./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-3.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/uthash-2.0.2/uthash_SAX_test4-3.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 f41a78d87834195eab5eb2e1b786d665ee0f261c86aa89f4e0ae15aff9e9d1ee --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:34:57,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:34:57,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:34:57,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:34:57,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:34:57,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:34:57,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:34:57,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:34:57,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:34:57,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:34:57,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:34:57,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:34:57,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:34:57,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:34:57,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:34:57,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:34:57,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:34:57,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:34:57,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:34:57,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:34:57,296 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:34:57,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:34:57,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:34:57,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:34:57,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:34:57,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:34:57,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:34:57,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:34:57,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:34:57,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:34:57,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:34:57,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:34:57,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:34:57,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:34:57,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:34:57,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:34:57,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:34:57,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:34:57,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:34:57,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:34:57,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:34:57,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:34:57,314 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:34:57,335 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:34:57,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:34:57,336 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:34:57,336 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:34:57,337 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:34:57,337 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:34:57,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:34:57,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:34:57,338 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:34:57,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:34:57,339 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:34:57,339 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:34:57,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:34:57,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:34:57,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:34:57,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:34:57,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:34:57,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:34:57,340 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:34:57,340 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:34:57,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:34:57,341 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:34:57,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:34:57,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:34:57,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:34:57,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:34:57,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:34:57,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:34:57,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:34:57,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:34:57,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:34:57,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:34:57,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:34:57,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41a78d87834195eab5eb2e1b786d665ee0f261c86aa89f4e0ae15aff9e9d1ee [2022-07-14 14:34:57,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:34:57,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:34:57,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:34:57,562 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:34:57,562 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:34:57,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-3.i [2022-07-14 14:34:57,620 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/041278701/d8cb198397cf49acb518137a4948c939/FLAG51fc4601b [2022-07-14 14:34:58,091 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:34:58,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-3.i [2022-07-14 14:34:58,116 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/041278701/d8cb198397cf49acb518137a4948c939/FLAG51fc4601b [2022-07-14 14:34:58,130 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/041278701/d8cb198397cf49acb518137a4948c939 [2022-07-14 14:34:58,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:34:58,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:34:58,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:34:58,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:34:58,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:34:58,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:34:58" (1/1) ... [2022-07-14 14:34:58,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31eed76f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:34:58, skipping insertion in model container [2022-07-14 14:34:58,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:34:58" (1/1) ... [2022-07-14 14:34:58,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:34:58,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:34:58,463 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/uthash-2.0.2/uthash_SAX_test4-3.i[33021,33034] [2022-07-14 14:34:58,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:34:58,564 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:34:58,586 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/uthash-2.0.2/uthash_SAX_test4-3.i[33021,33034] [2022-07-14 14:34:58,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:34:58,692 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:34:58,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:34:58 WrapperNode [2022-07-14 14:34:58,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:34:58,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:34:58,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:34:58,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:34:58,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:34:58" (1/1) ... [2022-07-14 14:34:58,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:34:58" (1/1) ... [2022-07-14 14:34:58,824 INFO L137 Inliner]: procedures = 177, calls = 448, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1451 [2022-07-14 14:34:58,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:34:58,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:34:58,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:34:58,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:34:58,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:34:58" (1/1) ... [2022-07-14 14:34:58,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:34:58" (1/1) ... [2022-07-14 14:34:58,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:34:58" (1/1) ... [2022-07-14 14:34:58,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:34:58" (1/1) ... [2022-07-14 14:34:58,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:34:58" (1/1) ... [2022-07-14 14:34:58,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:34:58" (1/1) ... [2022-07-14 14:34:58,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:34:58" (1/1) ... [2022-07-14 14:34:58,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:34:58,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:34:58,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:34:58,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:34:58,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:34:58" (1/1) ... [2022-07-14 14:34:58,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:34:59,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:34:59,033 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 14:34:59,051 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 14:34:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:34:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-14 14:34:59,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-14 14:34:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:34:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 14:34:59,064 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 14:34:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 14:34:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:34:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:34:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 14:34:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 14:34:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:34:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:34:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:34:59,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:34:59,340 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:34:59,341 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:35:00,340 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:35:00,346 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:35:00,346 INFO L299 CfgBuilder]: Removed 77 assume(true) statements. [2022-07-14 14:35:00,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:35:00 BoogieIcfgContainer [2022-07-14 14:35:00,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:35:00,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:35:00,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:35:00,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:35:00,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:34:58" (1/3) ... [2022-07-14 14:35:00,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbc51c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:35:00, skipping insertion in model container [2022-07-14 14:35:00,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:34:58" (2/3) ... [2022-07-14 14:35:00,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbc51c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:35:00, skipping insertion in model container [2022-07-14 14:35:00,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:35:00" (3/3) ... [2022-07-14 14:35:00,353 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test4-3.i [2022-07-14 14:35:00,363 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:35:00,363 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-14 14:35:00,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:35:00,418 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@4cbc447a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@68539e31 [2022-07-14 14:35:00,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-14 14:35:00,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 271 states, 246 states have (on average 1.6951219512195121) internal successors, (417), 262 states have internal predecessors, (417), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-14 14:35:00,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 14:35:00,427 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:35:00,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-14 14:35:00,427 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:35:00,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:35:00,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1126982839, now seen corresponding path program 1 times [2022-07-14 14:35:00,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:35:00,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428170308] [2022-07-14 14:35:00,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:00,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:35:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:35:00,531 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 14:35:00,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:35:00,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428170308] [2022-07-14 14:35:00,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428170308] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:35:00,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:35:00,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:35:00,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365870101] [2022-07-14 14:35:00,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:35:00,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:35:00,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:35:00,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:35:00,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:35:00,555 INFO L87 Difference]: Start difference. First operand has 271 states, 246 states have (on average 1.6951219512195121) internal successors, (417), 262 states have internal predecessors, (417), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 2.0) 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 14:35:00,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:35:00,640 INFO L93 Difference]: Finished difference Result 715 states and 1205 transitions. [2022-07-14 14:35:00,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:35:00,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) 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 6 [2022-07-14 14:35:00,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:35:00,653 INFO L225 Difference]: With dead ends: 715 [2022-07-14 14:35:00,654 INFO L226 Difference]: Without dead ends: 392 [2022-07-14 14:35:00,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 14:35:00,659 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 217 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:35:00,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 725 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:35:00,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-07-14 14:35:00,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 220. [2022-07-14 14:35:00,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 197 states have (on average 1.3299492385786802) internal successors, (262), 211 states have internal predecessors, (262), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-14 14:35:00,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 294 transitions. [2022-07-14 14:35:00,700 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 294 transitions. Word has length 6 [2022-07-14 14:35:00,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:35:00,700 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 294 transitions. [2022-07-14 14:35:00,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) 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 14:35:00,701 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 294 transitions. [2022-07-14 14:35:00,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-14 14:35:00,705 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:35:00,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:35:00,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:35:00,706 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:35:00,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:35:00,706 INFO L85 PathProgramCache]: Analyzing trace with hash 765811442, now seen corresponding path program 1 times [2022-07-14 14:35:00,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:35:00,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765611701] [2022-07-14 14:35:00,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:00,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:35:00,918 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:35:00,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1986686396] [2022-07-14 14:35:00,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:00,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:35:00,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:35:00,922 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 14:35:00,923 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 14:35:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:35:01,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 2966 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:35:01,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:35:01,809 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 14:35:01,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:35:01,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:35:01,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765611701] [2022-07-14 14:35:01,810 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:35:01,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986686396] [2022-07-14 14:35:01,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986686396] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:35:01,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:35:01,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:35:01,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910165876] [2022-07-14 14:35:01,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:35:01,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:35:01,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:35:01,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:35:01,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:35:01,814 INFO L87 Difference]: Start difference. First operand 220 states and 294 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 14:35:01,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:35:01,882 INFO L93 Difference]: Finished difference Result 455 states and 613 transitions. [2022-07-14 14:35:01,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:35:01,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-14 14:35:01,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:35:01,884 INFO L225 Difference]: With dead ends: 455 [2022-07-14 14:35:01,884 INFO L226 Difference]: Without dead ends: 241 [2022-07-14 14:35:01,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 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 14:35:01,886 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 9 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:35:01,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 525 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:35:01,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-07-14 14:35:01,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 240. [2022-07-14 14:35:01,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 217 states have (on average 1.2995391705069124) internal successors, (282), 231 states have internal predecessors, (282), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-14 14:35:01,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 314 transitions. [2022-07-14 14:35:01,899 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 314 transitions. Word has length 103 [2022-07-14 14:35:01,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:35:01,899 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 314 transitions. [2022-07-14 14:35:01,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 14:35:01,900 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 314 transitions. [2022-07-14 14:35:01,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-14 14:35:01,902 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:35:01,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:35:01,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 14:35:02,125 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 14:35:02,125 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:35:02,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:35:02,126 INFO L85 PathProgramCache]: Analyzing trace with hash 525571696, now seen corresponding path program 1 times [2022-07-14 14:35:02,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:35:02,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326396125] [2022-07-14 14:35:02,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:02,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:35:02,308 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:35:02,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [819815154] [2022-07-14 14:35:02,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:02,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:35:02,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:35:02,310 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 14:35:02,312 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 14:35:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:35:03,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 2968 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:35:03,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:35:03,224 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 14:35:03,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:35:03,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:35:03,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326396125] [2022-07-14 14:35:03,224 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:35:03,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819815154] [2022-07-14 14:35:03,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819815154] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:35:03,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:35:03,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:35:03,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002418918] [2022-07-14 14:35:03,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:35:03,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:35:03,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:35:03,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:35:03,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:35:03,227 INFO L87 Difference]: Start difference. First operand 240 states and 314 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 14:35:03,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:35:03,272 INFO L93 Difference]: Finished difference Result 495 states and 653 transitions. [2022-07-14 14:35:03,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:35:03,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-14 14:35:03,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:35:03,274 INFO L225 Difference]: With dead ends: 495 [2022-07-14 14:35:03,274 INFO L226 Difference]: Without dead ends: 261 [2022-07-14 14:35:03,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 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 14:35:03,275 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 9 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:35:03,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 525 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:35:03,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-07-14 14:35:03,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 260. [2022-07-14 14:35:03,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 237 states have (on average 1.2742616033755274) internal successors, (302), 251 states have internal predecessors, (302), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-14 14:35:03,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 334 transitions. [2022-07-14 14:35:03,289 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 334 transitions. Word has length 103 [2022-07-14 14:35:03,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:35:03,289 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 334 transitions. [2022-07-14 14:35:03,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 14:35:03,290 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 334 transitions. [2022-07-14 14:35:03,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-14 14:35:03,292 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:35:03,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:35:03,317 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 14:35:03,513 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 14:35:03,513 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:35:03,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:35:03,514 INFO L85 PathProgramCache]: Analyzing trace with hash 919938482, now seen corresponding path program 1 times [2022-07-14 14:35:03,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:35:03,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505554899] [2022-07-14 14:35:03,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:03,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:35:03,647 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:35:03,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1025163681] [2022-07-14 14:35:03,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:03,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:35:03,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:35:03,664 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 14:35:03,665 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 14:35:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:35:04,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 2970 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:35:04,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:35:04,778 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 14:35:04,778 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:35:04,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:35:04,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505554899] [2022-07-14 14:35:04,779 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:35:04,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025163681] [2022-07-14 14:35:04,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025163681] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:35:04,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:35:04,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:35:04,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659309367] [2022-07-14 14:35:04,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:35:04,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:35:04,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:35:04,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:35:04,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:35:04,781 INFO L87 Difference]: Start difference. First operand 260 states and 334 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 14:35:04,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:35:04,847 INFO L93 Difference]: Finished difference Result 505 states and 653 transitions. [2022-07-14 14:35:04,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:35:04,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-14 14:35:04,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:35:04,849 INFO L225 Difference]: With dead ends: 505 [2022-07-14 14:35:04,849 INFO L226 Difference]: Without dead ends: 251 [2022-07-14 14:35:04,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:35:04,850 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 239 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:35:04,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 562 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:35:04,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-07-14 14:35:04,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 246. [2022-07-14 14:35:04,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 223 states have (on average 1.2600896860986548) internal successors, (281), 237 states have internal predecessors, (281), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-14 14:35:04,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 313 transitions. [2022-07-14 14:35:04,860 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 313 transitions. Word has length 103 [2022-07-14 14:35:04,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:35:04,860 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 313 transitions. [2022-07-14 14:35:04,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 14:35:04,861 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 313 transitions. [2022-07-14 14:35:04,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-14 14:35:04,862 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:35:04,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:35:04,886 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 14:35:05,082 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 14:35:05,082 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:35:05,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:35:05,083 INFO L85 PathProgramCache]: Analyzing trace with hash 6087360, now seen corresponding path program 1 times [2022-07-14 14:35:05,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:35:05,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922441899] [2022-07-14 14:35:05,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:05,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:35:05,246 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:35:05,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808586903] [2022-07-14 14:35:05,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:05,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:35:05,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:35:05,248 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 14:35:05,249 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 14:35:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:35:06,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 2956 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:35:06,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:35:06,488 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 14:35:06,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:35:06,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:35:06,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922441899] [2022-07-14 14:35:06,489 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:35:06,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808586903] [2022-07-14 14:35:06,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808586903] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:35:06,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:35:06,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:35:06,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99357455] [2022-07-14 14:35:06,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:35:06,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:35:06,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:35:06,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:35:06,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:35:06,491 INFO L87 Difference]: Start difference. First operand 246 states and 313 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 14:35:06,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:35:06,557 INFO L93 Difference]: Finished difference Result 566 states and 720 transitions. [2022-07-14 14:35:06,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:35:06,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-14 14:35:06,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:35:06,560 INFO L225 Difference]: With dead ends: 566 [2022-07-14 14:35:06,560 INFO L226 Difference]: Without dead ends: 326 [2022-07-14 14:35:06,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:35:06,561 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 232 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:35:06,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 857 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:35:06,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-07-14 14:35:06,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 232. [2022-07-14 14:35:06,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 209 states have (on average 1.244019138755981) internal successors, (260), 223 states have internal predecessors, (260), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-14 14:35:06,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 292 transitions. [2022-07-14 14:35:06,569 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 292 transitions. Word has length 103 [2022-07-14 14:35:06,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:35:06,569 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 292 transitions. [2022-07-14 14:35:06,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 14:35:06,570 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 292 transitions. [2022-07-14 14:35:06,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-14 14:35:06,571 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:35:06,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:35:06,596 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 14:35:06,785 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 14:35:06,786 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:35:06,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:35:06,786 INFO L85 PathProgramCache]: Analyzing trace with hash 2030023538, now seen corresponding path program 1 times [2022-07-14 14:35:06,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:35:06,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348497614] [2022-07-14 14:35:06,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:06,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:35:06,903 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:35:06,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1477969234] [2022-07-14 14:35:06,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:06,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:35:06,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:35:06,905 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 14:35:06,931 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 14:35:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:35:08,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 2942 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:35:08,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:35:08,410 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 14:35:08,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:35:08,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:35:08,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348497614] [2022-07-14 14:35:08,411 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:35:08,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477969234] [2022-07-14 14:35:08,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477969234] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:35:08,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:35:08,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:35:08,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759760221] [2022-07-14 14:35:08,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:35:08,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:35:08,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:35:08,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:35:08,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:35:08,413 INFO L87 Difference]: Start difference. First operand 232 states and 292 transitions. Second operand has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 14:35:08,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:35:08,454 INFO L93 Difference]: Finished difference Result 416 states and 516 transitions. [2022-07-14 14:35:08,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 14:35:08,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-14 14:35:08,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:35:08,457 INFO L225 Difference]: With dead ends: 416 [2022-07-14 14:35:08,457 INFO L226 Difference]: Without dead ends: 415 [2022-07-14 14:35:08,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:35:08,458 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 105 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:35:08,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 936 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:35:08,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-07-14 14:35:08,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 413. [2022-07-14 14:35:08,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 384 states have (on average 1.2213541666666667) internal successors, (469), 398 states have internal predecessors, (469), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-14 14:35:08,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 513 transitions. [2022-07-14 14:35:08,468 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 513 transitions. Word has length 103 [2022-07-14 14:35:08,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:35:08,468 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 513 transitions. [2022-07-14 14:35:08,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 14:35:08,469 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 513 transitions. [2022-07-14 14:35:08,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-14 14:35:08,469 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:35:08,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:35:08,497 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 14:35:08,683 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 14:35:08,684 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:35:08,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:35:08,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1493778997, now seen corresponding path program 1 times [2022-07-14 14:35:08,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:35:08,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315954072] [2022-07-14 14:35:08,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:08,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:35:08,825 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:35:08,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1022833066] [2022-07-14 14:35:08,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:08,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:35:08,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:35:08,849 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 14:35:08,850 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 14:35:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:35:10,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 2943 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:35:10,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:35:10,453 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 14:35:10,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:35:10,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:35:10,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315954072] [2022-07-14 14:35:10,454 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:35:10,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022833066] [2022-07-14 14:35:10,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022833066] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:35:10,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:35:10,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:35:10,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130777857] [2022-07-14 14:35:10,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:35:10,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:35:10,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:35:10,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:35:10,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:35:10,456 INFO L87 Difference]: Start difference. First operand 413 states and 513 transitions. Second operand has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 14:35:10,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:35:10,482 INFO L93 Difference]: Finished difference Result 413 states and 513 transitions. [2022-07-14 14:35:10,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:35:10,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2022-07-14 14:35:10,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:35:10,484 INFO L225 Difference]: With dead ends: 413 [2022-07-14 14:35:10,484 INFO L226 Difference]: Without dead ends: 412 [2022-07-14 14:35:10,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:35:10,485 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 135 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:35:10,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 553 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:35:10,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-07-14 14:35:10,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2022-07-14 14:35:10,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 384 states have (on average 1.21875) internal successors, (468), 397 states have internal predecessors, (468), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-14 14:35:10,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 512 transitions. [2022-07-14 14:35:10,496 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 512 transitions. Word has length 104 [2022-07-14 14:35:10,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:35:10,496 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 512 transitions. [2022-07-14 14:35:10,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 14:35:10,496 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 512 transitions. [2022-07-14 14:35:10,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-14 14:35:10,497 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:35:10,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:35:10,523 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 14:35:10,708 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 14:35:10,708 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:35:10,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:35:10,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1365413568, now seen corresponding path program 1 times [2022-07-14 14:35:10,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:35:10,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434473694] [2022-07-14 14:35:10,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:10,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:35:10,863 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:35:10,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808593446] [2022-07-14 14:35:10,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:10,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:35:10,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:35:10,865 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 14:35:10,866 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 14:35:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:35:12,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 2966 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:35:12,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:35:12,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:35:12,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:35:12,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:35:12,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:35:12,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434473694] [2022-07-14 14:35:12,679 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:35:12,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808593446] [2022-07-14 14:35:12,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808593446] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:35:12,679 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:35:12,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-14 14:35:12,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571256822] [2022-07-14 14:35:12,680 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:35:12,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 14:35:12,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:35:12,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 14:35:12,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-14 14:35:12,681 INFO L87 Difference]: Start difference. First operand 412 states and 512 transitions. Second operand has 8 states, 8 states have (on average 26.5) internal successors, (212), 8 states have internal predecessors, (212), 0 states have call successors, (0), 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 14:35:12,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:35:12,761 INFO L93 Difference]: Finished difference Result 634 states and 796 transitions. [2022-07-14 14:35:12,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:35:12,762 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 26.5) internal successors, (212), 8 states have internal predecessors, (212), 0 states have call successors, (0), 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 108 [2022-07-14 14:35:12,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:35:12,764 INFO L225 Difference]: With dead ends: 634 [2022-07-14 14:35:12,764 INFO L226 Difference]: Without dead ends: 600 [2022-07-14 14:35:12,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-07-14 14:35:12,765 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 647 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:35:12,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 1523 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:35:12,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-07-14 14:35:12,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2022-07-14 14:35:12,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 566 states have (on average 1.2102473498233215) internal successors, (685), 579 states have internal predecessors, (685), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28) [2022-07-14 14:35:12,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 741 transitions. [2022-07-14 14:35:12,781 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 741 transitions. Word has length 108 [2022-07-14 14:35:12,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:35:12,782 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 741 transitions. [2022-07-14 14:35:12,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 26.5) internal successors, (212), 8 states have internal predecessors, (212), 0 states have call successors, (0), 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 14:35:12,782 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 741 transitions. [2022-07-14 14:35:12,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-14 14:35:12,783 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:35:12,783 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:35:12,824 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 14:35:13,010 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 14:35:13,010 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:35:13,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:35:13,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1366065166, now seen corresponding path program 1 times [2022-07-14 14:35:13,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:35:13,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749097810] [2022-07-14 14:35:13,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:13,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:35:13,148 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:35:13,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309681198] [2022-07-14 14:35:13,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:13,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:35:13,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:35:13,151 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 14:35:13,152 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 14:35:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:35:14,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 2972 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:35:14,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:35:15,198 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:35:15,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:35:15,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:35:15,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749097810] [2022-07-14 14:35:15,199 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:35:15,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309681198] [2022-07-14 14:35:15,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309681198] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:35:15,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:35:15,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:35:15,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176922167] [2022-07-14 14:35:15,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:35:15,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:35:15,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:35:15,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:35:15,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:35:15,200 INFO L87 Difference]: Start difference. First operand 600 states and 741 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 14:35:15,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:35:15,255 INFO L93 Difference]: Finished difference Result 1051 states and 1305 transitions. [2022-07-14 14:35:15,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:35:15,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2022-07-14 14:35:15,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:35:15,258 INFO L225 Difference]: With dead ends: 1051 [2022-07-14 14:35:15,258 INFO L226 Difference]: Without dead ends: 598 [2022-07-14 14:35:15,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 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 14:35:15,260 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 65 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:35:15,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 535 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:35:15,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-07-14 14:35:15,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2022-07-14 14:35:15,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 564 states have (on average 1.2092198581560283) internal successors, (682), 577 states have internal predecessors, (682), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28) [2022-07-14 14:35:15,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 738 transitions. [2022-07-14 14:35:15,274 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 738 transitions. Word has length 108 [2022-07-14 14:35:15,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:35:15,274 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 738 transitions. [2022-07-14 14:35:15,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 14:35:15,274 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 738 transitions. [2022-07-14 14:35:15,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-14 14:35:15,275 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:35:15,275 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:35:15,306 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 14:35:15,503 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 14:35:15,504 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:35:15,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:35:15,504 INFO L85 PathProgramCache]: Analyzing trace with hash -353330685, now seen corresponding path program 1 times [2022-07-14 14:35:15,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:35:15,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444741992] [2022-07-14 14:35:15,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:15,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:35:15,602 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:35:15,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1925815511] [2022-07-14 14:35:15,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:15,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:35:15,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:35:15,620 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 14:35:15,621 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 14:35:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:35:17,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 2109 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:35:17,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:35:17,440 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-14 14:35:17,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:35:17,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:35:17,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444741992] [2022-07-14 14:35:17,441 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:35:17,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925815511] [2022-07-14 14:35:17,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925815511] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:35:17,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:35:17,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:35:17,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681012637] [2022-07-14 14:35:17,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:35:17,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:35:17,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:35:17,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:35:17,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:35:17,444 INFO L87 Difference]: Start difference. First operand 598 states and 738 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 14:35:17,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:35:17,474 INFO L93 Difference]: Finished difference Result 1136 states and 1408 transitions. [2022-07-14 14:35:17,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:35:17,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 123 [2022-07-14 14:35:17,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:35:17,479 INFO L225 Difference]: With dead ends: 1136 [2022-07-14 14:35:17,479 INFO L226 Difference]: Without dead ends: 596 [2022-07-14 14:35:17,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 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 14:35:17,480 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 15 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:35:17,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 533 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:35:17,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-07-14 14:35:17,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2022-07-14 14:35:17,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 562 states have (on average 1.208185053380783) internal successors, (679), 575 states have internal predecessors, (679), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28) [2022-07-14 14:35:17,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 735 transitions. [2022-07-14 14:35:17,495 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 735 transitions. Word has length 123 [2022-07-14 14:35:17,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:35:17,495 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 735 transitions. [2022-07-14 14:35:17,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 14:35:17,496 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 735 transitions. [2022-07-14 14:35:17,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-14 14:35:17,497 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:35:17,497 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:35:17,560 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 14:35:17,722 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 14:35:17,722 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:35:17,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:35:17,723 INFO L85 PathProgramCache]: Analyzing trace with hash 623227202, now seen corresponding path program 1 times [2022-07-14 14:35:17,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:35:17,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459737584] [2022-07-14 14:35:17,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:17,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:35:17,782 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:35:17,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [580733187] [2022-07-14 14:35:17,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:35:17,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:35:17,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:35:17,784 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 14:35:17,787 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 14:37:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:37:58,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 14:37:58,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:37:58,449 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-14 14:37:58,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:37:58,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:37:58,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459737584] [2022-07-14 14:37:58,450 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:37:58,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580733187] [2022-07-14 14:37:58,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580733187] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:37:58,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:37:58,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:37:58,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788920407] [2022-07-14 14:37:58,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:37:58,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:37:58,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:37:58,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:37:58,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:37:58,451 INFO L87 Difference]: Start difference. First operand 596 states and 735 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-14 14:37:58,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:37:58,483 INFO L93 Difference]: Finished difference Result 1143 states and 1433 transitions. [2022-07-14 14:37:58,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:37:58,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 138 [2022-07-14 14:37:58,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:37:58,486 INFO L225 Difference]: With dead ends: 1143 [2022-07-14 14:37:58,486 INFO L226 Difference]: Without dead ends: 599 [2022-07-14 14:37:58,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:37:58,487 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 2 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:37:58,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 806 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:37:58,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-07-14 14:37:58,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2022-07-14 14:37:58,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 564 states have (on average 1.2092198581560283) internal successors, (682), 578 states have internal predecessors, (682), 28 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (34), 19 states have call predecessors, (34), 28 states have call successors, (34) [2022-07-14 14:37:58,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 744 transitions. [2022-07-14 14:37:58,501 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 744 transitions. Word has length 138 [2022-07-14 14:37:58,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:37:58,501 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 744 transitions. [2022-07-14 14:37:58,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-14 14:37:58,502 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 744 transitions. [2022-07-14 14:37:58,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-14 14:37:58,503 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:37:58,503 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:37:58,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-07-14 14:37:58,716 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 14:37:58,716 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:37:58,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:37:58,717 INFO L85 PathProgramCache]: Analyzing trace with hash -268398914, now seen corresponding path program 1 times [2022-07-14 14:37:58,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:37:58,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123228702] [2022-07-14 14:37:58,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:37:58,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:37:58,794 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:37:58,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1033511944] [2022-07-14 14:37:58,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:37:58,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:37:58,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:37:58,812 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 14:37:58,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process