./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db5eab03de8fef3e653289c5dcf0b220be6d8b09a4df3c07d6d5a066426e755a --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:12:09,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:12:09,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:12:10,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:12:10,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:12:10,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:12:10,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:12:10,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:12:10,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:12:10,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:12:10,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:12:10,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:12:10,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:12:10,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:12:10,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:12:10,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:12:10,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:12:10,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:12:10,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:12:10,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:12:10,059 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:12:10,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:12:10,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:12:10,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:12:10,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:12:10,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:12:10,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:12:10,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:12:10,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:12:10,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:12:10,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:12:10,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:12:10,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:12:10,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:12:10,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:12:10,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:12:10,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:12:10,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:12:10,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:12:10,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:12:10,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:12:10,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:12:10,082 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:12:10,113 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:12:10,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:12:10,113 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:12:10,114 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:12:10,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:12:10,114 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:12:10,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:12:10,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:12:10,115 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:12:10,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:12:10,116 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:12:10,117 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:12:10,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:12:10,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:12:10,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:12:10,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:12:10,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:12:10,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:12:10,118 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:12:10,118 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:12:10,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:12:10,119 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:12:10,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:12:10,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:12:10,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:12:10,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:12:10,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:12:10,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:12:10,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:12:10,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:12:10,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:12:10,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:12:10,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:12:10,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db5eab03de8fef3e653289c5dcf0b220be6d8b09a4df3c07d6d5a066426e755a [2022-07-14 14:12:10,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:12:10,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:12:10,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:12:10,377 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:12:10,378 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:12:10,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i [2022-07-14 14:12:10,429 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8add4d9c/5d34c29272f747e4820e2f2c25f39d1a/FLAG63bc97b16 [2022-07-14 14:12:10,844 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:12:10,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i [2022-07-14 14:12:10,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8add4d9c/5d34c29272f747e4820e2f2c25f39d1a/FLAG63bc97b16 [2022-07-14 14:12:11,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8add4d9c/5d34c29272f747e4820e2f2c25f39d1a [2022-07-14 14:12:11,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:12:11,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:12:11,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:12:11,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:12:11,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:12:11,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:12:11" (1/1) ... [2022-07-14 14:12:11,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e6b640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:11, skipping insertion in model container [2022-07-14 14:12:11,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:12:11" (1/1) ... [2022-07-14 14:12:11,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:12:11,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:12:11,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i[47038,47051] [2022-07-14 14:12:11,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:12:11,722 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:12:11,754 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i[47038,47051] [2022-07-14 14:12:11,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:12:11,839 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:12:11,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:11 WrapperNode [2022-07-14 14:12:11,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:12:11,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:12:11,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:12:11,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:12:11,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:11" (1/1) ... [2022-07-14 14:12:11,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:11" (1/1) ... [2022-07-14 14:12:11,916 INFO L137 Inliner]: procedures = 278, calls = 60, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 241 [2022-07-14 14:12:11,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:12:11,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:12:11,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:12:11,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:12:11,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:11" (1/1) ... [2022-07-14 14:12:11,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:11" (1/1) ... [2022-07-14 14:12:11,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:11" (1/1) ... [2022-07-14 14:12:11,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:11" (1/1) ... [2022-07-14 14:12:11,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:11" (1/1) ... [2022-07-14 14:12:11,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:11" (1/1) ... [2022-07-14 14:12:11,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:11" (1/1) ... [2022-07-14 14:12:11,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:12:11,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:12:11,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:12:11,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:12:11,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:11" (1/1) ... [2022-07-14 14:12:11,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:12:12,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:12:12,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 14:12:12,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 14:12:12,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:12:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 14:12:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-07-14 14:12:12,081 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-07-14 14:12:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:12:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:12:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-07-14 14:12:12,082 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-07-14 14:12:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:12:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-14 14:12:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 14:12:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:12:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 14:12:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:12:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:12:12,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:12:12,085 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-14 14:12:12,255 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:12:12,257 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:12:12,563 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:12:12,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:12:12,572 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-07-14 14:12:12,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:12:12 BoogieIcfgContainer [2022-07-14 14:12:12,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:12:12,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:12:12,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:12:12,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:12:12,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:12:11" (1/3) ... [2022-07-14 14:12:12,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0fffd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:12:12, skipping insertion in model container [2022-07-14 14:12:12,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:11" (2/3) ... [2022-07-14 14:12:12,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0fffd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:12:12, skipping insertion in model container [2022-07-14 14:12:12,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:12:12" (3/3) ... [2022-07-14 14:12:12,581 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_86-lists_racing.i [2022-07-14 14:12:12,586 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-14 14:12:12,593 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:12:12,594 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-07-14 14:12:12,594 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-14 14:12:12,665 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-14 14:12:12,700 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:12:12,711 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 248 places, 268 transitions, 558 flow [2022-07-14 14:12:12,713 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 248 places, 268 transitions, 558 flow [2022-07-14 14:12:12,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 248 places, 268 transitions, 558 flow [2022-07-14 14:12:12,849 INFO L129 PetriNetUnfolder]: 54/500 cut-off events. [2022-07-14 14:12:12,849 INFO L130 PetriNetUnfolder]: For 8/16 co-relation queries the response was YES. [2022-07-14 14:12:12,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 520 conditions, 500 events. 54/500 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2048 event pairs, 0 based on Foata normal form. 0/410 useless extension candidates. Maximal degree in co-relation 252. Up to 8 conditions per place. [2022-07-14 14:12:12,874 INFO L116 LiptonReduction]: Number of co-enabled transitions 22184 [2022-07-14 14:12:40,970 INFO L131 LiptonReduction]: Checked pairs total: 37933 [2022-07-14 14:12:40,970 INFO L133 LiptonReduction]: Total number of compositions: 243 [2022-07-14 14:12:40,983 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 83 transitions, 188 flow [2022-07-14 14:12:41,135 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3880 states, 3796 states have (on average 3.160695468914647) internal successors, (11998), 3879 states have internal predecessors, (11998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:12:41,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:12:41,159 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7b86964f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@65e05b88 [2022-07-14 14:12:41,159 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-07-14 14:12:41,172 INFO L276 IsEmpty]: Start isEmpty. Operand has 3880 states, 3796 states have (on average 3.160695468914647) internal successors, (11998), 3879 states have internal predecessors, (11998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:12:41,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-14 14:12:41,179 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:12:41,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-14 14:12:41,180 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 14:12:41,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:12:41,188 INFO L85 PathProgramCache]: Analyzing trace with hash 33597, now seen corresponding path program 1 times [2022-07-14 14:12:41,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:12:41,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478101113] [2022-07-14 14:12:41,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:12:41,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:12:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:12:41,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:12:41,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:12:41,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478101113] [2022-07-14 14:12:41,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478101113] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:12:41,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:12:41,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:12:41,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684041038] [2022-07-14 14:12:41,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:12:41,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:12:41,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:12:41,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:12:41,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:12:41,465 INFO L87 Difference]: Start difference. First operand has 3880 states, 3796 states have (on average 3.160695468914647) internal successors, (11998), 3879 states have internal predecessors, (11998), 0 states have call successors, (0), 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) [2022-07-14 14:12:41,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:12:41,682 INFO L93 Difference]: Finished difference Result 3880 states and 10458 transitions. [2022-07-14 14:12:41,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:12:41,685 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 [2022-07-14 14:12:41,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:12:41,722 INFO L225 Difference]: With dead ends: 3880 [2022-07-14 14:12:41,722 INFO L226 Difference]: Without dead ends: 3680 [2022-07-14 14:12:41,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:12:41,726 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:12:41,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:12:41,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3680 states. [2022-07-14 14:12:41,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3680 to 3680. [2022-07-14 14:12:41,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3602 states have (on average 2.747362576346474) internal successors, (9896), 3679 states have internal predecessors, (9896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:12:41,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 9896 transitions. [2022-07-14 14:12:41,911 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 9896 transitions. Word has length 2 [2022-07-14 14:12:41,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:12:41,911 INFO L495 AbstractCegarLoop]: Abstraction has 3680 states and 9896 transitions. [2022-07-14 14:12:41,911 INFO L496 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) [2022-07-14 14:12:41,912 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 9896 transitions. [2022-07-14 14:12:41,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-14 14:12:41,912 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:12:41,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-14 14:12:41,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:12:41,913 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 14:12:41,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:12:41,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1042554, now seen corresponding path program 1 times [2022-07-14 14:12:41,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:12:41,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074293937] [2022-07-14 14:12:41,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:12:41,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:12:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:12:41,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:12:41,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:12:41,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074293937] [2022-07-14 14:12:41,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074293937] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:12:41,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506254045] [2022-07-14 14:12:41,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:12:41,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:12:41,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:12:41,980 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:12:42,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 14:12:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:12:42,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:12:42,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:12:42,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:12:42,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:12:42,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506254045] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:12:42,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:12:42,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-07-14 14:12:42,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750538601] [2022-07-14 14:12:42,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:12:42,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:12:42,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:12:42,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:12:42,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:12:42,146 INFO L87 Difference]: Start difference. First operand 3680 states and 9896 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:12:42,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:12:42,295 INFO L93 Difference]: Finished difference Result 3679 states and 9895 transitions. [2022-07-14 14:12:42,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:12:42,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-07-14 14:12:42,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:12:42,361 INFO L225 Difference]: With dead ends: 3679 [2022-07-14 14:12:42,362 INFO L226 Difference]: Without dead ends: 3679 [2022-07-14 14:12:42,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:12:42,363 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:12:42,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 11 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:12:42,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3679 states. [2022-07-14 14:12:42,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3679 to 3679. [2022-07-14 14:12:42,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3679 states, 3602 states have (on average 2.7470849528039976) internal successors, (9895), 3678 states have internal predecessors, (9895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:12:42,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3679 states to 3679 states and 9895 transitions. [2022-07-14 14:12:42,463 INFO L78 Accepts]: Start accepts. Automaton has 3679 states and 9895 transitions. Word has length 3 [2022-07-14 14:12:42,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:12:42,463 INFO L495 AbstractCegarLoop]: Abstraction has 3679 states and 9895 transitions. [2022-07-14 14:12:42,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:12:42,464 INFO L276 IsEmpty]: Start isEmpty. Operand 3679 states and 9895 transitions. [2022-07-14 14:12:42,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 14:12:42,465 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:12:42,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-14 14:12:42,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 14:12:42,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:12:42,688 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 14:12:42,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:12:42,689 INFO L85 PathProgramCache]: Analyzing trace with hash 992332942, now seen corresponding path program 1 times [2022-07-14 14:12:42,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:12:42,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962347877] [2022-07-14 14:12:42,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:12:42,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:12:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:12:42,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:12:42,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:12:42,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962347877] [2022-07-14 14:12:42,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962347877] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:12:42,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662249494] [2022-07-14 14:12:42,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:12:42,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:12:42,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:12:42,752 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:12:42,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 14:12:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:12:42,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:12:42,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:12:42,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:12:42,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:12:42,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:12:42,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662249494] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:12:42,913 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:12:42,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-07-14 14:12:42,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971560013] [2022-07-14 14:12:42,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:12:42,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:12:42,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:12:42,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:12:42,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:12:42,917 INFO L87 Difference]: Start difference. First operand 3679 states and 9895 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 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) [2022-07-14 14:12:43,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:12:43,131 INFO L93 Difference]: Finished difference Result 3682 states and 9898 transitions. [2022-07-14 14:12:43,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:12:43,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-14 14:12:43,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:12:43,148 INFO L225 Difference]: With dead ends: 3682 [2022-07-14 14:12:43,149 INFO L226 Difference]: Without dead ends: 3682 [2022-07-14 14:12:43,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:12:43,150 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:12:43,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:12:43,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3682 states. [2022-07-14 14:12:43,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3682 to 3682. [2022-07-14 14:12:43,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3682 states, 3605 states have (on average 2.745631067961165) internal successors, (9898), 3681 states have internal predecessors, (9898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:12:43,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3682 states to 3682 states and 9898 transitions. [2022-07-14 14:12:43,256 INFO L78 Accepts]: Start accepts. Automaton has 3682 states and 9898 transitions. Word has length 6 [2022-07-14 14:12:43,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:12:43,257 INFO L495 AbstractCegarLoop]: Abstraction has 3682 states and 9898 transitions. [2022-07-14 14:12:43,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 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) [2022-07-14 14:12:43,257 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 9898 transitions. [2022-07-14 14:12:43,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 14:12:43,258 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:12:43,258 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2022-07-14 14:12:43,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 14:12:43,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-14 14:12:43,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 14:12:43,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:12:43,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1975425109, now seen corresponding path program 2 times [2022-07-14 14:12:43,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:12:43,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017664451] [2022-07-14 14:12:43,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:12:43,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:12:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:12:43,592 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-14 14:12:43,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:12:43,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017664451] [2022-07-14 14:12:43,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017664451] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:12:43,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:12:43,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:12:43,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758837885] [2022-07-14 14:12:43,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:12:43,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:12:43,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:12:43,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:12:43,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:12:43,595 INFO L87 Difference]: Start difference. First operand 3682 states and 9898 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-07-14 14:12:43,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:12:43,839 INFO L93 Difference]: Finished difference Result 3504 states and 9539 transitions. [2022-07-14 14:12:43,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:12:43,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 9 [2022-07-14 14:12:43,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:12:43,857 INFO L225 Difference]: With dead ends: 3504 [2022-07-14 14:12:43,857 INFO L226 Difference]: Without dead ends: 3504 [2022-07-14 14:12:43,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:12:43,873 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:12:43,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 22 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:12:43,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3504 states. [2022-07-14 14:12:43,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3504 to 3504. [2022-07-14 14:12:43,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3504 states, 3444 states have (on average 2.7697444831591174) internal successors, (9539), 3503 states have internal predecessors, (9539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:12:43,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3504 states to 3504 states and 9539 transitions. [2022-07-14 14:12:43,997 INFO L78 Accepts]: Start accepts. Automaton has 3504 states and 9539 transitions. Word has length 9 [2022-07-14 14:12:43,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:12:44,002 INFO L495 AbstractCegarLoop]: Abstraction has 3504 states and 9539 transitions. [2022-07-14 14:12:44,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-07-14 14:12:44,003 INFO L276 IsEmpty]: Start isEmpty. Operand 3504 states and 9539 transitions. [2022-07-14 14:12:44,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:12:44,004 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:12:44,004 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2022-07-14 14:12:44,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 14:12:44,004 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 14:12:44,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:12:44,005 INFO L85 PathProgramCache]: Analyzing trace with hash -7907543, now seen corresponding path program 1 times [2022-07-14 14:12:44,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:12:44,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999297092] [2022-07-14 14:12:44,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:12:44,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:12:44,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:12:44,080 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 14:12:44,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:12:44,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999297092] [2022-07-14 14:12:44,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999297092] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:12:44,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234240160] [2022-07-14 14:12:44,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:12:44,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:12:44,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:12:44,083 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:12:44,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 14:12:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:12:44,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 14:12:44,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:12:44,257 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 14:12:44,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:12:44,329 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 14:12:44,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234240160] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:12:44,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:12:44,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-07-14 14:12:44,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068987587] [2022-07-14 14:12:44,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:12:44,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 14:12:44,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:12:44,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 14:12:44,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-14 14:12:44,332 INFO L87 Difference]: Start difference. First operand 3504 states and 9539 transitions. Second operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:12:44,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:12:44,508 INFO L93 Difference]: Finished difference Result 3510 states and 9545 transitions. [2022-07-14 14:12:44,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 14:12:44,509 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-14 14:12:44,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:12:44,526 INFO L225 Difference]: With dead ends: 3510 [2022-07-14 14:12:44,526 INFO L226 Difference]: Without dead ends: 3510 [2022-07-14 14:12:44,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-14 14:12:44,527 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:12:44,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:12:44,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3510 states. [2022-07-14 14:12:44,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3510 to 3510. [2022-07-14 14:12:44,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 3450 states have (on average 2.7666666666666666) internal successors, (9545), 3509 states have internal predecessors, (9545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:12:44,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 9545 transitions. [2022-07-14 14:12:44,623 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 9545 transitions. Word has length 11 [2022-07-14 14:12:44,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:12:44,624 INFO L495 AbstractCegarLoop]: Abstraction has 3510 states and 9545 transitions. [2022-07-14 14:12:44,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:12:44,624 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 9545 transitions. [2022-07-14 14:12:44,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-14 14:12:44,625 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:12:44,625 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1] [2022-07-14 14:12:44,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 14:12:44,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:12:44,847 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 14:12:44,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:12:44,848 INFO L85 PathProgramCache]: Analyzing trace with hash -654158775, now seen corresponding path program 2 times [2022-07-14 14:12:44,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:12:44,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605735644] [2022-07-14 14:12:44,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:12:44,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:12:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:12:45,152 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 14:12:45,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:12:45,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605735644] [2022-07-14 14:12:45,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605735644] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:12:45,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110291826] [2022-07-14 14:12:45,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:12:45,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:12:45,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:12:45,156 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:12:45,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 14:12:45,409 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 14:12:45,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:12:45,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 14:12:45,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:12:45,451 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 14:12:45,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:12:45,683 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 14:12:45,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110291826] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:12:45,684 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:12:45,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2022-07-14 14:12:45,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386175687] [2022-07-14 14:12:45,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:12:45,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-07-14 14:12:45,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:12:45,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-14 14:12:45,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-07-14 14:12:45,685 INFO L87 Difference]: Start difference. First operand 3510 states and 9545 transitions. Second operand has 25 states, 25 states have (on average 1.2) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:12:45,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:12:45,993 INFO L93 Difference]: Finished difference Result 3522 states and 9557 transitions. [2022-07-14 14:12:45,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-14 14:12:45,993 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.2) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-14 14:12:45,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:12:46,003 INFO L225 Difference]: With dead ends: 3522 [2022-07-14 14:12:46,004 INFO L226 Difference]: Without dead ends: 3522 [2022-07-14 14:12:46,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-07-14 14:12:46,005 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 14:12:46,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 14:12:46,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2022-07-14 14:12:46,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 3522. [2022-07-14 14:12:46,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3522 states, 3462 states have (on average 2.76054303870595) internal successors, (9557), 3521 states have internal predecessors, (9557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:12:46,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3522 states to 3522 states and 9557 transitions. [2022-07-14 14:12:46,094 INFO L78 Accepts]: Start accepts. Automaton has 3522 states and 9557 transitions. Word has length 17 [2022-07-14 14:12:46,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:12:46,095 INFO L495 AbstractCegarLoop]: Abstraction has 3522 states and 9557 transitions. [2022-07-14 14:12:46,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.2) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:12:46,095 INFO L276 IsEmpty]: Start isEmpty. Operand 3522 states and 9557 transitions. [2022-07-14 14:12:46,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-14 14:12:46,096 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:12:46,096 INFO L195 NwaCegarLoop]: trace histogram [22, 2, 1, 1, 1, 1, 1] [2022-07-14 14:12:46,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 14:12:46,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:12:46,311 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 14:12:46,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:12:46,312 INFO L85 PathProgramCache]: Analyzing trace with hash 345720457, now seen corresponding path program 3 times [2022-07-14 14:12:46,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:12:46,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869941073] [2022-07-14 14:12:46,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:12:46,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:12:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:12:46,817 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 14:12:46,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:12:46,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869941073] [2022-07-14 14:12:46,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869941073] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:12:46,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104790639] [2022-07-14 14:12:46,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 14:12:46,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:12:46,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:12:46,827 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:12:46,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process