16 10:47:44,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:44,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:47:44,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:44,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:47:44,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:47:44,567 INFO L87 Difference]: Start difference. First operand 89279 states and 354119 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:46,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:46,353 INFO L93 Difference]: Finished difference Result 106703 states and 416792 transitions. [2022-09-16 10:47:46,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-16 10:47:46,353 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 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 10:47:46,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:46,924 INFO L225 Difference]: With dead ends: 106703 [2022-09-16 10:47:46,924 INFO L226 Difference]: Without dead ends: 106409 [2022-09-16 10:47:46,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:47:46,925 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 419 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:46,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 921 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:47:47,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106409 states. [2022-09-16 10:47:49,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106409 to 87969. [2022-09-16 10:47:49,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87969 states, 87941 states have (on average 3.9509443831659863) internal successors, (347450), 87968 states have internal predecessors, (347450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:50,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87969 states to 87969 states and 347450 transitions. [2022-09-16 10:47:50,314 INFO L78 Accepts]: Start accepts. Automaton has 87969 states and 347450 transitions. Word has length 149 [2022-09-16 10:47:50,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:50,314 INFO L495 AbstractCegarLoop]: Abstraction has 87969 states and 347450 transitions. [2022-09-16 10:47:50,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:50,314 INFO L276 IsEmpty]: Start isEmpty. Operand 87969 states and 347450 transitions. [2022-09-16 10:47:50,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-09-16 10:47:50,321 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:50,321 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:47:50,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-09-16 10:47:50,321 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:50,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:50,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1981518659, now seen corresponding path program 1 times [2022-09-16 10:47:50,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:50,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744307832] [2022-09-16 10:47:50,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:50,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:50,404 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-09-16 10:47:50,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:50,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744307832] [2022-09-16 10:47:50,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744307832] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:50,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:50,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 10:47:50,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84027288] [2022-09-16 10:47:50,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:50,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:47:50,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:50,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:47:50,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:47:50,406 INFO L87 Difference]: Start difference. First operand 87969 states and 347450 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:51,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:51,680 INFO L93 Difference]: Finished difference Result 119842 states and 463697 transitions. [2022-09-16 10:47:51,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:47:51,681 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 0 states have call successors, (0), 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 152 [2022-09-16 10:47:51,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:52,665 INFO L225 Difference]: With dead ends: 119842 [2022-09-16 10:47:52,666 INFO L226 Difference]: Without dead ends: 119639 [2022-09-16 10:47:52,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:47:52,666 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 544 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:52,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 795 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:47:52,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119639 states. [2022-09-16 10:47:55,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119639 to 90818. [2022-09-16 10:47:55,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90818 states, 90790 states have (on average 3.9477034915739617) internal successors, (358412), 90817 states have internal predecessors, (358412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:56,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90818 states to 90818 states and 358412 transitions. [2022-09-16 10:47:56,189 INFO L78 Accepts]: Start accepts. Automaton has 90818 states and 358412 transitions. Word has length 152 [2022-09-16 10:47:56,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:56,190 INFO L495 AbstractCegarLoop]: Abstraction has 90818 states and 358412 transitions. [2022-09-16 10:47:56,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:56,190 INFO L276 IsEmpty]: Start isEmpty. Operand 90818 states and 358412 transitions. [2022-09-16 10:47:56,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-09-16 10:47:56,198 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:56,198 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:47:56,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-09-16 10:47:56,198 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:56,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:56,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1519458832, now seen corresponding path program 1 times [2022-09-16 10:47:56,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:56,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085920460] [2022-09-16 10:47:56,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:56,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:56,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:56,348 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:47:56,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:56,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085920460] [2022-09-16 10:47:56,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085920460] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:47:56,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142780301] [2022-09-16 10:47:56,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:56,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:47:56,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:47:56,350 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:47:56,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-16 10:47:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:56,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-16 10:47:56,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:47:56,887 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:47:56,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:47:57,221 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:47:57,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142780301] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:47:57,222 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:47:57,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2022-09-16 10:47:57,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043873215] [2022-09-16 10:47:57,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:47:57,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-09-16 10:47:57,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:57,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-09-16 10:47:57,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=640, Unknown=0, NotChecked=0, Total=756 [2022-09-16 10:47:57,224 INFO L87 Difference]: Start difference. First operand 90818 states and 358412 transitions. Second operand has 28 states, 28 states have (on average 13.214285714285714) internal successors, (370), 28 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:02,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:02,700 INFO L93 Difference]: Finished difference Result 322104 states and 1236580 transitions. [2022-09-16 10:48:02,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-09-16 10:48:02,700 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 13.214285714285714) internal successors, (370), 28 states have internal predecessors, (370), 0 states have call successors, (0), 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 10:48:02,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:05,252 INFO L225 Difference]: With dead ends: 322104 [2022-09-16 10:48:05,252 INFO L226 Difference]: Without dead ends: 317784 [2022-09-16 10:48:05,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 292 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3446 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1543, Invalid=8963, Unknown=0, NotChecked=0, Total=10506 [2022-09-16 10:48:05,255 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 8066 mSDsluCounter, 4750 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8066 SdHoareTripleChecker+Valid, 4844 SdHoareTripleChecker+Invalid, 1251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:05,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8066 Valid, 4844 Invalid, 1251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:48:06,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317784 states. [2022-09-16 10:48:11,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317784 to 127523. [2022-09-16 10:48:12,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127523 states, 127495 states have (on average 3.9712302443233067) internal successors, (506312), 127522 states have internal predecessors, (506312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:13,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127523 states to 127523 states and 506312 transitions. [2022-09-16 10:48:13,371 INFO L78 Accepts]: Start accepts. Automaton has 127523 states and 506312 transitions. Word has length 155 [2022-09-16 10:48:13,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:13,372 INFO L495 AbstractCegarLoop]: Abstraction has 127523 states and 506312 transitions. [2022-09-16 10:48:13,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 13.214285714285714) internal successors, (370), 28 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:13,372 INFO L276 IsEmpty]: Start isEmpty. Operand 127523 states and 506312 transitions. [2022-09-16 10:48:13,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-09-16 10:48:13,381 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:13,381 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:48:13,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-16 10:48:13,581 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,SelfDestructingSolverStorable13 [2022-09-16 10:48:13,582 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:13,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:13,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1709636469, now seen corresponding path program 1 times [2022-09-16 10:48:13,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:13,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255548774] [2022-09-16 10:48:13,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:13,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:13,658 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-09-16 10:48:13,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:13,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255548774] [2022-09-16 10:48:13,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255548774] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:13,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:13,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 10:48:13,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684764248] [2022-09-16 10:48:13,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:13,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:48:13,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:13,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:48:13,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:48:13,660 INFO L87 Difference]: Start difference. First operand 127523 states and 506312 transitions. Second operand has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 7 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:16,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:16,370 INFO L93 Difference]: Finished difference Result 150462 states and 590057 transitions. [2022-09-16 10:48:16,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:48:16,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 7 states have internal predecessors, (152), 0 states have call successors, (0), 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 158 [2022-09-16 10:48:16,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:17,707 INFO L225 Difference]: With dead ends: 150462 [2022-09-16 10:48:17,707 INFO L226 Difference]: Without dead ends: 149647 [2022-09-16 10:48:17,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:48:17,708 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 452 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:17,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 856 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:48:18,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149647 states. [2022-09-16 10:48:21,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149647 to 124850. [2022-09-16 10:48:21,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124850 states, 124822 states have (on average 3.965943503549054) internal successors, (495037), 124849 states have internal predecessors, (495037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:22,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124850 states to 124850 states and 495037 transitions. [2022-09-16 10:48:22,989 INFO L78 Accepts]: Start accepts. Automaton has 124850 states and 495037 transitions. Word has length 158 [2022-09-16 10:48:22,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:22,989 INFO L495 AbstractCegarLoop]: Abstraction has 124850 states and 495037 transitions. [2022-09-16 10:48:22,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 7 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:22,989 INFO L276 IsEmpty]: Start isEmpty. Operand 124850 states and 495037 transitions. [2022-09-16 10:48:22,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-09-16 10:48:22,998 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:22,999 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:48:22,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-09-16 10:48:23,000 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:23,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:23,001 INFO L85 PathProgramCache]: Analyzing trace with hash 364624468, now seen corresponding path program 1 times [2022-09-16 10:48:23,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:23,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809860699] [2022-09-16 10:48:23,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:23,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:23,128 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:48:23,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:23,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809860699] [2022-09-16 10:48:23,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809860699] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:48:23,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855186297] [2022-09-16 10:48:23,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:23,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:48:23,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:48:23,132 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:48:23,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 10:48:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:23,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-16 10:48:23,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:48:23,647 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:48:23,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:48:23,961 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:48:23,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855186297] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:48:23,961 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:48:23,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2022-09-16 10:48:23,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769513642] [2022-09-16 10:48:23,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:48:23,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-09-16 10:48:23,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:23,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-09-16 10:48:23,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=640, Unknown=0, NotChecked=0, Total=756 [2022-09-16 10:48:23,963 INFO L87 Difference]: Start difference. First operand 124850 states and 495037 transitions. Second operand has 28 states, 28 states have (on average 14.142857142857142) internal successors, (396), 28 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:29,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:29,206 INFO L93 Difference]: Finished difference Result 330128 states and 1270249 transitions. [2022-09-16 10:48:29,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-09-16 10:48:29,207 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 14.142857142857142) internal successors, (396), 28 states have internal predecessors, (396), 0 states have call successors, (0), 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 161 [2022-09-16 10:48:29,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:31,695 INFO L225 Difference]: With dead ends: 330128 [2022-09-16 10:48:31,695 INFO L226 Difference]: Without dead ends: 315701 [2022-09-16 10:48:31,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 304 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1856 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1201, Invalid=5605, Unknown=0, NotChecked=0, Total=6806 [2022-09-16 10:48:31,697 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 5275 mSDsluCounter, 5972 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5275 SdHoareTripleChecker+Valid, 6064 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:31,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5275 Valid, 6064 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:48:32,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315701 states. [2022-09-16 10:48:39,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315701 to 174618. [2022-09-16 10:48:40,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174618 states, 174590 states have (on average 3.983727590354545) internal successors, (695519), 174617 states have internal predecessors, (695519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:41,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174618 states to 174618 states and 695519 transitions. [2022-09-16 10:48:41,717 INFO L78 Accepts]: Start accepts. Automaton has 174618 states and 695519 transitions. Word has length 161 [2022-09-16 10:48:41,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:41,717 INFO L495 AbstractCegarLoop]: Abstraction has 174618 states and 695519 transitions. [2022-09-16 10:48:41,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 14.142857142857142) internal successors, (396), 28 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:41,717 INFO L276 IsEmpty]: Start isEmpty. Operand 174618 states and 695519 transitions. [2022-09-16 10:48:41,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-09-16 10:48:41,730 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:41,730 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2022-09-16 10:48:41,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-16 10:48:41,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-09-16 10:48:41,932 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:41,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:41,932 INFO L85 PathProgramCache]: Analyzing trace with hash -95819386, now seen corresponding path program 1 times [2022-09-16 10:48:41,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:41,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50665097] [2022-09-16 10:48:41,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:41,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:42,050 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:48:42,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:42,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50665097] [2022-09-16 10:48:42,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50665097] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:48:42,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792069152] [2022-09-16 10:48:42,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:42,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:48:42,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:48:42,052 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:48:42,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 10:48:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:42,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-16 10:48:42,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:48:42,513 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:48:42,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:48:42,828 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:48:42,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792069152] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:48:42,828 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:48:42,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2022-09-16 10:48:42,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897528775] [2022-09-16 10:48:42,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:48:42,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-09-16 10:48:42,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:42,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-09-16 10:48:42,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=640, Unknown=0, NotChecked=0, Total=756 [2022-09-16 10:48:42,832 INFO L87 Difference]: Start difference. First operand 174618 states and 695519 transitions. Second operand has 28 states, 28 states have (on average 13.464285714285714) internal successors, (377), 28 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:47,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:47,538 INFO L93 Difference]: Finished difference Result 255123 states and 973453 transitions. [2022-09-16 10:48:47,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-09-16 10:48:47,538 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 13.464285714285714) internal successors, (377), 28 states have internal predecessors, (377), 0 states have call successors, (0), 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 167 [2022-09-16 10:48:47,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:48,806 INFO L225 Difference]: With dead ends: 255123 [2022-09-16 10:48:48,807 INFO L226 Difference]: Without dead ends: 205929 [2022-09-16 10:48:48,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 316 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2021 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1136, Invalid=6004, Unknown=0, NotChecked=0, Total=7140 [2022-09-16 10:48:48,808 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 7011 mSDsluCounter, 4965 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7011 SdHoareTripleChecker+Valid, 5125 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:48,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7011 Valid, 5125 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:48:49,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205929 states. [2022-09-16 10:48:56,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205929 to 165430. [2022-09-16 10:48:57,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165430 states, 165402 states have (on average 3.8836773436838734) internal successors, (642368), 165429 states have internal predecessors, (642368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:58,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165430 states to 165430 states and 642368 transitions. [2022-09-16 10:48:58,284 INFO L78 Accepts]: Start accepts. Automaton has 165430 states and 642368 transitions. Word has length 167 [2022-09-16 10:48:58,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:58,284 INFO L495 AbstractCegarLoop]: Abstraction has 165430 states and 642368 transitions. [2022-09-16 10:48:58,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 13.464285714285714) internal successors, (377), 28 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:58,284 INFO L276 IsEmpty]: Start isEmpty. Operand 165430 states and 642368 transitions. [2022-09-16 10:48:58,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-09-16 10:48:58,289 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:58,290 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-09-16 10:48:58,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-09-16 10:48:58,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:48:58,490 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:58,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:58,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1151841515, now seen corresponding path program 2 times [2022-09-16 10:48:58,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:58,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498067614] [2022-09-16 10:48:58,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:58,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:58,567 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-09-16 10:48:58,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:58,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498067614] [2022-09-16 10:48:58,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498067614] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:48:58,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986025622] [2022-09-16 10:48:58,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:48:58,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:48:58,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:48:58,569 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 10:48:58,571 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 10:48:58,671 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:48:58,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:48:58,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:48:58,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:48:58,820 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-09-16 10:48:58,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:48:58,961 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-09-16 10:48:58,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986025622] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:48:58,962 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:48:58,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-09-16 10:48:58,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412639971] [2022-09-16 10:48:58,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:48:58,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-16 10:48:58,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:58,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-16 10:48:58,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:48:58,963 INFO L87 Difference]: Start difference. First operand 165430 states and 642368 transitions. Second operand has 10 states, 9 states have (on average 33.22222222222222) internal successors, (299), 10 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:02,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:02,726 INFO L93 Difference]: Finished difference Result 279944 states and 1078708 transitions. [2022-09-16 10:49:02,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 10:49:02,729 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 33.22222222222222) internal successors, (299), 10 states have internal predecessors, (299), 0 states have call successors, (0), 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 10:49:02,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:05,071 INFO L225 Difference]: With dead ends: 279944 [2022-09-16 10:49:05,072 INFO L226 Difference]: Without dead ends: 279944 [2022-09-16 10:49:05,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 339 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2022-09-16 10:49:05,077 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 1754 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:05,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 1015 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:49:05,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279944 states. [2022-09-16 10:49:11,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279944 to 161152. [2022-09-16 10:49:12,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161152 states, 161133 states have (on average 3.8833199903185567) internal successors, (625731), 161151 states have internal predecessors, (625731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:13,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161152 states to 161152 states and 625731 transitions. [2022-09-16 10:49:13,445 INFO L78 Accepts]: Start accepts. Automaton has 161152 states and 625731 transitions. Word has length 173 [2022-09-16 10:49:13,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:13,446 INFO L495 AbstractCegarLoop]: Abstraction has 161152 states and 625731 transitions. [2022-09-16 10:49:13,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 33.22222222222222) internal successors, (299), 10 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:13,446 INFO L276 IsEmpty]: Start isEmpty. Operand 161152 states and 625731 transitions. [2022-09-16 10:49:13,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-09-16 10:49:13,452 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:13,452 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-09-16 10:49:13,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-09-16 10:49:13,658 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,SelfDestructingSolverStorable17 [2022-09-16 10:49:13,659 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:13,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:13,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1347349424, now seen corresponding path program 1 times [2022-09-16 10:49:13,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:13,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171377768] [2022-09-16 10:49:13,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:13,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:13,720 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-09-16 10:49:13,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:13,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171377768] [2022-09-16 10:49:13,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171377768] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:49:13,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478654837] [2022-09-16 10:49:13,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:13,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:49:13,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:49:13,722 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 10:49:13,723 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 10:49:14,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:14,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:49:14,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:49:14,435 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-09-16 10:49:14,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:49:14,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478654837] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:14,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:49:14,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:49:14,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222784376] [2022-09-16 10:49:14,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:14,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:49:14,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:14,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:49:14,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:49:14,437 INFO L87 Difference]: Start difference. First operand 161152 states and 625731 transitions. Second operand has 6 states, 5 states have (on average 31.2) internal successors, (156), 6 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:17,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:17,189 INFO L93 Difference]: Finished difference Result 191824 states and 736246 transitions. [2022-09-16 10:49:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:49:17,203 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 31.2) internal successors, (156), 6 states have internal predecessors, (156), 0 states have call successors, (0), 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 174 [2022-09-16 10:49:17,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:18,930 INFO L225 Difference]: With dead ends: 191824 [2022-09-16 10:49:18,930 INFO L226 Difference]: Without dead ends: 163338 [2022-09-16 10:49:18,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:49:18,937 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 308 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:18,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 1009 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:49:19,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163338 states. [2022-09-16 10:49:22,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163338 to 104120. [2022-09-16 10:49:23,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104120 states, 104110 states have (on average 3.8229756987801364) internal successors, (398010), 104119 states have internal predecessors, (398010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:24,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104120 states to 104120 states and 398010 transitions. [2022-09-16 10:49:24,079 INFO L78 Accepts]: Start accepts. Automaton has 104120 states and 398010 transitions. Word has length 174 [2022-09-16 10:49:24,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:24,079 INFO L495 AbstractCegarLoop]: Abstraction has 104120 states and 398010 transitions. [2022-09-16 10:49:24,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 31.2) internal successors, (156), 6 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:24,079 INFO L276 IsEmpty]: Start isEmpty. Operand 104120 states and 398010 transitions. [2022-09-16 10:49:24,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-09-16 10:49:24,087 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:24,087 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-09-16 10:49:24,105 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 10:49:24,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:49:24,293 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:24,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:24,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1606152106, now seen corresponding path program 2 times [2022-09-16 10:49:24,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:24,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268084731] [2022-09-16 10:49:24,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:24,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:24,364 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-09-16 10:49:24,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:24,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268084731] [2022-09-16 10:49:24,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268084731] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:49:24,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693380976] [2022-09-16 10:49:24,364 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:49:24,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:49:24,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:49:24,366 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 10:49:24,367 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 10:49:24,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:49:24,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:49:24,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:49:24,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:49:24,656 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-09-16 10:49:24,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:49:24,826 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-09-16 10:49:24,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693380976] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:49:24,827 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:49:24,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-09-16 10:49:24,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420045898] [2022-09-16 10:49:24,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:49:24,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-16 10:49:24,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:24,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-16 10:49:24,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:49:24,829 INFO L87 Difference]: Start difference. First operand 104120 states and 398010 transitions. Second operand has 10 states, 9 states have (on average 34.44444444444444) internal successors, (310), 10 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:26,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:26,716 INFO L93 Difference]: Finished difference Result 172276 states and 655402 transitions. [2022-09-16 10:49:26,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 10:49:26,716 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 34.44444444444444) internal successors, (310), 10 states have internal predecessors, (310), 0 states have call successors, (0), 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 10:49:26,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:28,038 INFO L225 Difference]: With dead ends: 172276 [2022-09-16 10:49:28,039 INFO L226 Difference]: Without dead ends: 172276 [2022-09-16 10:49:28,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 351 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2022-09-16 10:49:28,039 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 1179 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:28,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 1388 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:49:28,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172276 states. [2022-09-16 10:49:31,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172276 to 100997. [2022-09-16 10:49:31,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100997 states, 100990 states have (on average 3.8227151203089416) internal successors, (386056), 100996 states have internal predecessors, (386056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:32,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100997 states to 100997 states and 386056 transitions. [2022-09-16 10:49:32,814 INFO L78 Accepts]: Start accepts. Automaton has 100997 states and 386056 transitions. Word has length 179 [2022-09-16 10:49:32,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:32,815 INFO L495 AbstractCegarLoop]: Abstraction has 100997 states and 386056 transitions. [2022-09-16 10:49:32,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 34.44444444444444) internal successors, (310), 10 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:32,815 INFO L276 IsEmpty]: Start isEmpty. Operand 100997 states and 386056 transitions. [2022-09-16 10:49:32,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-09-16 10:49:32,825 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:32,826 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-09-16 10:49:32,843 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 10:49:33,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:49:33,029 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:33,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:33,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1748893113, now seen corresponding path program 1 times [2022-09-16 10:49:33,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:33,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999221177] [2022-09-16 10:49:33,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:33,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:33,105 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-09-16 10:49:33,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:33,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999221177] [2022-09-16 10:49:33,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999221177] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:49:33,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573829235] [2022-09-16 10:49:33,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:33,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:49:33,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:49:33,108 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 10:49:33,135 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 10:49:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:33,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:49:33,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:49:33,405 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-09-16 10:49:33,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:49:33,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573829235] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:33,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:49:33,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:49:33,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901397234] [2022-09-16 10:49:33,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:33,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:49:33,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:33,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:49:33,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:49:33,407 INFO L87 Difference]: Start difference. First operand 100997 states and 386056 transitions. Second operand has 6 states, 5 states have (on average 32.4) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:34,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:34,479 INFO L93 Difference]: Finished difference Result 115862 states and 439332 transitions. [2022-09-16 10:49:34,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:49:34,480 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 32.4) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 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 180 [2022-09-16 10:49:34,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:34,830 INFO L225 Difference]: With dead ends: 115862 [2022-09-16 10:49:34,830 INFO L226 Difference]: Without dead ends: 81552 [2022-09-16 10:49:34,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:49:34,831 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 277 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:34,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 964 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:49:35,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81552 states. [2022-09-16 10:49:36,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81552 to 52066. [2022-09-16 10:49:36,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52066 states, 52062 states have (on average 3.7561753294149285) internal successors, (195554), 52065 states have internal predecessors, (195554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:37,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52066 states to 52066 states and 195554 transitions. [2022-09-16 10:49:37,072 INFO L78 Accepts]: Start accepts. Automaton has 52066 states and 195554 transitions. Word has length 180 [2022-09-16 10:49:37,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:37,073 INFO L495 AbstractCegarLoop]: Abstraction has 52066 states and 195554 transitions. [2022-09-16 10:49:37,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 32.4) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:37,073 INFO L276 IsEmpty]: Start isEmpty. Operand 52066 states and 195554 transitions. [2022-09-16 10:49:37,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-09-16 10:49:37,085 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:37,085 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-09-16 10:49:37,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-09-16 10:49:37,291 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,SelfDestructingSolverStorable20 [2022-09-16 10:49:37,292 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:37,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:37,292 INFO L85 PathProgramCache]: Analyzing trace with hash 379939299, now seen corresponding path program 2 times [2022-09-16 10:49:37,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:37,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291108092] [2022-09-16 10:49:37,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:37,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:37,363 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-09-16 10:49:37,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:37,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291108092] [2022-09-16 10:49:37,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291108092] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:49:37,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205148242] [2022-09-16 10:49:37,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:49:37,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:49:37,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:49:37,365 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 10:49:37,366 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 10:49:37,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:49:37,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:49:37,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:49:37,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:49:37,632 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-09-16 10:49:37,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:49:37,775 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-09-16 10:49:37,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205148242] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:49:37,775 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:49:37,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-09-16 10:49:37,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429072936] [2022-09-16 10:49:37,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:49:37,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-16 10:49:37,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:37,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-16 10:49:37,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:49:37,777 INFO L87 Difference]: Start difference. First operand 52066 states and 195554 transitions. Second operand has 10 states, 9 states have (on average 35.666666666666664) internal successors, (321), 10 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:38,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:38,659 INFO L93 Difference]: Finished difference Result 82404 states and 312748 transitions. [2022-09-16 10:49:38,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 10:49:38,660 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 35.666666666666664) internal successors, (321), 10 states have internal predecessors, (321), 0 states have call successors, (0), 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 10:49:38,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:39,003 INFO L225 Difference]: With dead ends: 82404 [2022-09-16 10:49:39,003 INFO L226 Difference]: Without dead ends: 82404 [2022-09-16 10:49:39,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 363 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2022-09-16 10:49:39,004 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1245 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:39,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1245 Valid, 1290 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:49:39,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82404 states. [2022-09-16 10:49:40,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82404 to 49899. [2022-09-16 10:49:40,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49899 states, 49896 states have (on average 3.75146304312971) internal successors, (187183), 49898 states have internal predecessors, (187183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:41,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49899 states to 49899 states and 187183 transitions. [2022-09-16 10:49:41,050 INFO L78 Accepts]: Start accepts. Automaton has 49899 states and 187183 transitions. Word has length 185 [2022-09-16 10:49:41,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:41,051 INFO L495 AbstractCegarLoop]: Abstraction has 49899 states and 187183 transitions. [2022-09-16 10:49:41,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 35.666666666666664) internal successors, (321), 10 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:41,051 INFO L276 IsEmpty]: Start isEmpty. Operand 49899 states and 187183 transitions. [2022-09-16 10:49:41,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-09-16 10:49:41,085 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:41,085 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-09-16 10:49:41,111 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 10:49:41,311 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,SelfDestructingSolverStorable21 [2022-09-16 10:49:41,312 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:41,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:41,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1106782752, now seen corresponding path program 1 times [2022-09-16 10:49:41,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:41,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577181179] [2022-09-16 10:49:41,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:41,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:41,376 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-09-16 10:49:41,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:41,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577181179] [2022-09-16 10:49:41,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577181179] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:49:41,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223301245] [2022-09-16 10:49:41,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:41,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:49:41,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:49:41,378 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 10:49:41,380 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 10:49:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:41,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:49:41,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:49:41,692 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-09-16 10:49:41,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:49:41,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223301245] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:41,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:49:41,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:49:41,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043632385] [2022-09-16 10:49:41,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:41,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:49:41,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:41,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:49:41,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:49:41,694 INFO L87 Difference]: Start difference. First operand 49899 states and 187183 transitions. Second operand has 6 states, 5 states have (on average 33.6) internal successors, (168), 6 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 10:49:42,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:42,032 INFO L93 Difference]: Finished difference Result 52066 states and 195554 transitions. [2022-09-16 10:49:42,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:49:42,032 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 33.6) internal successors, (168), 6 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 186 [2022-09-16 10:49:42,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:42,033 INFO L225 Difference]: With dead ends: 52066 [2022-09-16 10:49:42,033 INFO L226 Difference]: Without dead ends: 1023 [2022-09-16 10:49:42,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:49:42,034 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 234 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:42,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 894 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:49:42,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2022-09-16 10:49:42,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 381. [2022-09-16 10:49:42,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 379 states have (on average 1.0474934036939314) internal successors, (397), 380 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:42,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 397 transitions. [2022-09-16 10:49:42,040 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 397 transitions. Word has length 186 [2022-09-16 10:49:42,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:42,040 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 397 transitions. [2022-09-16 10:49:42,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 33.6) internal successors, (168), 6 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 10:49:42,040 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 397 transitions. [2022-09-16 10:49:42,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-09-16 10:49:42,041 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:42,041 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:49:42,062 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 10:49:42,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-09-16 10:49:42,250 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:42,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:42,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1862402226, now seen corresponding path program 2 times [2022-09-16 10:49:42,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:42,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656553944] [2022-09-16 10:49:42,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:42,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:42,921 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:42,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:42,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656553944] [2022-09-16 10:49:42,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656553944] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:49:42,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865451139] [2022-09-16 10:49:42,921 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:49:42,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:49:42,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:49:42,923 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 10:49:42,923 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 10:49:43,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:49:43,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:49:43,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 10:49:43,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:49:43,260 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2022-09-16 10:49:43,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:49:43,481 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2022-09-16 10:49:43,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865451139] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:49:43,481 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:49:43,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 7, 7] total 37 [2022-09-16 10:49:43,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225222553] [2022-09-16 10:49:43,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:49:43,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-09-16 10:49:43,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:43,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-09-16 10:49:43,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=1093, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:49:43,484 INFO L87 Difference]: Start difference. First operand 381 states and 397 transitions. Second operand has 38 states, 37 states have (on average 7.621621621621622) internal successors, (282), 38 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:45,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:45,920 INFO L93 Difference]: Finished difference Result 844 states and 878 transitions. [2022-09-16 10:49:45,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-09-16 10:49:45,920 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 7.621621621621622) internal successors, (282), 38 states have internal predecessors, (282), 0 states have call successors, (0), 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 213 [2022-09-16 10:49:45,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:45,922 INFO L225 Difference]: With dead ends: 844 [2022-09-16 10:49:45,922 INFO L226 Difference]: Without dead ends: 844 [2022-09-16 10:49:45,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 448 SyntacticMatches, 5 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8248 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=5716, Invalid=17846, Unknown=0, NotChecked=0, Total=23562 [2022-09-16 10:49:45,928 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 2924 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2924 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:45,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2924 Valid, 1814 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:49:45,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2022-09-16 10:49:45,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 275. [2022-09-16 10:49:45,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 274 states have (on average 1.010948905109489) internal successors, (277), 274 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:45,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 277 transitions. [2022-09-16 10:49:45,932 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 277 transitions. Word has length 213 [2022-09-16 10:49:45,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:45,932 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 277 transitions. [2022-09-16 10:49:45,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 7.621621621621622) internal successors, (282), 38 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:45,932 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 277 transitions. [2022-09-16 10:49:45,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-09-16 10:49:45,933 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:45,933 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:49:45,950 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 10:49:46,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:49:46,134 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:46,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:46,134 INFO L85 PathProgramCache]: Analyzing trace with hash -2129658241, now seen corresponding path program 1 times [2022-09-16 10:49:46,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:46,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901431828] [2022-09-16 10:49:46,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:46,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:46,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:46,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:46,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901431828] [2022-09-16 10:49:46,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901431828] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:49:46,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360435706] [2022-09-16 10:49:46,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:46,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:49:46,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:49:46,724 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 10:49:46,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process