/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-more-sorted.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 15:07:33,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 15:07:33,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 15:07:33,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-07 15:07:33,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-07 15:07:33,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-07 15:07:33,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-07 15:07:33,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-07 15:07:33,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-07 15:07:33,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-07 15:07:33,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-07 15:07:33,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-07 15:07:33,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-07 15:07:33,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-07 15:07:33,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-07 15:07:33,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-07 15:07:33,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-07 15:07:33,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-07 15:07:33,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-07 15:07:33,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-07 15:07:33,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-07 15:07:33,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-07 15:07:33,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-07 15:07:33,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-07 15:07:33,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-07 15:07:33,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-07 15:07:33,806 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-07 15:07:33,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-07 15:07:33,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-07 15:07:33,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-07 15:07:33,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-07 15:07:33,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-07 15:07:33,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-07 15:07:33,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-07 15:07:33,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-07 15:07:33,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-07 15:07:33,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-07 15:07:33,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-07 15:07:33,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 15:07:33,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 15:07:33,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 15:07:33,820 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-07 15:07:33,879 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 15:07:33,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 15:07:33,879 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 15:07:33,880 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 15:07:33,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 15:07:33,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 15:07:33,885 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 15:07:33,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 15:07:33,886 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 15:07:33,886 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 15:07:33,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 15:07:33,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 15:07:33,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 15:07:33,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-07 15:07:33,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 15:07:33,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-07 15:07:33,888 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-07 15:07:33,888 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 15:07:33,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-07 15:07:33,888 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 15:07:33,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-07 15:07:33,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 15:07:33,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 15:07:33,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 15:07:33,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:07:33,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 15:07:33,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 15:07:33,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-07 15:07:33,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-07 15:07:33,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-07 15:07:33,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-07 15:07:33,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 15:07:33,891 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 15:07:34,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 15:07:34,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 15:07:34,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 15:07:34,263 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 15:07:34,264 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 15:07:34,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-sorted.wvr.c [2021-10-07 15:07:34,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd2590e95/0a100ab1425b4143be758d514c453784/FLAGe23901ff9 [2021-10-07 15:07:35,070 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 15:07:35,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-sorted.wvr.c [2021-10-07 15:07:35,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd2590e95/0a100ab1425b4143be758d514c453784/FLAGe23901ff9 [2021-10-07 15:07:35,402 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd2590e95/0a100ab1425b4143be758d514c453784 [2021-10-07 15:07:35,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 15:07:35,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-07 15:07:35,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 15:07:35,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 15:07:35,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 15:07:35,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:07:35" (1/1) ... [2021-10-07 15:07:35,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f865dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:35, skipping insertion in model container [2021-10-07 15:07:35,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:07:35" (1/1) ... [2021-10-07 15:07:35,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 15:07:35,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 15:07:35,649 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-more-sorted.wvr.c[2422,2435] [2021-10-07 15:07:35,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:07:35,680 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 15:07:35,747 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-more-sorted.wvr.c[2422,2435] [2021-10-07 15:07:35,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:07:35,778 INFO L208 MainTranslator]: Completed translation [2021-10-07 15:07:35,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:35 WrapperNode [2021-10-07 15:07:35,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 15:07:35,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 15:07:35,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 15:07:35,782 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 15:07:35,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:35" (1/1) ... [2021-10-07 15:07:35,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:35" (1/1) ... [2021-10-07 15:07:35,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 15:07:35,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 15:07:35,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 15:07:35,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 15:07:35,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:35" (1/1) ... [2021-10-07 15:07:35,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:35" (1/1) ... [2021-10-07 15:07:35,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:35" (1/1) ... [2021-10-07 15:07:35,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:35" (1/1) ... [2021-10-07 15:07:35,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:35" (1/1) ... [2021-10-07 15:07:35,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:35" (1/1) ... [2021-10-07 15:07:35,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:35" (1/1) ... [2021-10-07 15:07:35,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 15:07:35,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 15:07:35,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 15:07:35,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 15:07:35,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:35" (1/1) ... [2021-10-07 15:07:35,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:07:35,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:07:35,956 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) [2021-10-07 15:07:35,972 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 [2021-10-07 15:07:36,036 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 15:07:36,037 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 15:07:36,037 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 15:07:36,038 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 15:07:36,038 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-07 15:07:36,039 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-07 15:07:36,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-07 15:07:36,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 15:07:36,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-07 15:07:36,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-07 15:07:36,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 15:07:36,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 15:07:36,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-07 15:07:36,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 15:07:36,043 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 15:07:36,588 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 15:07:36,589 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-07 15:07:36,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:07:36 BoogieIcfgContainer [2021-10-07 15:07:36,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 15:07:36,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 15:07:36,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 15:07:36,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 15:07:36,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:07:35" (1/3) ... [2021-10-07 15:07:36,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b53056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:07:36, skipping insertion in model container [2021-10-07 15:07:36,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:35" (2/3) ... [2021-10-07 15:07:36,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b53056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:07:36, skipping insertion in model container [2021-10-07 15:07:36,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:07:36" (3/3) ... [2021-10-07 15:07:36,601 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-sorted.wvr.c [2021-10-07 15:07:36,607 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-07 15:07:36,607 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 15:07:36,607 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2021-10-07 15:07:36,608 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 15:07:36,654 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,655 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,655 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,656 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,656 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,656 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,656 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,657 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,657 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,657 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,657 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,659 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,659 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,659 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,660 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,660 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,660 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,660 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,661 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,661 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,661 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,662 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,662 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,662 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,662 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,663 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,663 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,663 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,664 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,664 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,664 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,664 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,665 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,665 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,665 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,666 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,666 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,666 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,666 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,667 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,667 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,667 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,667 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,668 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,668 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,668 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,668 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,669 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,669 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,669 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,669 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,670 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,670 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,670 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,670 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,671 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,671 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,671 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,671 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,672 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,673 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,673 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,673 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,674 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,674 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,674 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,677 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,677 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,677 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,678 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,678 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,678 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,678 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,679 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,679 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,679 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,680 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,680 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,680 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,681 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,681 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,681 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,682 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,682 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,682 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,682 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,683 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,683 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,683 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,683 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,683 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,684 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,685 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,685 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,685 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,686 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,686 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,686 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,686 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,687 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,687 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,687 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,687 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,688 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,688 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,688 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,688 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,689 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,689 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,689 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,689 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,691 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,691 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,692 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,692 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,692 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,692 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,693 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,693 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,693 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,693 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,694 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,697 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,697 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,697 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,698 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,698 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,698 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,698 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,698 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,699 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,699 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,699 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,699 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,700 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,700 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,700 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,700 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,700 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,700 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,701 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,701 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,701 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,701 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,701 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,701 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,702 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,702 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,702 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,702 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,703 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,703 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,703 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,703 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,703 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,704 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,705 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,705 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,705 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,705 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,705 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,706 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,706 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,706 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,706 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,707 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,707 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,707 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,707 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,707 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,708 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,708 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,711 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,712 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,712 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,712 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,713 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,713 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,713 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,718 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,718 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,718 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,718 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,719 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,719 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,719 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,721 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,721 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,721 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,722 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,722 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,722 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,722 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:07:36,731 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-07 15:07:36,786 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 15:07:36,793 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 [2021-10-07 15:07:36,794 INFO L340 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2021-10-07 15:07:36,813 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 15:07:36,826 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 200 places, 205 transitions, 434 flow [2021-10-07 15:07:36,830 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 200 places, 205 transitions, 434 flow [2021-10-07 15:07:36,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 200 places, 205 transitions, 434 flow [2021-10-07 15:07:36,929 INFO L129 PetriNetUnfolder]: 15/202 cut-off events. [2021-10-07 15:07:36,929 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-07 15:07:36,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 202 events. 15/202 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 348 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 147. Up to 2 conditions per place. [2021-10-07 15:07:36,948 INFO L116 LiptonReduction]: Number of co-enabled transitions 7406 [2021-10-07 15:07:45,905 INFO L131 LiptonReduction]: Checked pairs total: 8993 [2021-10-07 15:07:45,905 INFO L133 LiptonReduction]: Total number of compositions: 224 [2021-10-07 15:07:45,915 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 51 transitions, 126 flow [2021-10-07 15:07:46,041 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2181 states, 1935 states have (on average 4.034108527131783) internal successors, (7806), 2180 states have internal predecessors, (7806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:46,051 INFO L276 IsEmpty]: Start isEmpty. Operand has 2181 states, 1935 states have (on average 4.034108527131783) internal successors, (7806), 2180 states have internal predecessors, (7806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:46,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 15:07:46,057 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:46,058 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 15:07:46,058 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:46,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:46,064 INFO L82 PathProgramCache]: Analyzing trace with hash 26291, now seen corresponding path program 1 times [2021-10-07 15:07:46,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:46,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971784998] [2021-10-07 15:07:46,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:46,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:46,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:07:46,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:46,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971784998] [2021-10-07 15:07:46,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971784998] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:07:46,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:07:46,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-07 15:07:46,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139122217] [2021-10-07 15:07:46,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:07:46,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:46,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:07:46,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:07:46,303 INFO L87 Difference]: Start difference. First operand has 2181 states, 1935 states have (on average 4.034108527131783) internal successors, (7806), 2180 states have internal predecessors, (7806), 0 states have call successors, (0), 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) [2021-10-07 15:07:46,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:46,434 INFO L93 Difference]: Finished difference Result 3195 states and 11407 transitions. [2021-10-07 15:07:46,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:07:46,436 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 [2021-10-07 15:07:46,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:46,507 INFO L225 Difference]: With dead ends: 3195 [2021-10-07 15:07:46,507 INFO L226 Difference]: Without dead ends: 3195 [2021-10-07 15:07:46,509 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:07:46,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3195 states. [2021-10-07 15:07:46,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3195 to 1600. [2021-10-07 15:07:46,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1449 states have (on average 3.9385783298826778) internal successors, (5707), 1599 states have internal predecessors, (5707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:46,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 5707 transitions. [2021-10-07 15:07:46,684 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 5707 transitions. Word has length 2 [2021-10-07 15:07:46,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:46,685 INFO L470 AbstractCegarLoop]: Abstraction has 1600 states and 5707 transitions. [2021-10-07 15:07:46,685 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) [2021-10-07 15:07:46,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 5707 transitions. [2021-10-07 15:07:46,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:07:46,686 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:46,686 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:07:46,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-07 15:07:46,687 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:46,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:46,688 INFO L82 PathProgramCache]: Analyzing trace with hash 815830, now seen corresponding path program 1 times [2021-10-07 15:07:46,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:46,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077963469] [2021-10-07 15:07:46,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:46,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:46,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:07:46,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:46,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077963469] [2021-10-07 15:07:46,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077963469] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:07:46,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:07:46,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:07:46,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225191519] [2021-10-07 15:07:46,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:07:46,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:46,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:07:46,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:07:46,747 INFO L87 Difference]: Start difference. First operand 1600 states and 5707 transitions. Second operand has 3 states, 2 states have (on average 1.5) 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) [2021-10-07 15:07:46,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:46,788 INFO L93 Difference]: Finished difference Result 1599 states and 5706 transitions. [2021-10-07 15:07:46,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:07:46,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) 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 [2021-10-07 15:07:46,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:46,808 INFO L225 Difference]: With dead ends: 1599 [2021-10-07 15:07:46,808 INFO L226 Difference]: Without dead ends: 1599 [2021-10-07 15:07:46,809 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:07:46,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2021-10-07 15:07:46,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1599. [2021-10-07 15:07:46,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1599 states, 1449 states have (on average 3.937888198757764) internal successors, (5706), 1598 states have internal predecessors, (5706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:46,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1599 states to 1599 states and 5706 transitions. [2021-10-07 15:07:46,903 INFO L78 Accepts]: Start accepts. Automaton has 1599 states and 5706 transitions. Word has length 3 [2021-10-07 15:07:46,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:46,903 INFO L470 AbstractCegarLoop]: Abstraction has 1599 states and 5706 transitions. [2021-10-07 15:07:46,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) 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) [2021-10-07 15:07:46,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1599 states and 5706 transitions. [2021-10-07 15:07:46,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:07:46,906 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:46,906 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:07:46,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-07 15:07:46,909 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:46,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:46,921 INFO L82 PathProgramCache]: Analyzing trace with hash 815786, now seen corresponding path program 1 times [2021-10-07 15:07:46,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:46,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284860662] [2021-10-07 15:07:46,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:46,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:47,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:07:47,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:47,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284860662] [2021-10-07 15:07:47,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284860662] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:07:47,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584276927] [2021-10-07 15:07:47,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:47,013 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:07:47,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:07:47,015 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) [2021-10-07 15:07:47,037 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 [2021-10-07 15:07:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:47,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:07:47,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:07:47,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:07:47,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584276927] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:07:47,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:07:47,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-07 15:07:47,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664424963] [2021-10-07 15:07:47,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:07:47,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:47,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:07:47,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:07:47,244 INFO L87 Difference]: Start difference. First operand 1599 states and 5706 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) [2021-10-07 15:07:47,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:47,396 INFO L93 Difference]: Finished difference Result 4790 states and 17108 transitions. [2021-10-07 15:07:47,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:07:47,397 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 [2021-10-07 15:07:47,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:47,466 INFO L225 Difference]: With dead ends: 4790 [2021-10-07 15:07:47,470 INFO L226 Difference]: Without dead ends: 4790 [2021-10-07 15:07:47,471 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:07:47,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4790 states. [2021-10-07 15:07:47,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4790 to 1600. [2021-10-07 15:07:47,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1450 states have (on average 3.936551724137931) internal successors, (5708), 1599 states have internal predecessors, (5708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:47,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 5708 transitions. [2021-10-07 15:07:47,605 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 5708 transitions. Word has length 3 [2021-10-07 15:07:47,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:47,606 INFO L470 AbstractCegarLoop]: Abstraction has 1600 states and 5708 transitions. [2021-10-07 15:07:47,606 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) [2021-10-07 15:07:47,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 5708 transitions. [2021-10-07 15:07:47,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-07 15:07:47,607 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:47,607 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-07 15:07:47,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-07 15:07:47,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:07:47,822 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:47,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:47,824 INFO L82 PathProgramCache]: Analyzing trace with hash 25291495, now seen corresponding path program 2 times [2021-10-07 15:07:47,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:47,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283963777] [2021-10-07 15:07:47,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:47,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:47,878 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:07:47,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:47,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283963777] [2021-10-07 15:07:47,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283963777] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:07:47,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887966846] [2021-10-07 15:07:47,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:07:47,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:07:47,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:07:47,881 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) [2021-10-07 15:07:47,898 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 [2021-10-07 15:07:47,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:07:47,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:07:47,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-07 15:07:47,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:07:47,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-07 15:07:47,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887966846] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:07:47,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:07:47,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-07 15:07:47,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115859209] [2021-10-07 15:07:47,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:07:47,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:47,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:07:47,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:07:47,989 INFO L87 Difference]: Start difference. First operand 1600 states and 5708 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) [2021-10-07 15:07:48,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:48,023 INFO L93 Difference]: Finished difference Result 1599 states and 5707 transitions. [2021-10-07 15:07:48,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:07:48,024 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 [2021-10-07 15:07:48,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:48,050 INFO L225 Difference]: With dead ends: 1599 [2021-10-07 15:07:48,051 INFO L226 Difference]: Without dead ends: 1599 [2021-10-07 15:07:48,051 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 [2021-10-07 15:07:48,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2021-10-07 15:07:48,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1597. [2021-10-07 15:07:48,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 1448 states have (on average 3.93853591160221) internal successors, (5703), 1596 states have internal predecessors, (5703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:48,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 5703 transitions. [2021-10-07 15:07:48,120 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 5703 transitions. Word has length 4 [2021-10-07 15:07:48,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:48,120 INFO L470 AbstractCegarLoop]: Abstraction has 1597 states and 5703 transitions. [2021-10-07 15:07:48,120 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) [2021-10-07 15:07:48,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 5703 transitions. [2021-10-07 15:07:48,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:07:48,121 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:48,122 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:07:48,157 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 [2021-10-07 15:07:48,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:07:48,338 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:48,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:48,340 INFO L82 PathProgramCache]: Analyzing trace with hash 784117076, now seen corresponding path program 1 times [2021-10-07 15:07:48,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:48,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8874388] [2021-10-07 15:07:48,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:48,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:48,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:07:48,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:48,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8874388] [2021-10-07 15:07:48,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8874388] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:07:48,378 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:07:48,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-07 15:07:48,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605471463] [2021-10-07 15:07:48,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:07:48,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:48,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:07:48,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:07:48,380 INFO L87 Difference]: Start difference. First operand 1597 states and 5703 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2021-10-07 15:07:48,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:48,410 INFO L93 Difference]: Finished difference Result 1269 states and 4525 transitions. [2021-10-07 15:07:48,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:07:48,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2021-10-07 15:07:48,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:48,420 INFO L225 Difference]: With dead ends: 1269 [2021-10-07 15:07:48,421 INFO L226 Difference]: Without dead ends: 1269 [2021-10-07 15:07:48,421 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:07:48,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2021-10-07 15:07:48,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1269. [2021-10-07 15:07:48,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1170 states have (on average 3.8675213675213675) internal successors, (4525), 1268 states have internal predecessors, (4525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:48,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 4525 transitions. [2021-10-07 15:07:48,471 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 4525 transitions. Word has length 5 [2021-10-07 15:07:48,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:48,472 INFO L470 AbstractCegarLoop]: Abstraction has 1269 states and 4525 transitions. [2021-10-07 15:07:48,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2021-10-07 15:07:48,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 4525 transitions. [2021-10-07 15:07:48,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:07:48,473 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:48,474 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:07:48,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-07 15:07:48,474 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:48,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:48,475 INFO L82 PathProgramCache]: Analyzing trace with hash 784117380, now seen corresponding path program 1 times [2021-10-07 15:07:48,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:48,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115542768] [2021-10-07 15:07:48,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:48,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:48,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:07:48,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:48,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115542768] [2021-10-07 15:07:48,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115542768] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:07:48,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:07:48,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:07:48,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656186545] [2021-10-07 15:07:48,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:07:48,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:48,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:07:48,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:07:48,562 INFO L87 Difference]: Start difference. First operand 1269 states and 4525 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) [2021-10-07 15:07:48,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:48,605 INFO L93 Difference]: Finished difference Result 2023 states and 7246 transitions. [2021-10-07 15:07:48,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:07:48,606 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 [2021-10-07 15:07:48,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:48,621 INFO L225 Difference]: With dead ends: 2023 [2021-10-07 15:07:48,621 INFO L226 Difference]: Without dead ends: 2023 [2021-10-07 15:07:48,622 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:07:48,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2021-10-07 15:07:48,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 1653. [2021-10-07 15:07:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1554 states have (on average 4.026383526383526) internal successors, (6257), 1652 states have internal predecessors, (6257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:48,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 6257 transitions. [2021-10-07 15:07:48,694 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 6257 transitions. Word has length 5 [2021-10-07 15:07:48,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:48,694 INFO L470 AbstractCegarLoop]: Abstraction has 1653 states and 6257 transitions. [2021-10-07 15:07:48,695 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) [2021-10-07 15:07:48,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 6257 transitions. [2021-10-07 15:07:48,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:07:48,696 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:48,696 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:07:48,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-07 15:07:48,696 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:48,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:48,697 INFO L82 PathProgramCache]: Analyzing trace with hash 784117258, now seen corresponding path program 1 times [2021-10-07 15:07:48,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:48,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475960634] [2021-10-07 15:07:48,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:48,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:48,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:48,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:07:48,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:48,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475960634] [2021-10-07 15:07:48,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475960634] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:07:48,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:07:48,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:07:48,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646726027] [2021-10-07 15:07:48,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:07:48,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:48,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:07:48,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:07:48,745 INFO L87 Difference]: Start difference. First operand 1653 states and 6257 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) [2021-10-07 15:07:48,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:48,778 INFO L93 Difference]: Finished difference Result 1307 states and 4850 transitions. [2021-10-07 15:07:48,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:07:48,779 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 [2021-10-07 15:07:48,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:48,786 INFO L225 Difference]: With dead ends: 1307 [2021-10-07 15:07:48,787 INFO L226 Difference]: Without dead ends: 1307 [2021-10-07 15:07:48,787 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 [2021-10-07 15:07:48,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2021-10-07 15:07:48,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1307. [2021-10-07 15:07:48,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 1248 states have (on average 3.886217948717949) internal successors, (4850), 1306 states have internal predecessors, (4850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:48,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 4850 transitions. [2021-10-07 15:07:48,837 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 4850 transitions. Word has length 5 [2021-10-07 15:07:48,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:48,837 INFO L470 AbstractCegarLoop]: Abstraction has 1307 states and 4850 transitions. [2021-10-07 15:07:48,838 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) [2021-10-07 15:07:48,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 4850 transitions. [2021-10-07 15:07:48,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:07:48,839 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:48,839 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:07:48,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-07 15:07:48,839 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:48,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:48,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1924754952, now seen corresponding path program 1 times [2021-10-07 15:07:48,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:48,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200214602] [2021-10-07 15:07:48,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:48,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:48,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:07:48,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:48,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200214602] [2021-10-07 15:07:48,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200214602] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:07:48,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:07:48,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:07:48,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098413378] [2021-10-07 15:07:48,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:07:48,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:48,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:07:48,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:07:48,870 INFO L87 Difference]: Start difference. First operand 1307 states and 4850 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2021-10-07 15:07:48,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:48,911 INFO L93 Difference]: Finished difference Result 1879 states and 7061 transitions. [2021-10-07 15:07:48,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:07:48,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2021-10-07 15:07:48,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:48,922 INFO L225 Difference]: With dead ends: 1879 [2021-10-07 15:07:48,922 INFO L226 Difference]: Without dead ends: 1879 [2021-10-07 15:07:48,923 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 [2021-10-07 15:07:48,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2021-10-07 15:07:48,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1733. [2021-10-07 15:07:48,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1733 states, 1674 states have (on average 3.9910394265232974) internal successors, (6681), 1732 states have internal predecessors, (6681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:48,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 6681 transitions. [2021-10-07 15:07:48,992 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 6681 transitions. Word has length 7 [2021-10-07 15:07:48,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:48,993 INFO L470 AbstractCegarLoop]: Abstraction has 1733 states and 6681 transitions. [2021-10-07 15:07:48,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2021-10-07 15:07:48,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 6681 transitions. [2021-10-07 15:07:48,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:07:48,994 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:48,994 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:07:48,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-07 15:07:48,994 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:48,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:48,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1917537037, now seen corresponding path program 1 times [2021-10-07 15:07:48,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:48,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816990254] [2021-10-07 15:07:48,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:48,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:49,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:07:49,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:49,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816990254] [2021-10-07 15:07:49,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816990254] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:07:49,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141810966] [2021-10-07 15:07:49,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:49,028 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:07:49,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:07:49,030 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) [2021-10-07 15:07:49,038 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 [2021-10-07 15:07:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:49,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-07 15:07:49,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:07:49,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:07:49,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141810966] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:07:49,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:07:49,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2021-10-07 15:07:49,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205367250] [2021-10-07 15:07:49,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:07:49,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:49,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:07:49,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-07 15:07:49,174 INFO L87 Difference]: Start difference. First operand 1733 states and 6681 transitions. Second operand has 5 states, 5 states have (on average 1.4) 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) [2021-10-07 15:07:49,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:49,238 INFO L93 Difference]: Finished difference Result 1734 states and 6682 transitions. [2021-10-07 15:07:49,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:07:49,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) 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 [2021-10-07 15:07:49,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:49,249 INFO L225 Difference]: With dead ends: 1734 [2021-10-07 15:07:49,250 INFO L226 Difference]: Without dead ends: 1734 [2021-10-07 15:07:49,250 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.8ms TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-07 15:07:49,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-10-07 15:07:49,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1734. [2021-10-07 15:07:49,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1734 states, 1675 states have (on average 3.9892537313432834) internal successors, (6682), 1733 states have internal predecessors, (6682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:49,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1734 states to 1734 states and 6682 transitions. [2021-10-07 15:07:49,344 INFO L78 Accepts]: Start accepts. Automaton has 1734 states and 6682 transitions. Word has length 7 [2021-10-07 15:07:49,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:49,344 INFO L470 AbstractCegarLoop]: Abstraction has 1734 states and 6682 transitions. [2021-10-07 15:07:49,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) 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) [2021-10-07 15:07:49,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1734 states and 6682 transitions. [2021-10-07 15:07:49,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-07 15:07:49,345 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:49,345 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:07:49,381 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 [2021-10-07 15:07:49,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:07:49,548 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:49,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:49,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1335909578, now seen corresponding path program 1 times [2021-10-07 15:07:49,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:49,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841787042] [2021-10-07 15:07:49,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:49,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:49,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:07:49,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:49,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841787042] [2021-10-07 15:07:49,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841787042] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:07:49,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311052357] [2021-10-07 15:07:49,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:49,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:07:49,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:07:49,583 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) [2021-10-07 15:07:49,598 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 [2021-10-07 15:07:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:49,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-07 15:07:49,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:07:49,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:07:49,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311052357] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:07:49,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:07:49,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5] total 8 [2021-10-07 15:07:49,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959609850] [2021-10-07 15:07:49,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 15:07:49,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:49,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 15:07:49,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:07:49,715 INFO L87 Difference]: Start difference. First operand 1734 states and 6682 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2021-10-07 15:07:49,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:49,883 INFO L93 Difference]: Finished difference Result 2276 states and 8237 transitions. [2021-10-07 15:07:49,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-07 15:07:49,884 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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 8 [2021-10-07 15:07:49,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:49,896 INFO L225 Difference]: With dead ends: 2276 [2021-10-07 15:07:49,896 INFO L226 Difference]: Without dead ends: 2272 [2021-10-07 15:07:49,897 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 57.5ms TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-10-07 15:07:49,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2021-10-07 15:07:49,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 1732. [2021-10-07 15:07:49,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1703 states have (on average 3.914856136230182) internal successors, (6667), 1731 states have internal predecessors, (6667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:49,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 6667 transitions. [2021-10-07 15:07:49,968 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 6667 transitions. Word has length 8 [2021-10-07 15:07:49,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:49,969 INFO L470 AbstractCegarLoop]: Abstraction has 1732 states and 6667 transitions. [2021-10-07 15:07:49,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2021-10-07 15:07:49,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 6667 transitions. [2021-10-07 15:07:49,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-07 15:07:49,970 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:49,970 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:07:50,006 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 [2021-10-07 15:07:50,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-07 15:07:50,185 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:50,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:50,186 INFO L82 PathProgramCache]: Analyzing trace with hash -2032312618, now seen corresponding path program 1 times [2021-10-07 15:07:50,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:50,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387959585] [2021-10-07 15:07:50,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:50,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:50,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:07:50,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:50,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387959585] [2021-10-07 15:07:50,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387959585] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:07:50,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:07:50,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:07:50,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874102611] [2021-10-07 15:07:50,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:07:50,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:50,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:07:50,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:07:50,224 INFO L87 Difference]: Start difference. First operand 1732 states and 6667 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2021-10-07 15:07:50,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:50,262 INFO L93 Difference]: Finished difference Result 1152 states and 4379 transitions. [2021-10-07 15:07:50,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:07:50,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 10 [2021-10-07 15:07:50,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:50,268 INFO L225 Difference]: With dead ends: 1152 [2021-10-07 15:07:50,269 INFO L226 Difference]: Without dead ends: 1126 [2021-10-07 15:07:50,269 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:07:50,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2021-10-07 15:07:50,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1126. [2021-10-07 15:07:50,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 1117 states have (on average 3.8236347358997316) internal successors, (4271), 1125 states have internal predecessors, (4271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:50,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 4271 transitions. [2021-10-07 15:07:50,311 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 4271 transitions. Word has length 10 [2021-10-07 15:07:50,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:50,311 INFO L470 AbstractCegarLoop]: Abstraction has 1126 states and 4271 transitions. [2021-10-07 15:07:50,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2021-10-07 15:07:50,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 4271 transitions. [2021-10-07 15:07:50,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-07 15:07:50,313 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:50,313 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:07:50,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-07 15:07:50,313 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:50,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:50,314 INFO L82 PathProgramCache]: Analyzing trace with hash -2039628751, now seen corresponding path program 1 times [2021-10-07 15:07:50,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:50,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076143960] [2021-10-07 15:07:50,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:50,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:50,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:07:50,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:50,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076143960] [2021-10-07 15:07:50,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076143960] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:07:50,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522726392] [2021-10-07 15:07:50,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:50,343 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:07:50,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:07:50,344 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) [2021-10-07 15:07:50,366 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 [2021-10-07 15:07:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:50,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:07:50,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:07:50,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:07:50,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522726392] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:07:50,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:07:50,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-07 15:07:50,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064569453] [2021-10-07 15:07:50,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:07:50,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:50,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:07:50,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:07:50,439 INFO L87 Difference]: Start difference. First operand 1126 states and 4271 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 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) [2021-10-07 15:07:50,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:50,486 INFO L93 Difference]: Finished difference Result 1536 states and 5970 transitions. [2021-10-07 15:07:50,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:07:50,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 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 10 [2021-10-07 15:07:50,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:50,494 INFO L225 Difference]: With dead ends: 1536 [2021-10-07 15:07:50,494 INFO L226 Difference]: Without dead ends: 1536 [2021-10-07 15:07:50,495 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:07:50,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2021-10-07 15:07:50,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1408. [2021-10-07 15:07:50,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1399 states have (on average 4.027162258756254) internal successors, (5634), 1407 states have internal predecessors, (5634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:50,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 5634 transitions. [2021-10-07 15:07:50,570 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 5634 transitions. Word has length 10 [2021-10-07 15:07:50,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:50,571 INFO L470 AbstractCegarLoop]: Abstraction has 1408 states and 5634 transitions. [2021-10-07 15:07:50,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 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) [2021-10-07 15:07:50,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 5634 transitions. [2021-10-07 15:07:50,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-07 15:07:50,572 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:50,572 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:07:50,607 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 [2021-10-07 15:07:50,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:07:50,786 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:50,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:50,788 INFO L82 PathProgramCache]: Analyzing trace with hash -2039628750, now seen corresponding path program 1 times [2021-10-07 15:07:50,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:50,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006166413] [2021-10-07 15:07:50,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:50,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:50,811 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:07:50,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:50,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006166413] [2021-10-07 15:07:50,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006166413] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:07:50,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:07:50,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:07:50,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113408911] [2021-10-07 15:07:50,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:07:50,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:50,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:07:50,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:07:50,813 INFO L87 Difference]: Start difference. First operand 1408 states and 5634 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2021-10-07 15:07:50,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:50,838 INFO L93 Difference]: Finished difference Result 1220 states and 4768 transitions. [2021-10-07 15:07:50,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:07:50,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 10 [2021-10-07 15:07:50,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:50,845 INFO L225 Difference]: With dead ends: 1220 [2021-10-07 15:07:50,846 INFO L226 Difference]: Without dead ends: 1220 [2021-10-07 15:07:50,846 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:07:50,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2021-10-07 15:07:50,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1220. [2021-10-07 15:07:50,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1215 states have (on average 3.9242798353909465) internal successors, (4768), 1219 states have internal predecessors, (4768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:50,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 4768 transitions. [2021-10-07 15:07:50,891 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 4768 transitions. Word has length 10 [2021-10-07 15:07:50,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:50,891 INFO L470 AbstractCegarLoop]: Abstraction has 1220 states and 4768 transitions. [2021-10-07 15:07:50,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2021-10-07 15:07:50,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 4768 transitions. [2021-10-07 15:07:50,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-07 15:07:50,896 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:50,896 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-10-07 15:07:50,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-07 15:07:50,896 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:50,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:50,897 INFO L82 PathProgramCache]: Analyzing trace with hash -2134715352, now seen corresponding path program 1 times [2021-10-07 15:07:50,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:50,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711249632] [2021-10-07 15:07:50,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:50,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:50,944 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-07 15:07:50,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:50,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711249632] [2021-10-07 15:07:50,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711249632] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:07:50,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47721336] [2021-10-07 15:07:50,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:50,945 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:07:50,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:07:50,946 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) [2021-10-07 15:07:50,954 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 [2021-10-07 15:07:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:51,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-07 15:07:51,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:07:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:07:51,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47721336] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:07:51,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:07:51,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7] total 10 [2021-10-07 15:07:51,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119166032] [2021-10-07 15:07:51,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-07 15:07:51,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:51,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-07 15:07:51,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:07:51,131 INFO L87 Difference]: Start difference. First operand 1220 states and 4768 transitions. Second operand has 10 states, 10 states have (on average 1.9) 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) [2021-10-07 15:07:51,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:51,348 INFO L93 Difference]: Finished difference Result 2920 states and 10771 transitions. [2021-10-07 15:07:51,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-07 15:07:51,349 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) 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 10 [2021-10-07 15:07:51,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:51,364 INFO L225 Difference]: With dead ends: 2920 [2021-10-07 15:07:51,364 INFO L226 Difference]: Without dead ends: 2880 [2021-10-07 15:07:51,364 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 120.1ms TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:07:51,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2021-10-07 15:07:51,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 1932. [2021-10-07 15:07:51,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1932 states, 1927 states have (on average 4.029060716139076) internal successors, (7764), 1931 states have internal predecessors, (7764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:51,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 7764 transitions. [2021-10-07 15:07:51,443 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 7764 transitions. Word has length 10 [2021-10-07 15:07:51,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:51,444 INFO L470 AbstractCegarLoop]: Abstraction has 1932 states and 7764 transitions. [2021-10-07 15:07:51,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) 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) [2021-10-07 15:07:51,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 7764 transitions. [2021-10-07 15:07:51,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-07 15:07:51,445 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:51,445 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:07:51,484 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 [2021-10-07 15:07:51,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-07 15:07:51,660 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:51,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:51,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1578136163, now seen corresponding path program 2 times [2021-10-07 15:07:51,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:51,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507403092] [2021-10-07 15:07:51,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:51,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:51,688 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-07 15:07:51,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:51,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507403092] [2021-10-07 15:07:51,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507403092] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:07:51,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:07:51,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-07 15:07:51,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88400960] [2021-10-07 15:07:51,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:07:51,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:51,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:07:51,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:07:51,691 INFO L87 Difference]: Start difference. First operand 1932 states and 7764 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2021-10-07 15:07:51,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:51,714 INFO L93 Difference]: Finished difference Result 1782 states and 7204 transitions. [2021-10-07 15:07:51,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:07:51,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 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 12 [2021-10-07 15:07:51,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:51,725 INFO L225 Difference]: With dead ends: 1782 [2021-10-07 15:07:51,725 INFO L226 Difference]: Without dead ends: 1782 [2021-10-07 15:07:51,726 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:07:51,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2021-10-07 15:07:51,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1782. [2021-10-07 15:07:51,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1782 states, 1779 states have (on average 4.04946599213041) internal successors, (7204), 1781 states have internal predecessors, (7204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:51,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1782 states to 1782 states and 7204 transitions. [2021-10-07 15:07:51,817 INFO L78 Accepts]: Start accepts. Automaton has 1782 states and 7204 transitions. Word has length 12 [2021-10-07 15:07:51,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:51,817 INFO L470 AbstractCegarLoop]: Abstraction has 1782 states and 7204 transitions. [2021-10-07 15:07:51,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2021-10-07 15:07:51,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1782 states and 7204 transitions. [2021-10-07 15:07:51,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-07 15:07:51,819 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:51,820 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:07:51,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-07 15:07:51,820 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:51,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:51,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1677580671, now seen corresponding path program 1 times [2021-10-07 15:07:51,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:51,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038483273] [2021-10-07 15:07:51,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:51,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:51,859 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:07:51,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:51,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038483273] [2021-10-07 15:07:51,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038483273] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:07:51,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185268050] [2021-10-07 15:07:51,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:51,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:07:51,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:07:51,861 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) [2021-10-07 15:07:51,885 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 [2021-10-07 15:07:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:51,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-07 15:07:51,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:07:51,972 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:07:51,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185268050] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:07:51,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:07:51,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-07 15:07:51,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696439198] [2021-10-07 15:07:51,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 15:07:51,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:51,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 15:07:51,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:07:51,974 INFO L87 Difference]: Start difference. First operand 1782 states and 7204 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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) [2021-10-07 15:07:52,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:52,030 INFO L93 Difference]: Finished difference Result 2496 states and 9821 transitions. [2021-10-07 15:07:52,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:07:52,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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 13 [2021-10-07 15:07:52,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:52,046 INFO L225 Difference]: With dead ends: 2496 [2021-10-07 15:07:52,046 INFO L226 Difference]: Without dead ends: 2496 [2021-10-07 15:07:52,046 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 9.2ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:07:52,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-10-07 15:07:52,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2232. [2021-10-07 15:07:52,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2232 states, 2229 states have (on average 4.092418124719606) internal successors, (9122), 2231 states have internal predecessors, (9122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:52,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 9122 transitions. [2021-10-07 15:07:52,134 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 9122 transitions. Word has length 13 [2021-10-07 15:07:52,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:52,135 INFO L470 AbstractCegarLoop]: Abstraction has 2232 states and 9122 transitions. [2021-10-07 15:07:52,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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) [2021-10-07 15:07:52,135 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 9122 transitions. [2021-10-07 15:07:52,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-07 15:07:52,137 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:52,137 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1] [2021-10-07 15:07:52,170 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 [2021-10-07 15:07:52,351 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,SelfDestructingSolverStorable15 [2021-10-07 15:07:52,352 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:52,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:52,354 INFO L82 PathProgramCache]: Analyzing trace with hash -804199582, now seen corresponding path program 2 times [2021-10-07 15:07:52,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:52,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836453457] [2021-10-07 15:07:52,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:52,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:52,439 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:07:52,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:52,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836453457] [2021-10-07 15:07:52,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836453457] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:07:52,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426364961] [2021-10-07 15:07:52,440 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:07:52,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:07:52,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:07:52,441 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) [2021-10-07 15:07:52,452 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 [2021-10-07 15:07:52,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:07:52,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:07:52,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:07:52,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:07:52,570 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-07 15:07:52,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426364961] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:07:52,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:07:52,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 2] total 11 [2021-10-07 15:07:52,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781324615] [2021-10-07 15:07:52,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-07 15:07:52,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:52,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-07 15:07:52,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-07 15:07:52,572 INFO L87 Difference]: Start difference. First operand 2232 states and 9122 transitions. Second operand has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:53,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:53,010 INFO L93 Difference]: Finished difference Result 4588 states and 17290 transitions. [2021-10-07 15:07:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-07 15:07:53,011 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 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 [2021-10-07 15:07:53,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:53,034 INFO L225 Difference]: With dead ends: 4588 [2021-10-07 15:07:53,034 INFO L226 Difference]: Without dead ends: 4444 [2021-10-07 15:07:53,035 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 255.6ms TimeCoverageRelationStatistics Valid=289, Invalid=767, Unknown=0, NotChecked=0, Total=1056 [2021-10-07 15:07:53,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4444 states. [2021-10-07 15:07:53,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4444 to 1804. [2021-10-07 15:07:53,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1803 states have (on average 3.921242373821409) internal successors, (7070), 1803 states have internal predecessors, (7070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:53,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 7070 transitions. [2021-10-07 15:07:53,130 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 7070 transitions. Word has length 13 [2021-10-07 15:07:53,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:53,130 INFO L470 AbstractCegarLoop]: Abstraction has 1804 states and 7070 transitions. [2021-10-07 15:07:53,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:53,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 7070 transitions. [2021-10-07 15:07:53,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-07 15:07:53,152 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:07:53,152 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:07:53,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-10-07 15:07:53,361 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,SelfDestructingSolverStorable16 [2021-10-07 15:07:53,362 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2021-10-07 15:07:53,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:07:53,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1542206059, now seen corresponding path program 2 times [2021-10-07 15:07:53,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:07:53,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500194779] [2021-10-07 15:07:53,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:07:53,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:07:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:07:53,406 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:07:53,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:07:53,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500194779] [2021-10-07 15:07:53,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500194779] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:07:53,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187952372] [2021-10-07 15:07:53,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:07:53,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:07:53,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:07:53,408 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) [2021-10-07 15:07:53,410 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 [2021-10-07 15:07:53,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:07:53,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:07:53,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:07:53,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:07:53,522 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-07 15:07:53,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187952372] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:07:53,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:07:53,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2] total 7 [2021-10-07 15:07:53,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274232544] [2021-10-07 15:07:53,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 15:07:53,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:07:53,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 15:07:53,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:07:53,524 INFO L87 Difference]: Start difference. First operand 1804 states and 7070 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 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) [2021-10-07 15:07:53,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:07:53,626 INFO L93 Difference]: Finished difference Result 2182 states and 8711 transitions. [2021-10-07 15:07:53,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-07 15:07:53,626 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 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 15 [2021-10-07 15:07:53,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:07:53,628 INFO L225 Difference]: With dead ends: 2182 [2021-10-07 15:07:53,628 INFO L226 Difference]: Without dead ends: 0 [2021-10-07 15:07:53,629 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 45.3ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-10-07 15:07:53,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-07 15:07:53,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-07 15:07:53,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:07:53,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-07 15:07:53,629 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-07 15:07:53,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:07:53,630 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-07 15:07:53,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 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) [2021-10-07 15:07:53,630 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-07 15:07:53,630 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-07 15:07:53,632 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,633 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,634 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,634 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,634 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,634 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,634 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,634 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,635 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,635 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,635 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,635 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,635 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,635 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,636 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,636 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,636 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,636 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,636 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 15:07:53,636 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 15:07:53,636 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-07 15:07:53,637 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,637 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,637 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,637 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,638 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,638 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,638 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,638 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,638 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,638 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,638 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,639 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,639 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,639 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,639 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,639 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:07:53,673 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 [2021-10-07 15:07:53,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:07:53,861 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 15:07:53,861 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 15:07:53,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 03:07:53 BasicIcfg [2021-10-07 15:07:53,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 15:07:53,864 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-07 15:07:53,864 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-07 15:07:53,864 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-07 15:07:53,865 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:07:36" (3/4) ... [2021-10-07 15:07:53,868 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-07 15:07:53,874 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-07 15:07:53,875 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-07 15:07:53,875 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-07 15:07:53,880 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-07 15:07:53,880 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-07 15:07:53,881 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-07 15:07:53,881 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-07 15:07:53,923 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/popl20-more-sorted.wvr.c-witness.graphml [2021-10-07 15:07:53,923 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-07 15:07:53,925 INFO L168 Benchmark]: Toolchain (without parser) took 18515.48 ms. Allocated memory was 160.4 MB in the beginning and 324.0 MB in the end (delta: 163.6 MB). Free memory was 135.9 MB in the beginning and 250.2 MB in the end (delta: -114.4 MB). Peak memory consumption was 50.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:07:53,925 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 160.4 MB. Free memory is still 131.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 15:07:53,926 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.90 ms. Allocated memory is still 160.4 MB. Free memory was 135.7 MB in the beginning and 124.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-07 15:07:53,926 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.96 ms. Allocated memory is still 160.4 MB. Free memory was 124.1 MB in the beginning and 122.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:07:53,927 INFO L168 Benchmark]: Boogie Preprocessor took 37.84 ms. Allocated memory is still 160.4 MB. Free memory was 122.4 MB in the beginning and 120.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:07:53,927 INFO L168 Benchmark]: RCFGBuilder took 681.25 ms. Allocated memory is still 160.4 MB. Free memory was 120.8 MB in the beginning and 139.4 MB in the end (delta: -18.6 MB). Peak memory consumption was 16.7 MB. Max. memory is 8.0 GB. [2021-10-07 15:07:53,927 INFO L168 Benchmark]: TraceAbstraction took 17269.93 ms. Allocated memory was 160.4 MB in the beginning and 324.0 MB in the end (delta: 163.6 MB). Free memory was 138.9 MB in the beginning and 253.9 MB in the end (delta: -115.0 MB). Peak memory consumption was 50.2 MB. Max. memory is 8.0 GB. [2021-10-07 15:07:53,928 INFO L168 Benchmark]: Witness Printer took 59.49 ms. Allocated memory is still 324.0 MB. Free memory was 253.9 MB in the beginning and 250.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:07:53,930 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 160.4 MB. Free memory is still 131.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 362.90 ms. Allocated memory is still 160.4 MB. Free memory was 135.7 MB in the beginning and 124.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 89.96 ms. Allocated memory is still 160.4 MB. Free memory was 124.1 MB in the beginning and 122.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.84 ms. Allocated memory is still 160.4 MB. Free memory was 122.4 MB in the beginning and 120.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 681.25 ms. Allocated memory is still 160.4 MB. Free memory was 120.8 MB in the beginning and 139.4 MB in the end (delta: -18.6 MB). Peak memory consumption was 16.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17269.93 ms. Allocated memory was 160.4 MB in the beginning and 324.0 MB in the end (delta: 163.6 MB). Free memory was 138.9 MB in the beginning and 253.9 MB in the end (delta: -115.0 MB). Peak memory consumption was 50.2 MB. Max. memory is 8.0 GB. * Witness Printer took 59.49 ms. Allocated memory is still 324.0 MB. Free memory was 253.9 MB in the beginning and 250.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9076.0ms, 200 PlacesBefore, 55 PlacesAfterwards, 205 TransitionsBefore, 51 TransitionsAfterwards, 7406 CoEnabledTransitionPairs, 6 FixpointIterations, 83 TrivialSequentialCompositions, 94 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 19 ConcurrentYvCompositions, 9 ChoiceCompositions, 224 TotalNumberOfCompositions, 8993 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8205, positive: 8159, positive conditional: 0, positive unconditional: 8159, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5070, positive: 5054, positive conditional: 0, positive unconditional: 5054, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5070, positive: 5054, positive conditional: 0, positive unconditional: 5054, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 54, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8205, positive: 3105, positive conditional: 0, positive unconditional: 3105, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 5070, unknown conditional: 0, unknown unconditional: 5070] , Statistics on independence cache: Total cache size (in pairs): 240, Positive cache size: 235, Positive conditional cache size: 0, Positive unconditional cache size: 235, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - 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 - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 102]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 102]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 277 locations, 37 error locations. Started 1 CEGAR loops. OverallTime: 17073.9ms, OverallIterations: 18, TraceHistogramMax: 4, EmptinessCheckTime: 55.5ms, AutomataDifference: 2092.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9246.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 725 SDtfs, 1895 SDslu, 1396 SDs, 0 SdLazy, 599 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 544.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 164 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 561.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2232occurred in iteration=16, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1373.5ms AutomataMinimizationTime, 18 MinimizatonAttempts, 9823 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 119.6ms SsaConstructionTime, 444.6ms SatisfiabilityAnalysisTime, 1058.0ms InterpolantComputationTime, 225 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 564 SizeOfPredicates, 19 NumberOfNonLiveVariables, 1059 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 27 InterpolantComputations, 11 PerfectInterpolantSequences, 48/101 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-07 15:07:53,975 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 0 Received shutdown request...