/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-min-array-hom.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c503be2 [2021-10-13 19:34:32,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 19:34:32,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 19:34:32,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 19:34:32,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 19:34:32,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 19:34:32,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 19:34:32,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 19:34:32,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 19:34:33,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 19:34:33,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 19:34:33,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 19:34:33,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 19:34:33,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 19:34:33,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 19:34:33,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 19:34:33,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 19:34:33,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 19:34:33,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 19:34:33,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 19:34:33,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 19:34:33,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 19:34:33,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 19:34:33,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 19:34:33,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 19:34:33,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 19:34:33,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 19:34:33,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 19:34:33,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 19:34:33,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 19:34:33,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 19:34:33,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 19:34:33,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 19:34:33,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 19:34:33,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 19:34:33,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 19:34:33,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 19:34:33,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 19:34:33,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 19:34:33,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 19:34:33,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 19:34:33,100 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-13 19:34:33,152 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 19:34:33,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 19:34:33,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 19:34:33,154 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 19:34:33,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 19:34:33,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 19:34:33,159 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 19:34:33,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 19:34:33,159 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 19:34:33,159 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 19:34:33,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 19:34:33,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 19:34:33,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 19:34:33,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 19:34:33,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 19:34:33,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 19:34:33,162 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 19:34:33,163 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 19:34:33,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 19:34:33,163 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 19:34:33,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 19:34:33,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 19:34:33,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 19:34:33,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 19:34:33,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:34:33,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 19:34:33,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 19:34:33,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 19:34:33,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 19:34:33,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 19:34:33,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 19:34:33,166 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 19:34:33,166 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 19:34:33,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 19:34:33,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 19:34:33,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 19:34:33,627 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 19:34:33,628 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 19:34:33,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c [2021-10-13 19:34:33,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/beaf866c9/1f21b2b4654b40d2b60c0cc7002059aa/FLAG7d4abdca0 [2021-10-13 19:34:34,315 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 19:34:34,316 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c [2021-10-13 19:34:34,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/beaf866c9/1f21b2b4654b40d2b60c0cc7002059aa/FLAG7d4abdca0 [2021-10-13 19:34:34,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/beaf866c9/1f21b2b4654b40d2b60c0cc7002059aa [2021-10-13 19:34:34,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 19:34:34,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 19:34:34,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 19:34:34,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 19:34:34,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 19:34:34,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:34:34" (1/1) ... [2021-10-13 19:34:34,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c0f4438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:34, skipping insertion in model container [2021-10-13 19:34:34,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:34:34" (1/1) ... [2021-10-13 19:34:34,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 19:34:34,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 19:34:34,923 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-min-array-hom.wvr.c[2586,2599] [2021-10-13 19:34:34,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:34:34,939 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 19:34:34,965 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-min-array-hom.wvr.c[2586,2599] [2021-10-13 19:34:34,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:34:34,988 INFO L208 MainTranslator]: Completed translation [2021-10-13 19:34:34,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:34 WrapperNode [2021-10-13 19:34:34,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 19:34:34,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 19:34:34,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 19:34:34,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 19:34:35,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:34" (1/1) ... [2021-10-13 19:34:35,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:34" (1/1) ... [2021-10-13 19:34:35,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 19:34:35,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 19:34:35,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 19:34:35,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 19:34:35,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:34" (1/1) ... [2021-10-13 19:34:35,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:34" (1/1) ... [2021-10-13 19:34:35,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:34" (1/1) ... [2021-10-13 19:34:35,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:34" (1/1) ... [2021-10-13 19:34:35,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:34" (1/1) ... [2021-10-13 19:34:35,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:34" (1/1) ... [2021-10-13 19:34:35,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:34" (1/1) ... [2021-10-13 19:34:35,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 19:34:35,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 19:34:35,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 19:34:35,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 19:34:35,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:34" (1/1) ... [2021-10-13 19:34:35,105 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:34:35,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:35,135 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) [2021-10-13 19:34:35,145 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 [2021-10-13 19:34:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 19:34:35,185 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 19:34:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-13 19:34:35,185 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-13 19:34:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-13 19:34:35,185 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-13 19:34:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 19:34:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 19:34:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 19:34:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 19:34:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 19:34:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 19:34:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 19:34:35,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 19:34:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 19:34:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 19:34:35,188 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 19:34:35,859 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 19:34:35,859 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-13 19:34:35,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:34:35 BoogieIcfgContainer [2021-10-13 19:34:35,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 19:34:35,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 19:34:35,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 19:34:35,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 19:34:35,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:34:34" (1/3) ... [2021-10-13 19:34:35,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73fb3bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:34:35, skipping insertion in model container [2021-10-13 19:34:35,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:34" (2/3) ... [2021-10-13 19:34:35,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73fb3bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:34:35, skipping insertion in model container [2021-10-13 19:34:35,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:34:35" (3/3) ... [2021-10-13 19:34:35,871 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-min-array-hom.wvr.c [2021-10-13 19:34:35,879 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 19:34:35,879 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 19:34:35,879 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-13 19:34:35,880 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 19:34:35,916 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,917 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,917 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,917 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,918 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,918 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,918 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,918 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,919 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,919 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,919 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,919 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,919 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,919 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,920 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,920 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,920 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,920 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,921 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,921 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,923 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,923 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,923 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,923 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,924 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,924 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,924 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,924 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,925 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,925 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,925 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,925 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,926 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,926 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,926 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,926 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,926 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,927 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,927 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,927 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,927 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,927 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,928 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,928 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,928 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,928 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,928 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,929 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,929 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,929 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,929 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,929 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,930 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,930 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,930 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,930 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,930 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,931 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,931 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,931 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,931 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,931 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,932 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,932 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,932 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,933 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,933 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,933 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,933 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,934 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,934 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,934 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,934 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,934 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,935 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,935 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,935 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,935 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,935 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,936 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,936 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,936 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,936 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,936 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,937 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,937 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,937 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,937 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,938 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,938 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,938 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,938 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,938 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,939 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,939 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,939 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,939 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,939 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,940 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,940 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,943 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,944 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,944 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,944 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,944 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,945 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,946 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,947 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,947 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,947 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,947 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,948 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,949 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,950 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,950 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,950 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,950 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,950 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:34:35,958 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-13 19:34:36,011 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 19:34:36,019 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 [2021-10-13 19:34:36,020 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-10-13 19:34:36,038 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 19:34:36,051 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 160 transitions, 344 flow [2021-10-13 19:34:36,054 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 160 transitions, 344 flow [2021-10-13 19:34:36,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 157 places, 160 transitions, 344 flow [2021-10-13 19:34:36,123 INFO L129 PetriNetUnfolder]: 13/157 cut-off events. [2021-10-13 19:34:36,123 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-13 19:34:36,129 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 157 events. 13/157 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 135 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 114. Up to 2 conditions per place. [2021-10-13 19:34:36,133 INFO L116 LiptonReduction]: Number of co-enabled transitions 2184 [2021-10-13 19:34:43,867 INFO L131 LiptonReduction]: Checked pairs total: 2785 [2021-10-13 19:34:43,868 INFO L133 LiptonReduction]: Total number of compositions: 165 [2021-10-13 19:34:43,881 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 35 transitions, 94 flow [2021-10-13 19:34:43,936 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 369 states, 341 states have (on average 3.530791788856305) internal successors, (1204), 368 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:43,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 341 states have (on average 3.530791788856305) internal successors, (1204), 368 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:43,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-13 19:34:43,946 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:43,947 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-13 19:34:43,947 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-13 19:34:43,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:43,954 INFO L82 PathProgramCache]: Analyzing trace with hash 21473, now seen corresponding path program 1 times [2021-10-13 19:34:43,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:43,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832045848] [2021-10-13 19:34:43,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:43,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:44,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:44,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:44,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832045848] [2021-10-13 19:34:44,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832045848] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:34:44,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:34:44,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:34:44,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456434828] [2021-10-13 19:34:44,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:34:44,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:44,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:34:44,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:34:44,205 INFO L87 Difference]: Start difference. First operand has 369 states, 341 states have (on average 3.530791788856305) internal successors, (1204), 368 states have internal predecessors, (1204), 0 states have call successors, (0), 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) [2021-10-13 19:34:44,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:44,279 INFO L93 Difference]: Finished difference Result 735 states and 2405 transitions. [2021-10-13 19:34:44,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:34:44,282 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 [2021-10-13 19:34:44,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:44,326 INFO L225 Difference]: With dead ends: 735 [2021-10-13 19:34:44,326 INFO L226 Difference]: Without dead ends: 735 [2021-10-13 19:34:44,327 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:34:44,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2021-10-13 19:34:44,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 370. [2021-10-13 19:34:44,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 342 states have (on average 3.526315789473684) internal successors, (1206), 369 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:44,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1206 transitions. [2021-10-13 19:34:44,470 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1206 transitions. Word has length 2 [2021-10-13 19:34:44,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:44,470 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 1206 transitions. [2021-10-13 19:34:44,471 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) [2021-10-13 19:34:44,471 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1206 transitions. [2021-10-13 19:34:44,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 19:34:44,471 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:44,472 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 19:34:44,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 19:34:44,473 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-13 19:34:44,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:44,474 INFO L82 PathProgramCache]: Analyzing trace with hash 666769, now seen corresponding path program 1 times [2021-10-13 19:34:44,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:44,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87971331] [2021-10-13 19:34:44,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:44,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:44,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:44,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87971331] [2021-10-13 19:34:44,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87971331] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:44,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058407047] [2021-10-13 19:34:44,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:44,581 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:44,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:44,584 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) [2021-10-13 19:34:44,592 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 [2021-10-13 19:34:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:44,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:34:44,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:44,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:44,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058407047] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:44,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:44,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-13 19:34:44,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854210198] [2021-10-13 19:34:44,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:34:44,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:44,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:34:44,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:34:44,721 INFO L87 Difference]: Start difference. First operand 370 states and 1206 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) [2021-10-13 19:34:44,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:44,816 INFO L93 Difference]: Finished difference Result 1101 states and 3607 transitions. [2021-10-13 19:34:44,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:34:44,821 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 [2021-10-13 19:34:44,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:44,840 INFO L225 Difference]: With dead ends: 1101 [2021-10-13 19:34:44,840 INFO L226 Difference]: Without dead ends: 1101 [2021-10-13 19:34:44,841 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.8ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:34:44,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2021-10-13 19:34:44,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 371. [2021-10-13 19:34:44,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 343 states have (on average 3.5247813411078717) internal successors, (1209), 370 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:44,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 1209 transitions. [2021-10-13 19:34:44,919 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 1209 transitions. Word has length 3 [2021-10-13 19:34:44,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:44,920 INFO L470 AbstractCegarLoop]: Abstraction has 371 states and 1209 transitions. [2021-10-13 19:34:44,920 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) [2021-10-13 19:34:44,920 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 1209 transitions. [2021-10-13 19:34:44,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 19:34:44,921 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:44,921 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 19:34:44,956 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 [2021-10-13 19:34:45,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:45,136 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-13 19:34:45,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:45,137 INFO L82 PathProgramCache]: Analyzing trace with hash 666770, now seen corresponding path program 1 times [2021-10-13 19:34:45,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:45,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305885048] [2021-10-13 19:34:45,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:45,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:45,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:45,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:45,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305885048] [2021-10-13 19:34:45,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305885048] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:34:45,207 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:34:45,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:34:45,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038996192] [2021-10-13 19:34:45,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:34:45,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:45,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:34:45,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:34:45,210 INFO L87 Difference]: Start difference. First operand 371 states and 1209 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) [2021-10-13 19:34:45,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:45,225 INFO L93 Difference]: Finished difference Result 370 states and 1207 transitions. [2021-10-13 19:34:45,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:34:45,226 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 [2021-10-13 19:34:45,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:45,230 INFO L225 Difference]: With dead ends: 370 [2021-10-13 19:34:45,230 INFO L226 Difference]: Without dead ends: 370 [2021-10-13 19:34:45,230 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:34:45,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-10-13 19:34:45,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2021-10-13 19:34:45,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 343 states have (on average 3.5189504373177845) internal successors, (1207), 369 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:45,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1207 transitions. [2021-10-13 19:34:45,250 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1207 transitions. Word has length 3 [2021-10-13 19:34:45,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:45,250 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 1207 transitions. [2021-10-13 19:34:45,251 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) [2021-10-13 19:34:45,251 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1207 transitions. [2021-10-13 19:34:45,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 19:34:45,251 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:45,251 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-13 19:34:45,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 19:34:45,252 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-13 19:34:45,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:45,253 INFO L82 PathProgramCache]: Analyzing trace with hash 20670945, now seen corresponding path program 2 times [2021-10-13 19:34:45,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:45,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548738946] [2021-10-13 19:34:45,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:45,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:45,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:45,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:45,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548738946] [2021-10-13 19:34:45,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548738946] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:45,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846370041] [2021-10-13 19:34:45,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:34:45,310 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:45,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:45,312 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) [2021-10-13 19:34:45,321 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 [2021-10-13 19:34:45,377 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:34:45,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:34:45,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 19:34:45,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:45,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:34:45,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846370041] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:34:45,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:34:45,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-13 19:34:45,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408818021] [2021-10-13 19:34:45,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:34:45,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:45,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:34:45,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:34:45,399 INFO L87 Difference]: Start difference. First operand 370 states and 1207 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) [2021-10-13 19:34:45,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:45,408 INFO L93 Difference]: Finished difference Result 369 states and 1206 transitions. [2021-10-13 19:34:45,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:34:45,409 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 [2021-10-13 19:34:45,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:45,413 INFO L225 Difference]: With dead ends: 369 [2021-10-13 19:34:45,413 INFO L226 Difference]: Without dead ends: 369 [2021-10-13 19:34:45,414 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:34:45,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2021-10-13 19:34:45,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 367. [2021-10-13 19:34:45,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 341 states have (on average 3.5249266862170088) internal successors, (1202), 366 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:45,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 1202 transitions. [2021-10-13 19:34:45,429 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 1202 transitions. Word has length 4 [2021-10-13 19:34:45,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:45,430 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 1202 transitions. [2021-10-13 19:34:45,430 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) [2021-10-13 19:34:45,430 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 1202 transitions. [2021-10-13 19:34:45,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 19:34:45,431 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:45,431 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 19:34:45,463 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 [2021-10-13 19:34:45,645 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 [2021-10-13 19:34:45,646 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-13 19:34:45,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:45,647 INFO L82 PathProgramCache]: Analyzing trace with hash 641031601, now seen corresponding path program 1 times [2021-10-13 19:34:45,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:45,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735913471] [2021-10-13 19:34:45,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:45,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:45,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:45,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:45,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735913471] [2021-10-13 19:34:45,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735913471] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:34:45,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:34:45,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:34:45,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570021362] [2021-10-13 19:34:45,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:34:45,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:45,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:34:45,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:34:45,731 INFO L87 Difference]: Start difference. First operand 367 states and 1202 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) [2021-10-13 19:34:45,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:45,749 INFO L93 Difference]: Finished difference Result 545 states and 1773 transitions. [2021-10-13 19:34:45,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:34:45,750 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 [2021-10-13 19:34:45,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:45,755 INFO L225 Difference]: With dead ends: 545 [2021-10-13 19:34:45,755 INFO L226 Difference]: Without dead ends: 545 [2021-10-13 19:34:45,756 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 [2021-10-13 19:34:45,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2021-10-13 19:34:45,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 429. [2021-10-13 19:34:45,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 403 states have (on average 3.6501240694789083) internal successors, (1471), 428 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:45,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 1471 transitions. [2021-10-13 19:34:45,777 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 1471 transitions. Word has length 5 [2021-10-13 19:34:45,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:45,777 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 1471 transitions. [2021-10-13 19:34:45,777 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) [2021-10-13 19:34:45,777 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 1471 transitions. [2021-10-13 19:34:45,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 19:34:45,778 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:45,778 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 19:34:45,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 19:34:45,779 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-13 19:34:45,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:45,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1602855989, now seen corresponding path program 1 times [2021-10-13 19:34:45,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:45,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452051696] [2021-10-13 19:34:45,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:45,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:45,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:45,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:45,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452051696] [2021-10-13 19:34:45,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452051696] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:45,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469493090] [2021-10-13 19:34:45,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:45,844 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:45,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:45,853 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) [2021-10-13 19:34:45,855 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 [2021-10-13 19:34:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:45,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 19:34:45,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:45,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:45,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469493090] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:34:45,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:34:45,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2021-10-13 19:34:45,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561373985] [2021-10-13 19:34:45,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:34:45,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:45,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:34:45,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:34:45,988 INFO L87 Difference]: Start difference. First operand 429 states and 1471 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:46,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:46,031 INFO L93 Difference]: Finished difference Result 430 states and 1472 transitions. [2021-10-13 19:34:46,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:34:46,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-13 19:34:46,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:46,037 INFO L225 Difference]: With dead ends: 430 [2021-10-13 19:34:46,037 INFO L226 Difference]: Without dead ends: 430 [2021-10-13 19:34:46,038 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 18.6ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:34:46,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-10-13 19:34:46,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2021-10-13 19:34:46,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 404 states have (on average 3.6435643564356437) internal successors, (1472), 429 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:46,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1472 transitions. [2021-10-13 19:34:46,058 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1472 transitions. Word has length 6 [2021-10-13 19:34:46,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:46,058 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 1472 transitions. [2021-10-13 19:34:46,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:46,059 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1472 transitions. [2021-10-13 19:34:46,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 19:34:46,060 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:46,060 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:46,100 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 [2021-10-13 19:34:46,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:46,275 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-13 19:34:46,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:46,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1636064379, now seen corresponding path program 1 times [2021-10-13 19:34:46,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:46,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709869220] [2021-10-13 19:34:46,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:46,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:46,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:46,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:46,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709869220] [2021-10-13 19:34:46,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709869220] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:46,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995201735] [2021-10-13 19:34:46,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:46,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:46,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:46,326 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) [2021-10-13 19:34:46,352 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 [2021-10-13 19:34:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:46,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:34:46,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:46,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:46,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995201735] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:46,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:46,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-13 19:34:46,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188403894] [2021-10-13 19:34:46,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:34:46,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:46,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:34:46,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:34:46,426 INFO L87 Difference]: Start difference. First operand 430 states and 1472 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:46,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:46,456 INFO L93 Difference]: Finished difference Result 724 states and 2407 transitions. [2021-10-13 19:34:46,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:34:46,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-13 19:34:46,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:46,464 INFO L225 Difference]: With dead ends: 724 [2021-10-13 19:34:46,464 INFO L226 Difference]: Without dead ends: 724 [2021-10-13 19:34:46,466 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:34:46,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2021-10-13 19:34:46,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 492. [2021-10-13 19:34:46,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 466 states have (on average 3.869098712446352) internal successors, (1803), 491 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:46,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 1803 transitions. [2021-10-13 19:34:46,493 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 1803 transitions. Word has length 7 [2021-10-13 19:34:46,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:46,495 INFO L470 AbstractCegarLoop]: Abstraction has 492 states and 1803 transitions. [2021-10-13 19:34:46,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:46,498 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 1803 transitions. [2021-10-13 19:34:46,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 19:34:46,506 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:46,506 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:46,542 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 [2021-10-13 19:34:46,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:46,708 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-13 19:34:46,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:46,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1636064380, now seen corresponding path program 1 times [2021-10-13 19:34:46,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:46,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033620367] [2021-10-13 19:34:46,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:46,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:46,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:46,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:46,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033620367] [2021-10-13 19:34:46,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033620367] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:46,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573777676] [2021-10-13 19:34:46,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:46,752 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:46,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:46,754 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) [2021-10-13 19:34:46,765 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 [2021-10-13 19:34:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:46,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 19:34:46,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:46,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:46,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573777676] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:46,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:46,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5] total 8 [2021-10-13 19:34:46,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41840919] [2021-10-13 19:34:46,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 19:34:46,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:46,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 19:34:46,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:34:46,941 INFO L87 Difference]: Start difference. First operand 492 states and 1803 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:47,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:47,107 INFO L93 Difference]: Finished difference Result 892 states and 2871 transitions. [2021-10-13 19:34:47,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:34:47,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-13 19:34:47,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:47,117 INFO L225 Difference]: With dead ends: 892 [2021-10-13 19:34:47,117 INFO L226 Difference]: Without dead ends: 886 [2021-10-13 19:34:47,118 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 77.3ms TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-10-13 19:34:47,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2021-10-13 19:34:47,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 638. [2021-10-13 19:34:47,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 621 states have (on average 3.6457326892109503) internal successors, (2264), 637 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:47,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 2264 transitions. [2021-10-13 19:34:47,153 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 2264 transitions. Word has length 7 [2021-10-13 19:34:47,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:47,153 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 2264 transitions. [2021-10-13 19:34:47,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:47,154 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 2264 transitions. [2021-10-13 19:34:47,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:34:47,155 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:47,155 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:47,193 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 [2021-10-13 19:34:47,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:47,371 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-13 19:34:47,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:47,372 INFO L82 PathProgramCache]: Analyzing trace with hash -816098443, now seen corresponding path program 1 times [2021-10-13 19:34:47,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:47,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258447731] [2021-10-13 19:34:47,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:47,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:47,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:47,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:47,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258447731] [2021-10-13 19:34:47,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258447731] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:34:47,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:34:47,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:34:47,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105591363] [2021-10-13 19:34:47,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:34:47,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:47,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:34:47,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:34:47,413 INFO L87 Difference]: Start difference. First operand 638 states and 2264 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:47,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:47,439 INFO L93 Difference]: Finished difference Result 884 states and 3138 transitions. [2021-10-13 19:34:47,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:34:47,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 [2021-10-13 19:34:47,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:47,480 INFO L225 Difference]: With dead ends: 884 [2021-10-13 19:34:47,480 INFO L226 Difference]: Without dead ends: 884 [2021-10-13 19:34:47,481 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 [2021-10-13 19:34:47,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2021-10-13 19:34:47,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 760. [2021-10-13 19:34:47,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 743 states have (on average 3.798115746971736) internal successors, (2822), 759 states have internal predecessors, (2822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:47,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 2822 transitions. [2021-10-13 19:34:47,517 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 2822 transitions. Word has length 8 [2021-10-13 19:34:47,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:47,517 INFO L470 AbstractCegarLoop]: Abstraction has 760 states and 2822 transitions. [2021-10-13 19:34:47,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:47,518 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 2822 transitions. [2021-10-13 19:34:47,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:34:47,520 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:47,520 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-13 19:34:47,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 19:34:47,521 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-13 19:34:47,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:47,522 INFO L82 PathProgramCache]: Analyzing trace with hash -2070426895, now seen corresponding path program 2 times [2021-10-13 19:34:47,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:47,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048669541] [2021-10-13 19:34:47,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:47,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:47,607 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:34:47,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:47,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048669541] [2021-10-13 19:34:47,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048669541] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:47,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715923879] [2021-10-13 19:34:47,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:34:47,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:47,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:47,609 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) [2021-10-13 19:34:47,618 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 [2021-10-13 19:34:47,678 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:34:47,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:34:47,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:34:47,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:47,704 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:34:47,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715923879] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:34:47,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:34:47,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2021-10-13 19:34:47,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970234500] [2021-10-13 19:34:47,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:34:47,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:47,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:34:47,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:34:47,707 INFO L87 Difference]: Start difference. First operand 760 states and 2822 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-13 19:34:47,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:47,725 INFO L93 Difference]: Finished difference Result 612 states and 2274 transitions. [2021-10-13 19:34:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:34:47,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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 9 [2021-10-13 19:34:47,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:47,734 INFO L225 Difference]: With dead ends: 612 [2021-10-13 19:34:47,734 INFO L226 Difference]: Without dead ends: 604 [2021-10-13 19:34:47,734 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 11.3ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:34:47,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-10-13 19:34:47,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 418. [2021-10-13 19:34:47,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 413 states have (on average 3.5786924939467313) internal successors, (1478), 417 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:47,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1478 transitions. [2021-10-13 19:34:47,763 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1478 transitions. Word has length 9 [2021-10-13 19:34:47,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:47,764 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 1478 transitions. [2021-10-13 19:34:47,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-13 19:34:47,764 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1478 transitions. [2021-10-13 19:34:47,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:34:47,765 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:47,765 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:47,811 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 [2021-10-13 19:34:47,980 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,SelfDestructingSolverStorable9 [2021-10-13 19:34:47,981 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-13 19:34:47,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:47,981 INFO L82 PathProgramCache]: Analyzing trace with hash 470752611, now seen corresponding path program 1 times [2021-10-13 19:34:47,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:47,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123841004] [2021-10-13 19:34:47,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:47,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:48,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:48,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:48,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123841004] [2021-10-13 19:34:48,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123841004] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:48,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209027446] [2021-10-13 19:34:48,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:48,031 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:48,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:48,032 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) [2021-10-13 19:34:48,043 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 [2021-10-13 19:34:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:48,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:34:48,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:48,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:48,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209027446] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:34:48,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:34:48,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-10-13 19:34:48,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255326508] [2021-10-13 19:34:48,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:34:48,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:48,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:34:48,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:34:48,139 INFO L87 Difference]: Start difference. First operand 418 states and 1478 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:48,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:48,158 INFO L93 Difference]: Finished difference Result 410 states and 1386 transitions. [2021-10-13 19:34:48,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:34:48,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 19:34:48,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:48,162 INFO L225 Difference]: With dead ends: 410 [2021-10-13 19:34:48,163 INFO L226 Difference]: Without dead ends: 410 [2021-10-13 19:34:48,163 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:34:48,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-10-13 19:34:48,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 350. [2021-10-13 19:34:48,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 347 states have (on average 3.5734870317002883) internal successors, (1240), 349 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:48,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 1240 transitions. [2021-10-13 19:34:48,180 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 1240 transitions. Word has length 9 [2021-10-13 19:34:48,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:48,180 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 1240 transitions. [2021-10-13 19:34:48,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:48,181 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 1240 transitions. [2021-10-13 19:34:48,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:34:48,185 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:48,185 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:48,218 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 [2021-10-13 19:34:48,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:48,399 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-13 19:34:48,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:48,400 INFO L82 PathProgramCache]: Analyzing trace with hash 470752563, now seen corresponding path program 1 times [2021-10-13 19:34:48,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:48,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689579003] [2021-10-13 19:34:48,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:48,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:48,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:48,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:48,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689579003] [2021-10-13 19:34:48,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689579003] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:48,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426685212] [2021-10-13 19:34:48,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:48,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:48,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:48,434 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) [2021-10-13 19:34:48,463 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 [2021-10-13 19:34:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:48,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:34:48,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:48,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:48,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426685212] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:48,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:48,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-13 19:34:48,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779181634] [2021-10-13 19:34:48,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:34:48,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:48,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:34:48,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:34:48,544 INFO L87 Difference]: Start difference. First operand 350 states and 1240 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:48,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:48,561 INFO L93 Difference]: Finished difference Result 538 states and 1824 transitions. [2021-10-13 19:34:48,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:34:48,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 19:34:48,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:48,567 INFO L225 Difference]: With dead ends: 538 [2021-10-13 19:34:48,568 INFO L226 Difference]: Without dead ends: 538 [2021-10-13 19:34:48,568 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.1ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:34:48,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-10-13 19:34:48,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 418. [2021-10-13 19:34:48,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 415 states have (on average 3.6915662650602408) internal successors, (1532), 417 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:48,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1532 transitions. [2021-10-13 19:34:48,594 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1532 transitions. Word has length 9 [2021-10-13 19:34:48,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:48,594 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 1532 transitions. [2021-10-13 19:34:48,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:48,594 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1532 transitions. [2021-10-13 19:34:48,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:34:48,595 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:48,595 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:48,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-13 19:34:48,809 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,SelfDestructingSolverStorable11 [2021-10-13 19:34:48,810 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-13 19:34:48,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:48,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1713042801, now seen corresponding path program 1 times [2021-10-13 19:34:48,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:48,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175550116] [2021-10-13 19:34:48,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:48,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:48,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:48,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:48,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175550116] [2021-10-13 19:34:48,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175550116] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:34:48,843 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:34:48,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:34:48,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645024652] [2021-10-13 19:34:48,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:34:48,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:48,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:34:48,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:34:48,844 INFO L87 Difference]: Start difference. First operand 418 states and 1532 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) [2021-10-13 19:34:48,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:48,870 INFO L93 Difference]: Finished difference Result 332 states and 1200 transitions. [2021-10-13 19:34:48,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:34:48,870 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 [2021-10-13 19:34:48,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:48,874 INFO L225 Difference]: With dead ends: 332 [2021-10-13 19:34:48,874 INFO L226 Difference]: Without dead ends: 288 [2021-10-13 19:34:48,874 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:34:48,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-10-13 19:34:48,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2021-10-13 19:34:48,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 287 states have (on average 3.3937282229965158) internal successors, (974), 287 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:48,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 974 transitions. [2021-10-13 19:34:48,888 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 974 transitions. Word has length 10 [2021-10-13 19:34:48,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:48,889 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 974 transitions. [2021-10-13 19:34:48,889 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) [2021-10-13 19:34:48,889 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 974 transitions. [2021-10-13 19:34:48,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:34:48,891 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:48,891 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:48,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 19:34:48,892 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-13 19:34:48,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:48,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1708429573, now seen corresponding path program 2 times [2021-10-13 19:34:48,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:48,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115422377] [2021-10-13 19:34:48,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:48,893 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:48,956 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:48,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:48,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115422377] [2021-10-13 19:34:48,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115422377] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:48,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034674409] [2021-10-13 19:34:48,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:34:48,957 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:48,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:48,958 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) [2021-10-13 19:34:48,976 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 [2021-10-13 19:34:49,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:34:49,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:34:49,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:34:49,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:49,075 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 19:34:49,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034674409] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:34:49,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:34:49,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2021-10-13 19:34:49,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371720947] [2021-10-13 19:34:49,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:34:49,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:49,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:34:49,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:34:49,077 INFO L87 Difference]: Start difference. First operand 288 states and 974 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:49,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:49,083 INFO L93 Difference]: Finished difference Result 234 states and 786 transitions. [2021-10-13 19:34:49,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:34:49,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 19:34:49,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:49,084 INFO L225 Difference]: With dead ends: 234 [2021-10-13 19:34:49,084 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 19:34:49,084 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:34:49,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 19:34:49,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 19:34:49,085 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) [2021-10-13 19:34:49,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 19:34:49,085 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-13 19:34:49,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:49,085 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 19:34:49,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:49,086 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 19:34:49,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 19:34:49,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:34:49,089 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:34:49,089 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:34:49,089 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:34:49,089 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:34:49,090 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:34:49,090 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:34:49,090 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:34:49,090 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 19:34:49,090 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 19:34:49,091 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-13 19:34:49,091 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:34:49,091 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:34:49,091 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:34:49,091 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:34:49,091 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:34:49,092 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:34:49,125 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 [2021-10-13 19:34:49,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:49,313 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 19:34:49,313 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 19:34:49,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:34:49 BasicIcfg [2021-10-13 19:34:49,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 19:34:49,316 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 19:34:49,316 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 19:34:49,316 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 19:34:49,317 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:34:35" (3/4) ... [2021-10-13 19:34:49,320 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 19:34:49,332 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-13 19:34:49,332 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-13 19:34:49,332 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-13 19:34:49,340 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-13 19:34:49,340 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 19:34:49,340 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 19:34:49,341 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 19:34:49,393 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/popl20-more-min-array-hom.wvr.c-witness.graphml [2021-10-13 19:34:49,393 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 19:34:49,395 INFO L168 Benchmark]: Toolchain (without parser) took 14730.34 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 126.2 MB in the beginning and 155.4 MB in the end (delta: -29.2 MB). Peak memory consumption was 9.0 MB. Max. memory is 8.0 GB. [2021-10-13 19:34:49,395 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 122.0 MB in the beginning and 121.9 MB in the end (delta: 97.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 19:34:49,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.60 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 115.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-13 19:34:49,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.16 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 113.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-13 19:34:49,396 INFO L168 Benchmark]: Boogie Preprocessor took 55.02 ms. Allocated memory is still 151.0 MB. Free memory was 113.2 MB in the beginning and 111.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:34:49,397 INFO L168 Benchmark]: RCFGBuilder took 767.99 ms. Allocated memory is still 151.0 MB. Free memory was 111.7 MB in the beginning and 125.8 MB in the end (delta: -14.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:34:49,397 INFO L168 Benchmark]: TraceAbstraction took 13451.23 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 125.3 MB in the beginning and 159.0 MB in the end (delta: -33.8 MB). Peak memory consumption was 4.5 MB. Max. memory is 8.0 GB. [2021-10-13 19:34:49,398 INFO L168 Benchmark]: Witness Printer took 77.43 ms. Allocated memory is still 188.7 MB. Free memory was 159.0 MB in the beginning and 155.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:34:49,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 122.0 MB in the beginning and 121.9 MB in the end (delta: 97.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 319.60 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 115.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 46.16 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 113.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 55.02 ms. Allocated memory is still 151.0 MB. Free memory was 113.2 MB in the beginning and 111.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 767.99 ms. Allocated memory is still 151.0 MB. Free memory was 111.7 MB in the beginning and 125.8 MB in the end (delta: -14.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 13451.23 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 125.3 MB in the beginning and 159.0 MB in the end (delta: -33.8 MB). Peak memory consumption was 4.5 MB. Max. memory is 8.0 GB. * Witness Printer took 77.43 ms. Allocated memory is still 188.7 MB. Free memory was 159.0 MB in the beginning and 155.4 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: 7813.6ms, 157 PlacesBefore, 41 PlacesAfterwards, 160 TransitionsBefore, 35 TransitionsAfterwards, 2184 CoEnabledTransitionPairs, 7 FixpointIterations, 83 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 6 ConcurrentYvCompositions, 9 ChoiceCompositions, 165 TotalNumberOfCompositions, 2785 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2431, positive: 2396, positive conditional: 0, positive unconditional: 2396, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1479, positive: 1469, positive conditional: 0, positive unconditional: 1469, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1479, positive: 1469, positive conditional: 0, positive unconditional: 1469, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2431, positive: 927, positive conditional: 0, positive unconditional: 927, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 1479, unknown conditional: 0, unknown unconditional: 1479] , Statistics on independence cache: Total cache size (in pairs): 90, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - 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: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 110]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 110]: 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, 190 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 13300.9ms, OverallIterations: 14, TraceHistogramMax: 2, EmptinessCheckTime: 32.4ms, AutomataDifference: 785.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7916.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 442 SDtfs, 558 SDslu, 586 SDs, 0 SdLazy, 229 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 225.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 174.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=760occurred in iteration=9, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 462.2ms AutomataMinimizationTime, 14 MinimizatonAttempts, 2183 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 109.4ms SsaConstructionTime, 461.6ms SatisfiabilityAnalysisTime, 884.3ms InterpolantComputationTime, 156 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 321 SizeOfPredicates, 8 NumberOfNonLiveVariables, 948 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 23 InterpolantComputations, 10 PerfectInterpolantSequences, 30/49 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-13 19:34:49,442 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...