/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-08 15:59:58,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-08 15:59:58,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-08 15:59:58,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-08 15:59:58,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-08 15:59:58,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-08 15:59:58,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-08 15:59:58,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-08 15:59:58,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-08 15:59:58,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-08 15:59:58,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-08 15:59:58,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-08 15:59:58,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-08 15:59:58,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-08 15:59:58,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-08 15:59:58,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-08 15:59:58,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-08 15:59:58,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-08 15:59:58,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-08 15:59:58,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-08 15:59:58,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-08 15:59:58,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-08 15:59:58,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-08 15:59:58,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-08 15:59:58,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-08 15:59:58,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-08 15:59:58,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-08 15:59:58,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-08 15:59:58,557 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-08 15:59:58,612 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-08 15:59:58,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-08 15:59:58,614 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-08 15:59:58,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-08 15:59:58,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-08 15:59:58,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-08 15:59:58,618 INFO L138 SettingsManager]: * Use SBE=true [2021-10-08 15:59:58,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-08 15:59:58,619 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-08 15:59:58,620 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-08 15:59:58,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-08 15:59:58,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-08 15:59:58,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-08 15:59:58,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-08 15:59:58,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-08 15:59:58,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-08 15:59:58,622 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-08 15:59:58,622 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-08 15:59:58,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-08 15:59:58,623 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-08 15:59:58,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-08 15:59:58,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-08 15:59:58,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-08 15:59:58,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-08 15:59:58,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 15:59:58,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-08 15:59:58,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-08 15:59:58,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-08 15:59:58,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-08 15:59:58,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-08 15:59:58,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-08 15:59:58,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-08 15:59:58,626 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-08 15:59:59,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-08 15:59:59,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-08 15:59:59,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-08 15:59:59,040 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-08 15:59:59,040 INFO L275 PluginConnector]: CDTParser initialized [2021-10-08 15:59:59,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2021-10-08 15:59:59,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90f42c65a/99962c33bbbe44a9bb7883b8ecab2cc4/FLAGec722a65f [2021-10-08 15:59:59,686 INFO L306 CDTParser]: Found 1 translation units. [2021-10-08 15:59:59,687 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2021-10-08 15:59:59,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90f42c65a/99962c33bbbe44a9bb7883b8ecab2cc4/FLAGec722a65f [2021-10-08 16:00:00,054 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90f42c65a/99962c33bbbe44a9bb7883b8ecab2cc4 [2021-10-08 16:00:00,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-08 16:00:00,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-08 16:00:00,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-08 16:00:00,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-08 16:00:00,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-08 16:00:00,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 04:00:00" (1/1) ... [2021-10-08 16:00:00,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e86644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:00, skipping insertion in model container [2021-10-08 16:00:00,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 04:00:00" (1/1) ... [2021-10-08 16:00:00,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-08 16:00:00,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-08 16:00:00,325 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[2952,2965] [2021-10-08 16:00:00,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 16:00:00,341 INFO L203 MainTranslator]: Completed pre-run [2021-10-08 16:00:00,378 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[2952,2965] [2021-10-08 16:00:00,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 16:00:00,401 INFO L208 MainTranslator]: Completed translation [2021-10-08 16:00:00,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:00 WrapperNode [2021-10-08 16:00:00,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-08 16:00:00,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-08 16:00:00,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-08 16:00:00,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-08 16:00:00,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:00" (1/1) ... [2021-10-08 16:00:00,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:00" (1/1) ... [2021-10-08 16:00:00,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-08 16:00:00,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-08 16:00:00,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-08 16:00:00,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-08 16:00:00,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:00" (1/1) ... [2021-10-08 16:00:00,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:00" (1/1) ... [2021-10-08 16:00:00,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:00" (1/1) ... [2021-10-08 16:00:00,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:00" (1/1) ... [2021-10-08 16:00:00,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:00" (1/1) ... [2021-10-08 16:00:00,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:00" (1/1) ... [2021-10-08 16:00:00,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:00" (1/1) ... [2021-10-08 16:00:00,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-08 16:00:00,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-08 16:00:00,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-08 16:00:00,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-08 16:00:00,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:00" (1/1) ... [2021-10-08 16:00:00,522 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 16:00:00,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:00,550 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-08 16:00:00,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-08 16:00:00,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-08 16:00:00,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-08 16:00:00,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-08 16:00:00,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-08 16:00:00,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-08 16:00:00,633 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-08 16:00:00,633 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-08 16:00:00,634 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-08 16:00:00,634 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-08 16:00:00,634 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-08 16:00:00,634 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-08 16:00:00,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-08 16:00:00,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-08 16:00:00,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-08 16:00:00,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-08 16:00:00,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-08 16:00:00,638 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-08 16:00:01,387 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-08 16:00:01,388 INFO L299 CfgBuilder]: Removed 41 assume(true) statements. [2021-10-08 16:00:01,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:00:01 BoogieIcfgContainer [2021-10-08 16:00:01,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-08 16:00:01,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-08 16:00:01,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-08 16:00:01,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-08 16:00:01,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.10 04:00:00" (1/3) ... [2021-10-08 16:00:01,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b0c007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 04:00:01, skipping insertion in model container [2021-10-08 16:00:01,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:00:00" (2/3) ... [2021-10-08 16:00:01,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b0c007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 04:00:01, skipping insertion in model container [2021-10-08 16:00:01,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:00:01" (3/3) ... [2021-10-08 16:00:01,407 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2021-10-08 16:00:01,414 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-08 16:00:01,415 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-08 16:00:01,415 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-10-08 16:00:01,415 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-08 16:00:01,520 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,520 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,521 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,521 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,522 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,522 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,522 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,522 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,524 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,525 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,525 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,525 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,525 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,525 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,526 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,528 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,529 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,530 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,532 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,532 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,532 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,533 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,533 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,533 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,533 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,533 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,533 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,534 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,534 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,534 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,534 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,534 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,535 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,535 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,535 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,535 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,535 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,535 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,536 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,536 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,536 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,536 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,537 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,537 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,537 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,537 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,539 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,539 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,540 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,541 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,541 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,541 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,542 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,542 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,542 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,543 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,543 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,543 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,543 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,543 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,546 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,547 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,547 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,547 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,547 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,547 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,548 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,548 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,549 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,549 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,550 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,555 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,555 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,555 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem13.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,556 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem13.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,556 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,556 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem13.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,556 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem13.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,556 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,556 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,557 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,557 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,557 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem13.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,557 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem13.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,557 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,558 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,558 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem13.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,563 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem13.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,563 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,563 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,563 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,564 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,564 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,564 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,564 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,564 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,564 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,564 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,565 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,566 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,566 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,566 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,566 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem13.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,567 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem13.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,567 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem13.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,567 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem13.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,567 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,567 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,567 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,568 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,568 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,568 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,568 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,568 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,568 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,569 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,569 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,569 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,569 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,569 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,569 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,570 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,571 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,571 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,571 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,572 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,572 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,572 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,574 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,574 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,574 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,575 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,575 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,575 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,575 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,575 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,575 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,576 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,576 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,576 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,576 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,576 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,576 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,577 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,577 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,577 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,577 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,577 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,577 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,578 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,578 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,578 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,578 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,578 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,578 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,580 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,580 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,580 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,580 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,581 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,581 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,581 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,581 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,581 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,583 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,583 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,583 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,583 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,583 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,583 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,584 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,584 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,584 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,584 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,584 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,584 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,585 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,585 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,585 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,585 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,585 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,585 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,586 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,586 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,587 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,587 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,588 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,596 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,596 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,596 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,597 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,598 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,598 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,599 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,599 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,599 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,599 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,599 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,599 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,600 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,607 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,607 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,607 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,608 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,608 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,608 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,608 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,608 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,608 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,608 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,609 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem25.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,609 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem25.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,609 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,609 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem25.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,609 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem25.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,609 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,610 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,610 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,610 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,610 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,610 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem25.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,610 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem25.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,610 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,611 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,614 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem25.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,614 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem25.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,614 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,614 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,615 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,615 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,615 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,615 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,615 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,615 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,616 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,616 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,616 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,616 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,616 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,617 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem25.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,617 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem25.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,619 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem25.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,619 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem25.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,619 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,619 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,619 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,620 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,620 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,620 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,620 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,620 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,620 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,622 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,624 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,624 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,625 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,625 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,625 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,625 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,626 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,626 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,626 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,627 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,627 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,628 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,628 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,628 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,628 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,628 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,628 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,629 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,629 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,629 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,629 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,629 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,629 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,630 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,630 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,630 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,631 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,631 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,631 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,631 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,632 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,632 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,632 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,632 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,632 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,632 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,632 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,633 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,633 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,633 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,633 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,633 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,633 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,634 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,634 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,634 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,634 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,634 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,634 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,639 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,639 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,639 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,639 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,640 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,642 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,642 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,642 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,643 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,643 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,643 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,643 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,643 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,643 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,644 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,644 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,646 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,646 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,646 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,646 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,646 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,647 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,647 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,647 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,647 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,647 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,647 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,647 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,648 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,648 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,648 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,648 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,648 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,648 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,649 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,650 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,650 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,650 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,650 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,650 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,651 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,651 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,651 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,651 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,652 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,652 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,652 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,652 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,652 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,652 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,652 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,653 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,653 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem37.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,653 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem37.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,655 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,655 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem37.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,655 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem37.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,655 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,655 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,655 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,656 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,656 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem37.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,656 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,656 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem37.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,656 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,656 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem37.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,656 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,657 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem37.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,657 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,657 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,657 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,657 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,657 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,657 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,658 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,658 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,658 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,666 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,667 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,667 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,667 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,667 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem37.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,668 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem37.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,668 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem37.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,668 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem37.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,668 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,668 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,668 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,668 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,669 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,669 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,669 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,669 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,669 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,669 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,669 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,670 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,670 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,670 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,670 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,670 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,670 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,671 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,671 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,671 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,671 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,671 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,676 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,677 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,677 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem37.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,677 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,677 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,678 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,678 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,678 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,678 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,678 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,679 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,679 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,679 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,679 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,679 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,679 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,679 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem37.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,680 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,688 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,689 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,689 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem13.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,689 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,689 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,689 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,690 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,690 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,690 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,690 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,690 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,690 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,691 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,691 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,691 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,691 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,691 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,691 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem13.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,694 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem25.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,695 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,696 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,696 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,696 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,696 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,696 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,696 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem25.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,697 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,697 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,697 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,697 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,697 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:00:01,725 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-08 16:00:01,790 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-08 16:00:01,798 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-08 16:00:01,798 INFO L340 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2021-10-08 16:00:01,820 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-08 16:00:01,834 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 356 places, 381 transitions, 786 flow [2021-10-08 16:00:01,838 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 356 places, 381 transitions, 786 flow [2021-10-08 16:00:01,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 356 places, 381 transitions, 786 flow [2021-10-08 16:00:02,007 INFO L129 PetriNetUnfolder]: 35/378 cut-off events. [2021-10-08 16:00:02,008 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-08 16:00:02,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 391 conditions, 378 events. 35/378 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 888 event pairs, 0 based on Foata normal form. 0/323 useless extension candidates. Maximal degree in co-relation 299. Up to 2 conditions per place. [2021-10-08 16:00:02,041 INFO L116 LiptonReduction]: Number of co-enabled transitions 22110 [2021-10-08 16:00:18,193 INFO L131 LiptonReduction]: Checked pairs total: 40592 [2021-10-08 16:00:18,193 INFO L133 LiptonReduction]: Total number of compositions: 433 [2021-10-08 16:00:18,204 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 76 transitions, 176 flow [2021-10-08 16:00:18,472 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5120 states, 4988 states have (on average 3.7516038492381716) internal successors, (18713), 5119 states have internal predecessors, (18713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:18,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 5120 states, 4988 states have (on average 3.7516038492381716) internal successors, (18713), 5119 states have internal predecessors, (18713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:18,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-08 16:00:18,505 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:18,506 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-08 16:00:18,507 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:18,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:18,520 INFO L82 PathProgramCache]: Analyzing trace with hash 49290, now seen corresponding path program 1 times [2021-10-08 16:00:18,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:18,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632712066] [2021-10-08 16:00:18,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:18,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:18,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:18,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:18,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632712066] [2021-10-08 16:00:18,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632712066] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:18,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:00:18,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-08 16:00:18,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519009699] [2021-10-08 16:00:18,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:00:18,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:18,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:00:18,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:00:18,931 INFO L87 Difference]: Start difference. First operand has 5120 states, 4988 states have (on average 3.7516038492381716) internal successors, (18713), 5119 states have internal predecessors, (18713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:19,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:19,211 INFO L93 Difference]: Finished difference Result 10233 states and 36139 transitions. [2021-10-08 16:00:19,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:00:19,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2021-10-08 16:00:19,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:19,353 INFO L225 Difference]: With dead ends: 10233 [2021-10-08 16:00:19,353 INFO L226 Difference]: Without dead ends: 10233 [2021-10-08 16:00:19,355 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:00:19,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10233 states. [2021-10-08 16:00:19,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10233 to 5123. [2021-10-08 16:00:19,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 4991 states have (on average 3.622720897615708) internal successors, (18081), 5122 states have internal predecessors, (18081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:19,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 18081 transitions. [2021-10-08 16:00:19,944 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 18081 transitions. Word has length 2 [2021-10-08 16:00:19,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:19,945 INFO L470 AbstractCegarLoop]: Abstraction has 5123 states and 18081 transitions. [2021-10-08 16:00:19,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:19,946 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 18081 transitions. [2021-10-08 16:00:19,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 16:00:19,946 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:19,947 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 16:00:19,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-08 16:00:19,947 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:19,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:19,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1531059, now seen corresponding path program 1 times [2021-10-08 16:00:19,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:19,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271752196] [2021-10-08 16:00:19,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:19,949 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:20,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:20,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:20,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271752196] [2021-10-08 16:00:20,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271752196] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:20,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083550454] [2021-10-08 16:00:20,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:20,052 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:20,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:20,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:00:20,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-08 16:00:20,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:20,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:00:20,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:20,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:20,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083550454] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:20,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:00:20,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2021-10-08 16:00:20,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138282748] [2021-10-08 16:00:20,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:00:20,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:20,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:00:20,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:20,206 INFO L87 Difference]: Start difference. First operand 5123 states and 18081 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:20,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:20,475 INFO L93 Difference]: Finished difference Result 10230 states and 36136 transitions. [2021-10-08 16:00:20,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:00:20,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2021-10-08 16:00:20,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:20,582 INFO L225 Difference]: With dead ends: 10230 [2021-10-08 16:00:20,582 INFO L226 Difference]: Without dead ends: 10230 [2021-10-08 16:00:20,583 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:20,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10230 states. [2021-10-08 16:00:20,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10230 to 5120. [2021-10-08 16:00:20,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5120 states, 4991 states have (on average 3.622119815668203) internal successors, (18078), 5119 states have internal predecessors, (18078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:21,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5120 states to 5120 states and 18078 transitions. [2021-10-08 16:00:21,124 INFO L78 Accepts]: Start accepts. Automaton has 5120 states and 18078 transitions. Word has length 3 [2021-10-08 16:00:21,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:21,125 INFO L470 AbstractCegarLoop]: Abstraction has 5120 states and 18078 transitions. [2021-10-08 16:00:21,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:21,125 INFO L276 IsEmpty]: Start isEmpty. Operand 5120 states and 18078 transitions. [2021-10-08 16:00:21,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 16:00:21,125 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:21,125 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 16:00:21,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-08 16:00:21,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:21,342 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:21,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:21,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1531060, now seen corresponding path program 1 times [2021-10-08 16:00:21,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:21,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023665603] [2021-10-08 16:00:21,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:21,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:21,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:21,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:21,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023665603] [2021-10-08 16:00:21,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023665603] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:21,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866724673] [2021-10-08 16:00:21,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:21,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:21,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:21,425 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:00:21,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-08 16:00:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:21,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:00:21,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:21,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:21,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866724673] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:21,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:00:21,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-08 16:00:21,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161082321] [2021-10-08 16:00:21,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:00:21,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:21,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:00:21,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:21,510 INFO L87 Difference]: Start difference. First operand 5120 states and 18078 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:21,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:21,839 INFO L93 Difference]: Finished difference Result 15343 states and 54202 transitions. [2021-10-08 16:00:21,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:00:21,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 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 3 [2021-10-08 16:00:21,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:22,035 INFO L225 Difference]: With dead ends: 15343 [2021-10-08 16:00:22,036 INFO L226 Difference]: Without dead ends: 15343 [2021-10-08 16:00:22,036 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:22,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15343 states. [2021-10-08 16:00:22,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15343 to 5123. [2021-10-08 16:00:22,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 4994 states have (on average 3.621545855026031) internal successors, (18086), 5122 states have internal predecessors, (18086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:22,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 18086 transitions. [2021-10-08 16:00:22,487 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 18086 transitions. Word has length 3 [2021-10-08 16:00:22,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:22,488 INFO L470 AbstractCegarLoop]: Abstraction has 5123 states and 18086 transitions. [2021-10-08 16:00:22,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:22,488 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 18086 transitions. [2021-10-08 16:00:22,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-08 16:00:22,488 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:22,489 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-08 16:00:22,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-08 16:00:22,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:22,705 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:22,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:22,706 INFO L82 PathProgramCache]: Analyzing trace with hash 47465899, now seen corresponding path program 2 times [2021-10-08 16:00:22,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:22,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615509282] [2021-10-08 16:00:22,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:22,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:22,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:22,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:22,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615509282] [2021-10-08 16:00:22,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615509282] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:22,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528917631] [2021-10-08 16:00:22,785 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:00:22,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:22,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:22,792 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:00:22,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-08 16:00:22,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 16:00:22,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:00:22,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-08 16:00:22,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:22,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:00:22,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528917631] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:22,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:00:22,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-08 16:00:22,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768320252] [2021-10-08 16:00:22,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:00:22,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:22,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:00:22,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:00:22,894 INFO L87 Difference]: Start difference. First operand 5123 states and 18086 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:22,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:22,983 INFO L93 Difference]: Finished difference Result 5122 states and 18085 transitions. [2021-10-08 16:00:23,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:00:23,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 4 [2021-10-08 16:00:23,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:23,142 INFO L225 Difference]: With dead ends: 5122 [2021-10-08 16:00:23,143 INFO L226 Difference]: Without dead ends: 5122 [2021-10-08 16:00:23,143 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:00:23,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5122 states. [2021-10-08 16:00:23,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5122 to 5120. [2021-10-08 16:00:23,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5120 states, 4992 states have (on average 3.6219951923076925) internal successors, (18081), 5119 states have internal predecessors, (18081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:23,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5120 states to 5120 states and 18081 transitions. [2021-10-08 16:00:23,333 INFO L78 Accepts]: Start accepts. Automaton has 5120 states and 18081 transitions. Word has length 4 [2021-10-08 16:00:23,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:23,334 INFO L470 AbstractCegarLoop]: Abstraction has 5120 states and 18081 transitions. [2021-10-08 16:00:23,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:23,334 INFO L276 IsEmpty]: Start isEmpty. Operand 5120 states and 18081 transitions. [2021-10-08 16:00:23,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 16:00:23,335 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:23,335 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2021-10-08 16:00:23,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-08 16:00:23,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:23,550 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:23,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:23,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1472886773, now seen corresponding path program 1 times [2021-10-08 16:00:23,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:23,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888283786] [2021-10-08 16:00:23,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:23,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:23,704 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:00:23,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:23,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888283786] [2021-10-08 16:00:23,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888283786] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:23,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:00:23,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 16:00:23,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681541816] [2021-10-08 16:00:23,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:00:23,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:23,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:00:23,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 16:00:23,707 INFO L87 Difference]: Start difference. First operand 5120 states and 18081 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:23,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:23,837 INFO L93 Difference]: Finished difference Result 5126 states and 18089 transitions. [2021-10-08 16:00:23,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:00:23,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2021-10-08 16:00:23,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:23,865 INFO L225 Difference]: With dead ends: 5126 [2021-10-08 16:00:23,865 INFO L226 Difference]: Without dead ends: 5126 [2021-10-08 16:00:23,865 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:23,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5126 states. [2021-10-08 16:00:23,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5126 to 5124. [2021-10-08 16:00:24,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5124 states, 4996 states have (on average 3.6206965572457968) internal successors, (18089), 5123 states have internal predecessors, (18089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:24,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5124 states to 5124 states and 18089 transitions. [2021-10-08 16:00:24,138 INFO L78 Accepts]: Start accepts. Automaton has 5124 states and 18089 transitions. Word has length 5 [2021-10-08 16:00:24,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:24,140 INFO L470 AbstractCegarLoop]: Abstraction has 5124 states and 18089 transitions. [2021-10-08 16:00:24,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:24,140 INFO L276 IsEmpty]: Start isEmpty. Operand 5124 states and 18089 transitions. [2021-10-08 16:00:24,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 16:00:24,140 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:24,141 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-08 16:00:24,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-08 16:00:24,141 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:24,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:24,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1472892072, now seen corresponding path program 1 times [2021-10-08 16:00:24,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:24,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421505739] [2021-10-08 16:00:24,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:24,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:24,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:24,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:24,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421505739] [2021-10-08 16:00:24,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421505739] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:24,230 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:00:24,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:00:24,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162096854] [2021-10-08 16:00:24,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:00:24,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:24,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:00:24,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:00:24,232 INFO L87 Difference]: Start difference. First operand 5124 states and 18089 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:24,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:24,345 INFO L93 Difference]: Finished difference Result 10238 states and 36157 transitions. [2021-10-08 16:00:24,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:00:24,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2021-10-08 16:00:24,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:24,410 INFO L225 Difference]: With dead ends: 10238 [2021-10-08 16:00:24,410 INFO L226 Difference]: Without dead ends: 10238 [2021-10-08 16:00:24,411 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:00:24,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10238 states. [2021-10-08 16:00:24,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10238 to 5130. [2021-10-08 16:00:24,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5130 states, 5002 states have (on average 3.6187524990004) internal successors, (18101), 5129 states have internal predecessors, (18101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:24,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5130 states to 5130 states and 18101 transitions. [2021-10-08 16:00:24,816 INFO L78 Accepts]: Start accepts. Automaton has 5130 states and 18101 transitions. Word has length 5 [2021-10-08 16:00:24,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:24,816 INFO L470 AbstractCegarLoop]: Abstraction has 5130 states and 18101 transitions. [2021-10-08 16:00:24,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:24,816 INFO L276 IsEmpty]: Start isEmpty. Operand 5130 states and 18101 transitions. [2021-10-08 16:00:24,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-08 16:00:24,817 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:24,817 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2021-10-08 16:00:24,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-08 16:00:24,823 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:24,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:24,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1628373204, now seen corresponding path program 1 times [2021-10-08 16:00:24,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:24,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589253785] [2021-10-08 16:00:24,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:24,825 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:24,913 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:24,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:24,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589253785] [2021-10-08 16:00:24,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589253785] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:24,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081124579] [2021-10-08 16:00:24,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:24,915 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:24,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:24,916 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:00:24,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-08 16:00:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:24,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-08 16:00:24,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:25,062 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:25,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081124579] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:25,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:00:25,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-10-08 16:00:25,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309361976] [2021-10-08 16:00:25,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 16:00:25,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:25,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 16:00:25,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-08 16:00:25,065 INFO L87 Difference]: Start difference. First operand 5130 states and 18101 transitions. Second operand has 10 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:25,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:25,383 INFO L93 Difference]: Finished difference Result 15361 states and 54238 transitions. [2021-10-08 16:00:25,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 16:00:25,384 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 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 6 [2021-10-08 16:00:25,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:25,623 INFO L225 Difference]: With dead ends: 15361 [2021-10-08 16:00:25,623 INFO L226 Difference]: Without dead ends: 15361 [2021-10-08 16:00:25,631 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 88.7ms TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-10-08 16:00:25,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15361 states. [2021-10-08 16:00:25,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15361 to 5133. [2021-10-08 16:00:25,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5133 states, 5005 states have (on average 3.6175824175824176) internal successors, (18106), 5132 states have internal predecessors, (18106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:26,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 18106 transitions. [2021-10-08 16:00:26,014 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 18106 transitions. Word has length 6 [2021-10-08 16:00:26,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:26,015 INFO L470 AbstractCegarLoop]: Abstraction has 5133 states and 18106 transitions. [2021-10-08 16:00:26,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:26,018 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 18106 transitions. [2021-10-08 16:00:26,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 16:00:26,019 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:26,019 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-10-08 16:00:26,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-08 16:00:26,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:26,234 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:26,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:26,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1889896319, now seen corresponding path program 1 times [2021-10-08 16:00:26,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:26,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400015898] [2021-10-08 16:00:26,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:26,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:26,279 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:26,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:26,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400015898] [2021-10-08 16:00:26,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400015898] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:26,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039363901] [2021-10-08 16:00:26,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:26,281 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:26,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:26,282 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:00:26,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-08 16:00:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:26,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-08 16:00:26,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:26,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:26,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039363901] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:26,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:00:26,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-08 16:00:26,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379171168] [2021-10-08 16:00:26,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 16:00:26,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:26,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 16:00:26,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:00:26,385 INFO L87 Difference]: Start difference. First operand 5133 states and 18106 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:26,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:26,608 INFO L93 Difference]: Finished difference Result 20469 states and 72294 transitions. [2021-10-08 16:00:26,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 16:00:26,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 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 7 [2021-10-08 16:00:26,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:26,721 INFO L225 Difference]: With dead ends: 20469 [2021-10-08 16:00:26,722 INFO L226 Difference]: Without dead ends: 20469 [2021-10-08 16:00:26,722 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 9.2ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:00:26,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20469 states. [2021-10-08 16:00:27,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20469 to 5136. [2021-10-08 16:00:27,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5136 states, 5008 states have (on average 3.6170127795527156) internal successors, (18114), 5135 states have internal predecessors, (18114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:27,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5136 states to 5136 states and 18114 transitions. [2021-10-08 16:00:27,359 INFO L78 Accepts]: Start accepts. Automaton has 5136 states and 18114 transitions. Word has length 7 [2021-10-08 16:00:27,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:27,360 INFO L470 AbstractCegarLoop]: Abstraction has 5136 states and 18114 transitions. [2021-10-08 16:00:27,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:27,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5136 states and 18114 transitions. [2021-10-08 16:00:27,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 16:00:27,361 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:27,361 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-10-08 16:00:27,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-08 16:00:27,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:27,577 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:27,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:27,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1889879353, now seen corresponding path program 1 times [2021-10-08 16:00:27,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:27,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623626420] [2021-10-08 16:00:27,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:27,580 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:27,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:27,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:27,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623626420] [2021-10-08 16:00:27,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623626420] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:27,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135200007] [2021-10-08 16:00:27,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:27,620 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:27,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:27,621 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:00:27,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-08 16:00:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:27,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:00:27,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:27,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:27,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135200007] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:27,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:00:27,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-10-08 16:00:27,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719213808] [2021-10-08 16:00:27,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:00:27,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:27,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:00:27,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:27,733 INFO L87 Difference]: Start difference. First operand 5136 states and 18114 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:27,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:27,845 INFO L93 Difference]: Finished difference Result 10243 states and 36165 transitions. [2021-10-08 16:00:27,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:00:27,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2021-10-08 16:00:27,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:27,945 INFO L225 Difference]: With dead ends: 10243 [2021-10-08 16:00:27,945 INFO L226 Difference]: Without dead ends: 10243 [2021-10-08 16:00:27,949 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:27,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10243 states. [2021-10-08 16:00:28,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10243 to 5135. [2021-10-08 16:00:28,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5008 states have (on average 3.616014376996805) internal successors, (18109), 5134 states have internal predecessors, (18109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:28,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 18109 transitions. [2021-10-08 16:00:28,335 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 18109 transitions. Word has length 7 [2021-10-08 16:00:28,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:28,335 INFO L470 AbstractCegarLoop]: Abstraction has 5135 states and 18109 transitions. [2021-10-08 16:00:28,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:28,336 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 18109 transitions. [2021-10-08 16:00:28,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 16:00:28,336 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:28,336 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-10-08 16:00:28,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-08 16:00:28,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:28,551 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:28,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:28,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1889879404, now seen corresponding path program 1 times [2021-10-08 16:00:28,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:28,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874453732] [2021-10-08 16:00:28,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:28,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:28,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:28,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:28,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874453732] [2021-10-08 16:00:28,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874453732] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:28,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550040588] [2021-10-08 16:00:28,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:28,598 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:28,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:28,599 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:00:28,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-08 16:00:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:28,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:00:28,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:28,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:28,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550040588] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:28,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:00:28,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-08 16:00:28,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543611917] [2021-10-08 16:00:28,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:00:28,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:28,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:00:28,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:28,727 INFO L87 Difference]: Start difference. First operand 5135 states and 18109 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:29,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:29,038 INFO L93 Difference]: Finished difference Result 15358 states and 54235 transitions. [2021-10-08 16:00:29,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:00:29,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 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 7 [2021-10-08 16:00:29,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:29,123 INFO L225 Difference]: With dead ends: 15358 [2021-10-08 16:00:29,123 INFO L226 Difference]: Without dead ends: 15358 [2021-10-08 16:00:29,124 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:29,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15358 states. [2021-10-08 16:00:29,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15358 to 5142. [2021-10-08 16:00:29,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5142 states, 5015 states have (on average 3.6137587238285143) internal successors, (18123), 5141 states have internal predecessors, (18123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:29,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5142 states to 5142 states and 18123 transitions. [2021-10-08 16:00:29,571 INFO L78 Accepts]: Start accepts. Automaton has 5142 states and 18123 transitions. Word has length 7 [2021-10-08 16:00:29,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:29,572 INFO L470 AbstractCegarLoop]: Abstraction has 5142 states and 18123 transitions. [2021-10-08 16:00:29,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:29,572 INFO L276 IsEmpty]: Start isEmpty. Operand 5142 states and 18123 transitions. [2021-10-08 16:00:29,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-08 16:00:29,574 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:29,574 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2021-10-08 16:00:29,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-08 16:00:29,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-08 16:00:29,788 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:29,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:29,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1542759330, now seen corresponding path program 2 times [2021-10-08 16:00:29,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:29,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235858406] [2021-10-08 16:00:29,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:29,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:29,872 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:29,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:29,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235858406] [2021-10-08 16:00:29,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235858406] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:29,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848990460] [2021-10-08 16:00:29,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:00:29,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:29,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:29,874 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:00:29,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-08 16:00:29,963 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 16:00:29,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:00:29,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-08 16:00:29,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:30,003 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-08 16:00:30,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848990460] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:30,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:00:30,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-08 16:00:30,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363500600] [2021-10-08 16:00:30,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:00:30,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:30,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:00:30,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-08 16:00:30,008 INFO L87 Difference]: Start difference. First operand 5142 states and 18123 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:30,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:30,150 INFO L93 Difference]: Finished difference Result 10248 states and 36176 transitions. [2021-10-08 16:00:30,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:00:30,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 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 8 [2021-10-08 16:00:30,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:30,217 INFO L225 Difference]: With dead ends: 10248 [2021-10-08 16:00:30,217 INFO L226 Difference]: Without dead ends: 10248 [2021-10-08 16:00:30,218 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 24.6ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-08 16:00:30,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10248 states. [2021-10-08 16:00:30,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10248 to 5132. [2021-10-08 16:00:30,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5132 states, 5006 states have (on average 3.6154614462644825) internal successors, (18099), 5131 states have internal predecessors, (18099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:30,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5132 states to 5132 states and 18099 transitions. [2021-10-08 16:00:30,679 INFO L78 Accepts]: Start accepts. Automaton has 5132 states and 18099 transitions. Word has length 8 [2021-10-08 16:00:30,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:30,679 INFO L470 AbstractCegarLoop]: Abstraction has 5132 states and 18099 transitions. [2021-10-08 16:00:30,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:30,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5132 states and 18099 transitions. [2021-10-08 16:00:30,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-08 16:00:30,680 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:30,680 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2021-10-08 16:00:30,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-08 16:00:30,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-08 16:00:30,895 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:30,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:30,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1456507585, now seen corresponding path program 2 times [2021-10-08 16:00:30,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:30,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643973602] [2021-10-08 16:00:30,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:30,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:30,977 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:30,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:30,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643973602] [2021-10-08 16:00:30,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643973602] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:30,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545456146] [2021-10-08 16:00:30,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:00:30,978 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:30,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:30,980 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:00:31,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-08 16:00:31,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 16:00:31,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:00:31,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-08 16:00:31,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:31,096 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-08 16:00:31,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545456146] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:31,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:00:31,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 9 [2021-10-08 16:00:31,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507775648] [2021-10-08 16:00:31,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:00:31,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:31,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:00:31,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-08 16:00:31,099 INFO L87 Difference]: Start difference. First operand 5132 states and 18099 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:31,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:31,200 INFO L93 Difference]: Finished difference Result 10238 states and 36154 transitions. [2021-10-08 16:00:31,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:00:31,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 8 [2021-10-08 16:00:31,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:31,251 INFO L225 Difference]: With dead ends: 10238 [2021-10-08 16:00:31,252 INFO L226 Difference]: Without dead ends: 10238 [2021-10-08 16:00:31,252 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 42.1ms TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-10-08 16:00:31,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10238 states. [2021-10-08 16:00:31,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10238 to 5129. [2021-10-08 16:00:31,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5004 states have (on average 3.6159072741806555) internal successors, (18094), 5128 states have internal predecessors, (18094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:31,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 18094 transitions. [2021-10-08 16:00:31,609 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 18094 transitions. Word has length 8 [2021-10-08 16:00:31,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:31,610 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 18094 transitions. [2021-10-08 16:00:31,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:31,610 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 18094 transitions. [2021-10-08 16:00:31,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-08 16:00:31,611 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:31,611 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2021-10-08 16:00:31,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-08 16:00:31,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:31,824 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:31,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:31,825 INFO L82 PathProgramCache]: Analyzing trace with hash 597155059, now seen corresponding path program 2 times [2021-10-08 16:00:31,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:31,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889475159] [2021-10-08 16:00:31,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:31,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:31,873 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:00:31,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:31,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889475159] [2021-10-08 16:00:31,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889475159] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:31,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114636457] [2021-10-08 16:00:31,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:00:31,874 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:31,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:31,875 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:00:31,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-08 16:00:31,976 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 16:00:31,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:00:31,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-08 16:00:31,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:32,011 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-08 16:00:32,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114636457] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:32,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:00:32,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2021-10-08 16:00:32,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973545296] [2021-10-08 16:00:32,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 16:00:32,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:32,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 16:00:32,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-08 16:00:32,014 INFO L87 Difference]: Start difference. First operand 5129 states and 18094 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:32,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:32,481 INFO L93 Difference]: Finished difference Result 25562 states and 90326 transitions. [2021-10-08 16:00:32,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 16:00:32,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 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 9 [2021-10-08 16:00:32,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:32,602 INFO L225 Difference]: With dead ends: 25562 [2021-10-08 16:00:32,602 INFO L226 Difference]: Without dead ends: 25562 [2021-10-08 16:00:32,603 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 34.6ms TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2021-10-08 16:00:32,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25562 states. [2021-10-08 16:00:33,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25562 to 5120. [2021-10-08 16:00:33,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5120 states, 4996 states have (on average 3.6184947958366696) internal successors, (18078), 5119 states have internal predecessors, (18078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:33,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5120 states to 5120 states and 18078 transitions. [2021-10-08 16:00:33,304 INFO L78 Accepts]: Start accepts. Automaton has 5120 states and 18078 transitions. Word has length 9 [2021-10-08 16:00:33,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:33,304 INFO L470 AbstractCegarLoop]: Abstraction has 5120 states and 18078 transitions. [2021-10-08 16:00:33,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:33,305 INFO L276 IsEmpty]: Start isEmpty. Operand 5120 states and 18078 transitions. [2021-10-08 16:00:33,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-08 16:00:33,306 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:33,306 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:00:33,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-08 16:00:33,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-08 16:00:33,522 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:33,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:33,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1286300713, now seen corresponding path program 1 times [2021-10-08 16:00:33,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:33,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801484710] [2021-10-08 16:00:33,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:33,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:33,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:00:33,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:33,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801484710] [2021-10-08 16:00:33,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801484710] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:33,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:00:33,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 16:00:33,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606031264] [2021-10-08 16:00:33,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:00:33,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:33,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:00:33,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 16:00:33,573 INFO L87 Difference]: Start difference. First operand 5120 states and 18078 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:33,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:33,657 INFO L93 Difference]: Finished difference Result 7159 states and 24613 transitions. [2021-10-08 16:00:33,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 16:00:33,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2021-10-08 16:00:33,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:33,711 INFO L225 Difference]: With dead ends: 7159 [2021-10-08 16:00:33,711 INFO L226 Difference]: Without dead ends: 7145 [2021-10-08 16:00:33,712 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7145 states. [2021-10-08 16:00:34,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7145 to 6636. [2021-10-08 16:00:34,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6636 states, 6512 states have (on average 3.5720208845208847) internal successors, (23261), 6635 states have internal predecessors, (23261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:34,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6636 states to 6636 states and 23261 transitions. [2021-10-08 16:00:34,104 INFO L78 Accepts]: Start accepts. Automaton has 6636 states and 23261 transitions. Word has length 13 [2021-10-08 16:00:34,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:34,105 INFO L470 AbstractCegarLoop]: Abstraction has 6636 states and 23261 transitions. [2021-10-08 16:00:34,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:34,105 INFO L276 IsEmpty]: Start isEmpty. Operand 6636 states and 23261 transitions. [2021-10-08 16:00:34,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-08 16:00:34,111 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:34,111 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:00:34,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-08 16:00:34,114 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:34,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:34,114 INFO L82 PathProgramCache]: Analyzing trace with hash -329081982, now seen corresponding path program 1 times [2021-10-08 16:00:34,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:34,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96886451] [2021-10-08 16:00:34,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:34,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:00:34,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:34,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96886451] [2021-10-08 16:00:34,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96886451] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:34,316 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:00:34,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 16:00:34,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125438094] [2021-10-08 16:00:34,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 16:00:34,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:34,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 16:00:34,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:00:34,317 INFO L87 Difference]: Start difference. First operand 6636 states and 23261 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:34,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:34,464 INFO L93 Difference]: Finished difference Result 6640 states and 23267 transitions. [2021-10-08 16:00:34,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 16:00:34,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2021-10-08 16:00:34,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:34,494 INFO L225 Difference]: With dead ends: 6640 [2021-10-08 16:00:34,494 INFO L226 Difference]: Without dead ends: 6633 [2021-10-08 16:00:34,494 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.9ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-08 16:00:34,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6633 states. [2021-10-08 16:00:34,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6633 to 6633. [2021-10-08 16:00:34,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6509 states have (on average 3.572591795974804) internal successors, (23254), 6632 states have internal predecessors, (23254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:34,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 23254 transitions. [2021-10-08 16:00:34,654 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 23254 transitions. Word has length 14 [2021-10-08 16:00:34,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:34,654 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 23254 transitions. [2021-10-08 16:00:34,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:34,654 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 23254 transitions. [2021-10-08 16:00:34,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-08 16:00:34,655 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:34,655 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:00:34,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-08 16:00:34,656 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:34,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:34,656 INFO L82 PathProgramCache]: Analyzing trace with hash -436771466, now seen corresponding path program 1 times [2021-10-08 16:00:34,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:34,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600326585] [2021-10-08 16:00:34,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:34,657 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:34,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:00:34,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:34,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600326585] [2021-10-08 16:00:34,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600326585] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:34,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:00:34,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 16:00:34,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913461584] [2021-10-08 16:00:34,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:00:34,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:34,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:00:34,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 16:00:34,709 INFO L87 Difference]: Start difference. First operand 6633 states and 23254 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:34,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:34,955 INFO L93 Difference]: Finished difference Result 10708 states and 36320 transitions. [2021-10-08 16:00:34,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 16:00:34,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2021-10-08 16:00:34,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:34,997 INFO L225 Difference]: With dead ends: 10708 [2021-10-08 16:00:34,997 INFO L226 Difference]: Without dead ends: 10680 [2021-10-08 16:00:34,998 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:35,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2021-10-08 16:00:35,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 6636. [2021-10-08 16:00:35,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6636 states, 6512 states have (on average 3.571867321867322) internal successors, (23260), 6635 states have internal predecessors, (23260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:35,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6636 states to 6636 states and 23260 transitions. [2021-10-08 16:00:35,221 INFO L78 Accepts]: Start accepts. Automaton has 6636 states and 23260 transitions. Word has length 15 [2021-10-08 16:00:35,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:35,222 INFO L470 AbstractCegarLoop]: Abstraction has 6636 states and 23260 transitions. [2021-10-08 16:00:35,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:35,222 INFO L276 IsEmpty]: Start isEmpty. Operand 6636 states and 23260 transitions. [2021-10-08 16:00:35,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-08 16:00:35,224 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:35,224 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:00:35,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-08 16:00:35,224 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:35,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:35,225 INFO L82 PathProgramCache]: Analyzing trace with hash -713836240, now seen corresponding path program 1 times [2021-10-08 16:00:35,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:35,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839543995] [2021-10-08 16:00:35,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:35,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:35,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:00:35,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:35,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839543995] [2021-10-08 16:00:35,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839543995] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:35,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:00:35,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 16:00:35,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886318473] [2021-10-08 16:00:35,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:00:35,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:35,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:00:35,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 16:00:35,260 INFO L87 Difference]: Start difference. First operand 6636 states and 23260 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:35,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:35,323 INFO L93 Difference]: Finished difference Result 7528 states and 25908 transitions. [2021-10-08 16:00:35,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:00:35,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2021-10-08 16:00:35,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:35,528 INFO L225 Difference]: With dead ends: 7528 [2021-10-08 16:00:35,528 INFO L226 Difference]: Without dead ends: 7512 [2021-10-08 16:00:35,529 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:00:35,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7512 states. [2021-10-08 16:00:35,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7512 to 7512. [2021-10-08 16:00:35,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7512 states, 7364 states have (on average 3.5108636610537753) internal successors, (25854), 7511 states have internal predecessors, (25854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:35,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 25854 transitions. [2021-10-08 16:00:35,752 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 25854 transitions. Word has length 15 [2021-10-08 16:00:35,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:35,752 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 25854 transitions. [2021-10-08 16:00:35,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:35,752 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 25854 transitions. [2021-10-08 16:00:35,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 16:00:35,754 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:35,754 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:00:35,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-08 16:00:35,755 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:35,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:35,756 INFO L82 PathProgramCache]: Analyzing trace with hash 236801485, now seen corresponding path program 1 times [2021-10-08 16:00:35,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:35,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507208974] [2021-10-08 16:00:35,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:35,757 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:36,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:00:36,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:36,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507208974] [2021-10-08 16:00:36,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507208974] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:36,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950514162] [2021-10-08 16:00:36,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:36,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:36,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:36,449 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:00:36,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-08 16:00:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:36,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 52 conjunts are in the unsatisfiable core [2021-10-08 16:00:36,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:36,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:00:36,991 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:00:36,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:00:37,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 16:00:37,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 84 [2021-10-08 16:00:37,262 INFO L354 Elim1Store]: treesize reduction 65, result has 18.8 percent of original size [2021-10-08 16:00:37,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 93 [2021-10-08 16:00:37,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 86 [2021-10-08 16:00:37,427 INFO L354 Elim1Store]: treesize reduction 49, result has 23.4 percent of original size [2021-10-08 16:00:37,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 132 treesize of output 131 [2021-10-08 16:00:37,449 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:37,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 77 [2021-10-08 16:00:37,468 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:37,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 94 [2021-10-08 16:00:37,673 INFO L354 Elim1Store]: treesize reduction 49, result has 23.4 percent of original size [2021-10-08 16:00:37,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 118 [2021-10-08 16:00:37,695 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:37,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 72 [2021-10-08 16:00:37,712 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:37,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 81 [2021-10-08 16:00:37,885 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:37,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 78 [2021-10-08 16:00:37,902 INFO L354 Elim1Store]: treesize reduction 49, result has 23.4 percent of original size [2021-10-08 16:00:37,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 90 [2021-10-08 16:00:37,917 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:37,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 68 [2021-10-08 16:00:38,048 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:00:38,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950514162] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:38,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:00:38,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2021-10-08 16:00:38,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503077125] [2021-10-08 16:00:38,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-08 16:00:38,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:38,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-08 16:00:38,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-10-08 16:00:38,051 INFO L87 Difference]: Start difference. First operand 7512 states and 25854 transitions. Second operand has 18 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 17 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:39,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:39,955 INFO L93 Difference]: Finished difference Result 18471 states and 66653 transitions. [2021-10-08 16:00:39,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-08 16:00:39,956 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 17 states have internal predecessors, (28), 0 states have call successors, (0), 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 16 [2021-10-08 16:00:39,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:40,051 INFO L225 Difference]: With dead ends: 18471 [2021-10-08 16:00:40,052 INFO L226 Difference]: Without dead ends: 18471 [2021-10-08 16:00:40,052 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1023.4ms TimeCoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2021-10-08 16:00:40,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18471 states. [2021-10-08 16:00:40,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18471 to 9052. [2021-10-08 16:00:40,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9052 states, 8904 states have (on average 3.5618823000898474) internal successors, (31715), 9051 states have internal predecessors, (31715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:40,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9052 states to 9052 states and 31715 transitions. [2021-10-08 16:00:40,570 INFO L78 Accepts]: Start accepts. Automaton has 9052 states and 31715 transitions. Word has length 16 [2021-10-08 16:00:40,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:40,571 INFO L470 AbstractCegarLoop]: Abstraction has 9052 states and 31715 transitions. [2021-10-08 16:00:40,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 17 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:40,571 INFO L276 IsEmpty]: Start isEmpty. Operand 9052 states and 31715 transitions. [2021-10-08 16:00:40,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 16:00:40,576 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:40,576 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:00:40,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-10-08 16:00:40,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-08 16:00:40,791 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:40,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:40,792 INFO L82 PathProgramCache]: Analyzing trace with hash -319059881, now seen corresponding path program 1 times [2021-10-08 16:00:40,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:40,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283704275] [2021-10-08 16:00:40,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:40,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:40,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:00:40,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:40,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283704275] [2021-10-08 16:00:40,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283704275] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:00:40,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:00:40,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-08 16:00:40,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970766275] [2021-10-08 16:00:40,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 16:00:40,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:40,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 16:00:40,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-08 16:00:40,851 INFO L87 Difference]: Start difference. First operand 9052 states and 31715 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:41,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:41,172 INFO L93 Difference]: Finished difference Result 12011 states and 40781 transitions. [2021-10-08 16:00:41,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-08 16:00:41,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2021-10-08 16:00:41,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:41,205 INFO L225 Difference]: With dead ends: 12011 [2021-10-08 16:00:41,205 INFO L226 Difference]: Without dead ends: 11958 [2021-10-08 16:00:41,206 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 64.3ms TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-10-08 16:00:41,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11958 states. [2021-10-08 16:00:41,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11958 to 10405. [2021-10-08 16:00:41,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10405 states, 10257 states have (on average 3.588183679438432) internal successors, (36804), 10404 states have internal predecessors, (36804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:41,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10405 states to 10405 states and 36804 transitions. [2021-10-08 16:00:41,644 INFO L78 Accepts]: Start accepts. Automaton has 10405 states and 36804 transitions. Word has length 16 [2021-10-08 16:00:41,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:41,645 INFO L470 AbstractCegarLoop]: Abstraction has 10405 states and 36804 transitions. [2021-10-08 16:00:41,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:41,646 INFO L276 IsEmpty]: Start isEmpty. Operand 10405 states and 36804 transitions. [2021-10-08 16:00:41,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 16:00:41,651 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:41,651 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:00:41,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-08 16:00:41,651 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:41,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:41,652 INFO L82 PathProgramCache]: Analyzing trace with hash -357273514, now seen corresponding path program 2 times [2021-10-08 16:00:41,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:41,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191644614] [2021-10-08 16:00:41,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:41,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:42,543 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:00:42,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:42,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191644614] [2021-10-08 16:00:42,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191644614] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:42,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665421699] [2021-10-08 16:00:42,544 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:00:42,544 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:42,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:42,545 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:00:42,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-08 16:00:42,710 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:00:42,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:00:42,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-08 16:00:42,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:42,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:00:42,874 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:00:42,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:00:42,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 16:00:43,096 INFO L354 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2021-10-08 16:00:43,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 39 [2021-10-08 16:00:43,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 103 [2021-10-08 16:00:43,319 INFO L354 Elim1Store]: treesize reduction 168, result has 17.2 percent of original size [2021-10-08 16:00:43,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 91 [2021-10-08 16:00:43,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 81 [2021-10-08 16:00:43,625 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:43,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 112 [2021-10-08 16:00:43,657 INFO L354 Elim1Store]: treesize reduction 184, result has 21.7 percent of original size [2021-10-08 16:00:43,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 149 treesize of output 151 [2021-10-08 16:00:43,676 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:43,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 118 [2021-10-08 16:00:43,957 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:43,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 151 treesize of output 107 [2021-10-08 16:00:43,990 INFO L354 Elim1Store]: treesize reduction 184, result has 21.7 percent of original size [2021-10-08 16:00:43,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 136 treesize of output 138 [2021-10-08 16:00:44,008 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:44,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 105 [2021-10-08 16:00:44,244 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:44,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 102 [2021-10-08 16:00:44,275 INFO L354 Elim1Store]: treesize reduction 184, result has 21.7 percent of original size [2021-10-08 16:00:44,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 125 [2021-10-08 16:00:44,293 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:44,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 92 [2021-10-08 16:00:44,544 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:00:44,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665421699] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:44,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:00:44,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 18 [2021-10-08 16:00:44,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51070857] [2021-10-08 16:00:44,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-08 16:00:44,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:44,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-08 16:00:44,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2021-10-08 16:00:44,546 INFO L87 Difference]: Start difference. First operand 10405 states and 36804 transitions. Second operand has 20 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:54,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:00:54,640 INFO L93 Difference]: Finished difference Result 23398 states and 85570 transitions. [2021-10-08 16:00:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-08 16:00:54,641 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 0 states have call successors, (0), 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 17 [2021-10-08 16:00:54,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:00:54,734 INFO L225 Difference]: With dead ends: 23398 [2021-10-08 16:00:54,734 INFO L226 Difference]: Without dead ends: 23398 [2021-10-08 16:00:54,735 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1648.7ms TimeCoverageRelationStatistics Valid=121, Invalid=691, Unknown=0, NotChecked=0, Total=812 [2021-10-08 16:00:54,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23398 states. [2021-10-08 16:00:55,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23398 to 10406. [2021-10-08 16:00:55,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10406 states, 10258 states have (on average 3.5880288555273934) internal successors, (36806), 10405 states have internal predecessors, (36806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:55,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10406 states to 10406 states and 36806 transitions. [2021-10-08 16:00:55,218 INFO L78 Accepts]: Start accepts. Automaton has 10406 states and 36806 transitions. Word has length 17 [2021-10-08 16:00:55,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:00:55,219 INFO L470 AbstractCegarLoop]: Abstraction has 10406 states and 36806 transitions. [2021-10-08 16:00:55,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:00:55,219 INFO L276 IsEmpty]: Start isEmpty. Operand 10406 states and 36806 transitions. [2021-10-08 16:00:55,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 16:00:55,221 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:00:55,221 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:00:55,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-08 16:00:55,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:55,422 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:00:55,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:00:55,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1249087467, now seen corresponding path program 1 times [2021-10-08 16:00:55,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:00:55,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099751981] [2021-10-08 16:00:55,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:55,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:00:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:56,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:00:56,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:00:56,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099751981] [2021-10-08 16:00:56,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099751981] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:56,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705354564] [2021-10-08 16:00:56,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:00:56,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:00:56,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:00:56,057 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:00:56,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-08 16:00:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:00:56,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-08 16:00:56,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:00:56,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:00:56,428 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:00:56,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:00:56,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-10-08 16:00:56,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 98 [2021-10-08 16:00:56,703 INFO L354 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2021-10-08 16:00:56,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 127 treesize of output 107 [2021-10-08 16:00:56,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 100 [2021-10-08 16:00:57,074 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:57,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 99 [2021-10-08 16:00:57,098 INFO L354 Elim1Store]: treesize reduction 85, result has 24.1 percent of original size [2021-10-08 16:00:57,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 128 treesize of output 127 [2021-10-08 16:00:57,116 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:57,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 105 [2021-10-08 16:00:57,394 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:57,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 130 treesize of output 94 [2021-10-08 16:00:57,417 INFO L354 Elim1Store]: treesize reduction 85, result has 24.1 percent of original size [2021-10-08 16:00:57,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 114 [2021-10-08 16:00:57,436 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:57,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 92 [2021-10-08 16:00:57,675 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:57,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 89 [2021-10-08 16:00:57,695 INFO L354 Elim1Store]: treesize reduction 85, result has 24.1 percent of original size [2021-10-08 16:00:57,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 101 [2021-10-08 16:00:57,712 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:00:57,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 79 [2021-10-08 16:00:58,031 INFO L354 Elim1Store]: treesize reduction 81, result has 48.4 percent of original size [2021-10-08 16:00:58,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 147 treesize of output 144 [2021-10-08 16:00:58,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2021-10-08 16:00:58,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 75 [2021-10-08 16:00:58,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:00:58,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705354564] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:00:58,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:00:58,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 18 [2021-10-08 16:00:58,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654278346] [2021-10-08 16:00:58,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-08 16:00:58,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:00:58,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-08 16:00:58,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2021-10-08 16:00:58,132 INFO L87 Difference]: Start difference. First operand 10406 states and 36806 transitions. Second operand has 20 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:05,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:05,045 INFO L93 Difference]: Finished difference Result 21939 states and 80095 transitions. [2021-10-08 16:01:05,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 16:01:05,046 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 0 states have call successors, (0), 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 17 [2021-10-08 16:01:05,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:05,144 INFO L225 Difference]: With dead ends: 21939 [2021-10-08 16:01:05,144 INFO L226 Difference]: Without dead ends: 21939 [2021-10-08 16:01:05,145 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1332.1ms TimeCoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2021-10-08 16:01:05,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21939 states. [2021-10-08 16:01:05,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21939 to 12456. [2021-10-08 16:01:05,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12456 states, 12308 states have (on average 3.6187032824179397) internal successors, (44539), 12455 states have internal predecessors, (44539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:05,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12456 states to 12456 states and 44539 transitions. [2021-10-08 16:01:05,671 INFO L78 Accepts]: Start accepts. Automaton has 12456 states and 44539 transitions. Word has length 17 [2021-10-08 16:01:05,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:05,671 INFO L470 AbstractCegarLoop]: Abstraction has 12456 states and 44539 transitions. [2021-10-08 16:01:05,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:05,672 INFO L276 IsEmpty]: Start isEmpty. Operand 12456 states and 44539 transitions. [2021-10-08 16:01:05,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 16:01:05,675 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:05,676 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:05,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-08 16:01:05,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-10-08 16:01:05,876 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:01:05,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:05,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1224471152, now seen corresponding path program 1 times [2021-10-08 16:01:05,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:05,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713077789] [2021-10-08 16:01:05,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:05,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:05,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:01:05,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:05,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713077789] [2021-10-08 16:01:05,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713077789] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:01:05,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:01:05,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-08 16:01:05,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137140507] [2021-10-08 16:01:05,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 16:01:05,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:05,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 16:01:05,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-08 16:01:05,991 INFO L87 Difference]: Start difference. First operand 12456 states and 44539 transitions. Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:06,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:06,574 INFO L93 Difference]: Finished difference Result 13845 states and 47858 transitions. [2021-10-08 16:01:06,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 16:01:06,575 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2021-10-08 16:01:06,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:06,615 INFO L225 Difference]: With dead ends: 13845 [2021-10-08 16:01:06,615 INFO L226 Difference]: Without dead ends: 13829 [2021-10-08 16:01:06,616 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 134.7ms TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2021-10-08 16:01:06,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13829 states. [2021-10-08 16:01:07,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13829 to 12330. [2021-10-08 16:01:07,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12330 states, 12182 states have (on average 3.6191922508619276) internal successors, (44089), 12329 states have internal predecessors, (44089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:07,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12330 states to 12330 states and 44089 transitions. [2021-10-08 16:01:07,067 INFO L78 Accepts]: Start accepts. Automaton has 12330 states and 44089 transitions. Word has length 17 [2021-10-08 16:01:07,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:07,067 INFO L470 AbstractCegarLoop]: Abstraction has 12330 states and 44089 transitions. [2021-10-08 16:01:07,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:07,067 INFO L276 IsEmpty]: Start isEmpty. Operand 12330 states and 44089 transitions. [2021-10-08 16:01:07,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-08 16:01:07,076 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:07,076 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:07,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-08 16:01:07,077 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:01:07,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:07,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1593729299, now seen corresponding path program 3 times [2021-10-08 16:01:07,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:07,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766231663] [2021-10-08 16:01:07,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:07,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:08,862 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:01:08,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:08,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766231663] [2021-10-08 16:01:08,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766231663] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:08,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102324519] [2021-10-08 16:01:08,863 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 16:01:08,863 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:01:08,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:01:08,865 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:01:08,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-08 16:01:09,367 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-08 16:01:09,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:01:09,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 57 conjunts are in the unsatisfiable core [2021-10-08 16:01:09,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:01:09,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:01:09,547 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:01:09,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:01:09,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-08 16:01:09,803 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-10-08 16:01:09,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 16:01:09,954 INFO L354 Elim1Store]: treesize reduction 52, result has 35.8 percent of original size [2021-10-08 16:01:09,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 57 [2021-10-08 16:01:10,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 112 [2021-10-08 16:01:10,249 INFO L354 Elim1Store]: treesize reduction 246, result has 17.4 percent of original size [2021-10-08 16:01:10,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 157 treesize of output 143 [2021-10-08 16:01:10,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 130 [2021-10-08 16:01:10,540 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:10,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 189 treesize of output 129 [2021-10-08 16:01:10,613 INFO L354 Elim1Store]: treesize reduction 318, result has 19.3 percent of original size [2021-10-08 16:01:10,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 174 treesize of output 179 [2021-10-08 16:01:10,635 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:10,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 135 [2021-10-08 16:01:10,992 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:10,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 176 treesize of output 124 [2021-10-08 16:01:11,043 INFO L354 Elim1Store]: treesize reduction 318, result has 19.3 percent of original size [2021-10-08 16:01:11,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 161 treesize of output 166 [2021-10-08 16:01:11,064 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:11,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 150 treesize of output 122 [2021-10-08 16:01:11,505 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:11,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 119 [2021-10-08 16:01:11,553 INFO L354 Elim1Store]: treesize reduction 318, result has 19.3 percent of original size [2021-10-08 16:01:11,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 148 treesize of output 153 [2021-10-08 16:01:11,571 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:11,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 109 [2021-10-08 16:01:11,876 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:01:11,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102324519] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:11,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:01:11,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2021-10-08 16:01:11,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650787595] [2021-10-08 16:01:11,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-08 16:01:11,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:11,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-08 16:01:11,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2021-10-08 16:01:11,879 INFO L87 Difference]: Start difference. First operand 12330 states and 44089 transitions. Second operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:17,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:17,786 INFO L93 Difference]: Finished difference Result 24137 states and 88596 transitions. [2021-10-08 16:01:17,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-08 16:01:17,786 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 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 18 [2021-10-08 16:01:17,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:17,871 INFO L225 Difference]: With dead ends: 24137 [2021-10-08 16:01:17,871 INFO L226 Difference]: Without dead ends: 24137 [2021-10-08 16:01:17,871 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 2799.6ms TimeCoverageRelationStatistics Valid=129, Invalid=801, Unknown=0, NotChecked=0, Total=930 [2021-10-08 16:01:17,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24137 states. [2021-10-08 16:01:18,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24137 to 12331. [2021-10-08 16:01:18,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12331 states, 12183 states have (on average 3.619059344988919) internal successors, (44091), 12330 states have internal predecessors, (44091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:18,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12331 states to 12331 states and 44091 transitions. [2021-10-08 16:01:18,345 INFO L78 Accepts]: Start accepts. Automaton has 12331 states and 44091 transitions. Word has length 18 [2021-10-08 16:01:18,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:18,346 INFO L470 AbstractCegarLoop]: Abstraction has 12331 states and 44091 transitions. [2021-10-08 16:01:18,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:18,346 INFO L276 IsEmpty]: Start isEmpty. Operand 12331 states and 44091 transitions. [2021-10-08 16:01:18,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-08 16:01:18,349 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:18,349 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:18,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-08 16:01:18,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:01:18,564 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:01:18,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:18,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1809424044, now seen corresponding path program 2 times [2021-10-08 16:01:18,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:18,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585088767] [2021-10-08 16:01:18,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:18,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:19,419 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:01:19,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:19,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585088767] [2021-10-08 16:01:19,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585088767] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:19,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72956194] [2021-10-08 16:01:19,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:01:19,420 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:01:19,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:01:19,421 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:01:19,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-08 16:01:19,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:01:19,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:01:19,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-08 16:01:19,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:01:20,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:01:20,103 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:01:20,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:01:20,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 16:01:20,352 INFO L354 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2021-10-08 16:01:20,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 43 [2021-10-08 16:01:20,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 107 [2021-10-08 16:01:20,733 INFO L354 Elim1Store]: treesize reduction 152, result has 18.7 percent of original size [2021-10-08 16:01:20,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 127 [2021-10-08 16:01:20,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 117 [2021-10-08 16:01:20,978 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:20,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 116 [2021-10-08 16:01:21,012 INFO L354 Elim1Store]: treesize reduction 184, result has 21.7 percent of original size [2021-10-08 16:01:21,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 153 treesize of output 155 [2021-10-08 16:01:21,031 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:21,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 122 [2021-10-08 16:01:21,328 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:21,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 111 [2021-10-08 16:01:21,359 INFO L354 Elim1Store]: treesize reduction 184, result has 21.7 percent of original size [2021-10-08 16:01:21,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 140 treesize of output 142 [2021-10-08 16:01:21,378 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:21,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 109 [2021-10-08 16:01:21,668 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:21,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 106 [2021-10-08 16:01:21,697 INFO L354 Elim1Store]: treesize reduction 184, result has 21.7 percent of original size [2021-10-08 16:01:21,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 129 [2021-10-08 16:01:21,713 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:21,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 96 [2021-10-08 16:01:22,197 INFO L354 Elim1Store]: treesize reduction 92, result has 66.8 percent of original size [2021-10-08 16:01:22,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 172 treesize of output 258 [2021-10-08 16:01:22,219 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-10-08 16:01:22,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 256 treesize of output 195 [2021-10-08 16:01:22,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 192 treesize of output 152 [2021-10-08 16:01:23,004 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:01:23,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72956194] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:23,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:01:23,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2021-10-08 16:01:23,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791104550] [2021-10-08 16:01:23,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-08 16:01:23,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:23,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-08 16:01:23,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2021-10-08 16:01:23,006 INFO L87 Difference]: Start difference. First operand 12331 states and 44091 transitions. Second operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:30,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:30,025 INFO L93 Difference]: Finished difference Result 24717 states and 91118 transitions. [2021-10-08 16:01:30,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 16:01:30,026 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 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 18 [2021-10-08 16:01:30,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:30,114 INFO L225 Difference]: With dead ends: 24717 [2021-10-08 16:01:30,115 INFO L226 Difference]: Without dead ends: 24717 [2021-10-08 16:01:30,115 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 2136.7ms TimeCoverageRelationStatistics Valid=153, Invalid=903, Unknown=0, NotChecked=0, Total=1056 [2021-10-08 16:01:30,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24717 states. [2021-10-08 16:01:30,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24717 to 12331. [2021-10-08 16:01:30,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12331 states, 12183 states have (on average 3.619059344988919) internal successors, (44091), 12330 states have internal predecessors, (44091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:30,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12331 states to 12331 states and 44091 transitions. [2021-10-08 16:01:30,486 INFO L78 Accepts]: Start accepts. Automaton has 12331 states and 44091 transitions. Word has length 18 [2021-10-08 16:01:30,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:30,486 INFO L470 AbstractCegarLoop]: Abstraction has 12331 states and 44091 transitions. [2021-10-08 16:01:30,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:30,487 INFO L276 IsEmpty]: Start isEmpty. Operand 12331 states and 44091 transitions. [2021-10-08 16:01:30,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-08 16:01:30,489 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:30,489 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:30,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-08 16:01:30,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:01:30,699 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:01:30,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:30,700 INFO L82 PathProgramCache]: Analyzing trace with hash -67004347, now seen corresponding path program 1 times [2021-10-08 16:01:30,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:30,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313606519] [2021-10-08 16:01:30,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:30,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:30,758 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-08 16:01:30,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:30,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313606519] [2021-10-08 16:01:30,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313606519] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:01:30,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:01:30,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:01:30,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235241143] [2021-10-08 16:01:30,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:01:30,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:30,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:01:30,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 16:01:30,762 INFO L87 Difference]: Start difference. First operand 12331 states and 44091 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:30,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:30,905 INFO L93 Difference]: Finished difference Result 11751 states and 42047 transitions. [2021-10-08 16:01:30,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:01:30,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2021-10-08 16:01:30,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:30,973 INFO L225 Difference]: With dead ends: 11751 [2021-10-08 16:01:30,973 INFO L226 Difference]: Without dead ends: 11751 [2021-10-08 16:01:30,973 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:01:30,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11751 states. [2021-10-08 16:01:31,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11751 to 11751. [2021-10-08 16:01:31,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11751 states, 11633 states have (on average 3.6144588670162467) internal successors, (42047), 11750 states have internal predecessors, (42047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:31,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11751 states to 11751 states and 42047 transitions. [2021-10-08 16:01:31,356 INFO L78 Accepts]: Start accepts. Automaton has 11751 states and 42047 transitions. Word has length 18 [2021-10-08 16:01:31,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:31,357 INFO L470 AbstractCegarLoop]: Abstraction has 11751 states and 42047 transitions. [2021-10-08 16:01:31,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:31,357 INFO L276 IsEmpty]: Start isEmpty. Operand 11751 states and 42047 transitions. [2021-10-08 16:01:31,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-08 16:01:31,361 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:31,361 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:31,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-08 16:01:31,361 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:01:31,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:31,362 INFO L82 PathProgramCache]: Analyzing trace with hash -67004423, now seen corresponding path program 1 times [2021-10-08 16:01:31,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:31,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936627234] [2021-10-08 16:01:31,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:31,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:31,430 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:01:31,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:31,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936627234] [2021-10-08 16:01:31,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936627234] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:31,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545547613] [2021-10-08 16:01:31,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:31,431 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:01:31,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:01:31,437 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:01:31,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-08 16:01:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:31,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:01:31,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:01:31,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-08 16:01:31,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545547613] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:01:31,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:01:31,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2021-10-08 16:01:31,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123223037] [2021-10-08 16:01:31,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:01:31,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:31,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:01:31,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-08 16:01:31,834 INFO L87 Difference]: Start difference. First operand 11751 states and 42047 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:31,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:31,959 INFO L93 Difference]: Finished difference Result 11171 states and 40003 transitions. [2021-10-08 16:01:31,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:01:31,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2021-10-08 16:01:31,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:32,007 INFO L225 Difference]: With dead ends: 11171 [2021-10-08 16:01:32,007 INFO L226 Difference]: Without dead ends: 11171 [2021-10-08 16:01:32,007 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 28.7ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-08 16:01:32,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11171 states. [2021-10-08 16:01:32,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11171 to 11171. [2021-10-08 16:01:32,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11171 states, 11083 states have (on average 3.6094017865198955) internal successors, (40003), 11170 states have internal predecessors, (40003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:32,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11171 states to 11171 states and 40003 transitions. [2021-10-08 16:01:32,233 INFO L78 Accepts]: Start accepts. Automaton has 11171 states and 40003 transitions. Word has length 18 [2021-10-08 16:01:32,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:32,233 INFO L470 AbstractCegarLoop]: Abstraction has 11171 states and 40003 transitions. [2021-10-08 16:01:32,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:32,234 INFO L276 IsEmpty]: Start isEmpty. Operand 11171 states and 40003 transitions. [2021-10-08 16:01:32,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-08 16:01:32,237 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:32,238 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:32,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-08 16:01:32,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-10-08 16:01:32,451 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:01:32,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:32,451 INFO L82 PathProgramCache]: Analyzing trace with hash 2059429464, now seen corresponding path program 1 times [2021-10-08 16:01:32,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:32,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229269467] [2021-10-08 16:01:32,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:32,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:32,512 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:01:32,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:32,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229269467] [2021-10-08 16:01:32,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229269467] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:01:32,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:01:32,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 16:01:32,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864060021] [2021-10-08 16:01:32,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:01:32,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:32,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:01:32,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:01:32,515 INFO L87 Difference]: Start difference. First operand 11171 states and 40003 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:32,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:32,839 INFO L93 Difference]: Finished difference Result 15238 states and 51580 transitions. [2021-10-08 16:01:32,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 16:01:32,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2021-10-08 16:01:32,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:32,905 INFO L225 Difference]: With dead ends: 15238 [2021-10-08 16:01:32,906 INFO L226 Difference]: Without dead ends: 15168 [2021-10-08 16:01:32,906 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 37.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-08 16:01:32,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15168 states. [2021-10-08 16:01:33,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15168 to 10416. [2021-10-08 16:01:33,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10416 states, 10328 states have (on average 3.570100697134005) internal successors, (36872), 10415 states have internal predecessors, (36872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:33,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10416 states to 10416 states and 36872 transitions. [2021-10-08 16:01:33,224 INFO L78 Accepts]: Start accepts. Automaton has 10416 states and 36872 transitions. Word has length 18 [2021-10-08 16:01:33,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:33,224 INFO L470 AbstractCegarLoop]: Abstraction has 10416 states and 36872 transitions. [2021-10-08 16:01:33,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:33,225 INFO L276 IsEmpty]: Start isEmpty. Operand 10416 states and 36872 transitions. [2021-10-08 16:01:33,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-08 16:01:33,228 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:33,228 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:33,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-08 16:01:33,228 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:01:33,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:33,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1910914232, now seen corresponding path program 1 times [2021-10-08 16:01:33,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:33,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418780448] [2021-10-08 16:01:33,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:33,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:33,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:01:33,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:33,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418780448] [2021-10-08 16:01:33,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418780448] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:01:33,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:01:33,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 16:01:33,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409275159] [2021-10-08 16:01:33,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:01:33,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:33,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:01:33,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:01:33,290 INFO L87 Difference]: Start difference. First operand 10416 states and 36872 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:33,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:33,425 INFO L93 Difference]: Finished difference Result 12315 states and 42827 transitions. [2021-10-08 16:01:33,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 16:01:33,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2021-10-08 16:01:33,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:33,482 INFO L225 Difference]: With dead ends: 12315 [2021-10-08 16:01:33,483 INFO L226 Difference]: Without dead ends: 12162 [2021-10-08 16:01:33,483 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-08 16:01:33,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12162 states. [2021-10-08 16:01:33,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12162 to 12162. [2021-10-08 16:01:33,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12162 states, 12058 states have (on average 3.5017415823519653) internal successors, (42224), 12161 states have internal predecessors, (42224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:33,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12162 states to 12162 states and 42224 transitions. [2021-10-08 16:01:33,929 INFO L78 Accepts]: Start accepts. Automaton has 12162 states and 42224 transitions. Word has length 18 [2021-10-08 16:01:33,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:33,929 INFO L470 AbstractCegarLoop]: Abstraction has 12162 states and 42224 transitions. [2021-10-08 16:01:33,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:33,929 INFO L276 IsEmpty]: Start isEmpty. Operand 12162 states and 42224 transitions. [2021-10-08 16:01:33,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 16:01:33,934 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:33,934 INFO L512 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:33,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-08 16:01:33,934 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:01:33,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:33,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1269152970, now seen corresponding path program 4 times [2021-10-08 16:01:33,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:33,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509951843] [2021-10-08 16:01:33,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:33,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:35,823 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:01:35,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:35,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509951843] [2021-10-08 16:01:35,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509951843] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:35,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10705214] [2021-10-08 16:01:35,824 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 16:01:35,824 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:01:35,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:01:35,825 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:01:35,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-08 16:01:36,740 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 16:01:36,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:01:36,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 64 conjunts are in the unsatisfiable core [2021-10-08 16:01:36,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:01:36,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:01:36,918 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:01:36,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:01:37,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 16:01:37,184 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-10-08 16:01:37,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 16:01:37,310 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-10-08 16:01:37,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 38 [2021-10-08 16:01:37,494 INFO L354 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2021-10-08 16:01:37,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 47 [2021-10-08 16:01:37,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 111 [2021-10-08 16:01:37,745 INFO L354 Elim1Store]: treesize reduction 436, result has 13.3 percent of original size [2021-10-08 16:01:37,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 132 treesize of output 121 [2021-10-08 16:01:37,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 105 [2021-10-08 16:01:37,970 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:37,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 204 treesize of output 136 [2021-10-08 16:01:38,038 INFO L354 Elim1Store]: treesize reduction 468, result has 17.5 percent of original size [2021-10-08 16:01:38,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 189 treesize of output 197 [2021-10-08 16:01:38,058 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:38,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 178 treesize of output 142 [2021-10-08 16:01:38,319 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:38,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 191 treesize of output 131 [2021-10-08 16:01:38,376 INFO L354 Elim1Store]: treesize reduction 468, result has 17.5 percent of original size [2021-10-08 16:01:38,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 176 treesize of output 184 [2021-10-08 16:01:38,396 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:38,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 165 treesize of output 129 [2021-10-08 16:01:38,628 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:38,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 178 treesize of output 126 [2021-10-08 16:01:38,704 INFO L354 Elim1Store]: treesize reduction 468, result has 17.5 percent of original size [2021-10-08 16:01:38,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 163 treesize of output 171 [2021-10-08 16:01:38,739 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:38,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 152 treesize of output 116 [2021-10-08 16:01:38,958 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:01:38,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10705214] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:38,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:01:38,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 22 [2021-10-08 16:01:38,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285177847] [2021-10-08 16:01:38,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-08 16:01:38,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:38,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-08 16:01:38,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-10-08 16:01:38,961 INFO L87 Difference]: Start difference. First operand 12162 states and 42224 transitions. Second operand has 24 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:44,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:01:44,541 INFO L93 Difference]: Finished difference Result 27497 states and 94861 transitions. [2021-10-08 16:01:44,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 16:01:44,542 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-08 16:01:44,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:01:44,644 INFO L225 Difference]: With dead ends: 27497 [2021-10-08 16:01:44,644 INFO L226 Difference]: Without dead ends: 27497 [2021-10-08 16:01:44,645 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 3161.4ms TimeCoverageRelationStatistics Valid=137, Invalid=985, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 16:01:44,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27497 states. [2021-10-08 16:01:45,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27497 to 12163. [2021-10-08 16:01:45,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12163 states, 12059 states have (on average 3.5016170495065926) internal successors, (42226), 12162 states have internal predecessors, (42226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:45,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12163 states to 12163 states and 42226 transitions. [2021-10-08 16:01:45,124 INFO L78 Accepts]: Start accepts. Automaton has 12163 states and 42226 transitions. Word has length 19 [2021-10-08 16:01:45,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:01:45,125 INFO L470 AbstractCegarLoop]: Abstraction has 12163 states and 42226 transitions. [2021-10-08 16:01:45,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:01:45,125 INFO L276 IsEmpty]: Start isEmpty. Operand 12163 states and 42226 transitions. [2021-10-08 16:01:45,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 16:01:45,129 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:01:45,129 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:01:45,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-10-08 16:01:45,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-10-08 16:01:45,343 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:01:45,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:01:45,344 INFO L82 PathProgramCache]: Analyzing trace with hash 2134000373, now seen corresponding path program 3 times [2021-10-08 16:01:45,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:01:45,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509208737] [2021-10-08 16:01:45,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:01:45,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:01:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:01:46,587 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:01:46,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:01:46,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509208737] [2021-10-08 16:01:46,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509208737] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:46,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634454527] [2021-10-08 16:01:46,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 16:01:46,589 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:01:46,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:01:46,590 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:01:46,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-08 16:01:47,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-08 16:01:47,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:01:47,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 92 conjunts are in the unsatisfiable core [2021-10-08 16:01:47,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:01:47,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:01:47,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-08 16:01:47,698 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-10-08 16:01:47,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-10-08 16:01:47,895 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-10-08 16:01:47,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-10-08 16:01:48,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-10-08 16:01:48,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:01:48,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 16:01:48,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:01:48,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:01:48,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:01:48,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 41 [2021-10-08 16:01:48,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 108 [2021-10-08 16:01:48,868 INFO L354 Elim1Store]: treesize reduction 192, result has 19.3 percent of original size [2021-10-08 16:01:48,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 161 treesize of output 147 [2021-10-08 16:01:48,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 134 [2021-10-08 16:01:49,220 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:49,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 185 treesize of output 117 [2021-10-08 16:01:49,250 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:49,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 170 treesize of output 158 [2021-10-08 16:01:49,291 INFO L354 Elim1Store]: treesize reduction 144, result has 24.2 percent of original size [2021-10-08 16:01:49,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 155 treesize of output 160 [2021-10-08 16:01:49,661 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:49,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 172 treesize of output 112 [2021-10-08 16:01:49,708 INFO L354 Elim1Store]: treesize reduction 144, result has 24.2 percent of original size [2021-10-08 16:01:49,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 157 treesize of output 162 [2021-10-08 16:01:49,733 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:49,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 134 [2021-10-08 16:01:50,078 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:50,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 159 treesize of output 107 [2021-10-08 16:01:50,125 INFO L354 Elim1Store]: treesize reduction 144, result has 24.2 percent of original size [2021-10-08 16:01:50,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 144 treesize of output 149 [2021-10-08 16:01:50,149 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:01:50,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 121 [2021-10-08 16:01:50,770 INFO L354 Elim1Store]: treesize reduction 138, result has 44.1 percent of original size [2021-10-08 16:01:50,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 215 [2021-10-08 16:01:50,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 225 treesize of output 185 [2021-10-08 16:01:50,804 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-10-08 16:01:50,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 185 treesize of output 156 [2021-10-08 16:01:51,326 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:01:51,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634454527] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:01:51,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:01:51,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 27 [2021-10-08 16:01:51,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051123786] [2021-10-08 16:01:51,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-08 16:01:51,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:01:51,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-08 16:01:51,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2021-10-08 16:01:51,330 INFO L87 Difference]: Start difference. First operand 12163 states and 42226 transitions. Second operand has 29 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 28 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:02:04,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:02:04,938 INFO L93 Difference]: Finished difference Result 59758 states and 206325 transitions. [2021-10-08 16:02:04,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-08 16:02:04,939 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 28 states have internal predecessors, (38), 0 states have call successors, (0), 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 19 [2021-10-08 16:02:04,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:02:05,162 INFO L225 Difference]: With dead ends: 59758 [2021-10-08 16:02:05,162 INFO L226 Difference]: Without dead ends: 59758 [2021-10-08 16:02:05,163 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 6143.3ms TimeCoverageRelationStatistics Valid=348, Invalid=2844, Unknown=0, NotChecked=0, Total=3192 [2021-10-08 16:02:05,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59758 states. [2021-10-08 16:02:05,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59758 to 12163. [2021-10-08 16:02:05,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12163 states, 12059 states have (on average 3.5016170495065926) internal successors, (42226), 12162 states have internal predecessors, (42226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:02:05,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12163 states to 12163 states and 42226 transitions. [2021-10-08 16:02:05,808 INFO L78 Accepts]: Start accepts. Automaton has 12163 states and 42226 transitions. Word has length 19 [2021-10-08 16:02:05,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:02:05,808 INFO L470 AbstractCegarLoop]: Abstraction has 12163 states and 42226 transitions. [2021-10-08 16:02:05,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 28 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:02:05,808 INFO L276 IsEmpty]: Start isEmpty. Operand 12163 states and 42226 transitions. [2021-10-08 16:02:05,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 16:02:05,811 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:02:05,811 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:02:05,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-08 16:02:06,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:02:06,022 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:02:06,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:02:06,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1355100137, now seen corresponding path program 5 times [2021-10-08 16:02:06,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:02:06,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754078298] [2021-10-08 16:02:06,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:06,024 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:02:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:07,660 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:02:07,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:02:07,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754078298] [2021-10-08 16:02:07,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754078298] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:07,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460726218] [2021-10-08 16:02:07,661 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 16:02:07,662 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:02:07,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:02:07,663 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:02:07,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-08 16:02:08,231 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-08 16:02:08,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:02:08,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 80 conjunts are in the unsatisfiable core [2021-10-08 16:02:08,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:02:08,697 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-08 16:02:08,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-08 16:02:09,426 INFO L354 Elim1Store]: treesize reduction 214, result has 29.1 percent of original size [2021-10-08 16:02:09,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 61 treesize of output 133 [2021-10-08 16:02:11,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:02:11,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:02:11,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:02:11,386 INFO L354 Elim1Store]: treesize reduction 258, result has 19.4 percent of original size [2021-10-08 16:02:11,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 69 treesize of output 128 [2021-10-08 16:02:12,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:02:12,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:02:12,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:02:12,782 INFO L354 Elim1Store]: treesize reduction 426, result has 16.1 percent of original size [2021-10-08 16:02:12,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 51 case distinctions, treesize of input 82 treesize of output 142 [2021-10-08 16:02:15,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-10-08 16:02:15,946 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-10-08 16:02:15,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 117 [2021-10-08 16:02:15,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 110 [2021-10-08 16:02:16,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-08 16:02:17,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:02:17,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:02:17,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:02:17,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:02:17,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:02:17,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:02:17,438 INFO L354 Elim1Store]: treesize reduction 268, result has 28.2 percent of original size [2021-10-08 16:02:17,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 11 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 44 case distinctions, treesize of input 116 treesize of output 194 [2021-10-08 16:02:17,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-10-08 16:02:17,935 INFO L354 Elim1Store]: treesize reduction 43, result has 23.2 percent of original size [2021-10-08 16:02:17,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 98 [2021-10-08 16:02:17,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 56 [2021-10-08 16:02:18,184 INFO L354 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2021-10-08 16:02:18,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 149 [2021-10-08 16:02:18,224 INFO L354 Elim1Store]: treesize reduction 132, result has 15.9 percent of original size [2021-10-08 16:02:18,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 194 treesize of output 177 [2021-10-08 16:02:18,240 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-08 16:02:18,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 170 [2021-10-08 16:02:18,954 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-10-08 16:02:18,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 213 treesize of output 156 [2021-10-08 16:02:18,990 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-10-08 16:02:18,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 198 treesize of output 189 [2021-10-08 16:02:19,042 INFO L354 Elim1Store]: treesize reduction 100, result has 20.0 percent of original size [2021-10-08 16:02:19,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 183 treesize of output 185 [2021-10-08 16:02:20,103 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-10-08 16:02:20,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 196 treesize of output 147 [2021-10-08 16:02:20,140 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-10-08 16:02:20,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 181 treesize of output 172 [2021-10-08 16:02:20,172 INFO L354 Elim1Store]: treesize reduction 100, result has 20.0 percent of original size [2021-10-08 16:02:20,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 166 treesize of output 168 [2021-10-08 16:02:21,254 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-10-08 16:02:21,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 179 treesize of output 138 [2021-10-08 16:02:21,292 INFO L354 Elim1Store]: treesize reduction 100, result has 20.0 percent of original size [2021-10-08 16:02:21,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 166 [2021-10-08 16:02:21,325 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-10-08 16:02:21,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 153 treesize of output 144 [2021-10-08 16:02:22,341 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:02:22,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460726218] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:22,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:02:22,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 24 [2021-10-08 16:02:22,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894659753] [2021-10-08 16:02:22,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-08 16:02:22,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:02:22,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-08 16:02:22,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=574, Unknown=0, NotChecked=0, Total=650 [2021-10-08 16:02:22,343 INFO L87 Difference]: Start difference. First operand 12163 states and 42226 transitions. Second operand has 26 states, 25 states have (on average 1.52) internal successors, (38), 25 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:02:35,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:02:35,024 INFO L93 Difference]: Finished difference Result 28722 states and 99498 transitions. [2021-10-08 16:02:35,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 16:02:35,024 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.52) internal successors, (38), 25 states have internal predecessors, (38), 0 states have call successors, (0), 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 19 [2021-10-08 16:02:35,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:02:35,122 INFO L225 Difference]: With dead ends: 28722 [2021-10-08 16:02:35,123 INFO L226 Difference]: Without dead ends: 28722 [2021-10-08 16:02:35,123 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4130.8ms TimeCoverageRelationStatistics Valid=178, Invalid=1082, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 16:02:35,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28722 states. [2021-10-08 16:02:35,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28722 to 12166. [2021-10-08 16:02:35,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12166 states, 12062 states have (on average 3.501243574863207) internal successors, (42232), 12165 states have internal predecessors, (42232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:02:35,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12166 states to 12166 states and 42232 transitions. [2021-10-08 16:02:35,510 INFO L78 Accepts]: Start accepts. Automaton has 12166 states and 42232 transitions. Word has length 19 [2021-10-08 16:02:35,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:02:35,510 INFO L470 AbstractCegarLoop]: Abstraction has 12166 states and 42232 transitions. [2021-10-08 16:02:35,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.52) internal successors, (38), 25 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:02:35,510 INFO L276 IsEmpty]: Start isEmpty. Operand 12166 states and 42232 transitions. [2021-10-08 16:02:35,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 16:02:35,513 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:02:35,513 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:02:35,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-10-08 16:02:35,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-10-08 16:02:35,719 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:02:35,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:02:35,719 INFO L82 PathProgramCache]: Analyzing trace with hash -2077133216, now seen corresponding path program 1 times [2021-10-08 16:02:35,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:02:35,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019735318] [2021-10-08 16:02:35,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:35,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:02:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:35,838 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:02:35,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:02:35,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019735318] [2021-10-08 16:02:35,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019735318] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:35,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931952537] [2021-10-08 16:02:35,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:35,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:02:35,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:02:35,843 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:02:35,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-08 16:02:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:36,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-08 16:02:36,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:02:36,699 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:02:36,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931952537] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:36,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:02:36,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-10-08 16:02:36,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724827025] [2021-10-08 16:02:36,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-08 16:02:36,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:02:36,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-08 16:02:36,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-10-08 16:02:36,702 INFO L87 Difference]: Start difference. First operand 12166 states and 42232 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:02:37,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:02:37,233 INFO L93 Difference]: Finished difference Result 27089 states and 93205 transitions. [2021-10-08 16:02:37,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 16:02:37,233 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-08 16:02:37,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:02:37,327 INFO L225 Difference]: With dead ends: 27089 [2021-10-08 16:02:37,327 INFO L226 Difference]: Without dead ends: 26895 [2021-10-08 16:02:37,327 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 220.6ms TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2021-10-08 16:02:37,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26895 states. [2021-10-08 16:02:37,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26895 to 20070. [2021-10-08 16:02:37,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20070 states, 19966 states have (on average 3.631122908945207) internal successors, (72499), 20069 states have internal predecessors, (72499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:02:37,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20070 states to 20070 states and 72499 transitions. [2021-10-08 16:02:37,833 INFO L78 Accepts]: Start accepts. Automaton has 20070 states and 72499 transitions. Word has length 19 [2021-10-08 16:02:37,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:02:37,834 INFO L470 AbstractCegarLoop]: Abstraction has 20070 states and 72499 transitions. [2021-10-08 16:02:37,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:02:37,834 INFO L276 IsEmpty]: Start isEmpty. Operand 20070 states and 72499 transitions. [2021-10-08 16:02:37,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 16:02:37,837 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:02:37,838 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:02:37,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-08 16:02:38,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,21 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:02:38,039 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:02:38,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:02:38,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1910961503, now seen corresponding path program 1 times [2021-10-08 16:02:38,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:02:38,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479132865] [2021-10-08 16:02:38,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:38,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:02:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:38,841 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:02:38,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:02:38,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479132865] [2021-10-08 16:02:38,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479132865] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:38,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849579740] [2021-10-08 16:02:38,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:38,842 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:02:38,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:02:38,844 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:02:38,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-08 16:02:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:39,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-08 16:02:39,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:02:39,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:02:39,600 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:02:39,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:02:39,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 16:02:39,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 74 [2021-10-08 16:02:39,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 83 [2021-10-08 16:02:39,794 INFO L354 Elim1Store]: treesize reduction 65, result has 18.8 percent of original size [2021-10-08 16:02:39,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 63 [2021-10-08 16:02:39,918 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:02:39,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 78 [2021-10-08 16:02:39,936 INFO L354 Elim1Store]: treesize reduction 49, result has 23.4 percent of original size [2021-10-08 16:02:39,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 90 [2021-10-08 16:02:39,952 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:02:39,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 68 [2021-10-08 16:02:41,105 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:02:41,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 75 [2021-10-08 16:02:41,118 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:02:41,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 48 [2021-10-08 16:02:41,322 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:02:41,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849579740] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:41,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:02:41,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 26 [2021-10-08 16:02:41,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592257669] [2021-10-08 16:02:41,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-08 16:02:41,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:02:41,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-08 16:02:41,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=696, Unknown=0, NotChecked=0, Total=756 [2021-10-08 16:02:41,325 INFO L87 Difference]: Start difference. First operand 20070 states and 72499 transitions. Second operand has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:02:46,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:02:46,367 INFO L93 Difference]: Finished difference Result 37901 states and 138724 transitions. [2021-10-08 16:02:46,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 16:02:46,367 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 states have internal predecessors, (38), 0 states have call successors, (0), 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 19 [2021-10-08 16:02:46,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:02:46,515 INFO L225 Difference]: With dead ends: 37901 [2021-10-08 16:02:46,515 INFO L226 Difference]: Without dead ends: 37901 [2021-10-08 16:02:46,516 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 4002.5ms TimeCoverageRelationStatistics Valid=281, Invalid=1441, Unknown=0, NotChecked=0, Total=1722 [2021-10-08 16:02:46,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37901 states. [2021-10-08 16:02:47,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37901 to 20090. [2021-10-08 16:02:47,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20090 states, 19986 states have (on average 3.6298909236465526) internal successors, (72547), 20089 states have internal predecessors, (72547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:02:47,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20090 states to 20090 states and 72547 transitions. [2021-10-08 16:02:47,445 INFO L78 Accepts]: Start accepts. Automaton has 20090 states and 72547 transitions. Word has length 19 [2021-10-08 16:02:47,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:02:47,445 INFO L470 AbstractCegarLoop]: Abstraction has 20090 states and 72547 transitions. [2021-10-08 16:02:47,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:02:47,445 INFO L276 IsEmpty]: Start isEmpty. Operand 20090 states and 72547 transitions. [2021-10-08 16:02:47,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 16:02:47,450 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:02:47,451 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:02:47,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-08 16:02:47,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-10-08 16:02:47,665 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:02:47,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:02:47,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1910961167, now seen corresponding path program 1 times [2021-10-08 16:02:47,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:02:47,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83975428] [2021-10-08 16:02:47,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:47,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:02:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:47,703 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-08 16:02:47,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:02:47,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83975428] [2021-10-08 16:02:47,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83975428] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:02:47,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:02:47,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:02:47,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917693306] [2021-10-08 16:02:47,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:02:47,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:02:47,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:02:47,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:02:47,705 INFO L87 Difference]: Start difference. First operand 20090 states and 72547 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:02:48,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:02:48,009 INFO L93 Difference]: Finished difference Result 36047 states and 130330 transitions. [2021-10-08 16:02:48,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:02:48,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-10-08 16:02:48,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:02:48,489 INFO L225 Difference]: With dead ends: 36047 [2021-10-08 16:02:48,489 INFO L226 Difference]: Without dead ends: 36047 [2021-10-08 16:02:48,490 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:02:48,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36047 states. [2021-10-08 16:02:49,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36047 to 29440. [2021-10-08 16:02:49,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29440 states, 29336 states have (on average 3.7823834196891193) internal successors, (110960), 29439 states have internal predecessors, (110960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:02:49,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29440 states to 29440 states and 110960 transitions. [2021-10-08 16:02:49,358 INFO L78 Accepts]: Start accepts. Automaton has 29440 states and 110960 transitions. Word has length 19 [2021-10-08 16:02:49,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:02:49,358 INFO L470 AbstractCegarLoop]: Abstraction has 29440 states and 110960 transitions. [2021-10-08 16:02:49,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:02:49,358 INFO L276 IsEmpty]: Start isEmpty. Operand 29440 states and 110960 transitions. [2021-10-08 16:02:49,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 16:02:49,361 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:02:49,361 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:02:49,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-08 16:02:49,361 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:02:49,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:02:49,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1910961329, now seen corresponding path program 1 times [2021-10-08 16:02:49,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:02:49,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337655483] [2021-10-08 16:02:49,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:49,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:02:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:50,348 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:02:50,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:02:50,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337655483] [2021-10-08 16:02:50,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337655483] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:50,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951983213] [2021-10-08 16:02:50,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:02:50,349 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:02:50,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:02:50,359 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:02:50,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-08 16:02:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:02:51,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-08 16:02:51,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:02:51,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:02:51,164 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:02:51,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:02:51,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 16:02:51,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 76 [2021-10-08 16:02:51,354 INFO L354 Elim1Store]: treesize reduction 65, result has 18.8 percent of original size [2021-10-08 16:02:51,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 69 [2021-10-08 16:02:51,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2021-10-08 16:02:51,511 INFO L354 Elim1Store]: treesize reduction 49, result has 23.4 percent of original size [2021-10-08 16:02:51,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 107 [2021-10-08 16:02:51,529 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:02:51,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 69 [2021-10-08 16:02:51,547 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:02:51,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 70 [2021-10-08 16:02:52,653 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:02:52,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 77 [2021-10-08 16:02:52,667 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:02:52,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 50 [2021-10-08 16:02:52,900 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:02:52,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951983213] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:02:52,901 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:02:52,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 26 [2021-10-08 16:02:52,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50499990] [2021-10-08 16:02:52,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-08 16:02:52,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:02:52,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-08 16:02:52,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=696, Unknown=0, NotChecked=0, Total=756 [2021-10-08 16:02:52,903 INFO L87 Difference]: Start difference. First operand 29440 states and 110960 transitions. Second operand has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:00,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:00,653 INFO L93 Difference]: Finished difference Result 37857 states and 135880 transitions. [2021-10-08 16:03:00,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 16:03:00,654 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 states have internal predecessors, (38), 0 states have call successors, (0), 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 19 [2021-10-08 16:03:00,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:00,790 INFO L225 Difference]: With dead ends: 37857 [2021-10-08 16:03:00,790 INFO L226 Difference]: Without dead ends: 37857 [2021-10-08 16:03:00,791 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 6661.6ms TimeCoverageRelationStatistics Valid=281, Invalid=1441, Unknown=0, NotChecked=0, Total=1722 [2021-10-08 16:03:00,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37857 states. [2021-10-08 16:03:01,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37857 to 29440. [2021-10-08 16:03:01,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29440 states, 29336 states have (on average 3.782315244068721) internal successors, (110958), 29439 states have internal predecessors, (110958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:01,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29440 states to 29440 states and 110958 transitions. [2021-10-08 16:03:01,934 INFO L78 Accepts]: Start accepts. Automaton has 29440 states and 110958 transitions. Word has length 19 [2021-10-08 16:03:01,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:01,934 INFO L470 AbstractCegarLoop]: Abstraction has 29440 states and 110958 transitions. [2021-10-08 16:03:01,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:01,935 INFO L276 IsEmpty]: Start isEmpty. Operand 29440 states and 110958 transitions. [2021-10-08 16:03:01,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 16:03:01,938 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:01,938 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:01,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-08 16:03:02,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-10-08 16:03:02,140 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:03:02,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:02,141 INFO L82 PathProgramCache]: Analyzing trace with hash -890687157, now seen corresponding path program 1 times [2021-10-08 16:03:02,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:02,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456453552] [2021-10-08 16:03:02,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:02,142 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:02,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:03:02,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:02,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456453552] [2021-10-08 16:03:02,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456453552] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:03:02,266 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:03:02,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-08 16:03:02,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572074039] [2021-10-08 16:03:02,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 16:03:02,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:02,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 16:03:02,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-08 16:03:02,268 INFO L87 Difference]: Start difference. First operand 29440 states and 110958 transitions. Second operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:02,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:02,825 INFO L93 Difference]: Finished difference Result 32372 states and 119228 transitions. [2021-10-08 16:03:02,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-08 16:03:02,825 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-10-08 16:03:02,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:03,291 INFO L225 Difference]: With dead ends: 32372 [2021-10-08 16:03:03,291 INFO L226 Difference]: Without dead ends: 32372 [2021-10-08 16:03:03,291 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 171.9ms TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-10-08 16:03:03,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32372 states. [2021-10-08 16:03:03,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32372 to 28389. [2021-10-08 16:03:04,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28389 states, 28285 states have (on average 3.7922220258087327) internal successors, (107263), 28388 states have internal predecessors, (107263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:04,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28389 states to 28389 states and 107263 transitions. [2021-10-08 16:03:04,139 INFO L78 Accepts]: Start accepts. Automaton has 28389 states and 107263 transitions. Word has length 19 [2021-10-08 16:03:04,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:04,139 INFO L470 AbstractCegarLoop]: Abstraction has 28389 states and 107263 transitions. [2021-10-08 16:03:04,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:04,140 INFO L276 IsEmpty]: Start isEmpty. Operand 28389 states and 107263 transitions. [2021-10-08 16:03:04,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 16:03:04,143 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:04,143 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:04,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-08 16:03:04,143 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:03:04,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:04,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1611353575, now seen corresponding path program 1 times [2021-10-08 16:03:04,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:04,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917368926] [2021-10-08 16:03:04,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:04,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:04,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:03:04,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:04,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917368926] [2021-10-08 16:03:04,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917368926] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:04,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408802851] [2021-10-08 16:03:04,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:04,214 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:03:04,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:03:04,215 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:03:04,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-08 16:03:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:04,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-08 16:03:04,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:03:05,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:03:05,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408802851] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:03:05,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:03:05,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 13 [2021-10-08 16:03:05,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209024809] [2021-10-08 16:03:05,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 16:03:05,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:05,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 16:03:05,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-10-08 16:03:05,020 INFO L87 Difference]: Start difference. First operand 28389 states and 107263 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:16,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:16,074 INFO L93 Difference]: Finished difference Result 30688 states and 114129 transitions. [2021-10-08 16:03:16,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-08 16:03:16,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-10-08 16:03:16,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:16,176 INFO L225 Difference]: With dead ends: 30688 [2021-10-08 16:03:16,177 INFO L226 Difference]: Without dead ends: 30349 [2021-10-08 16:03:16,177 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 222.0ms TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2021-10-08 16:03:16,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30349 states. [2021-10-08 16:03:16,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30349 to 29508. [2021-10-08 16:03:17,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29508 states, 29404 states have (on average 3.778907631614746) internal successors, (111115), 29507 states have internal predecessors, (111115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:17,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29508 states to 29508 states and 111115 transitions. [2021-10-08 16:03:17,400 INFO L78 Accepts]: Start accepts. Automaton has 29508 states and 111115 transitions. Word has length 19 [2021-10-08 16:03:17,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:17,400 INFO L470 AbstractCegarLoop]: Abstraction has 29508 states and 111115 transitions. [2021-10-08 16:03:17,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:17,400 INFO L276 IsEmpty]: Start isEmpty. Operand 29508 states and 111115 transitions. [2021-10-08 16:03:17,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 16:03:17,404 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:17,404 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:17,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2021-10-08 16:03:17,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-10-08 16:03:17,605 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:03:17,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:17,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1194174557, now seen corresponding path program 1 times [2021-10-08 16:03:17,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:17,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275166745] [2021-10-08 16:03:17,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:17,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:17,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:03:17,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:17,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275166745] [2021-10-08 16:03:17,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275166745] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:03:17,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:03:17,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-08 16:03:17,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927946086] [2021-10-08 16:03:17,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 16:03:17,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:17,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 16:03:17,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-08 16:03:17,713 INFO L87 Difference]: Start difference. First operand 29508 states and 111115 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:18,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:18,541 INFO L93 Difference]: Finished difference Result 31187 states and 115340 transitions. [2021-10-08 16:03:18,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 16:03:18,541 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-10-08 16:03:18,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:18,980 INFO L225 Difference]: With dead ends: 31187 [2021-10-08 16:03:18,980 INFO L226 Difference]: Without dead ends: 31028 [2021-10-08 16:03:18,981 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 145.0ms TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2021-10-08 16:03:19,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31028 states. [2021-10-08 16:03:19,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31028 to 29506. [2021-10-08 16:03:19,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29506 states, 29402 states have (on average 3.7790286375076527) internal successors, (111111), 29505 states have internal predecessors, (111111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:19,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29506 states to 29506 states and 111111 transitions. [2021-10-08 16:03:19,818 INFO L78 Accepts]: Start accepts. Automaton has 29506 states and 111111 transitions. Word has length 19 [2021-10-08 16:03:19,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:19,819 INFO L470 AbstractCegarLoop]: Abstraction has 29506 states and 111111 transitions. [2021-10-08 16:03:19,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:19,819 INFO L276 IsEmpty]: Start isEmpty. Operand 29506 states and 111111 transitions. [2021-10-08 16:03:19,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 16:03:19,822 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:19,822 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:19,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-08 16:03:19,823 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:03:19,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:19,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1226708061, now seen corresponding path program 2 times [2021-10-08 16:03:19,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:19,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949476042] [2021-10-08 16:03:19,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:19,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:19,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:03:19,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:19,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949476042] [2021-10-08 16:03:19,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949476042] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:03:19,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:03:19,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-08 16:03:19,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879663825] [2021-10-08 16:03:19,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-08 16:03:19,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:19,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-08 16:03:19,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-10-08 16:03:19,961 INFO L87 Difference]: Start difference. First operand 29506 states and 111111 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:20,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:20,979 INFO L93 Difference]: Finished difference Result 29644 states and 110676 transitions. [2021-10-08 16:03:20,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 16:03:20,980 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-10-08 16:03:20,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:21,082 INFO L225 Difference]: With dead ends: 29644 [2021-10-08 16:03:21,082 INFO L226 Difference]: Without dead ends: 29493 [2021-10-08 16:03:21,083 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 187.1ms TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2021-10-08 16:03:21,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29493 states. [2021-10-08 16:03:21,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29493 to 28565. [2021-10-08 16:03:21,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28565 states, 28461 states have (on average 3.790696040195355) internal successors, (107887), 28564 states have internal predecessors, (107887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:21,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28565 states to 28565 states and 107887 transitions. [2021-10-08 16:03:21,931 INFO L78 Accepts]: Start accepts. Automaton has 28565 states and 107887 transitions. Word has length 19 [2021-10-08 16:03:21,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:21,934 INFO L470 AbstractCegarLoop]: Abstraction has 28565 states and 107887 transitions. [2021-10-08 16:03:21,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:21,934 INFO L276 IsEmpty]: Start isEmpty. Operand 28565 states and 107887 transitions. [2021-10-08 16:03:21,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:03:21,938 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:21,938 INFO L512 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:21,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-10-08 16:03:21,938 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:03:21,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:21,939 INFO L82 PathProgramCache]: Analyzing trace with hash 202778637, now seen corresponding path program 6 times [2021-10-08 16:03:21,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:21,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111589417] [2021-10-08 16:03:21,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:21,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:24,015 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:03:24,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:24,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111589417] [2021-10-08 16:03:24,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111589417] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:24,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546346823] [2021-10-08 16:03:24,016 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 16:03:24,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:03:24,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:03:24,018 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:03:24,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-08 16:03:25,286 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-10-08 16:03:25,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:03:25,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 66 conjunts are in the unsatisfiable core [2021-10-08 16:03:25,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:03:25,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:03:25,451 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:03:25,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:03:25,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 16:03:25,718 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-10-08 16:03:25,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 16:03:25,917 INFO L354 Elim1Store]: treesize reduction 80, result has 20.0 percent of original size [2021-10-08 16:03:25,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 41 [2021-10-08 16:03:26,096 INFO L354 Elim1Store]: treesize reduction 152, result has 17.4 percent of original size [2021-10-08 16:03:26,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 56 [2021-10-08 16:03:26,331 INFO L354 Elim1Store]: treesize reduction 164, result has 17.6 percent of original size [2021-10-08 16:03:26,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 59 [2021-10-08 16:03:26,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 120 [2021-10-08 16:03:26,598 INFO L354 Elim1Store]: treesize reduction 616, result has 12.0 percent of original size [2021-10-08 16:03:26,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 149 treesize of output 141 [2021-10-08 16:03:26,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 122 [2021-10-08 16:03:26,826 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:03:26,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 229 treesize of output 153 [2021-10-08 16:03:26,921 INFO L354 Elim1Store]: treesize reduction 656, result has 15.9 percent of original size [2021-10-08 16:03:26,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 225 [2021-10-08 16:03:26,943 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:03:26,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 203 treesize of output 159 [2021-10-08 16:03:27,232 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:03:27,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 216 treesize of output 148 [2021-10-08 16:03:27,328 INFO L354 Elim1Store]: treesize reduction 656, result has 15.9 percent of original size [2021-10-08 16:03:27,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 212 [2021-10-08 16:03:27,347 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:03:27,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 190 treesize of output 146 [2021-10-08 16:03:27,578 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:03:27,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 203 treesize of output 143 [2021-10-08 16:03:27,659 INFO L354 Elim1Store]: treesize reduction 656, result has 15.9 percent of original size [2021-10-08 16:03:27,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 199 [2021-10-08 16:03:27,678 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:03:27,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 177 treesize of output 133 [2021-10-08 16:03:27,963 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:03:27,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546346823] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:27,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:03:27,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2021-10-08 16:03:27,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795193355] [2021-10-08 16:03:27,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-08 16:03:27,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:27,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-08 16:03:27,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-10-08 16:03:27,966 INFO L87 Difference]: Start difference. First operand 28565 states and 107887 transitions. Second operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:33,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:03:33,958 INFO L93 Difference]: Finished difference Result 62886 states and 239056 transitions. [2021-10-08 16:03:33,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 16:03:33,959 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-08 16:03:33,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:03:34,494 INFO L225 Difference]: With dead ends: 62886 [2021-10-08 16:03:34,494 INFO L226 Difference]: Without dead ends: 62886 [2021-10-08 16:03:34,495 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 3267.0ms TimeCoverageRelationStatistics Valid=148, Invalid=1184, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 16:03:34,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62886 states. [2021-10-08 16:03:35,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62886 to 28567. [2021-10-08 16:03:35,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28567 states, 28463 states have (on average 3.7905702139619857) internal successors, (107891), 28566 states have internal predecessors, (107891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:36,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28567 states to 28567 states and 107891 transitions. [2021-10-08 16:03:36,107 INFO L78 Accepts]: Start accepts. Automaton has 28567 states and 107891 transitions. Word has length 20 [2021-10-08 16:03:36,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:03:36,108 INFO L470 AbstractCegarLoop]: Abstraction has 28567 states and 107891 transitions. [2021-10-08 16:03:36,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:03:36,108 INFO L276 IsEmpty]: Start isEmpty. Operand 28567 states and 107891 transitions. [2021-10-08 16:03:36,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:03:36,113 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:03:36,113 INFO L512 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:03:36,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-08 16:03:36,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-10-08 16:03:36,326 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:03:36,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:03:36,327 INFO L82 PathProgramCache]: Analyzing trace with hash -689035316, now seen corresponding path program 4 times [2021-10-08 16:03:36,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:03:36,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484509290] [2021-10-08 16:03:36,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:03:36,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:03:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:03:39,991 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:03:39,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:03:39,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484509290] [2021-10-08 16:03:39,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484509290] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:39,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652015906] [2021-10-08 16:03:39,992 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 16:03:39,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:03:39,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:03:39,993 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:03:39,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-08 16:03:40,951 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 16:03:40,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:03:40,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 61 conjunts are in the unsatisfiable core [2021-10-08 16:03:40,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:03:41,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:03:41,179 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:03:41,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:03:41,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-10-08 16:03:41,455 INFO L354 Elim1Store]: treesize reduction 42, result has 22.2 percent of original size [2021-10-08 16:03:41,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-10-08 16:03:41,654 INFO L354 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2021-10-08 16:03:41,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 41 [2021-10-08 16:03:41,863 INFO L354 Elim1Store]: treesize reduction 98, result has 31.0 percent of original size [2021-10-08 16:03:41,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 83 [2021-10-08 16:03:42,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 129 [2021-10-08 16:03:42,305 INFO L354 Elim1Store]: treesize reduction 448, result has 13.3 percent of original size [2021-10-08 16:03:42,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 150 treesize of output 139 [2021-10-08 16:03:42,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 123 [2021-10-08 16:03:42,612 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:03:42,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 222 treesize of output 154 [2021-10-08 16:03:42,692 INFO L354 Elim1Store]: treesize reduction 480, result has 17.4 percent of original size [2021-10-08 16:03:42,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 207 treesize of output 215 [2021-10-08 16:03:42,717 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:03:42,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 196 treesize of output 160 [2021-10-08 16:03:43,122 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:03:43,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 209 treesize of output 149 [2021-10-08 16:03:43,199 INFO L354 Elim1Store]: treesize reduction 480, result has 17.4 percent of original size [2021-10-08 16:03:43,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 194 treesize of output 202 [2021-10-08 16:03:43,218 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:03:43,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 183 treesize of output 147 [2021-10-08 16:03:43,595 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:03:43,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 196 treesize of output 144 [2021-10-08 16:03:43,670 INFO L354 Elim1Store]: treesize reduction 480, result has 17.4 percent of original size [2021-10-08 16:03:43,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 181 treesize of output 189 [2021-10-08 16:03:43,695 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:03:43,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 170 treesize of output 134 [2021-10-08 16:03:44,564 INFO L354 Elim1Store]: treesize reduction 236, result has 61.5 percent of original size [2021-10-08 16:03:44,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 226 treesize of output 460 [2021-10-08 16:03:44,589 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-10-08 16:03:44,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 482 treesize of output 357 [2021-10-08 16:03:44,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 354 treesize of output 282 [2021-10-08 16:03:46,640 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:03:46,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652015906] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:03:46,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:03:46,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 28 [2021-10-08 16:03:46,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416170355] [2021-10-08 16:03:46,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-08 16:03:46,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:03:46,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-08 16:03:46,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-10-08 16:03:46,643 INFO L87 Difference]: Start difference. First operand 28567 states and 107891 transitions. Second operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:09,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:09,344 INFO L93 Difference]: Finished difference Result 93068 states and 347198 transitions. [2021-10-08 16:04:09,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-08 16:04:09,345 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 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 20 [2021-10-08 16:04:09,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:09,773 INFO L225 Difference]: With dead ends: 93068 [2021-10-08 16:04:09,773 INFO L226 Difference]: Without dead ends: 92816 [2021-10-08 16:04:09,774 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 10395.9ms TimeCoverageRelationStatistics Valid=397, Invalid=3143, Unknown=0, NotChecked=0, Total=3540 [2021-10-08 16:04:09,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92816 states. [2021-10-08 16:04:11,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92816 to 28567. [2021-10-08 16:04:11,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28567 states, 28463 states have (on average 3.7905702139619857) internal successors, (107891), 28566 states have internal predecessors, (107891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:11,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28567 states to 28567 states and 107891 transitions. [2021-10-08 16:04:11,721 INFO L78 Accepts]: Start accepts. Automaton has 28567 states and 107891 transitions. Word has length 20 [2021-10-08 16:04:11,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:11,721 INFO L470 AbstractCegarLoop]: Abstraction has 28567 states and 107891 transitions. [2021-10-08 16:04:11,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:11,721 INFO L276 IsEmpty]: Start isEmpty. Operand 28567 states and 107891 transitions. [2021-10-08 16:04:11,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:04:11,725 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:11,725 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:11,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2021-10-08 16:04:11,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,26 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:11,925 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:04:11,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:11,926 INFO L82 PathProgramCache]: Analyzing trace with hash 116831470, now seen corresponding path program 7 times [2021-10-08 16:04:11,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:11,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075985206] [2021-10-08 16:04:11,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:11,926 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:12,014 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:04:12,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:12,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075985206] [2021-10-08 16:04:12,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075985206] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:12,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616628270] [2021-10-08 16:04:12,015 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-08 16:04:12,015 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:12,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:12,024 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:04:12,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-08 16:04:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:13,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-08 16:04:13,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:13,254 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:04:13,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616628270] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:13,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:13,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-10-08 16:04:13,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152282855] [2021-10-08 16:04:13,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-08 16:04:13,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:13,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-08 16:04:13,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-10-08 16:04:13,257 INFO L87 Difference]: Start difference. First operand 28567 states and 107891 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:13,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:13,814 INFO L93 Difference]: Finished difference Result 58653 states and 220185 transitions. [2021-10-08 16:04:13,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 16:04:13,815 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 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 20 [2021-10-08 16:04:13,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:14,500 INFO L225 Difference]: With dead ends: 58653 [2021-10-08 16:04:14,500 INFO L226 Difference]: Without dead ends: 58653 [2021-10-08 16:04:14,501 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 114.1ms TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-10-08 16:04:14,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58653 states. [2021-10-08 16:04:15,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58653 to 28584. [2021-10-08 16:04:15,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28584 states, 28480 states have (on average 3.7892907303370786) internal successors, (107919), 28583 states have internal predecessors, (107919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:15,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28584 states to 28584 states and 107919 transitions. [2021-10-08 16:04:15,632 INFO L78 Accepts]: Start accepts. Automaton has 28584 states and 107919 transitions. Word has length 20 [2021-10-08 16:04:15,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:15,632 INFO L470 AbstractCegarLoop]: Abstraction has 28584 states and 107919 transitions. [2021-10-08 16:04:15,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:15,632 INFO L276 IsEmpty]: Start isEmpty. Operand 28584 states and 107919 transitions. [2021-10-08 16:04:15,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:04:15,635 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:15,636 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:15,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-08 16:04:15,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,27 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:15,837 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:04:15,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:15,837 INFO L82 PathProgramCache]: Analyzing trace with hash -439029896, now seen corresponding path program 2 times [2021-10-08 16:04:15,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:15,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268025048] [2021-10-08 16:04:15,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:15,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:17,174 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:04:17,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:17,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268025048] [2021-10-08 16:04:17,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268025048] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:17,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381490643] [2021-10-08 16:04:17,176 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:04:17,176 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:17,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:17,177 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:04:17,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-08 16:04:18,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:04:18,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:04:18,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-08 16:04:18,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:18,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:04:18,162 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:04:18,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:04:18,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 16:04:18,342 INFO L354 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2021-10-08 16:04:18,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 39 [2021-10-08 16:04:18,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 93 [2021-10-08 16:04:18,537 INFO L354 Elim1Store]: treesize reduction 152, result has 18.7 percent of original size [2021-10-08 16:04:18,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 97 [2021-10-08 16:04:18,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 87 [2021-10-08 16:04:18,734 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:04:18,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 102 [2021-10-08 16:04:18,767 INFO L354 Elim1Store]: treesize reduction 184, result has 21.7 percent of original size [2021-10-08 16:04:18,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 125 [2021-10-08 16:04:18,783 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:04:18,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 92 [2021-10-08 16:04:20,846 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:04:20,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 144 treesize of output 107 [2021-10-08 16:04:20,858 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:04:20,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 72 [2021-10-08 16:04:21,185 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:04:21,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381490643] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:21,186 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:21,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 28 [2021-10-08 16:04:21,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915111793] [2021-10-08 16:04:21,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-08 16:04:21,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:21,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-08 16:04:21,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=807, Unknown=0, NotChecked=0, Total=870 [2021-10-08 16:04:21,188 INFO L87 Difference]: Start difference. First operand 28584 states and 107919 transitions. Second operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:52,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:04:52,852 INFO L93 Difference]: Finished difference Result 35252 states and 127365 transitions. [2021-10-08 16:04:52,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-08 16:04:52,852 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 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 20 [2021-10-08 16:04:52,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:04:52,982 INFO L225 Difference]: With dead ends: 35252 [2021-10-08 16:04:52,982 INFO L226 Difference]: Without dead ends: 35252 [2021-10-08 16:04:52,983 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 12149.7ms TimeCoverageRelationStatistics Valid=460, Invalid=2401, Unknown=1, NotChecked=0, Total=2862 [2021-10-08 16:04:53,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35252 states. [2021-10-08 16:04:53,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35252 to 28606. [2021-10-08 16:04:53,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28606 states, 28502 states have (on average 3.7880499614062173) internal successors, (107967), 28605 states have internal predecessors, (107967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:54,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28606 states to 28606 states and 107967 transitions. [2021-10-08 16:04:54,148 INFO L78 Accepts]: Start accepts. Automaton has 28606 states and 107967 transitions. Word has length 20 [2021-10-08 16:04:54,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:04:54,149 INFO L470 AbstractCegarLoop]: Abstraction has 28606 states and 107967 transitions. [2021-10-08 16:04:54,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:04:54,149 INFO L276 IsEmpty]: Start isEmpty. Operand 28606 states and 107967 transitions. [2021-10-08 16:04:54,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:04:54,153 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:04:54,154 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:04:54,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-10-08 16:04:54,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-10-08 16:04:54,367 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:04:54,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:04:54,369 INFO L82 PathProgramCache]: Analyzing trace with hash -439029722, now seen corresponding path program 2 times [2021-10-08 16:04:54,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:04:54,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874308632] [2021-10-08 16:04:54,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:04:54,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:04:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:04:55,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:04:55,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:04:55,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874308632] [2021-10-08 16:04:55,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874308632] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:55,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056811584] [2021-10-08 16:04:55,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:04:55,409 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:04:55,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:04:55,410 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:04:55,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-08 16:04:56,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:04:56,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:04:56,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-08 16:04:56,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:04:56,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:04:56,490 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:04:56,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:04:56,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 16:04:56,705 INFO L354 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2021-10-08 16:04:56,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 43 [2021-10-08 16:04:56,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 97 [2021-10-08 16:04:56,919 INFO L354 Elim1Store]: treesize reduction 152, result has 18.7 percent of original size [2021-10-08 16:04:56,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 101 [2021-10-08 16:04:56,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 91 [2021-10-08 16:04:57,107 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:04:57,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 106 [2021-10-08 16:04:57,139 INFO L354 Elim1Store]: treesize reduction 184, result has 21.7 percent of original size [2021-10-08 16:04:57,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 129 [2021-10-08 16:04:57,157 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:04:57,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 96 [2021-10-08 16:04:59,284 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:04:59,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 148 treesize of output 111 [2021-10-08 16:04:59,298 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:04:59,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 76 [2021-10-08 16:04:59,646 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:04:59,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056811584] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:04:59,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:04:59,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 28 [2021-10-08 16:04:59,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638933181] [2021-10-08 16:04:59,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-08 16:04:59,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:04:59,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-08 16:04:59,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=807, Unknown=0, NotChecked=0, Total=870 [2021-10-08 16:04:59,649 INFO L87 Difference]: Start difference. First operand 28606 states and 107967 transitions. Second operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:05:32,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:05:32,223 INFO L93 Difference]: Finished difference Result 35250 states and 127361 transitions. [2021-10-08 16:05:32,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-08 16:05:32,223 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 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 20 [2021-10-08 16:05:32,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:05:32,498 INFO L225 Difference]: With dead ends: 35250 [2021-10-08 16:05:32,498 INFO L226 Difference]: Without dead ends: 35250 [2021-10-08 16:05:32,499 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 14255.0ms TimeCoverageRelationStatistics Valid=460, Invalid=2400, Unknown=2, NotChecked=0, Total=2862 [2021-10-08 16:05:32,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35250 states. [2021-10-08 16:05:33,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35250 to 28586. [2021-10-08 16:05:33,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28586 states, 28482 states have (on average 3.789165086721438) internal successors, (107923), 28585 states have internal predecessors, (107923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:05:33,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28586 states to 28586 states and 107923 transitions. [2021-10-08 16:05:33,316 INFO L78 Accepts]: Start accepts. Automaton has 28586 states and 107923 transitions. Word has length 20 [2021-10-08 16:05:33,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:05:33,316 INFO L470 AbstractCegarLoop]: Abstraction has 28586 states and 107923 transitions. [2021-10-08 16:05:33,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:05:33,316 INFO L276 IsEmpty]: Start isEmpty. Operand 28586 states and 107923 transitions. [2021-10-08 16:05:33,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:05:33,320 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:05:33,320 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:05:33,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-10-08 16:05:33,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-10-08 16:05:33,521 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:05:33,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:05:33,522 INFO L82 PathProgramCache]: Analyzing trace with hash 941569803, now seen corresponding path program 5 times [2021-10-08 16:05:33,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:05:33,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966861241] [2021-10-08 16:05:33,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:05:33,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:05:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:05:35,047 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:05:35,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:05:35,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966861241] [2021-10-08 16:05:35,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966861241] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:05:35,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942372679] [2021-10-08 16:05:35,048 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-08 16:05:35,049 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:05:35,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:05:35,050 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:05:35,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-08 16:05:36,033 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-08 16:05:36,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:05:36,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 99 conjunts are in the unsatisfiable core [2021-10-08 16:05:36,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:05:36,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:36,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:36,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:36,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:36,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:36,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:36,209 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-08 16:05:36,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 69 treesize of output 97 [2021-10-08 16:05:36,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-08 16:05:37,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:37,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:37,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:37,542 INFO L354 Elim1Store]: treesize reduction 270, result has 19.2 percent of original size [2021-10-08 16:05:37,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 74 treesize of output 120 [2021-10-08 16:05:38,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 86 [2021-10-08 16:05:40,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:40,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:40,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:40,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:40,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:40,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:40,914 INFO L354 Elim1Store]: treesize reduction 290, result has 13.7 percent of original size [2021-10-08 16:05:40,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 106 treesize of output 147 [2021-10-08 16:05:45,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:45,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:45,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:45,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:45,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:45,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:45,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:45,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:45,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:05:45,361 INFO L354 Elim1Store]: treesize reduction 340, result has 13.9 percent of original size [2021-10-08 16:05:45,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 10 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 41 case distinctions, treesize of input 126 treesize of output 174 [2021-10-08 16:05:57,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-10-08 16:05:58,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-08 16:05:58,245 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-10-08 16:05:58,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 154 [2021-10-08 16:05:58,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 147 [2021-10-08 16:06:03,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:06:03,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:06:03,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:06:03,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:06:03,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:06:03,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:06:03,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:06:03,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:06:03,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:06:03,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:06:03,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:06:03,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 16:06:03,571 INFO L354 Elim1Store]: treesize reduction 236, result has 30.8 percent of original size [2021-10-08 16:06:03,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 15 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 40 case distinctions, treesize of input 160 treesize of output 238 [2021-10-08 16:06:04,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 70 [2021-10-08 16:06:04,499 INFO L354 Elim1Store]: treesize reduction 43, result has 23.2 percent of original size [2021-10-08 16:06:04,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 90 [2021-10-08 16:06:04,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-10-08 16:06:05,009 INFO L354 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2021-10-08 16:06:05,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 175 treesize of output 156 [2021-10-08 16:06:05,033 INFO L354 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2021-10-08 16:06:05,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 201 treesize of output 206 [2021-10-08 16:06:05,074 INFO L354 Elim1Store]: treesize reduction 164, result has 16.8 percent of original size [2021-10-08 16:06:05,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 200 treesize of output 183 [2021-10-08 16:06:06,127 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-10-08 16:06:06,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 228 treesize of output 171 [2021-10-08 16:06:06,173 INFO L354 Elim1Store]: treesize reduction 132, result has 20.0 percent of original size [2021-10-08 16:06:06,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 213 treesize of output 215 [2021-10-08 16:06:06,207 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-10-08 16:06:06,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 202 treesize of output 193 [2021-10-08 16:06:08,265 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-10-08 16:06:08,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 210 treesize of output 161 [2021-10-08 16:06:08,314 INFO L354 Elim1Store]: treesize reduction 132, result has 20.0 percent of original size [2021-10-08 16:06:08,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 195 treesize of output 197 [2021-10-08 16:06:08,351 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-10-08 16:06:08,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 175 [2021-10-08 16:06:10,391 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-10-08 16:06:10,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 192 treesize of output 151 [2021-10-08 16:06:10,437 INFO L354 Elim1Store]: treesize reduction 132, result has 20.0 percent of original size [2021-10-08 16:06:10,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 177 treesize of output 179 [2021-10-08 16:06:10,480 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-10-08 16:06:10,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 166 treesize of output 157 [2021-10-08 16:06:12,670 INFO L354 Elim1Store]: treesize reduction 130, result has 40.1 percent of original size [2021-10-08 16:06:12,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 214 treesize of output 228 [2021-10-08 16:06:12,691 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-08 16:06:12,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 218 treesize of output 218 [2021-10-08 16:06:12,727 INFO L354 Elim1Store]: treesize reduction 18, result has 56.1 percent of original size [2021-10-08 16:06:12,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 218 treesize of output 180 [2021-10-08 16:06:13,151 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:06:13,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942372679] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:13,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:06:13,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 29 [2021-10-08 16:06:13,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827421017] [2021-10-08 16:06:13,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-08 16:06:13,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:06:13,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-08 16:06:13,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=839, Unknown=0, NotChecked=0, Total=930 [2021-10-08 16:06:13,153 INFO L87 Difference]: Start difference. First operand 28586 states and 107923 transitions. Second operand has 31 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:06:52,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:06:52,227 INFO L93 Difference]: Finished difference Result 89929 states and 335461 transitions. [2021-10-08 16:06:52,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-08 16:06:52,228 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 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 20 [2021-10-08 16:06:52,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:06:52,633 INFO L225 Difference]: With dead ends: 89929 [2021-10-08 16:06:52,633 INFO L226 Difference]: Without dead ends: 89677 [2021-10-08 16:06:52,634 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 9508.0ms TimeCoverageRelationStatistics Valid=336, Invalid=2744, Unknown=0, NotChecked=0, Total=3080 [2021-10-08 16:06:52,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89677 states. [2021-10-08 16:06:54,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89677 to 28586. [2021-10-08 16:06:54,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28586 states, 28482 states have (on average 3.789165086721438) internal successors, (107923), 28585 states have internal predecessors, (107923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:06:54,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28586 states to 28586 states and 107923 transitions. [2021-10-08 16:06:54,268 INFO L78 Accepts]: Start accepts. Automaton has 28586 states and 107923 transitions. Word has length 20 [2021-10-08 16:06:54,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:06:54,268 INFO L470 AbstractCegarLoop]: Abstraction has 28586 states and 107923 transitions. [2021-10-08 16:06:54,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:06:54,268 INFO L276 IsEmpty]: Start isEmpty. Operand 28586 states and 107923 transitions. [2021-10-08 16:06:54,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:06:54,272 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:06:54,272 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:06:54,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-10-08 16:06:54,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,30 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:06:54,473 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:06:54,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:06:54,474 INFO L82 PathProgramCache]: Analyzing trace with hash 562780976, now seen corresponding path program 1 times [2021-10-08 16:06:54,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:06:54,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649245418] [2021-10-08 16:06:54,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:06:54,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:06:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:06:55,775 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:06:55,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:06:55,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649245418] [2021-10-08 16:06:55,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649245418] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:55,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098669441] [2021-10-08 16:06:55,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:06:55,776 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:06:55,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:06:55,779 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:06:55,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-08 16:06:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:06:56,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 52 conjunts are in the unsatisfiable core [2021-10-08 16:06:56,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:06:56,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:06:57,040 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:06:57,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:06:57,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 16:06:57,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 79 [2021-10-08 16:06:57,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 96 [2021-10-08 16:06:57,299 INFO L354 Elim1Store]: treesize reduction 65, result has 18.8 percent of original size [2021-10-08 16:06:57,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 76 [2021-10-08 16:06:57,458 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:06:57,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 83 [2021-10-08 16:06:57,478 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:06:57,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 92 [2021-10-08 16:06:57,496 INFO L354 Elim1Store]: treesize reduction 49, result has 23.4 percent of original size [2021-10-08 16:06:57,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 88 [2021-10-08 16:06:57,671 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:06:57,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 78 [2021-10-08 16:06:57,689 INFO L354 Elim1Store]: treesize reduction 49, result has 23.4 percent of original size [2021-10-08 16:06:57,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 90 [2021-10-08 16:06:57,706 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:06:57,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 68 [2021-10-08 16:06:58,951 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:06:58,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 75 [2021-10-08 16:06:58,962 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:06:58,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 48 [2021-10-08 16:06:59,185 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:06:59,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098669441] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:06:59,186 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:06:59,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 28 [2021-10-08 16:06:59,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044398867] [2021-10-08 16:06:59,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-08 16:06:59,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:06:59,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-08 16:06:59,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2021-10-08 16:06:59,188 INFO L87 Difference]: Start difference. First operand 28586 states and 107923 transitions. Second operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:07:06,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:07:06,991 INFO L93 Difference]: Finished difference Result 37046 states and 132739 transitions. [2021-10-08 16:07:06,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 16:07:06,991 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 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 20 [2021-10-08 16:07:06,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:07:07,117 INFO L225 Difference]: With dead ends: 37046 [2021-10-08 16:07:07,117 INFO L226 Difference]: Without dead ends: 37046 [2021-10-08 16:07:07,118 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 4463.2ms TimeCoverageRelationStatistics Valid=306, Invalid=1586, Unknown=0, NotChecked=0, Total=1892 [2021-10-08 16:07:07,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37046 states. [2021-10-08 16:07:07,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37046 to 29276. [2021-10-08 16:07:07,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29276 states, 29172 states have (on average 3.778520499108734) internal successors, (110227), 29275 states have internal predecessors, (110227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:07:08,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29276 states to 29276 states and 110227 transitions. [2021-10-08 16:07:08,081 INFO L78 Accepts]: Start accepts. Automaton has 29276 states and 110227 transitions. Word has length 20 [2021-10-08 16:07:08,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:07:08,082 INFO L470 AbstractCegarLoop]: Abstraction has 29276 states and 110227 transitions. [2021-10-08 16:07:08,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:07:08,082 INFO L276 IsEmpty]: Start isEmpty. Operand 29276 states and 110227 transitions. [2021-10-08 16:07:08,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:07:08,086 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:07:08,086 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:07:08,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-10-08 16:07:08,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-10-08 16:07:08,287 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:07:08,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:07:08,288 INFO L82 PathProgramCache]: Analyzing trace with hash 562781150, now seen corresponding path program 1 times [2021-10-08 16:07:08,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:07:08,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661177799] [2021-10-08 16:07:08,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:07:08,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:07:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:07:09,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:07:09,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:07:09,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661177799] [2021-10-08 16:07:09,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661177799] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:09,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273319650] [2021-10-08 16:07:09,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:07:09,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:07:09,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:07:09,136 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:07:09,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-08 16:07:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:07:10,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 52 conjunts are in the unsatisfiable core [2021-10-08 16:07:10,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:07:10,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:07:10,638 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:07:10,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:07:10,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 16:07:10,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 81 [2021-10-08 16:07:10,870 INFO L354 Elim1Store]: treesize reduction 65, result has 18.8 percent of original size [2021-10-08 16:07:10,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 82 [2021-10-08 16:07:10,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 75 [2021-10-08 16:07:11,019 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:07:11,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 85 [2021-10-08 16:07:11,039 INFO L354 Elim1Store]: treesize reduction 49, result has 23.4 percent of original size [2021-10-08 16:07:11,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 105 [2021-10-08 16:07:11,057 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:07:11,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 83 [2021-10-08 16:07:11,221 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:07:11,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 80 [2021-10-08 16:07:11,243 INFO L354 Elim1Store]: treesize reduction 49, result has 23.4 percent of original size [2021-10-08 16:07:11,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 92 [2021-10-08 16:07:11,259 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:07:11,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 70 [2021-10-08 16:07:12,285 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:07:12,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 77 [2021-10-08 16:07:12,298 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:07:12,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 50 [2021-10-08 16:07:12,527 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:07:12,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273319650] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:12,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:07:12,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 28 [2021-10-08 16:07:12,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121542486] [2021-10-08 16:07:12,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-08 16:07:12,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:07:12,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-08 16:07:12,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2021-10-08 16:07:12,530 INFO L87 Difference]: Start difference. First operand 29276 states and 110227 transitions. Second operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:07:22,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:07:22,726 INFO L93 Difference]: Finished difference Result 36970 states and 132509 transitions. [2021-10-08 16:07:22,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 16:07:22,727 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 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 20 [2021-10-08 16:07:22,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:07:22,864 INFO L225 Difference]: With dead ends: 36970 [2021-10-08 16:07:22,864 INFO L226 Difference]: Without dead ends: 36970 [2021-10-08 16:07:22,865 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 6479.7ms TimeCoverageRelationStatistics Valid=306, Invalid=1585, Unknown=1, NotChecked=0, Total=1892 [2021-10-08 16:07:22,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36970 states. [2021-10-08 16:07:23,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36970 to 29276. [2021-10-08 16:07:23,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29276 states, 29172 states have (on average 3.775915261209379) internal successors, (110151), 29275 states have internal predecessors, (110151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:07:24,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29276 states to 29276 states and 110151 transitions. [2021-10-08 16:07:24,058 INFO L78 Accepts]: Start accepts. Automaton has 29276 states and 110151 transitions. Word has length 20 [2021-10-08 16:07:24,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:07:24,059 INFO L470 AbstractCegarLoop]: Abstraction has 29276 states and 110151 transitions. [2021-10-08 16:07:24,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:07:24,060 INFO L276 IsEmpty]: Start isEmpty. Operand 29276 states and 110151 transitions. [2021-10-08 16:07:24,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:07:24,065 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:07:24,066 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:07:24,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-10-08 16:07:24,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,32 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:07:24,281 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:07:24,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:07:24,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1329296460, now seen corresponding path program 2 times [2021-10-08 16:07:24,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:07:24,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56646474] [2021-10-08 16:07:24,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:07:24,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:07:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:07:25,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:07:25,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:07:25,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56646474] [2021-10-08 16:07:25,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56646474] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:25,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027633257] [2021-10-08 16:07:25,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:07:25,345 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:07:25,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:07:25,346 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:07:25,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-08 16:07:26,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:07:26,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:07:26,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 55 conjunts are in the unsatisfiable core [2021-10-08 16:07:26,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:07:26,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 319 treesize of output 303 [2021-10-08 16:07:26,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:07:26,951 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:07:26,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:07:27,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-10-08 16:07:27,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 91 [2021-10-08 16:07:27,295 INFO L354 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2021-10-08 16:07:27,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 92 [2021-10-08 16:07:27,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 85 [2021-10-08 16:07:27,729 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:07:27,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 101 [2021-10-08 16:07:27,752 INFO L354 Elim1Store]: treesize reduction 85, result has 24.1 percent of original size [2021-10-08 16:07:27,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 121 [2021-10-08 16:07:27,781 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:07:27,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 99 [2021-10-08 16:07:31,986 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:07:31,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 162 treesize of output 134 [2021-10-08 16:07:32,044 INFO L354 Elim1Store]: treesize reduction 248, result has 16.8 percent of original size [2021-10-08 16:07:32,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 147 treesize of output 136 [2021-10-08 16:07:32,065 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:07:32,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 136 treesize of output 124 [2021-10-08 16:07:32,513 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:07:32,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 92 [2021-10-08 16:07:32,588 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:07:32,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 65 [2021-10-08 16:07:34,408 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:07:34,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027633257] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:07:34,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:07:34,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 30 [2021-10-08 16:07:34,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104579051] [2021-10-08 16:07:34,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-08 16:07:34,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:07:34,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-08 16:07:34,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=922, Unknown=2, NotChecked=0, Total=992 [2021-10-08 16:07:34,410 INFO L87 Difference]: Start difference. First operand 29276 states and 110151 transitions. Second operand has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:08:12,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:08:12,364 INFO L93 Difference]: Finished difference Result 37054 states and 132835 transitions. [2021-10-08 16:08:12,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 16:08:12,365 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 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 20 [2021-10-08 16:08:12,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:08:12,511 INFO L225 Difference]: With dead ends: 37054 [2021-10-08 16:08:12,511 INFO L226 Difference]: Without dead ends: 37054 [2021-10-08 16:08:12,512 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 9965.8ms TimeCoverageRelationStatistics Valid=345, Invalid=1815, Unknown=2, NotChecked=0, Total=2162 [2021-10-08 16:08:12,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37054 states. [2021-10-08 16:08:13,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37054 to 29818. [2021-10-08 16:08:13,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29818 states, 29714 states have (on average 3.764454465908326) internal successors, (111857), 29817 states have internal predecessors, (111857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:08:13,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29818 states to 29818 states and 111857 transitions. [2021-10-08 16:08:13,381 INFO L78 Accepts]: Start accepts. Automaton has 29818 states and 111857 transitions. Word has length 20 [2021-10-08 16:08:13,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:08:13,381 INFO L470 AbstractCegarLoop]: Abstraction has 29818 states and 111857 transitions. [2021-10-08 16:08:13,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:08:13,381 INFO L276 IsEmpty]: Start isEmpty. Operand 29818 states and 111857 transitions. [2021-10-08 16:08:13,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:08:13,385 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:08:13,385 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:08:13,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-10-08 16:08:13,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,33 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:08:13,586 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:08:13,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:08:13,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1329296634, now seen corresponding path program 2 times [2021-10-08 16:08:13,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:08:13,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975863872] [2021-10-08 16:08:13,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:08:13,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:08:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:08:14,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:08:14,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:08:14,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975863872] [2021-10-08 16:08:14,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975863872] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:14,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852452800] [2021-10-08 16:08:14,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:08:14,841 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:08:14,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:08:14,842 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:08:14,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-08 16:08:16,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:08:16,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:08:16,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 55 conjunts are in the unsatisfiable core [2021-10-08 16:08:16,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:08:16,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 83 [2021-10-08 16:08:16,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:08:16,443 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:08:16,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:08:16,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-10-08 16:08:16,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 93 [2021-10-08 16:08:16,772 INFO L354 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2021-10-08 16:08:16,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 70 [2021-10-08 16:08:16,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2021-10-08 16:08:17,029 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:08:17,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 139 treesize of output 103 [2021-10-08 16:08:17,051 INFO L354 Elim1Store]: treesize reduction 85, result has 24.1 percent of original size [2021-10-08 16:08:17,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 124 treesize of output 123 [2021-10-08 16:08:17,071 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:08:17,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 101 [2021-10-08 16:08:19,293 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:08:19,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 136 [2021-10-08 16:08:19,350 INFO L354 Elim1Store]: treesize reduction 248, result has 16.8 percent of original size [2021-10-08 16:08:19,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 149 treesize of output 138 [2021-10-08 16:08:19,371 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:08:19,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 126 [2021-10-08 16:08:19,834 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:08:19,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 94 [2021-10-08 16:08:19,848 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:08:19,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 67 [2021-10-08 16:08:21,543 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:08:21,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852452800] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:21,544 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:08:21,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 30 [2021-10-08 16:08:21,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881833877] [2021-10-08 16:08:21,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-08 16:08:21,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:08:21,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-08 16:08:21,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=923, Unknown=1, NotChecked=0, Total=992 [2021-10-08 16:08:21,545 INFO L87 Difference]: Start difference. First operand 29818 states and 111857 transitions. Second operand has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:08:53,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:08:53,374 INFO L93 Difference]: Finished difference Result 37122 states and 132969 transitions. [2021-10-08 16:08:53,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-08 16:08:53,375 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 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 20 [2021-10-08 16:08:53,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:08:53,512 INFO L225 Difference]: With dead ends: 37122 [2021-10-08 16:08:53,512 INFO L226 Difference]: Without dead ends: 37122 [2021-10-08 16:08:53,513 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 9476.0ms TimeCoverageRelationStatistics Valid=547, Invalid=2644, Unknown=1, NotChecked=0, Total=3192 [2021-10-08 16:08:53,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37122 states. [2021-10-08 16:08:54,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37122 to 29286. [2021-10-08 16:08:54,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29286 states, 29182 states have (on average 3.7753066959084367) internal successors, (110171), 29285 states have internal predecessors, (110171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:08:54,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29286 states to 29286 states and 110171 transitions. [2021-10-08 16:08:54,441 INFO L78 Accepts]: Start accepts. Automaton has 29286 states and 110171 transitions. Word has length 20 [2021-10-08 16:08:54,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:08:54,441 INFO L470 AbstractCegarLoop]: Abstraction has 29286 states and 110171 transitions. [2021-10-08 16:08:54,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:08:54,442 INFO L276 IsEmpty]: Start isEmpty. Operand 29286 states and 110171 transitions. [2021-10-08 16:08:54,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:08:54,445 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:08:54,445 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:08:54,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-10-08 16:08:54,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-10-08 16:08:54,646 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:08:54,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:08:54,647 INFO L82 PathProgramCache]: Analyzing trace with hash 889745910, now seen corresponding path program 3 times [2021-10-08 16:08:54,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:08:54,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413772373] [2021-10-08 16:08:54,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:08:54,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:08:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:08:55,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:08:55,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:08:55,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413772373] [2021-10-08 16:08:55,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413772373] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:55,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228586234] [2021-10-08 16:08:55,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 16:08:55,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:08:55,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:08:55,436 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:08:55,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-08 16:08:56,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-08 16:08:56,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:08:56,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-08 16:08:56,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:08:57,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:08:57,146 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:08:57,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:08:57,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-08 16:08:57,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 79 [2021-10-08 16:08:57,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 96 [2021-10-08 16:08:57,678 INFO L354 Elim1Store]: treesize reduction 65, result has 18.8 percent of original size [2021-10-08 16:08:57,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 76 [2021-10-08 16:08:57,834 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:08:57,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 83 [2021-10-08 16:08:57,859 INFO L354 Elim1Store]: treesize reduction 49, result has 23.4 percent of original size [2021-10-08 16:08:57,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 103 [2021-10-08 16:08:57,877 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:08:57,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 81 [2021-10-08 16:08:59,227 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:08:59,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 85 [2021-10-08 16:08:59,240 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:08:59,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 58 [2021-10-08 16:08:59,548 INFO L354 Elim1Store]: treesize reduction 64, result has 32.6 percent of original size [2021-10-08 16:08:59,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 55 [2021-10-08 16:08:59,645 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:08:59,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228586234] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:08:59,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:08:59,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 28 [2021-10-08 16:08:59,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751876283] [2021-10-08 16:08:59,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-08 16:08:59,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:08:59,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-08 16:08:59,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2021-10-08 16:08:59,648 INFO L87 Difference]: Start difference. First operand 29286 states and 110171 transitions. Second operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:09:10,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:09:10,312 INFO L93 Difference]: Finished difference Result 37274 states and 133429 transitions. [2021-10-08 16:09:10,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-08 16:09:10,313 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 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 20 [2021-10-08 16:09:10,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:09:10,448 INFO L225 Difference]: With dead ends: 37274 [2021-10-08 16:09:10,449 INFO L226 Difference]: Without dead ends: 37274 [2021-10-08 16:09:10,449 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 7291.4ms TimeCoverageRelationStatistics Valid=302, Invalid=1678, Unknown=0, NotChecked=0, Total=1980 [2021-10-08 16:09:10,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37274 states. [2021-10-08 16:09:11,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37274 to 29366. [2021-10-08 16:09:11,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29366 states, 29262 states have (on average 3.7757159455949694) internal successors, (110485), 29365 states have internal predecessors, (110485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:09:11,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29366 states to 29366 states and 110485 transitions. [2021-10-08 16:09:11,309 INFO L78 Accepts]: Start accepts. Automaton has 29366 states and 110485 transitions. Word has length 20 [2021-10-08 16:09:11,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:09:11,309 INFO L470 AbstractCegarLoop]: Abstraction has 29366 states and 110485 transitions. [2021-10-08 16:09:11,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:09:11,310 INFO L276 IsEmpty]: Start isEmpty. Operand 29366 states and 110485 transitions. [2021-10-08 16:09:11,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:09:11,313 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:09:11,313 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:09:11,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2021-10-08 16:09:11,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-10-08 16:09:11,514 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:09:11,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:09:11,515 INFO L82 PathProgramCache]: Analyzing trace with hash 889746084, now seen corresponding path program 3 times [2021-10-08 16:09:11,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:09:11,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746105931] [2021-10-08 16:09:11,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:09:11,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:09:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:09:12,660 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:09:12,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:09:12,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746105931] [2021-10-08 16:09:12,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746105931] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:09:12,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438001399] [2021-10-08 16:09:12,660 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 16:09:12,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:09:12,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:09:12,661 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:09:12,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-08 16:09:14,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-08 16:09:14,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:09:14,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-08 16:09:14,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:09:14,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:09:14,414 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:09:14,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:09:14,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-08 16:09:14,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 81 [2021-10-08 16:09:14,670 INFO L354 Elim1Store]: treesize reduction 65, result has 18.8 percent of original size [2021-10-08 16:09:14,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 82 [2021-10-08 16:09:14,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 75 [2021-10-08 16:09:14,835 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:09:14,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 85 [2021-10-08 16:09:14,860 INFO L354 Elim1Store]: treesize reduction 49, result has 23.4 percent of original size [2021-10-08 16:09:14,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 105 [2021-10-08 16:09:14,882 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:09:14,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 83 [2021-10-08 16:09:16,467 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:09:16,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 124 treesize of output 87 [2021-10-08 16:09:16,481 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:09:16,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 60 [2021-10-08 16:09:16,798 INFO L354 Elim1Store]: treesize reduction 64, result has 32.6 percent of original size [2021-10-08 16:09:16,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 57 [2021-10-08 16:09:16,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:09:16,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438001399] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:09:16,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:09:16,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 28 [2021-10-08 16:09:16,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645015125] [2021-10-08 16:09:16,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-08 16:09:16,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:09:16,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-08 16:09:16,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2021-10-08 16:09:16,904 INFO L87 Difference]: Start difference. First operand 29366 states and 110485 transitions. Second operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:09:26,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:09:26,511 INFO L93 Difference]: Finished difference Result 37198 states and 133199 transitions. [2021-10-08 16:09:26,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-08 16:09:26,512 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 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 20 [2021-10-08 16:09:26,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:09:26,658 INFO L225 Difference]: With dead ends: 37198 [2021-10-08 16:09:26,658 INFO L226 Difference]: Without dead ends: 37198 [2021-10-08 16:09:26,658 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 5392.0ms TimeCoverageRelationStatistics Valid=302, Invalid=1678, Unknown=0, NotChecked=0, Total=1980 [2021-10-08 16:09:26,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37198 states. [2021-10-08 16:09:27,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37198 to 29290. [2021-10-08 16:09:27,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29290 states, 29186 states have (on average 3.775063386555198) internal successors, (110179), 29289 states have internal predecessors, (110179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:09:27,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29290 states to 29290 states and 110179 transitions. [2021-10-08 16:09:27,545 INFO L78 Accepts]: Start accepts. Automaton has 29290 states and 110179 transitions. Word has length 20 [2021-10-08 16:09:27,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:09:27,545 INFO L470 AbstractCegarLoop]: Abstraction has 29290 states and 110179 transitions. [2021-10-08 16:09:27,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:09:27,546 INFO L276 IsEmpty]: Start isEmpty. Operand 29290 states and 110179 transitions. [2021-10-08 16:09:27,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:09:27,550 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:09:27,550 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:09:27,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2021-10-08 16:09:27,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,36 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:09:27,751 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:09:27,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:09:27,752 INFO L82 PathProgramCache]: Analyzing trace with hash 890186730, now seen corresponding path program 4 times [2021-10-08 16:09:27,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:09:27,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625639488] [2021-10-08 16:09:27,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:09:27,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:09:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:09:28,664 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:09:28,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:09:28,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625639488] [2021-10-08 16:09:28,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625639488] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:09:28,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424993686] [2021-10-08 16:09:28,665 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 16:09:28,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:09:28,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:09:28,666 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:09:28,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-10-08 16:09:30,406 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 16:09:30,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:09:30,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-08 16:09:30,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:09:30,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:09:30,655 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:09:30,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:09:30,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-10-08 16:09:30,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 91 [2021-10-08 16:09:30,947 INFO L354 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2021-10-08 16:09:30,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 92 [2021-10-08 16:09:30,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 85 [2021-10-08 16:09:31,181 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:09:31,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 97 [2021-10-08 16:09:31,202 INFO L354 Elim1Store]: treesize reduction 85, result has 24.1 percent of original size [2021-10-08 16:09:31,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 117 [2021-10-08 16:09:31,223 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:09:31,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 107 treesize of output 95 [2021-10-08 16:09:33,835 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:09:33,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 139 treesize of output 102 [2021-10-08 16:09:33,849 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:09:33,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 75 [2021-10-08 16:09:34,059 INFO L354 Elim1Store]: treesize reduction 92, result has 20.0 percent of original size [2021-10-08 16:09:34,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 54 [2021-10-08 16:09:35,900 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:09:35,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424993686] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:09:35,901 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:09:35,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 30 [2021-10-08 16:09:35,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024292425] [2021-10-08 16:09:35,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-08 16:09:35,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:09:35,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-08 16:09:35,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=917, Unknown=1, NotChecked=0, Total=992 [2021-10-08 16:09:35,902 INFO L87 Difference]: Start difference. First operand 29290 states and 110179 transitions. Second operand has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:10:12,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:10:12,459 INFO L93 Difference]: Finished difference Result 37350 states and 133659 transitions. [2021-10-08 16:10:12,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-08 16:10:12,460 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 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 20 [2021-10-08 16:10:12,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:10:12,599 INFO L225 Difference]: With dead ends: 37350 [2021-10-08 16:10:12,599 INFO L226 Difference]: Without dead ends: 37350 [2021-10-08 16:10:12,599 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 9609.8ms TimeCoverageRelationStatistics Valid=453, Invalid=2198, Unknown=1, NotChecked=0, Total=2652 [2021-10-08 16:10:12,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37350 states. [2021-10-08 16:10:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37350 to 29442. [2021-10-08 16:10:13,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29442 states, 29338 states have (on average 3.773774626763924) internal successors, (110715), 29441 states have internal predecessors, (110715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:10:13,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29442 states to 29442 states and 110715 transitions. [2021-10-08 16:10:13,824 INFO L78 Accepts]: Start accepts. Automaton has 29442 states and 110715 transitions. Word has length 20 [2021-10-08 16:10:13,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:10:13,824 INFO L470 AbstractCegarLoop]: Abstraction has 29442 states and 110715 transitions. [2021-10-08 16:10:13,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:10:13,829 INFO L276 IsEmpty]: Start isEmpty. Operand 29442 states and 110715 transitions. [2021-10-08 16:10:13,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:10:13,837 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:10:13,837 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:10:13,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-10-08 16:10:14,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,37 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:10:14,038 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:10:14,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:10:14,039 INFO L82 PathProgramCache]: Analyzing trace with hash 890186904, now seen corresponding path program 4 times [2021-10-08 16:10:14,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:10:14,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63492601] [2021-10-08 16:10:14,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:10:14,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:10:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:10:14,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:10:14,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:10:14,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63492601] [2021-10-08 16:10:14,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63492601] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:10:14,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481053869] [2021-10-08 16:10:14,973 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-08 16:10:14,973 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:10:14,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:10:14,974 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:10:14,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-10-08 16:10:16,499 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-08 16:10:16,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:10:16,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-08 16:10:16,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:10:16,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:10:16,774 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:10:16,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:10:16,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-10-08 16:10:17,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 93 [2021-10-08 16:10:17,136 INFO L354 Elim1Store]: treesize reduction 77, result has 19.8 percent of original size [2021-10-08 16:10:17,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 70 [2021-10-08 16:10:17,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2021-10-08 16:10:17,429 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:10:17,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 99 [2021-10-08 16:10:17,452 INFO L354 Elim1Store]: treesize reduction 85, result has 24.1 percent of original size [2021-10-08 16:10:17,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 119 [2021-10-08 16:10:17,472 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:10:17,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 97 [2021-10-08 16:10:23,185 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:10:23,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 104 [2021-10-08 16:10:23,204 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:10:23,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 77 [2021-10-08 16:10:23,403 INFO L354 Elim1Store]: treesize reduction 92, result has 20.0 percent of original size [2021-10-08 16:10:23,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 56 [2021-10-08 16:10:23,671 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:10:23,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481053869] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:10:23,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:10:23,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 30 [2021-10-08 16:10:23,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636032343] [2021-10-08 16:10:23,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-08 16:10:23,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:10:23,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-08 16:10:23,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=916, Unknown=2, NotChecked=0, Total=992 [2021-10-08 16:10:23,674 INFO L87 Difference]: Start difference. First operand 29442 states and 110715 transitions. Second operand has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:11:02,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:11:02,019 INFO L93 Difference]: Finished difference Result 37534 states and 134229 transitions. [2021-10-08 16:11:02,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-08 16:11:02,020 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 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 20 [2021-10-08 16:11:02,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:11:02,164 INFO L225 Difference]: With dead ends: 37534 [2021-10-08 16:11:02,164 INFO L226 Difference]: Without dead ends: 37534 [2021-10-08 16:11:02,164 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 14178.6ms TimeCoverageRelationStatistics Valid=597, Invalid=2593, Unknown=2, NotChecked=0, Total=3192 [2021-10-08 16:11:02,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37534 states. [2021-10-08 16:11:02,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37534 to 29290. [2021-10-08 16:11:02,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29290 states, 29186 states have (on average 3.775063386555198) internal successors, (110179), 29289 states have internal predecessors, (110179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:11:03,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29290 states to 29290 states and 110179 transitions. [2021-10-08 16:11:03,331 INFO L78 Accepts]: Start accepts. Automaton has 29290 states and 110179 transitions. Word has length 20 [2021-10-08 16:11:03,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:11:03,332 INFO L470 AbstractCegarLoop]: Abstraction has 29290 states and 110179 transitions. [2021-10-08 16:11:03,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:11:03,332 INFO L276 IsEmpty]: Start isEmpty. Operand 29290 states and 110179 transitions. [2021-10-08 16:11:03,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:11:03,336 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:11:03,336 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:11:03,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2021-10-08 16:11:03,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,38 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:11:03,537 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:11:03,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:11:03,538 INFO L82 PathProgramCache]: Analyzing trace with hash 408097122, now seen corresponding path program 1 times [2021-10-08 16:11:03,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:11:03,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325490163] [2021-10-08 16:11:03,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:11:03,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:11:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:11:03,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:11:03,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:11:03,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325490163] [2021-10-08 16:11:03,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325490163] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:11:03,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:11:03,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-08 16:11:03,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960486674] [2021-10-08 16:11:03,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 16:11:03,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:11:03,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 16:11:03,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-08 16:11:03,620 INFO L87 Difference]: Start difference. First operand 29290 states and 110179 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:11:04,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:11:04,221 INFO L93 Difference]: Finished difference Result 29628 states and 110979 transitions. [2021-10-08 16:11:04,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 16:11:04,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2021-10-08 16:11:04,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:11:04,624 INFO L225 Difference]: With dead ends: 29628 [2021-10-08 16:11:04,624 INFO L226 Difference]: Without dead ends: 29472 [2021-10-08 16:11:04,624 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 129.9ms TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-10-08 16:11:04,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29472 states. [2021-10-08 16:11:05,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29472 to 29278. [2021-10-08 16:11:05,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29278 states, 29174 states have (on average 3.7753821896208954) internal successors, (110143), 29277 states have internal predecessors, (110143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:11:05,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29278 states to 29278 states and 110143 transitions. [2021-10-08 16:11:05,494 INFO L78 Accepts]: Start accepts. Automaton has 29278 states and 110143 transitions. Word has length 20 [2021-10-08 16:11:05,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:11:05,494 INFO L470 AbstractCegarLoop]: Abstraction has 29278 states and 110143 transitions. [2021-10-08 16:11:05,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:11:05,494 INFO L276 IsEmpty]: Start isEmpty. Operand 29278 states and 110143 transitions. [2021-10-08 16:11:05,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 16:11:05,498 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:11:05,498 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:11:05,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-10-08 16:11:05,498 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:11:05,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:11:05,499 INFO L82 PathProgramCache]: Analyzing trace with hash 772705008, now seen corresponding path program 2 times [2021-10-08 16:11:05,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:11:05,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438329093] [2021-10-08 16:11:05,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:11:05,499 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:11:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:11:05,585 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:11:05,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:11:05,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438329093] [2021-10-08 16:11:05,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438329093] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:11:05,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160360362] [2021-10-08 16:11:05,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:11:05,587 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:11:05,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:11:05,588 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:11:05,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-08 16:11:07,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 16:11:07,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:11:07,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-08 16:11:07,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:11:07,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 207 treesize of output 199 [2021-10-08 16:11:07,309 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-08 16:11:07,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-08 16:11:07,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:11:07,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160360362] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:11:07,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:11:07,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 15 [2021-10-08 16:11:07,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269068536] [2021-10-08 16:11:07,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-08 16:11:07,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:11:07,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-08 16:11:07,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-10-08 16:11:07,470 INFO L87 Difference]: Start difference. First operand 29278 states and 110143 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:11:09,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:11:09,717 INFO L93 Difference]: Finished difference Result 28992 states and 109067 transitions. [2021-10-08 16:11:09,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 16:11:09,718 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2021-10-08 16:11:09,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:11:09,824 INFO L225 Difference]: With dead ends: 28992 [2021-10-08 16:11:09,825 INFO L226 Difference]: Without dead ends: 28769 [2021-10-08 16:11:09,825 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 566.2ms TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2021-10-08 16:11:09,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28769 states. [2021-10-08 16:11:10,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28769 to 28767. [2021-10-08 16:11:10,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28767 states, 28663 states have (on average 3.78383281582528) internal successors, (108456), 28766 states have internal predecessors, (108456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:11:10,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28767 states to 28767 states and 108456 transitions. [2021-10-08 16:11:10,711 INFO L78 Accepts]: Start accepts. Automaton has 28767 states and 108456 transitions. Word has length 20 [2021-10-08 16:11:10,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:11:10,711 INFO L470 AbstractCegarLoop]: Abstraction has 28767 states and 108456 transitions. [2021-10-08 16:11:10,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:11:10,711 INFO L276 IsEmpty]: Start isEmpty. Operand 28767 states and 108456 transitions. [2021-10-08 16:11:10,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-08 16:11:10,716 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:11:10,716 INFO L512 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:11:10,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2021-10-08 16:11:10,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,39 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:11:10,917 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:11:10,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:11:10,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1411981802, now seen corresponding path program 8 times [2021-10-08 16:11:10,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:11:10,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101712172] [2021-10-08 16:11:10,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:11:10,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:11:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:11:14,673 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:11:14,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:11:14,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101712172] [2021-10-08 16:11:14,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101712172] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:11:14,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330463842] [2021-10-08 16:11:14,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:11:14,674 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:11:14,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:11:14,675 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:11:14,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-10-08 16:11:16,495 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 16:11:16,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:11:16,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 72 conjunts are in the unsatisfiable core [2021-10-08 16:11:16,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:11:16,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:11:16,703 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:11:16,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:11:16,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-08 16:11:17,012 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-10-08 16:11:17,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 16:11:17,207 INFO L354 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2021-10-08 16:11:17,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2021-10-08 16:11:17,413 INFO L354 Elim1Store]: treesize reduction 122, result has 17.6 percent of original size [2021-10-08 16:11:17,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 50 [2021-10-08 16:11:17,645 INFO L354 Elim1Store]: treesize reduction 206, result has 15.6 percent of original size [2021-10-08 16:11:17,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 65 [2021-10-08 16:11:17,937 INFO L354 Elim1Store]: treesize reduction 236, result has 15.7 percent of original size [2021-10-08 16:11:17,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 71 [2021-10-08 16:11:18,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 129 [2021-10-08 16:11:18,264 INFO L354 Elim1Store]: treesize reduction 824, result has 10.9 percent of original size [2021-10-08 16:11:18,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 166 treesize of output 161 [2021-10-08 16:11:18,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 139 [2021-10-08 16:11:18,509 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:11:18,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 254 treesize of output 170 [2021-10-08 16:11:18,634 INFO L354 Elim1Store]: treesize reduction 872, result has 14.6 percent of original size [2021-10-08 16:11:18,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 239 treesize of output 253 [2021-10-08 16:11:18,654 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:11:18,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 228 treesize of output 176 [2021-10-08 16:11:18,951 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:11:18,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 241 treesize of output 165 [2021-10-08 16:11:19,078 INFO L354 Elim1Store]: treesize reduction 872, result has 14.6 percent of original size [2021-10-08 16:11:19,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 226 treesize of output 240 [2021-10-08 16:11:19,098 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:11:19,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 215 treesize of output 163 [2021-10-08 16:11:19,379 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:11:19,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 228 treesize of output 160 [2021-10-08 16:11:19,508 INFO L354 Elim1Store]: treesize reduction 872, result has 14.6 percent of original size [2021-10-08 16:11:19,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 213 treesize of output 227 [2021-10-08 16:11:19,529 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:11:19,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 202 treesize of output 150 [2021-10-08 16:11:19,793 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:11:19,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330463842] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:11:19,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:11:19,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2021-10-08 16:11:19,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817310950] [2021-10-08 16:11:19,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-08 16:11:19,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:11:19,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-08 16:11:19,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2021-10-08 16:11:19,795 INFO L87 Difference]: Start difference. First operand 28767 states and 108456 transitions. Second operand has 29 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:11:28,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:11:28,426 INFO L93 Difference]: Finished difference Result 66374 states and 251130 transitions. [2021-10-08 16:11:28,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-08 16:11:28,427 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 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 21 [2021-10-08 16:11:28,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:11:28,713 INFO L225 Difference]: With dead ends: 66374 [2021-10-08 16:11:28,713 INFO L226 Difference]: Without dead ends: 66374 [2021-10-08 16:11:28,713 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 5531.6ms TimeCoverageRelationStatistics Valid=188, Invalid=1618, Unknown=0, NotChecked=0, Total=1806 [2021-10-08 16:11:29,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66374 states. [2021-10-08 16:11:30,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66374 to 28769. [2021-10-08 16:11:30,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28769 states, 28665 states have (on average 3.7837083551369264) internal successors, (108460), 28768 states have internal predecessors, (108460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:11:30,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28769 states to 28769 states and 108460 transitions. [2021-10-08 16:11:30,213 INFO L78 Accepts]: Start accepts. Automaton has 28769 states and 108460 transitions. Word has length 21 [2021-10-08 16:11:30,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:11:30,213 INFO L470 AbstractCegarLoop]: Abstraction has 28769 states and 108460 transitions. [2021-10-08 16:11:30,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:11:30,213 INFO L276 IsEmpty]: Start isEmpty. Operand 28769 states and 108460 transitions. [2021-10-08 16:11:30,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-08 16:11:30,217 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:11:30,217 INFO L512 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:11:30,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2021-10-08 16:11:30,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,40 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:11:30,419 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:11:30,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:11:30,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1991171541, now seen corresponding path program 6 times [2021-10-08 16:11:30,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:11:30,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712304372] [2021-10-08 16:11:30,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:11:30,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:11:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:11:34,140 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:11:34,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:11:34,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712304372] [2021-10-08 16:11:34,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712304372] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:11:34,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811100231] [2021-10-08 16:11:34,140 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-08 16:11:34,141 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:11:34,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:11:34,142 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:11:34,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-10-08 16:11:36,496 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-10-08 16:11:36,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:11:36,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 94 conjunts are in the unsatisfiable core [2021-10-08 16:11:36,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:11:36,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:11:36,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-08 16:11:36,927 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-10-08 16:11:36,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-10-08 16:11:37,111 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-10-08 16:11:37,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-10-08 16:11:37,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-10-08 16:11:37,595 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-10-08 16:11:37,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-08 16:11:37,841 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-10-08 16:11:37,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 44 [2021-10-08 16:11:38,142 INFO L354 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2021-10-08 16:11:38,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 55 [2021-10-08 16:11:38,509 INFO L354 Elim1Store]: treesize reduction 156, result has 27.4 percent of original size [2021-10-08 16:11:38,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 103 [2021-10-08 16:11:39,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 144 [2021-10-08 16:11:39,095 INFO L354 Elim1Store]: treesize reduction 470, result has 15.5 percent of original size [2021-10-08 16:11:39,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 205 [2021-10-08 16:11:39,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 186 [2021-10-08 16:11:39,553 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:11:39,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 266 treesize of output 182 [2021-10-08 16:11:39,655 INFO L354 Elim1Store]: treesize reduction 670, result has 15.8 percent of original size [2021-10-08 16:11:39,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 251 treesize of output 262 [2021-10-08 16:11:39,681 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:11:39,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 240 treesize of output 196 [2021-10-08 16:11:40,317 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:11:40,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 253 treesize of output 177 [2021-10-08 16:11:40,421 INFO L354 Elim1Store]: treesize reduction 670, result has 15.8 percent of original size [2021-10-08 16:11:40,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 238 treesize of output 249 [2021-10-08 16:11:40,449 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:11:40,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 227 treesize of output 183 [2021-10-08 16:11:41,072 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:11:41,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 240 treesize of output 172 [2021-10-08 16:11:41,173 INFO L354 Elim1Store]: treesize reduction 670, result has 15.8 percent of original size [2021-10-08 16:11:41,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 225 treesize of output 236 [2021-10-08 16:11:41,199 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:11:41,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 170 [2021-10-08 16:11:44,458 INFO L354 Elim1Store]: treesize reduction 506, result has 37.5 percent of original size [2021-10-08 16:11:44,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 28 case distinctions, treesize of input 269 treesize of output 413 [2021-10-08 16:11:44,488 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-10-08 16:11:44,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 447 treesize of output 330 [2021-10-08 16:11:44,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 327 treesize of output 271 [2021-10-08 16:11:45,787 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:11:45,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811100231] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:11:45,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:11:45,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 34 [2021-10-08 16:11:45,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110551797] [2021-10-08 16:11:45,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-10-08 16:11:45,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:11:45,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-10-08 16:11:45,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=1170, Unknown=1, NotChecked=0, Total=1260 [2021-10-08 16:11:45,789 INFO L87 Difference]: Start difference. First operand 28769 states and 108460 transitions. Second operand has 36 states, 35 states have (on average 1.2) internal successors, (42), 35 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:09,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:09,446 INFO L93 Difference]: Finished difference Result 85964 states and 317679 transitions. [2021-10-08 16:12:09,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-08 16:12:09,447 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.2) internal successors, (42), 35 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-08 16:12:09,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:10,186 INFO L225 Difference]: With dead ends: 85964 [2021-10-08 16:12:10,187 INFO L226 Difference]: Without dead ends: 85712 [2021-10-08 16:12:10,187 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 13854.5ms TimeCoverageRelationStatistics Valid=452, Invalid=3579, Unknown=1, NotChecked=0, Total=4032 [2021-10-08 16:12:10,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85712 states. [2021-10-08 16:12:11,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85712 to 31496. [2021-10-08 16:12:11,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31496 states, 31392 states have (on average 3.8198267074413863) internal successors, (119912), 31495 states have internal predecessors, (119912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:11,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31496 states to 31496 states and 119912 transitions. [2021-10-08 16:12:11,948 INFO L78 Accepts]: Start accepts. Automaton has 31496 states and 119912 transitions. Word has length 21 [2021-10-08 16:12:11,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:11,948 INFO L470 AbstractCegarLoop]: Abstraction has 31496 states and 119912 transitions. [2021-10-08 16:12:11,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.2) internal successors, (42), 35 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:11,948 INFO L276 IsEmpty]: Start isEmpty. Operand 31496 states and 119912 transitions. [2021-10-08 16:12:11,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-08 16:12:11,952 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:11,952 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:12:11,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2021-10-08 16:12:12,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,41 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:12,153 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2021-10-08 16:12:12,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:12,154 INFO L82 PathProgramCache]: Analyzing trace with hash -2053790335, now seen corresponding path program 3 times [2021-10-08 16:12:12,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:12,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908666133] [2021-10-08 16:12:12,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:12,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:14,575 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:14,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:14,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908666133] [2021-10-08 16:12:14,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908666133] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:14,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937589309] [2021-10-08 16:12:14,575 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 16:12:14,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:14,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:14,577 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:12:14,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-10-08 16:12:16,695 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-08 16:12:16,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:12:16,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-08 16:12:16,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:16,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-08 16:12:16,885 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-08 16:12:16,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-08 16:12:16,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-08 16:12:17,113 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-10-08 16:12:17,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-08 16:12:17,280 INFO L354 Elim1Store]: treesize reduction 52, result has 35.8 percent of original size [2021-10-08 16:12:17,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 57 [2021-10-08 16:12:17,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 102 [2021-10-08 16:12:17,558 INFO L354 Elim1Store]: treesize reduction 246, result has 17.4 percent of original size [2021-10-08 16:12:17,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 131 treesize of output 117 [2021-10-08 16:12:17,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 104 [2021-10-08 16:12:17,918 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:12:17,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 119 [2021-10-08 16:12:17,971 INFO L354 Elim1Store]: treesize reduction 318, result has 19.3 percent of original size [2021-10-08 16:12:17,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 148 treesize of output 153 [2021-10-08 16:12:17,990 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-08 16:12:17,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 109 [2021-10-08 16:12:20,434 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:12:20,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 169 treesize of output 124 [2021-10-08 16:12:20,448 INFO L354 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2021-10-08 16:12:20,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 81 [2021-10-08 16:12:20,907 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-08 16:12:20,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937589309] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:20,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:12:20,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 34 [2021-10-08 16:12:20,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547642168] [2021-10-08 16:12:20,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-10-08 16:12:20,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:20,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-10-08 16:12:20,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1179, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 16:12:20,909 INFO L87 Difference]: Start difference. First operand 31496 states and 119912 transitions. Second operand has 36 states, 35 states have (on average 1.2) internal successors, (42), 35 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-10-08 16:12:29,568 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-08 16:12:29,568 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-08 16:12:30,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2021-10-08 16:12:30,769 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-08 16:12:30,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2021-10-08 16:12:30,794 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-10-08 16:12:30,795 WARN L594 AbstractCegarLoop]: Verification canceled: while executing Executor. [2021-10-08 16:12:30,796 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,796 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,796 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,797 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,797 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,797 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,797 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,797 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,797 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,797 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,797 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,798 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,798 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,798 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,798 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,798 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,798 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,799 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,799 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,799 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,799 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-08 16:12:30,799 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-08 16:12:30,799 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-08 16:12:30,799 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,799 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,799 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,799 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,800 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,800 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,800 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,800 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,800 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,800 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,800 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:30,807 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-08 16:12:30,807 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-08 16:12:30,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 04:12:30 BasicIcfg [2021-10-08 16:12:30,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-08 16:12:30,809 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.witnessprinter [2021-10-08 16:12:30,810 INFO L168 Benchmark]: Toolchain (without parser) took 750749.41 ms. Allocated memory was 155.2 MB in the beginning and 6.3 GB in the end (delta: 6.2 GB). Free memory was 129.9 MB in the beginning and 4.4 GB in the end (delta: -4.3 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. [2021-10-08 16:12:30,810 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 155.2 MB. Free memory is still 128.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-08 16:12:30,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.37 ms. Allocated memory is still 155.2 MB. Free memory was 129.4 MB in the beginning and 117.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:30,811 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.39 ms. Allocated memory is still 155.2 MB. Free memory was 117.5 MB in the beginning and 114.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:30,811 INFO L168 Benchmark]: Boogie Preprocessor took 47.23 ms. Allocated memory is still 155.2 MB. Free memory was 114.8 MB in the beginning and 112.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:30,811 INFO L168 Benchmark]: RCFGBuilder took 884.19 ms. Allocated memory is still 155.2 MB. Free memory was 112.6 MB in the beginning and 120.2 MB in the end (delta: -7.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:30,811 INFO L168 Benchmark]: TraceAbstraction took 749411.18 ms. Allocated memory was 155.2 MB in the beginning and 6.3 GB in the end (delta: 6.2 GB). Free memory was 119.7 MB in the beginning and 4.4 GB in the end (delta: -4.3 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. [2021-10-08 16:12:30,812 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 155.2 MB. Free memory is still 128.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 327.37 ms. Allocated memory is still 155.2 MB. Free memory was 129.4 MB in the beginning and 117.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 60.39 ms. Allocated memory is still 155.2 MB. Free memory was 117.5 MB in the beginning and 114.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.23 ms. Allocated memory is still 155.2 MB. Free memory was 114.8 MB in the beginning and 112.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 884.19 ms. Allocated memory is still 155.2 MB. Free memory was 112.6 MB in the beginning and 120.2 MB in the end (delta: -7.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 749411.18 ms. Allocated memory was 155.2 MB in the beginning and 6.3 GB in the end (delta: 6.2 GB). Free memory was 119.7 MB in the beginning and 4.4 GB in the end (delta: -4.3 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16355.7ms, 356 PlacesBefore, 75 PlacesAfterwards, 381 TransitionsBefore, 76 TransitionsAfterwards, 22110 CoEnabledTransitionPairs, 8 FixpointIterations, 183 TrivialSequentialCompositions, 135 ConcurrentSequentialCompositions, 41 TrivialYvCompositions, 50 ConcurrentYvCompositions, 24 ChoiceCompositions, 433 TotalNumberOfCompositions, 40592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26976, positive: 26539, positive conditional: 0, positive unconditional: 26539, negative: 437, negative conditional: 0, negative unconditional: 437, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16693, positive: 16542, positive conditional: 0, positive unconditional: 16542, negative: 151, negative conditional: 0, negative unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16693, positive: 16528, positive conditional: 0, positive unconditional: 16528, negative: 165, negative conditional: 0, negative unconditional: 165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 165, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 151, negative conditional: 0, negative unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 401, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 374, negative conditional: 0, negative unconditional: 374, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 26976, positive: 9997, positive conditional: 0, positive unconditional: 9997, negative: 286, negative conditional: 0, negative unconditional: 286, unknown: 16693, unknown conditional: 0, unknown unconditional: 16693] , Statistics on independence cache: Total cache size (in pairs): 958, Positive cache size: 909, Positive conditional cache size: 0, Positive unconditional cache size: 909, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 69]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 69]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 113]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 113]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 113]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 113]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 113]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 113]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 500 locations, 35 error locations. Started 1 CEGAR loops. OverallTime: 749015.8ms, OverallIterations: 58, TraceHistogramMax: 6, EmptinessCheckTime: 213.9ms, AutomataDifference: 466613.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16674.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5314 SDtfs, 21878 SDslu, 39755 SDs, 0 SdLazy, 82881 SolverSat, 1700 SolverUnsat, 58 SolverUnknown, 0 SolverNotchecked, 302951.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1685 GetRequests, 291 SyntacticMatches, 14 SemanticMatches, 1380 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6384 ImplicationChecksByTransitivity, 178890.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=31496occurred in iteration=57, InterpolantAutomatonStates: 729, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 41556.0ms AutomataMinimizationTime, 57 MinimizatonAttempts, 649525 StatesRemovedByMinimization, 52 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1043.2ms SsaConstructionTime, 8558.2ms SatisfiabilityAnalysisTime, 177387.8ms InterpolantComputationTime, 1576 NumberOfCodeBlocks, 1560 NumberOfCodeBlocksAsserted, 137 NumberOfCheckSat, 1477 ConstructedInterpolants, 284 QuantifiedInterpolants, 67927 SizeOfPredicates, 841 NumberOfNonLiveVariables, 9955 ConjunctsInSsa, 1663 ConjunctsInUnsatCore, 99 InterpolantComputations, 25 PerfectInterpolantSequences, 195/582 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown