./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_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_90-arrayloop2_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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:12:12,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:12:12,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:12:13,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:12:13,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:12:13,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:12:13,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:12:13,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:12:13,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:12:13,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:12:13,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:12:13,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:12:13,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:12:13,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:12:13,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:12:13,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:12:13,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:12:13,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:12:13,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:12:13,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:12:13,038 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:12:13,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:12:13,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:12:13,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:12:13,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:12:13,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:12:13,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:12:13,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:12:13,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:12:13,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:12:13,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:12:13,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:12:13,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:12:13,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:12:13,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:12:13,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:12:13,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:12:13,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:12:13,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:12:13,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:12:13,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:12:13,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:12:13,060 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:12:13,085 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:12:13,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:12:13,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:12:13,086 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:12:13,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:12:13,087 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:12:13,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:12:13,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:12:13,088 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:12:13,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:12:13,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:12:13,089 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:12:13,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:12:13,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:12:13,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:12:13,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:12:13,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:12:13,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:12:13,090 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:12:13,090 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:12:13,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:12:13,090 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:12:13,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:12:13,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:12:13,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:12:13,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:12:13,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:12:13,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:12:13,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:12:13,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:12:13,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:12:13,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:12:13,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:12:13,092 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2022-07-14 14:12:13,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:12:13,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:12:13,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:12:13,306 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:12:13,307 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:12:13,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2022-07-14 14:12:13,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5be1f0eb7/5ba132f8f0774728a379983b34cd4288/FLAGd23814388 [2022-07-14 14:12:13,725 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:12:13,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2022-07-14 14:12:13,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5be1f0eb7/5ba132f8f0774728a379983b34cd4288/FLAGd23814388 [2022-07-14 14:12:14,102 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5be1f0eb7/5ba132f8f0774728a379983b34cd4288 [2022-07-14 14:12:14,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:12:14,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:12:14,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:12:14,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:12:14,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:12:14,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:12:14" (1/1) ... [2022-07-14 14:12:14,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd4164f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:14, skipping insertion in model container [2022-07-14 14:12:14,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:12:14" (1/1) ... [2022-07-14 14:12:14,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:12:14,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:12:14,486 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_90-arrayloop2_racing.i[47038,47051] [2022-07-14 14:12:14,496 WARN L1550 CHandler]: Possible shadowing of function new [2022-07-14 14:12:14,497 WARN L1550 CHandler]: Possible shadowing of function new [2022-07-14 14:12:14,497 WARN L1550 CHandler]: Possible shadowing of function new [2022-07-14 14:12:14,498 WARN L1550 CHandler]: Possible shadowing of function new [2022-07-14 14:12:14,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:12:14,556 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:12:14,593 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_90-arrayloop2_racing.i[47038,47051] [2022-07-14 14:12:14,595 WARN L1550 CHandler]: Possible shadowing of function new [2022-07-14 14:12:14,596 WARN L1550 CHandler]: Possible shadowing of function new [2022-07-14 14:12:14,596 WARN L1550 CHandler]: Possible shadowing of function new [2022-07-14 14:12:14,596 WARN L1550 CHandler]: Possible shadowing of function new [2022-07-14 14:12:14,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:12:14,649 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:12:14,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:14 WrapperNode [2022-07-14 14:12:14,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:12:14,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:12:14,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:12:14,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:12:14,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:14" (1/1) ... [2022-07-14 14:12:14,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:14" (1/1) ... [2022-07-14 14:12:14,700 INFO L137 Inliner]: procedures = 278, calls = 64, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 328 [2022-07-14 14:12:14,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:12:14,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:12:14,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:12:14,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:12:14,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:14" (1/1) ... [2022-07-14 14:12:14,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:14" (1/1) ... [2022-07-14 14:12:14,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:14" (1/1) ... [2022-07-14 14:12:14,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:14" (1/1) ... [2022-07-14 14:12:14,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:14" (1/1) ... [2022-07-14 14:12:14,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:14" (1/1) ... [2022-07-14 14:12:14,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:14" (1/1) ... [2022-07-14 14:12:14,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:12:14,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:12:14,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:12:14,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:12:14,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:14" (1/1) ... [2022-07-14 14:12:14,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:12:14,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:12:14,779 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 14:12:14,785 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 14:12:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:12:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 14:12:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-07-14 14:12:14,814 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-07-14 14:12:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:12:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:12:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-07-14 14:12:14,815 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-07-14 14:12:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:12:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-14 14:12:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 14:12:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:12:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 14:12:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:12:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:12:14,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:12:14,817 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 14:12:14,938 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:12:14,939 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:12:15,328 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:12:15,344 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:12:15,344 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2022-07-14 14:12:15,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:12:15 BoogieIcfgContainer [2022-07-14 14:12:15,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:12:15,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:12:15,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:12:15,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:12:15,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:12:14" (1/3) ... [2022-07-14 14:12:15,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b84d14f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:12:15, skipping insertion in model container [2022-07-14 14:12:15,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:14" (2/3) ... [2022-07-14 14:12:15,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b84d14f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:12:15, skipping insertion in model container [2022-07-14 14:12:15,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:12:15" (3/3) ... [2022-07-14 14:12:15,357 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2022-07-14 14:12:15,362 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-14 14:12:15,368 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:12:15,368 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-07-14 14:12:15,368 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-14 14:12:15,461 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-14 14:12:15,494 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:12:15,502 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 331 places, 372 transitions, 766 flow [2022-07-14 14:12:15,505 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 331 places, 372 transitions, 766 flow [2022-07-14 14:12:15,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 331 places, 372 transitions, 766 flow [2022-07-14 14:12:15,651 INFO L129 PetriNetUnfolder]: 77/603 cut-off events. [2022-07-14 14:12:15,651 INFO L130 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2022-07-14 14:12:15,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 603 events. 77/603 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3080 event pairs, 0 based on Foata normal form. 0/474 useless extension candidates. Maximal degree in co-relation 303. Up to 8 conditions per place. [2022-07-14 14:12:15,711 INFO L116 LiptonReduction]: Number of co-enabled transitions 45816 [2022-07-14 14:12:58,500 WARN L233 SmtUtils]: Spent 11.68s on a formula simplification. DAG size of input: 190 DAG size of output: 188 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-14 14:13:03,608 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification that was a NOOP. DAG size: 180 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-14 14:13:19,588 WARN L233 SmtUtils]: Spent 15.98s on a formula simplification. DAG size of input: 190 DAG size of output: 188 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-14 14:13:25,035 WARN L233 SmtUtils]: Spent 5.44s on a formula simplification that was a NOOP. DAG size: 180 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-14 14:13:37,545 WARN L233 SmtUtils]: Spent 12.45s on a formula simplification. DAG size of input: 188 DAG size of output: 186 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-14 14:13:44,813 WARN L233 SmtUtils]: Spent 7.26s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-14 14:13:58,073 WARN L233 SmtUtils]: Spent 13.26s on a formula simplification. DAG size of input: 188 DAG size of output: 186 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-14 14:14:05,133 WARN L233 SmtUtils]: Spent 7.06s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-14 14:14:05,161 INFO L131 LiptonReduction]: Checked pairs total: 70525 [2022-07-14 14:14:05,162 INFO L133 LiptonReduction]: Total number of compositions: 360 [2022-07-14 14:14:05,167 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 119 transitions, 260 flow [2022-07-14 14:14:05,473 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9111 states, 8595 states have (on average 3.8594531704479347) internal successors, (33172), 9110 states have internal predecessors, (33172), 0 states have call successors, (0), 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 14:14:05,489 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:14:05,492 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@6974f6d9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@76f08f60 [2022-07-14 14:14:05,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2022-07-14 14:14:05,522 INFO L276 IsEmpty]: Start isEmpty. Operand has 9111 states, 8595 states have (on average 3.8594531704479347) internal successors, (33172), 9110 states have internal predecessors, (33172), 0 states have call successors, (0), 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 14:14:05,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-14 14:14:05,527 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:05,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-14 14:14:05,528 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-14 14:14:05,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:05,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1506296, now seen corresponding path program 1 times [2022-07-14 14:14:05,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:05,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357269712] [2022-07-14 14:14:05,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:05,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:05,652 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 14:14:05,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:05,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357269712] [2022-07-14 14:14:05,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357269712] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:05,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:14:05,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:14:05,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724234568] [2022-07-14 14:14:05,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:05,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-14 14:14:05,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:05,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 14:14:05,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 14:14:05,698 INFO L87 Difference]: Start difference. First operand has 9111 states, 8595 states have (on average 3.8594531704479347) internal successors, (33172), 9110 states have internal predecessors, (33172), 0 states have call successors, (0), 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 2 states, 1 states have (on average 3.0) 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) [2022-07-14 14:14:06,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:06,091 INFO L93 Difference]: Finished difference Result 8500 states and 25045 transitions. [2022-07-14 14:14:06,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 14:14:06,093 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) 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 3 [2022-07-14 14:14:06,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:06,159 INFO L225 Difference]: With dead ends: 8500 [2022-07-14 14:14:06,159 INFO L226 Difference]: Without dead ends: 8493 [2022-07-14 14:14:06,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 14:14:06,165 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:06,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:14:06,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8493 states. [2022-07-14 14:14:06,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8493 to 8493. [2022-07-14 14:14:06,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8493 states, 8083 states have (on average 3.096869974019547) internal successors, (25032), 8492 states have internal predecessors, (25032), 0 states have call successors, (0), 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 14:14:06,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8493 states to 8493 states and 25032 transitions. [2022-07-14 14:14:06,710 INFO L78 Accepts]: Start accepts. Automaton has 8493 states and 25032 transitions. Word has length 3 [2022-07-14 14:14:06,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:06,710 INFO L495 AbstractCegarLoop]: Abstraction has 8493 states and 25032 transitions. [2022-07-14 14:14:06,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) 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) [2022-07-14 14:14:06,711 INFO L276 IsEmpty]: Start isEmpty. Operand 8493 states and 25032 transitions. [2022-07-14 14:14:06,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-14 14:14:06,712 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:06,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-14 14:14:06,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:14:06,715 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-14 14:14:06,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:06,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1506297, now seen corresponding path program 1 times [2022-07-14 14:14:06,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:06,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723459796] [2022-07-14 14:14:06,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:06,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:06,764 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:14:06,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [313672293] [2022-07-14 14:14:06,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:06,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:06,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:06,767 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 14:14:06,770 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 14:14:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:06,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:14:06,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:06,949 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 14:14:06,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:14:06,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:06,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723459796] [2022-07-14 14:14:06,963 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:14:06,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313672293] [2022-07-14 14:14:06,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313672293] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:06,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:14:06,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:14:06,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87797823] [2022-07-14 14:14:06,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:06,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:14:06,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:06,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:14:06,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:06,985 INFO L87 Difference]: Start difference. First operand 8493 states and 25032 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) [2022-07-14 14:14:07,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:07,499 INFO L93 Difference]: Finished difference Result 16978 states and 50055 transitions. [2022-07-14 14:14:07,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:14:07,499 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 [2022-07-14 14:14:07,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:07,684 INFO L225 Difference]: With dead ends: 16978 [2022-07-14 14:14:07,684 INFO L226 Difference]: Without dead ends: 16978 [2022-07-14 14:14:07,685 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 14:14:07,685 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 92 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:07,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 42 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 14:14:07,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16978 states. [2022-07-14 14:14:08,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16978 to 8492. [2022-07-14 14:14:08,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8492 states, 8083 states have (on average 3.096746257577632) internal successors, (25031), 8491 states have internal predecessors, (25031), 0 states have call successors, (0), 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 14:14:08,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8492 states to 8492 states and 25031 transitions. [2022-07-14 14:14:08,098 INFO L78 Accepts]: Start accepts. Automaton has 8492 states and 25031 transitions. Word has length 3 [2022-07-14 14:14:08,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:08,099 INFO L495 AbstractCegarLoop]: Abstraction has 8492 states and 25031 transitions. [2022-07-14 14:14:08,099 INFO L496 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) [2022-07-14 14:14:08,099 INFO L276 IsEmpty]: Start isEmpty. Operand 8492 states and 25031 transitions. [2022-07-14 14:14:08,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-14 14:14:08,100 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:08,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-14 14:14:08,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-14 14:14:08,335 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 14:14:08,336 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-14 14:14:08,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:08,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1505980, now seen corresponding path program 1 times [2022-07-14 14:14:08,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:08,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042999080] [2022-07-14 14:14:08,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:08,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:08,353 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:14:08,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [319137447] [2022-07-14 14:14:08,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:08,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:08,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:08,360 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 14:14:08,361 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 14:14:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:08,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:14:08,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:08,449 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 14:14:08,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:14:08,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:08,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042999080] [2022-07-14 14:14:08,450 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:14:08,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319137447] [2022-07-14 14:14:08,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319137447] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:08,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:14:08,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:14:08,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207136234] [2022-07-14 14:14:08,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:08,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:14:08,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:08,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:14:08,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:08,452 INFO L87 Difference]: Start difference. First operand 8492 states and 25031 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) [2022-07-14 14:14:08,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:08,815 INFO L93 Difference]: Finished difference Result 8494 states and 25034 transitions. [2022-07-14 14:14:08,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:14:08,815 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 3 [2022-07-14 14:14:08,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:08,854 INFO L225 Difference]: With dead ends: 8494 [2022-07-14 14:14:08,854 INFO L226 Difference]: Without dead ends: 8494 [2022-07-14 14:14:08,855 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 14:14:08,855 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:08,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 28 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 14:14:08,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8494 states. [2022-07-14 14:14:09,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8494 to 8494. [2022-07-14 14:14:09,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8494 states, 8085 states have (on average 3.096351267779839) internal successors, (25034), 8493 states have internal predecessors, (25034), 0 states have call successors, (0), 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 14:14:09,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8494 states to 8494 states and 25034 transitions. [2022-07-14 14:14:09,088 INFO L78 Accepts]: Start accepts. Automaton has 8494 states and 25034 transitions. Word has length 3 [2022-07-14 14:14:09,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:09,089 INFO L495 AbstractCegarLoop]: Abstraction has 8494 states and 25034 transitions. [2022-07-14 14:14:09,089 INFO L496 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) [2022-07-14 14:14:09,089 INFO L276 IsEmpty]: Start isEmpty. Operand 8494 states and 25034 transitions. [2022-07-14 14:14:09,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-14 14:14:09,090 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:09,090 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1] [2022-07-14 14:14:09,115 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 14:14:09,303 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 14:14:09,303 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-14 14:14:09,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:09,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1447517875, now seen corresponding path program 1 times [2022-07-14 14:14:09,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:09,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794371700] [2022-07-14 14:14:09,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:09,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:09,332 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:14:09,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1614719009] [2022-07-14 14:14:09,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:09,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:09,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:09,341 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 14:14:09,342 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 14:14:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:09,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:14:09,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:09,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:14:09,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:14:09,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:09,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794371700] [2022-07-14 14:14:09,436 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:14:09,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614719009] [2022-07-14 14:14:09,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614719009] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:09,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:14:09,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:14:09,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900301532] [2022-07-14 14:14:09,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:09,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:14:09,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:09,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:14:09,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:09,438 INFO L87 Difference]: Start difference. First operand 8494 states and 25034 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:09,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:09,848 INFO L93 Difference]: Finished difference Result 8498 states and 25038 transitions. [2022-07-14 14:14:09,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:14:09,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-07-14 14:14:09,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:09,876 INFO L225 Difference]: With dead ends: 8498 [2022-07-14 14:14:09,876 INFO L226 Difference]: Without dead ends: 8498 [2022-07-14 14:14:09,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 14:14:09,877 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:09,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 28 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 14:14:09,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8498 states. [2022-07-14 14:14:10,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8498 to 8496. [2022-07-14 14:14:10,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8496 states, 8087 states have (on average 3.096080128601459) internal successors, (25038), 8495 states have internal predecessors, (25038), 0 states have call successors, (0), 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 14:14:10,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 25038 transitions. [2022-07-14 14:14:10,177 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 25038 transitions. Word has length 5 [2022-07-14 14:14:10,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:10,178 INFO L495 AbstractCegarLoop]: Abstraction has 8496 states and 25038 transitions. [2022-07-14 14:14:10,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:10,178 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 25038 transitions. [2022-07-14 14:14:10,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 14:14:10,178 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:10,178 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-07-14 14:14:10,198 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 14:14:10,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:10,392 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-14 14:14:10,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:10,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1925764538, now seen corresponding path program 1 times [2022-07-14 14:14:10,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:10,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009822656] [2022-07-14 14:14:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:10,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:10,416 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:14:10,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [933226651] [2022-07-14 14:14:10,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:10,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:10,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:10,429 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 14:14:10,431 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 14:14:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:10,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:14:10,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:10,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:14:10,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:14:10,588 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:14:10,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:10,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009822656] [2022-07-14 14:14:10,588 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:14:10,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933226651] [2022-07-14 14:14:10,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933226651] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:14:10,589 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:14:10,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-14 14:14:10,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567701389] [2022-07-14 14:14:10,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:14:10,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 14:14:10,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:10,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 14:14:10,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:14:10,590 INFO L87 Difference]: Start difference. First operand 8496 states and 25038 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:11,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:11,243 INFO L93 Difference]: Finished difference Result 8508 states and 25050 transitions. [2022-07-14 14:14:11,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:14:11,243 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-14 14:14:11,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:11,267 INFO L225 Difference]: With dead ends: 8508 [2022-07-14 14:14:11,267 INFO L226 Difference]: Without dead ends: 8508 [2022-07-14 14:14:11,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:14:11,268 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 10 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:11,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 56 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 14:14:11,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8508 states. [2022-07-14 14:14:11,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8508 to 8502. [2022-07-14 14:14:11,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8502 states, 8093 states have (on average 3.0952675151365376) internal successors, (25050), 8501 states have internal predecessors, (25050), 0 states have call successors, (0), 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 14:14:11,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8502 states to 8502 states and 25050 transitions. [2022-07-14 14:14:11,528 INFO L78 Accepts]: Start accepts. Automaton has 8502 states and 25050 transitions. Word has length 6 [2022-07-14 14:14:11,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:11,529 INFO L495 AbstractCegarLoop]: Abstraction has 8502 states and 25050 transitions. [2022-07-14 14:14:11,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:11,529 INFO L276 IsEmpty]: Start isEmpty. Operand 8502 states and 25050 transitions. [2022-07-14 14:14:11,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 14:14:11,530 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:11,530 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1] [2022-07-14 14:14:11,548 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 14:14:11,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:11,745 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-14 14:14:11,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:11,746 INFO L85 PathProgramCache]: Analyzing trace with hash 644900979, now seen corresponding path program 2 times [2022-07-14 14:14:11,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:11,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835831669] [2022-07-14 14:14:11,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:11,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:11,785 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:14:11,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [33463769] [2022-07-14 14:14:11,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:14:11,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:11,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:11,787 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 14:14:11,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 14:14:11,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 14:14:11,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:14:11,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:14:11,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:11,962 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-14 14:14:11,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:14:11,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:11,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835831669] [2022-07-14 14:14:11,962 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:14:11,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33463769] [2022-07-14 14:14:11,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33463769] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:11,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:14:11,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:14:11,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014023342] [2022-07-14 14:14:11,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:11,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:14:11,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:11,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:14:11,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:11,965 INFO L87 Difference]: Start difference. First operand 8502 states and 25050 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 14:14:12,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:12,246 INFO L93 Difference]: Finished difference Result 8502 states and 25048 transitions. [2022-07-14 14:14:12,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:14:12,247 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 14:14:12,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:12,267 INFO L225 Difference]: With dead ends: 8502 [2022-07-14 14:14:12,268 INFO L226 Difference]: Without dead ends: 8502 [2022-07-14 14:14:12,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 14:14:12,269 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:12,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:14:12,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8502 states. [2022-07-14 14:14:12,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8502 to 8502. [2022-07-14 14:14:12,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8502 states, 8093 states have (on average 3.0950203879896208) internal successors, (25048), 8501 states have internal predecessors, (25048), 0 states have call successors, (0), 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 14:14:12,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8502 states to 8502 states and 25048 transitions. [2022-07-14 14:14:12,434 INFO L78 Accepts]: Start accepts. Automaton has 8502 states and 25048 transitions. Word has length 9 [2022-07-14 14:14:12,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:12,434 INFO L495 AbstractCegarLoop]: Abstraction has 8502 states and 25048 transitions. [2022-07-14 14:14:12,435 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 14:14:12,435 INFO L276 IsEmpty]: Start isEmpty. Operand 8502 states and 25048 transitions. [2022-07-14 14:14:12,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-14 14:14:12,435 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:12,435 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 1, 1, 1] [2022-07-14 14:14:12,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:12,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:12,648 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-14 14:14:12,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:12,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1482895188, now seen corresponding path program 3 times [2022-07-14 14:14:12,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:12,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209806067] [2022-07-14 14:14:12,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:12,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:12,684 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:14:12,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [120821780] [2022-07-14 14:14:12,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 14:14:12,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:12,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:12,686 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:14:12,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 14:14:12,992 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-14 14:14:12,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:14:12,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 14:14:12,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:13,030 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-14 14:14:13,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:14:13,167 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-14 14:14:13,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:13,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209806067] [2022-07-14 14:14:13,167 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:14:13,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120821780] [2022-07-14 14:14:13,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120821780] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:14:13,167 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:14:13,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2022-07-14 14:14:13,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108200703] [2022-07-14 14:14:13,168 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:14:13,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 14:14:13,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:13,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 14:14:13,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 14:14:13,169 INFO L87 Difference]: Start difference. First operand 8502 states and 25048 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) 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) [2022-07-14 14:14:18,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:18,593 INFO L93 Difference]: Finished difference Result 16994 states and 50080 transitions. [2022-07-14 14:14:18,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 14:14:18,594 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) 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 10 [2022-07-14 14:14:18,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:18,648 INFO L225 Difference]: With dead ends: 16994 [2022-07-14 14:14:18,649 INFO L226 Difference]: Without dead ends: 16994 [2022-07-14 14:14:18,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-07-14 14:14:18,651 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 191 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:18,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 70 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-14 14:14:18,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16994 states. [2022-07-14 14:14:18,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16994 to 8507. [2022-07-14 14:14:18,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8507 states, 8099 states have (on average 3.093715273490554) internal successors, (25056), 8506 states have internal predecessors, (25056), 0 states have call successors, (0), 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 14:14:18,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8507 states to 8507 states and 25056 transitions. [2022-07-14 14:14:18,927 INFO L78 Accepts]: Start accepts. Automaton has 8507 states and 25056 transitions. Word has length 10 [2022-07-14 14:14:18,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:18,928 INFO L495 AbstractCegarLoop]: Abstraction has 8507 states and 25056 transitions. [2022-07-14 14:14:18,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) 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) [2022-07-14 14:14:18,928 INFO L276 IsEmpty]: Start isEmpty. Operand 8507 states and 25056 transitions. [2022-07-14 14:14:18,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:14:18,928 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:18,928 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 1, 1, 1] [2022-07-14 14:14:18,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:19,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:19,137 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-14 14:14:19,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:19,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1274900582, now seen corresponding path program 1 times [2022-07-14 14:14:19,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:19,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953562751] [2022-07-14 14:14:19,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:19,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:19,212 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:14:19,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [576478697] [2022-07-14 14:14:19,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:19,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:19,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:19,220 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:14:19,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 14:14:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:19,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 14:14:19,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:19,713 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 14:14:19,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:14:19,765 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 14:14:19,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:19,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953562751] [2022-07-14 14:14:19,765 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:14:19,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576478697] [2022-07-14 14:14:19,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576478697] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:14:19,766 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:14:19,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-07-14 14:14:19,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132876746] [2022-07-14 14:14:19,766 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:14:19,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 14:14:19,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:19,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 14:14:19,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-14 14:14:19,767 INFO L87 Difference]: Start difference. First operand 8507 states and 25056 transitions. Second operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:20,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:20,675 INFO L93 Difference]: Finished difference Result 8540 states and 25092 transitions. [2022-07-14 14:14:20,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 14:14:20,676 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-14 14:14:20,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:20,695 INFO L225 Difference]: With dead ends: 8540 [2022-07-14 14:14:20,695 INFO L226 Difference]: Without dead ends: 8540 [2022-07-14 14:14:20,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-14 14:14:20,696 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 39 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:20,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 84 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-14 14:14:20,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8540 states. [2022-07-14 14:14:20,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8540 to 8525. [2022-07-14 14:14:20,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8525 states, 8117 states have (on average 3.09128988542565) internal successors, (25092), 8524 states have internal predecessors, (25092), 0 states have call successors, (0), 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 14:14:20,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8525 states to 8525 states and 25092 transitions. [2022-07-14 14:14:20,868 INFO L78 Accepts]: Start accepts. Automaton has 8525 states and 25092 transitions. Word has length 11 [2022-07-14 14:14:20,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:20,868 INFO L495 AbstractCegarLoop]: Abstraction has 8525 states and 25092 transitions. [2022-07-14 14:14:20,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:20,868 INFO L276 IsEmpty]: Start isEmpty. Operand 8525 states and 25092 transitions. [2022-07-14 14:14:20,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-14 14:14:20,869 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:20,869 INFO L195 NwaCegarLoop]: trace histogram [12, 2, 1, 1, 1] [2022-07-14 14:14:20,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:21,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:21,076 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-14 14:14:21,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:21,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1901818630, now seen corresponding path program 2 times [2022-07-14 14:14:21,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:21,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113299076] [2022-07-14 14:14:21,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:21,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:21,177 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:14:21,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [414391290] [2022-07-14 14:14:21,178 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:14:21,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:21,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:21,179 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:14:21,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-14 14:14:21,853 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 14:14:21,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:14:21,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 14:14:21,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:21,949 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 34 proven. 55 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 14:14:21,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:14:22,102 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 34 proven. 55 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 14:14:22,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:22,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113299076] [2022-07-14 14:14:22,103 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:14:22,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414391290] [2022-07-14 14:14:22,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414391290] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:14:22,103 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:14:22,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2022-07-14 14:14:22,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623612911] [2022-07-14 14:14:22,103 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:14:22,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-14 14:14:22,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:22,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-14 14:14:22,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-14 14:14:22,104 INFO L87 Difference]: Start difference. First operand 8525 states and 25092 transitions. Second operand has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:23,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:23,590 INFO L93 Difference]: Finished difference Result 8600 states and 25164 transitions. [2022-07-14 14:14:23,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-14 14:14:23,591 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-14 14:14:23,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:23,612 INFO L225 Difference]: With dead ends: 8600 [2022-07-14 14:14:23,612 INFO L226 Difference]: Without dead ends: 8600 [2022-07-14 14:14:23,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-14 14:14:23,613 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 83 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:23,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 98 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-14 14:14:23,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8600 states. [2022-07-14 14:14:23,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8600 to 8561. [2022-07-14 14:14:23,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8561 states, 8153 states have (on average 3.0864712375812586) internal successors, (25164), 8560 states have internal predecessors, (25164), 0 states have call successors, (0), 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 14:14:23,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8561 states to 8561 states and 25164 transitions. [2022-07-14 14:14:23,819 INFO L78 Accepts]: Start accepts. Automaton has 8561 states and 25164 transitions. Word has length 17 [2022-07-14 14:14:23,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:23,819 INFO L495 AbstractCegarLoop]: Abstraction has 8561 states and 25164 transitions. [2022-07-14 14:14:23,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:23,819 INFO L276 IsEmpty]: Start isEmpty. Operand 8561 states and 25164 transitions. [2022-07-14 14:14:23,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-14 14:14:23,820 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:23,821 INFO L195 NwaCegarLoop]: trace histogram [24, 2, 1, 1, 1] [2022-07-14 14:14:23,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:24,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-14 14:14:24,036 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-14 14:14:24,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:24,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1796992954, now seen corresponding path program 3 times [2022-07-14 14:14:24,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:24,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846797062] [2022-07-14 14:14:24,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:24,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:24,194 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:14:24,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2024648525] [2022-07-14 14:14:24,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 14:14:24,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:24,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:24,196 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:14:24,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-14 14:14:24,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-14 14:14:24,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:14:24,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 14:14:24,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:25,006 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2022-07-14 14:14:25,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:14:25,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:25,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846797062] [2022-07-14 14:14:25,006 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:14:25,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024648525] [2022-07-14 14:14:25,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024648525] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:25,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:14:25,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 14:14:25,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163530724] [2022-07-14 14:14:25,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:25,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:14:25,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:25,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:14:25,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:14:25,008 INFO L87 Difference]: Start difference. First operand 8561 states and 25164 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2022-07-14 14:14:25,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:25,606 INFO L93 Difference]: Finished difference Result 8559 states and 25120 transitions. [2022-07-14 14:14:25,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:14:25,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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 29 [2022-07-14 14:14:25,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:25,634 INFO L225 Difference]: With dead ends: 8559 [2022-07-14 14:14:25,634 INFO L226 Difference]: Without dead ends: 8559 [2022-07-14 14:14:25,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:14:25,635 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 176 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:25,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 14 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 14:14:25,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8559 states. [2022-07-14 14:14:25,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8559 to 8559. [2022-07-14 14:14:25,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8559 states, 8153 states have (on average 3.0810744511222863) internal successors, (25120), 8558 states have internal predecessors, (25120), 0 states have call successors, (0), 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 14:14:25,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8559 states to 8559 states and 25120 transitions. [2022-07-14 14:14:25,789 INFO L78 Accepts]: Start accepts. Automaton has 8559 states and 25120 transitions. Word has length 29 [2022-07-14 14:14:25,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:25,789 INFO L495 AbstractCegarLoop]: Abstraction has 8559 states and 25120 transitions. [2022-07-14 14:14:25,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2022-07-14 14:14:25,789 INFO L276 IsEmpty]: Start isEmpty. Operand 8559 states and 25120 transitions. [2022-07-14 14:14:25,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 14:14:25,790 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:25,790 INFO L195 NwaCegarLoop]: trace histogram [44, 2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:14:25,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:25,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-14 14:14:25,999 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-14 14:14:26,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:26,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1412888912, now seen corresponding path program 1 times [2022-07-14 14:14:26,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:26,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626861129] [2022-07-14 14:14:26,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:26,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:26,308 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:14:26,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2105097094] [2022-07-14 14:14:26,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:26,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:26,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:26,310 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:14:26,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-14 14:14:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:28,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 10472 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-14 14:14:28,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:28,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 531 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-07-14 14:14:28,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:14:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 531 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-07-14 14:14:29,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:29,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626861129] [2022-07-14 14:14:29,097 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:14:29,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105097094] [2022-07-14 14:14:29,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105097094] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:14:29,097 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:14:29,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 32 [2022-07-14 14:14:29,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38737218] [2022-07-14 14:14:29,098 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:14:29,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-07-14 14:14:29,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:29,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-07-14 14:14:29,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-07-14 14:14:29,099 INFO L87 Difference]: Start difference. First operand 8559 states and 25120 transitions. Second operand has 32 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 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 14:14:30,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:30,812 INFO L93 Difference]: Finished difference Result 8610 states and 25152 transitions. [2022-07-14 14:14:30,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-14 14:14:30,812 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 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 53 [2022-07-14 14:14:30,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:30,832 INFO L225 Difference]: With dead ends: 8610 [2022-07-14 14:14:30,833 INFO L226 Difference]: Without dead ends: 8610 [2022-07-14 14:14:30,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-07-14 14:14:30,834 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 104 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:30,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 42 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-14 14:14:30,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8610 states. [2022-07-14 14:14:30,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8610 to 8583. [2022-07-14 14:14:30,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8583 states, 8177 states have (on average 3.0759447230035466) internal successors, (25152), 8582 states have internal predecessors, (25152), 0 states have call successors, (0), 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 14:14:30,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8583 states to 8583 states and 25152 transitions. [2022-07-14 14:14:30,984 INFO L78 Accepts]: Start accepts. Automaton has 8583 states and 25152 transitions. Word has length 53 [2022-07-14 14:14:30,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:30,985 INFO L495 AbstractCegarLoop]: Abstraction has 8583 states and 25152 transitions. [2022-07-14 14:14:30,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 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 14:14:30,985 INFO L276 IsEmpty]: Start isEmpty. Operand 8583 states and 25152 transitions. [2022-07-14 14:14:30,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-14 14:14:30,986 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:30,986 INFO L195 NwaCegarLoop]: trace histogram [60, 2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:14:31,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:31,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-14 14:14:31,191 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-14 14:14:31,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:31,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1383573168, now seen corresponding path program 2 times [2022-07-14 14:14:31,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:31,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467769319] [2022-07-14 14:14:31,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:31,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:31,602 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:14:31,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [947052541] [2022-07-14 14:14:31,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:14:31,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:31,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:31,604 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:14:31,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-14 14:14:33,433 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 14:14:33,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:14:33,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:14:33,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:33,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1894 trivial. 0 not checked. [2022-07-14 14:14:33,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:14:33,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:33,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467769319] [2022-07-14 14:14:33,479 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:14:33,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947052541] [2022-07-14 14:14:33,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947052541] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:33,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:14:33,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:14:33,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639467609] [2022-07-14 14:14:33,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:33,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:14:33,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:33,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:14:33,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:33,482 INFO L87 Difference]: Start difference. First operand 8583 states and 25152 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) [2022-07-14 14:14:33,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:33,732 INFO L93 Difference]: Finished difference Result 8399 states and 24771 transitions. [2022-07-14 14:14:33,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:14:33,733 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 69 [2022-07-14 14:14:33,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:33,752 INFO L225 Difference]: With dead ends: 8399 [2022-07-14 14:14:33,752 INFO L226 Difference]: Without dead ends: 8399 [2022-07-14 14:14:33,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 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 14:14:33,753 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 29 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:33,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 28 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:14:33,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8399 states. [2022-07-14 14:14:33,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8399 to 8399. [2022-07-14 14:14:33,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8399 states, 8021 states have (on average 3.0882682957237253) internal successors, (24771), 8398 states have internal predecessors, (24771), 0 states have call successors, (0), 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 14:14:33,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8399 states to 8399 states and 24771 transitions. [2022-07-14 14:14:33,922 INFO L78 Accepts]: Start accepts. Automaton has 8399 states and 24771 transitions. Word has length 69 [2022-07-14 14:14:33,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:33,922 INFO L495 AbstractCegarLoop]: Abstraction has 8399 states and 24771 transitions. [2022-07-14 14:14:33,922 INFO L496 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) [2022-07-14 14:14:33,922 INFO L276 IsEmpty]: Start isEmpty. Operand 8399 states and 24771 transitions. [2022-07-14 14:14:33,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-14 14:14:33,923 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:33,923 INFO L195 NwaCegarLoop]: trace histogram [60, 2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:14:33,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:34,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-14 14:14:34,125 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-14 14:14:34,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:34,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1383573214, now seen corresponding path program 1 times [2022-07-14 14:14:34,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:34,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747159035] [2022-07-14 14:14:34,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:34,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:34,630 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:14:34,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1419965477] [2022-07-14 14:14:34,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:34,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:34,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:34,632 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:14:34,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-14 14:14:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:38,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 14216 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:14:38,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:38,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 964 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-07-14 14:14:38,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:14:38,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 964 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-07-14 14:14:38,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:38,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747159035] [2022-07-14 14:14:38,636 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:14:38,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419965477] [2022-07-14 14:14:38,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419965477] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:14:38,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:14:38,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-07-14 14:14:38,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032066163] [2022-07-14 14:14:38,637 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:14:38,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 14:14:38,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:38,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 14:14:38,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-14 14:14:38,637 INFO L87 Difference]: Start difference. First operand 8399 states and 24771 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:39,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:39,169 INFO L93 Difference]: Finished difference Result 8496 states and 24958 transitions. [2022-07-14 14:14:39,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 14:14:39,170 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-14 14:14:39,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:39,190 INFO L225 Difference]: With dead ends: 8496 [2022-07-14 14:14:39,191 INFO L226 Difference]: Without dead ends: 8496 [2022-07-14 14:14:39,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-14 14:14:39,191 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 18 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:39,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 56 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 14:14:39,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8496 states. [2022-07-14 14:14:39,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8496 to 8496. [2022-07-14 14:14:39,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8496 states, 8118 states have (on average 3.0744025622074402) internal successors, (24958), 8495 states have internal predecessors, (24958), 0 states have call successors, (0), 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 14:14:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 24958 transitions. [2022-07-14 14:14:39,366 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 24958 transitions. Word has length 69 [2022-07-14 14:14:39,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:39,366 INFO L495 AbstractCegarLoop]: Abstraction has 8496 states and 24958 transitions. [2022-07-14 14:14:39,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:39,367 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 24958 transitions. [2022-07-14 14:14:39,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-14 14:14:39,367 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:39,367 INFO L195 NwaCegarLoop]: trace histogram [62, 3, 2, 1, 1] [2022-07-14 14:14:39,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:39,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-14 14:14:39,569 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-14 14:14:39,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:39,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1388172874, now seen corresponding path program 4 times [2022-07-14 14:14:39,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:39,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853385933] [2022-07-14 14:14:39,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:39,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:39,990 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:14:39,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1091836814] [2022-07-14 14:14:39,991 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-14 14:14:39,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:39,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:39,992 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:14:39,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process